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If you replace the microprocessor, make sure the new processor
chip is installed correctly. Also make sure the jumpers are set
correctly and that pin 1 on the chip is connected with pin 1 on
the system board. See Chapter 4.

The Computer Does Not Respond

The computer locks up.

Wait a few moments; if your computer does not respond after a
reasonable length of time, press

Ctrl Alt Del.

If that doesn’t

work, press the RESETbutton.

You may have installed memory using SIMMs that work at the
wrong speed. Install the correct SIMMs (see Chapter 4).

Your system may have over-heated. If you are using a DX or
DX2 processor, make sure you have an adequate heat sink
installed on the chip.

You reset the computer, but it still does not respond.

Try turning the computer off, wait 20 seconds, and turn it on
again.

Your computer suddenly stops operating.

You may have overloaded the power supply. See your option
card manual(s) for the power requirements for your option
card(s). Then check Appendix A to see if you have exceeded
the option slot power limits.

6-4

Troubleshooting

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Summary of Contents for EL 486UC+

Page 1: ...EPSON User s Guide 663 This manual is printed on 50 recycled paper 10 post consumer content ...

Page 2: ...ernal options If you purchased additional optional equipment that goes inside the computer such as option cards memory modules a hard disk or a diskette drive you should install these devices first See Chapters 4 and 5 in your User s Guide for instructions 2 Set up the computer Follow the steps in Chapter 1 of the User s Guide to connect your system components and in Chapter 2 to run the SETUP pro...

Page 3: ... following support services through EPSON Direct and the EPSON Connection Technical assistance with the installation configuration and operation of EPSON products Assistance in locating your nearest Authorized EPSON Customer Care Center Assistance with Extra Care Road Service Sales of accessories manuals or parts for EPSON products through EPSON Accessories at 800 873 7766 Customer relations EPSON...

Page 4: ...owner of an EPSON product This membership entitles you to 0 An introductory 15 credit on CompuServe 0 Your own user ID and password 0 A complimentary subscription to Compu Serve Magazine CompuServe s monthly publication To take advantage of this offer call 800 848 8199 in the United States and Canada and ask for representative 529 In other countries call the following U S telephone number 614 529 ...

Page 5: ...number Option cardsinstalled Slot I Slot 2 Slot 3 Slot 4 Slot 5 MSDOSversion and serial number Windowsversion and serial number Software Version program number Serial number EPSON is a registered trademark of Seiko Epson Corporation EPSON Direct and EPSON Connection are service marks of Epson America Inc Other product names used herein are for identification purposes only and may be trademarks of ...

Page 6: ... means electronic mechanical photocopying recording or otherwise without the prior written permission of Epson America Inc No patent liability is assumed with respect to the use of information contained herein Nor is any liability assumed for damages resulting from the use of the information contained herein Further this publication and features described herein are subject to change without notic...

Page 7: ...into the extension cord does not exceed the cord s ampere rating Also make sure the total of all devices plugged into the wall outlet does not exceed 15 amperes Except as specifically explained in this User s Guide do not attempt to service the computer yourself Adjust only those controls that are covered by the operating instructions Unplug the computer and refer servicing to qualified service pe...

Page 8: ...rdon d alimentation de l ordinateur n est pas abîmé ni effiloché l Dans le cas ou on utilise un cordon de rallonge avec l ordinateur s assurer que l intensite en amperes requise pour tous les appareils branches sur ce cordon ne soit pas superieure a la capacite du cordon S assurer aussi que cette intenste ne depasse jamais la somme de 15 amperes pour l ensemble des appareils l Sauf dans les cas sp...

Page 9: ...le to 1MB Math coprocessor built into the microprocessor on the DX and DX2 systems Built in VGA port Two built in serial ports and one built in parallel port One built in PSI 2TM compatible keyboard port and one built in PS 2 compatible mouse port Three 16 bit full length and two 8 bit half length ISA option slots if your system has a DXor DX2 processor access to the bottom 16 bit slot may be rest...

Page 10: ... may have been configured for you If so everything you need to get started is already in place Your hardware configuration options have been set to ensure optimal system performance The hard disk drive already contains the MS DOS operating system and Microsoft Windows TM In addition the drivers needed to take advantage of your system s enhanced video resolutions have been installed for you Just co...

Page 11: ...omputer s memory up to 64MB Cache Memory You can increase your cache memory to 64KB 128KB or 256KB by installing SRAM chips on the main system board Additional cache allows your system to access frequently used data faster improving overall system performance Video Memory You can install video memory chips to increase the video memory to lMB allowing you to use higher resolutions with more colors ...

Page 12: ...Use This Manual This manual contains the information you need to get the best results from your computer You don t have to read everything in this book see the following chapter summaries to find the sections you need Chapter 1 provides simple instructions for setting up your system and connecting peripheral devices such as the monitor and printer Chapter 2 describes how to run the SETUP program t...

Page 13: ... how to install and remove disk drives Chapter 6 contains troubleshooting tips Appendix A lists the specifications of your computer and the operating environments that have been tested on your system At the end of this manual you ll find an Index and a list of U S and international marketing locations Conventions Used in This Manual This manual uses the following conventions in the text Introducti...

Page 14: ... Customer Care Center 0 Customer relations 0 EPSON technical information library fax service 0 Product literature on current and new products You can purchase accessories manuals or parts for EPSON products from EPSON Accessories at 800 873 7766 U S sales only In Canada call 800 GO EPSON When you call for technical assistance be ready to identify your system and its configuration and provide any e...

Page 15: ...f CompuServe you are eligible for a free introductory membership as an owner of an EPSON product This membership entitles you to 0 An introductory 15 credit on CompuServe 0 Your own user ID and password 0 A complimentary subscription to CompuServe Magazine CompuServe s monthly publication To take advantage of this offer call 800 848 8199 in the United States and Canada and ask for representative 5...

Page 16: ...our System Getting Started 1 l Choosing a Location l l Unpacking Your Computer l 2 Connecting Peripheral Devices l 3 Connecting a Keyboard l 3 Connecting a Mouse 1 4 Connecting a Monitor l 4 Connecting a Printer or Other Device l 5 Connecting the Power Cord l 6 Turning On the Computer l 7 Turning Off the Computer l 9 Chapter 2 Running the SETUP Program Starting the SETUP Program 2 2 The System Set...

Page 17: ...ary Option 2 12 Exiting SETUP 2 12 Post SETUP Procedures 2 13 Chapter 3 Using Your Computer W o r k i n g C o m f o r t a b l y 3 l Inserting and Removing Disks 3 2 Stopping a Command or Program 3 3 R e s e t t i n g t h e C o m p u t e r 3 4 U s i n g a P a s s w o r d 3 5 Changing the Processor Speed 3 6 Chapter 4 Installing and Removing Options Removing the Cover 4 2 Replacing the Cover 4 4 Loc...

Page 18: ...ng a Hard Disk Drive From the Internal Drive Bay Installing a Drive in the Upper External Drive Bay Connecting the Drive and Power Cables R e m o v i n g a D r i v e f r o m t h e U p p e r D r i v e B a y Reconnecting the Drive and Power Cables to the Diskette Drive in the Lower Drive Bay Post installation Procedures 5 2 5 3 5 4 5 8 5 11 5 13 5 14 5 16 5 18 5 1 9 5 2 1 Chapter 6 Troubleshooting I...

Page 19: ...cs P o w e r S u p p l y Option Slot Power Limits Environmental Requirements Video Resolutions and Colors Tested Operating Environments Options Available from EPSON Hard DiskDrive Types Drive Option Information Connector Pin Assignments DMA Assignments Hardware Interrupts System Memory Map System I O Address Map Index A l A 2 A 3 A 4 A 4 A 4 A 5 A 5 A 5 A 6 A 6 A 7 A 7 A 8 A 10 A 11 A 12 A 13 A 14...

Page 20: ...o set up your system choose a safe convenient location that provides the following A flat hard surface Surfaces like beds and carpets attract static electricity which can erase data on your disks damage the computer s circuitry and prevent proper ventilation Moderate environmental conditions Select a cool dry area and protect your computer from extremes in temperature humidity dust and smoke Avoid...

Page 21: ... you unpack your system components make sure you have these items computer diskette manual keyboard Your system may also include an EPSON PS 2 compatible mouse and may come with the operating system and software already installed on a hard disk drive If you purchased any optional equipment that wasn t installed at the factory such as option cards memory modules a hard disk or a diskette drive you ...

Page 22: ...weroutlet MOUSE PA RA LLEL Connecting a Keyboard To connect a keyboard hold the cable connector so the arrow on the connector faces up Insert it into the port marked K B Connecting a Mouse If your system came with an EPSON PSI 2 compatible mouse you connect it to the computer s built in mouse port To connect the mouse insert the connector into the port marked MOUSE Setting Up Your System 1 3 ...

Page 23: ...ent type of monitor connect it to the video adapter card installed in your system instead 1 Place your monitor on top of or near the computer Turn the monitor and computer around so the backs are facing you 2 There should be two cables provided with your monitor the monitor cable to connect it to the computer and the power cable to connect it to the power source On most monitors the monitor cable ...

Page 24: ...ne bidirectional parallel and two serial ports To connect a printer or other peripheral device follow the appropriate instructions below Using the parallel port Follow these steps to connect a parallel printer 1 Place the printer next to the computer so that the backs are facing you 2 Align the connector end of the printer cable with the PARALLELport and plug it in If the connector has retaining s...

Page 25: ...r into one of the ports marked COM1 and COMC If you are connecting only one serial device use the COM1 port Connecting the Power Cord Follow these steps to connect the computer s power cord 1 Plug the power cord into the power inlet on the back of the computer WARNING To avoid an electric shock be sure to plug the cord into the computer before plugging it into the wall outlet 2 Plug the other end ...

Page 26: ...rn on your computer check the following safety rules to avoid accidentally damaging your computer or injuring yourself 0 Do not connect or disconnect any peripheral device cables including the keyboard or a mouse or power cables unless the computer s power is off 0 Never turn off or reset your computer while a disk drive light is on This can destroy data stored on the disk 0 Never turn on the comp...

Page 27: ...er indicator lights up then the screen displays the BIOS version number and copyright information The computer performs its power on diagnostics which are a series of checks that make sure everything is working correctly During diagnostics you see a screen message telling you to press F2 to run the SETUP program Chapter 2 describes starting and using SETUP When the computer completes its testing i...

Page 28: ... computer as described below then see Chapter 2 for instructions When you finish running SETUP be sure to see Post SETUP Procedures on page 2 13 for guidelines on what you need to do next Turning Off the Computer Whenever you turn off your system follow these steps 1 Save your data and exit any application program you are using 2 Check the hard disk drive light and the diskette drive light s to ma...

Page 29: ...type s and video display type 0 Automatic or manual selection of hard disk drive s 0 Automatic or manual selection of advanced hardware features for optimizing system performance 0 System booting options 0 Password security and anti virus features SETUP also allows you to see summary information about your system The SETUP program and the factory default settings are stored in the computer s ROM B...

Page 30: ...error in your configuration you hear two beeps and see an error message followed by this message P r e s s F l t o r e s u m e F 2 t o S e t u p Press F2 to run SETUP SETUP displays the Main Menu From this menu you can select the various options to identify your system s configuration and then save your new values to CMOS If you change your mind you can cancel any changes you have made and restore...

Page 31: ...cific functions The System Setup Option When you select this option you see the System Setup screen From this screen you can set the system time and date define your video display type check system memory and define the diskette drives Setting the Time and Date The real time clock in your computer continuously tracks the date and time even when the computer is turned off Once you set the System Ti...

Page 32: ...DOS and application programs that run under MS DOS use the first 640KB of memory The memory above 1MB is extended memory When you boot your system the system BIOS detects the total memory size automatically You see the memory configuration displayed in the System Memory and Extended Memory fields on this SETUP screen You cannot change these values if they are not what you expect them to be check t...

Page 33: ...e drive parameters do not match your drive check Appendix A to see if your drive s parameters are included in the hard disk drive table If not you need to define your own drive type or reformat the disk See the next section for instructions on how to define your own drive type Defining Your Own Drive Type If the parameters for your hard disk do not match the parameters detected by the auto sensing...

Page 34: ...options or you can manually set them If you installed external cache enabling cache memory improves system performance especially in large data retrieval and processing environments If you choose to configure the cache memory yourself rather than let the system configure it for you you can define the write and burst wait states and two non cacheable areas of memory However it s a good idea to let ...

Page 35: ... Enabled If you enable shadowing for specific blocks the ROM located in these blocks is copied to the shadow area Configuring Chipset Registers The system can set your Advanced Chipset Control options or you can manually change the values in the chipset registers Setting these values correctly increases your system performance however setting them incorrectly may cause your system to malfunction o...

Page 36: ...ting system from drive C first If drive C doesn t contain an operating system the computer tries to load it from drive A If you select C only the computer tries to load the operating system from drive C only If you set the Disk drive boot sequence option to C only you can disable the Floppy seek option so the system does not try to access the diskette drive at startup Disabling the Floppy seek opt...

Page 37: ...ions When you select the Security and Anti Virus option from the Main Menu you see the System Security and Anti Virus screen The password options on this screen let you define both a Supervisor and a User password You can specify whether a password is required when you start the system The Diskette Access option allows you to restrict diskette access at either the User or Supervisor password level...

Page 38: ...the Set Supervisor Password option and press Enter 2 You see a Set Supervisor Password window Type the password you want to use then press Enter You can define a password of up to eight characters 3 Type the same password a second time and press Enter You see a message that your changes have been saved 4 Press the spacebar The Supervisor Password IS option is now set to Enabled To set a User passw...

Page 39: ...have enabled the Password on boot option If you select Supervisor for this option you can access the diskette drives only if you enter the Supervisor password during system startup Someone who starts the system with a User password however will see an error message when he or she tries to access the diskette drive If you select User for the Diskette Access option you can access the diskette drives...

Page 40: ...ttings You can also return all values to the factory defaults To leave SETUP press ESC from any SETUP screen From the Main Menu you can do the following Load ROM Default Values Loads the factory default settings stored in ROM back into CMOS If you change your system configuration and then have problems you can load the ROM values to boot the system and start over Load Values from CMOS Loads the cu...

Page 41: ...u plan to use See your application program manuals for instructions You may also want to install the optional extended video drivers for some of your application programs If your computer was configured for you these drivers are already installed See the README file included on your Utility diskette for more information Note If you plan to install video drivers for Windows applications you must in...

Page 42: ...ture Keep your elbows hips and knees bent at approximately 90 degree angles and keep your wrists as close to horizontal as possible Vary your posture often and take frequent breaks Stand up stretch and move around Use a good chair Make sure your chair supports your lower back Padded armrests let you rest your arms as you work If you use a copy stand keep it at the same eye level as your screen Thi...

Page 43: ...r field of vision when you are looking at the screen Be gentle with your keyboard Too much force creates tension in your hands Also make sure your work surface has enough room for you to move the mouse or other pointing device freely Inserting and Removing Disks To insert a diskette into a 3 5 inch drive hold the diskette with the label facing up and the metal shutter leading into the drive as sho...

Page 44: ...e computer or turn it off while a diskette drive light is on You could lose data Also remove all diskettes before you turn off the computer Sopping a Command or Program You may sometimes need to stop a command or program while it is running If you have entered a DOS or application program command that you want to stop try one of the following 0 Press Pause 0 Press Ctrl C 0 Press Ctrl Break If thes...

Page 45: ...e hard disk or on a diskette in drive A so if you do not have a hard disk insert the operating system diskette in drive A If you are using DOS you can hold down Ctrl and Alt and press Del If you set the Disk drive boot sequence option in SETUP to C only see Chapter 2 the operating system must be on the hard disk when you reset the computer If you selected A then C or C then A the operating system ...

Page 46: ...but disabled the Password on boot option you must enter the password when you start SETUP If you set the Diskette Access option to Supervisor you can access a diskette drive only if you entered a Supervisor password when you started the system If you entered a User password but the Diskette Access option is set to Supervisor you see an error message when you cannot access the diskette drive When y...

Page 47: ...ast speed the speed light labeled TURBO on the front panel is on When the computer is operating at slow speed the light is off You should use fast speed for almost everything you do because your programs will work faster However certain application programs have specific timing requirements and can run only at the slower speed See your software manual to determine if this is the case Some copy pro...

Page 48: ... on the numeric keypad The speed light comes on Note You can use the commands listed above while you are running a program However if the program uses one of these commands for another function you cannot use it to change the processor speed The speed setting remains in effect until you one of do the following 0 Reset your computer 0 Turn off your computer 0 Change the speed with another keyboard ...

Page 49: ...ng 0 Locating the internal components 0 Changing the jumper settings 0 Installing and removing SIMMs single in line memory modules 0 Installing and removing option cards 0 Removing and re installing the option card connector board 0 Adding video memory 0 Installing external cache 0 Installing microprocessor upgrades Caution Never install options or change jumper settings when the computer is turne...

Page 50: ...en any peripheral devices including the monitor and printer Disconnect the computer s power cable from the electrical outlet and from the back panel Also disconnect any cables that are connected to the computer including the keyboard cable If the monitor is on top of the computer lift it off and set it to one side Turn the computer around so the back panel is facing you Remove the three screws sec...

Page 51: ...omputer by touching the metal surface of the back panel WARNING Be sure to ground yourself by touching the back panel of the computer every time you remove the cover If you are not properly grounded you could generate an electric shock that could damage a component when you touch it Installing and Removing Options 4 3 ...

Page 52: ...es are out of the way so they do not catch on the cover 4 Insert the front of the cover between the front bezel and the chassis of the computer and guide it straight down See the illustration on page 4 3 5 Replace the three cover retaining screws 6 Reconnect the computer to the monitor printer keyboard and any other peripheral devices you have Then reconnect the power cable to the back of the comp...

Page 53: ...ocating the Internal Components As you follow the instructions in this chapter refer to the illustration below to locate the different components inside your computer Installing and Removing Options 4 5 ...

Page 54: ...l certain functions These jumpers are preset at the factory to default positions See the illustration below to locate the jumpers on the system board Note These are the only jumpers you may need to change Other jumpers on the system board are for service purposes only 4 6 Installing and Removing Options ...

Page 55: ... to change jumper settings if necessary Jumpersettings Factory setting You can use MS DOS to automatically reassign parallel and serial ports Check your MS DOS manuaI for more information Setting dependson CPU Installing and Removing Options 4 7 ...

Page 56: ... the jumpers 2 If there are any option cards installed in your computer you need to remove them to access the jumpers See page 4 18 3 A jumper s setting is determined by where the jumper is placed on the pins Use the following table to identify the pin settings for 2 pin 3 pin and 4 pin jumpers To identify pin 1 look at the system board under the jumper You will see a triangle traced on the board ...

Page 57: ...ers or tweezers to pull it off its pins and gently move it to the desired position Caution Be careful not to bend the jumper pins or damage any components on the main system board 4 Replace any option cards you removed See page 4 14 for instructions Installing and Removing Options 4 9 ...

Page 58: ...There are two SIMM sockets on the main system board You can install 4MB SMB 16MB and 32MB SIMMs The following table shows the possible SIMM configurations do not install memory in any other configuration When the front of the computer is facing you BANK 0 is on the right An x in the table below indicates no SIMM installed 3MM configurations 4 10 Installing and Removing Options ...

Page 59: ...off and then follow these steps to install SIMMs 1 Make sure the front of the computer is facing you 2 Refer to the illustration on page 4 5 to locate the SIMM sockets on the right side of the system board 3 Remove any option cards that may be blocking your access to the SIMM sockets See page 4 18 for instructions 4 Position the SIMM at an angle over the empty SIMM socket as shown below Installing...

Page 60: ...you removed See page 4 14 for instructions Removing SIMMs If you need to remove SIMMs from your computer to install different ones for example make sure the computer is turned off and then follow the steps below 1 Make sure the front of the computer is facing you 2 Refer to the illustration on page 4 5 to locate the SIMM sockets on the right side of the system board 3 Remove any option cards that ...

Page 61: ...As you pull away the tabs the SIMM falls to the side Remove it from the socket 6 If necessary follow the same procedure to remove the other SIMM 7 If you are inserting different SIMMs follow the instructions on page 4 l1 to install them 8 Replace any option cards you removed as described below Installing and Removing Options 4 13 ...

Page 62: ...ard in the bottom slot because a heat sink or heat sink fan assembly may be mounted on the processor When you unpack the option card be careful not to touch any of the components on the circuit board or the gold edged connectors If you need to set it down before you install it place it gently on top of its original packing materials with the component side facing up Keep the packing materials in c...

Page 63: ...hese steps to install an option card 1 If you are using a 16 bit option slot go on to step 2 If you are using an S bit slot near the power supply you need to move the power supply before you can remove the metal slot cover Remove the screws securing the power supply to the computer as shown below Be careful not to disconnect any of the cables Slide the power supply away from the option slots until...

Page 64: ...on slot cover to the computer as shown below Keep the screw to secure the option card to the computer 3 Slide out the slot cover and set it aside Store it in a safe place in case you remove the option card later 4 16 Installing and Removing Options ...

Page 65: ...anel Once the connectors reach the slot push the card in firmly but carefully to insert it fully You should feel the card fit into place If it does not go in smoothly do not force it pull the card all the way out and try again 5 Secure the end of the card to the computer with the retaining screw 6 If you removed the power supply make sure you replace it again as outlined in step 1 Installing and R...

Page 66: ...uring the option card to the computer Then pull the card straight out of the slot 2 Set the card aside with the component side facing up 3 If you are not replacing an option card replace the option slot cover and retaining screw Removing the Option Card Connector Board You may need to remove the option card connector board to replace the microprocessor installed on your system board Follow these s...

Page 67: ...he two retaining screws securing the option card connector board to the back of the computer as shown below 3 Pull the board straight up and out of its socket and set it aside Installing and Removing Options 4 19 ...

Page 68: ...t Refer to the option card connector board illustration above 1 Position the board above its slot and push it straight into the connector as shown below 2 Secure the board to the back of the computer with its two retaining screws 3 Re install any option cards you removed See page 4 14 4 20 Installing and Removing Options ...

Page 69: ...urations each bank consists of two video memory sockets Video memory chip configuration Standard video memory Installing the Video Chips Follow these steps to install additional video DIP chips 1 Locate the memory chip sockets on the main system board shown on page 4 5 Bank 0 contains two chips soldered onto the main system board so you cannot add video memory in this bank Bank 1 contains the two ...

Page 70: ... point inward at slightly less than a 90o angle If any of the pins are bent straighten them gently with your fingers or with small tweezers to align them with the other pins Be careful when you do this the pins are fragile and can break off easily 4 Position one of the video chips over the first empty socket as shown below aligning the pins on the chip with the holes in the socket Make sure the no...

Page 71: ...displays the video memory briefly before it begins its memory test lnstalling ExternaI Cache You can install 64Kl3 128KB or 256KB of external cache on your system 0 To install 64KB of external cache use eight SRAM 28 pin 8K x 8 20ns DIP chips and one 8K x 8 20ns tag chip 0 To install 128KB of external cache use four SRAM 28 pin 32K x 8 20ns DIP chips and one 32K x 8 20ns tag chip 0 To install 256K...

Page 72: ...round yourself by touching the metal surface on the inside of the computer s back panel Then remain as stationary as possible while you install them 3 Remove the cache chips from their package and inspect them The pins should point inward at slightly less than a 90o angle If any of the pins are bent or crooked straighten them gently with your fingers or with small tweezers to align them with the o...

Page 73: ...t to make sure it is correctly aligned If the chip goes in at an angle remove it and try again When the chip is properly positioned push down firmly on both ends of the chip to make sure it is well seated 7 8 9 Repeat steps 4 through 6 for each of the remaining chips Change jumpers 526 527 528 and J29 as described on page 4 8 to correspond to the amount of cache you installed Replace any option ca...

Page 74: ...e system Upgrading the Microprocessor You can upgrade your computer by replacing the microprocessor with a faster one The following table lists the components you can use to upgrade the microprocessor in your system Microprocessor upgrade components For the DX 33 processor For the DX2150 and DX2166 processors Use the following table to identify the general steps you need to perform to upgrade your...

Page 75: ... illustration on page 4 5 to locate the microprocessor 2 Ground yourself by touching the metal surface on the inside of the computer s back panel Caution Make sure you ground yourself before you touch the processor chip Then remain as stationary as possible while you install it Do not touch the pins on the processor chip Handle the microprocessor only by the edges of its case Installing and Removi...

Page 76: ...the chip separates from the socket Keep doing this until you can lift the processor chip straight up from the socket Caution The 486SW 25 microprocessor may be soldered onto an adapter board that is seated in the microprocessor socket Make sure you position your chip puller or screwdriver just above the socket to avoid damaging the adapter board 4 Gently pull the processor chip straight up and set...

Page 77: ...ides If you are upgrading from a 486SX processor to a DX or DX2 processor you need to change the jumper settings of 521 and 522 If you are upgrading to a CPU with a different clock speed you may need to change the setting of jumper J15 See the tables on pages 4 7 and 4 8 for the correct jumper settings If you are upgrading to a DX or DX2 processor you must install a heat sink or heat sink fan asse...

Page 78: ...oprocessor you must run SETUP to update the computer s configuration See Chapter 2 for instructions Additionally you may need to add some commands to your configuration files See your operating system manual and the manual that came with your optional equipment 4 30 Installing and Removing Options ...

Page 79: ...e bay you can install a second diskette drive a tape drive a CD ROM drive or an optical drive To install or remove a drive first remove the computer s cover as described in Chapter 4 Then follow the appropriate instructions in this chapter to install and remove drives Installing a hard disk drive in the internal drive bay Removing a hard disk drive from the internal drive bay Installing a drive in...

Page 80: ...nstalling the hard disk drive above the mounting bracket Note Be sure to check the jumper settings on the hard disk drive before you install it Also you may want to know the number of cylinders heads sectors etc if the auto sensing feature in SETUP cannot correctly identify your drive See Chapter 2 and the documentation that came with your drive for this information Before you can install a hard d...

Page 81: ...our drive there may be a plastic guiderail and metal grounding plate attached to one of the mounting frames If so remove the screws securing them to the mounting frame and remove the guiderail and grounding plate plastic guiderail mounting frames 2 Then remove the two screws securing each mounting frame to the drive and remove the frames Installing and Removing Drives 5 3 ...

Page 82: ... connect both the hard disk drive ribbon cable and the power supply cable to the drive before you secure it with the mounting bracket You will not be able to attach them once the bracket is in place Connecting the drive cable to the system board If you need to connect the hard disk drive ribbon cable to the system board follow the steps below If the hard disk drive ribbon cable is already attached...

Page 83: ...he system board There is a 1 printed on the system board to identify pin 1 Make sure the holes in the cable connector fit over the pins in the system board connector then push in the cable connector Caution If you do not correctly align the holes with the pins you could severely damage your system board when you push in the cable connector Installing and Removing Drives 5 5 ...

Page 84: ... drive connector If you do not see it on the connector casing turn the drive over so you can see the drive s circuit board as shown below There is a 1 or 2 printed on the board to identify the side of the connector containing pin 1 pin 1 red wire 3 Position the connector on the cable so that the red wire aligns with pin 1 on the drive 4 Make sure the holes in the cable connector fit over all the p...

Page 85: ... cable connector so that its notched corners line up with the notched corners of the power supply connector on the hard disk drive 7 Make sure the holes fit over all the pins and then push in the connector Caution If you do not align the cable connector correctly you could severely damage your hard disk drive when you push it in Installing and Removing Drives 5 7 ...

Page 86: ...t Refer to the illustrations below and follow these steps 1 Remove the screw securing the mounting bracket to the base of the computer as shown below 2 Slide the mounting bracket toward the diskette drive bays as shown above until the slots clear the tabs 3 Lift the mounting bracket out of the computer and set it aside 5 8 Installing and Removing Drives ...

Page 87: ...bove the four pegs as shown below pegs 5 Gently lower the drive over the pegs When the pegs are inserted in the screw holes on the base of the hard disk drive the drive will not move from side to side Note If the drive isn t seated correctly on the pegs you may not be able to close the cover all the way Installing and Removing Drives 5 9 ...

Page 88: ...t the slots in the mounting bracket fit over the tabs on the base of the computer 7 Slide the bracket toward the side of the computer as shown below until the tabs hold the bracket in place 8 Secure the mounting bracket with the screw 5 10 Installing and Removing Drives ...

Page 89: ...rew securing the mounting bracket to the base of the computer and slide the mounting bracket toward the diskette drive bays until the slots clear the tabs See the illustration on page 5 8 2 Lift the mounting bracket out of the computer 3 Turn the hard disk drive over and locate the four mounting holes on the drive 4 Position the bracket on the hard disk drive aligning the holes in the bracket with...

Page 90: ...h your drive for instructions 6 Turn the drive and the mounting bracket over then slide the slots in the mounting bracket under the tabs at the base of the computer until the tabs hold the bracket in place 7 Secure the mounting bracket with the retaining screw Note If the drive does not fit within the internal bay you can move the mounting frame toward the diskette drive bays and align only one se...

Page 91: ...e hard disk drive ribbon cable and the power supply cable from the back of the drive When you disconnect the cables grasp the connectors and pull them straight out so you do not bend the pins do not pull on the cables Use the screws to again secure the hard disk drive mounting bracket to the base of the computer Installing and Removing Drives 5 13 ...

Page 92: ...u are installing a tape drive with a standard 5 25 inch diskette drive connector you can connect it using the diskette drive cable that came with your system Before you install a drive in the upper drive bay remove the cover Once you have the drive installed replace the cover following the instructions in Chapter 4 Follow these steps to install a drive in the upper drive bay 1 Remove the faceplate...

Page 93: ...ter or you are installing a drive that you don t need to access 2 Remove any brackets or mounting frames from the drive See page 5 3 for instructions 3 Slide the drive into the bay until it is flush with the front of the computer Installing and Removing Drives 5 15 ...

Page 94: ...onnecting the Drive and Power Cables To connect the drive to the computer you need to connect both the drive ribbon cable and a power supply cable Follow the steps below 1 If you are installing a diskette drive locate the diskette drive ribbon cable The connector in the middle of the cable is already connected to the system board 5 16 Installing and Removing Drives ...

Page 95: ...r as shown below If you are installing a 3 5 inch diskette drive with a header connector in the lower bay see page 5 19 for instructions on connecting this cable gap key way 3 Locate one of the power supply cables that lead from the power supply They have multi colored wires and a plastic connector on the end Installing and Removing Drives 5 17 ...

Page 96: ...damage your drive when you push them in If you installed a diskette drive in the upper bay it is drive B the lower drive is A You can change the drive assignments through your operating system or you can purchase a different diskette drive ribbon cable Removing a Drive from the Upper Drive Bay To remove a drive from the upper drive bay follow these steps 1 Remove both the ribbon cable connector an...

Page 97: ...the Drive and Power Cables to the Diskette Drive in the Lower Drive Bay If you had to disconnect the drive and power cables from the diskette drive in the lower bay refer to the illustration below while you follow these steps to reconnect the cables 1 Locate the connector on the diskette drive ribbon cable 2 Identify pin 1 on the drive and align the connector so that the red wire is at pin 1 as sh...

Page 98: ...ied at the power connector on the circuit board of the drive Push in the connector Caution If you do not align the cable connector correctly you could severely damage your hard disk drive when you push it in Post installation Procedures After you install or remove your drive s and replace the cover on your computer you need to run the SETUP program to define the correct configuration for your newl...

Page 99: ... do not solve the problem perform the steps below to identify your system and make a note of any error messages your computer displays Then contact your Authorized EPSON Servicer or call the EPSON Connection at 800 922 8911 in the U S or 800 GO EPSON in Canada Identifying Your System When you request technical assistance be ready to provide the serial number of your computer its system BIOS versio...

Page 100: ... Then select About Program Manager to see the version number Software versions In Windows applications select About from the Help menu or read the version number from the banner screen displayed when the program starts or check your software manual MS DOS version CONFIG SYS AUTOEXEC BAT At the MS DOS prompt type VER and press Enter to see the MS DOS version number At the MS DOS prompt type TYPE C ...

Page 101: ...art Check the electrical outlet for power Turn off your computer and unplug the power cord Plug a lamp into the outlet and turn it on You installed or removed system components and now your computer does not start Check to make sure you have reconnected all the internal and external cables correctly You may have installed option cards that exceed the system s power requirements Check the power req...

Page 102: ...You may have installed memory using SIMMs that work at the wrong speed Install the correct SIMMs see Chapter 4 Your system may have over heated If you are using a DX or DX2 processor make sure you have an adequate heat sink installed on the chip You reset the computer but it still does not respond Try turning the computer off wait 20 seconds and turn it on again Your computer suddenly stops operat...

Page 103: ...ock to turn off the function Monitor Problems There is no display on the screen Check that the monitor s power switch is on and that its power light is on The power light is on but you still do not see anything on the screen Check the brightness and contrast controls If you still do not see anything on the screen make sure the monitor is securely connected to the computer If you are running an app...

Page 104: ...le make sure you are not inserting a high density diskette in a double density drive If reinserting the diskette does not solve the problem insert the diskette in another diskette drive of the same type If you can read the diskette in a different drive your drive may be faulty The diskette is the tight type but you still see an error Check that the diskette is not write protected preventing the dr...

Page 105: ...lve this problem Diskette Drive Problems A newly installed diskette drive is not working properly Make sure you have installed the drive correctly and check all the cable connections You see a diskette drive error when you start your computer Run the SETUP program and configure your system for the correct type of diskette drive The diskette drive is making loud or unusual noises Contact your Autho...

Page 106: ...the IDE hard disk drive controller See Chapter 4 for jumper information Make sure the jumpers on the hard disk drive are set correctly See your hard disk drive documentation for more information You ate unable to state data on the hard disk drive If your drive was not configured make sure you have partitioned and formatted it correctly for your operating system See your operating system manual for...

Page 107: ...ange the setting of jumper 537 to position 3 4 See Chapter 4 for details on changing the jumper After you have changed J37 restart the computer leave it on for a few seconds then turn it off again This resets the SETUP values to their factory defaults Both the Supervisor and the User passwords are disabled Set J37 back to position 2 3 Then turn of the computer again Use SETUP to set a new password...

Page 108: ...See Chapter 4 for information on changing the jumper Yourapplication haslocked the computer making it unresponsive to keyboard commands Reset the computer and try again If resetting the computer does not help turn it off wait 20 seconds then turn it on again Some software like OS 2 UNIX or Novell NetWare needs a minimum of 8MB to 16MB of RAM to work correctly Check your software documentation for ...

Page 109: ...form setup procedures for any software you are using with the option card See the documentation that came with the option card to set any necessary DIP switches or jumpers on the card The computer may also have some jumpers that must be set for the option card to work properly See Chapter 4 for system jumper information Your system may need to operate at the slower processor speed to access the de...

Page 110: ...ke sure the mouse cable is securely connected to the mouse port and not the keyboard port Also make sure you installed the mouse driver correctly if necessary See the manual that came with your mouse for instructions Windows automatically installs a mouse driver Controller Problems You see a controller error for the drive controller or the I O port controllers when you start your system The indica...

Page 111: ...the way Also you may not have changed the SETUP program or the jumpers to recognize the new cache Make sure you have set t h e E x t e r n a l cache option to Enabled and set both the System shadow and the Video shadow options to Enabled See Chapter 4 for instructions on changing the jumper settings or information on installing external cache see Chapter 2 for instructions on using the SETUP progr...

Page 112: ...ing To select slow speed press Ctrl Alt to select fast speed press Ctrl Alt use the or key on the numeric keypad 4MB RAM standard on a SIMM expandable to 64MB using 4MB SMB 16MB and 32MB SIMMs SIMMs must be tin plated 72 pin 32 bit or 36 bit fast page mode type with access speed of 70ns or faster 128KB system BIOS video BIOS and SETUP code located in EPROM on main system board 512KB DRAM on main s...

Page 113: ...dar Contained in the 82C491 system controller along with 64 bytes of CMOS RAM backed up by a soldered NiCad rechargeable battery Controllers Video Diskette Hard disk Trident 8900CL VGA controller on main system board provides resolutions up to 1024 x 768 in 16 colors up to 1024 x 768 in 256 colors with 1MB of video memory Controller on main system board supports up to two diskette drives or one di...

Page 114: ...n system board 9 pin D shell connectors Keyboard PSI 2 compatible keyboard interface built into main system board 6 pin mini DIN connector Mouse PSI 2 compatible mouse interface built into main system board 6 pin mini DIN connector Option dots Three 16 bit full length and two S bit half length I O expansion slots ISA compatible 8 33 MHz bus speed on systems upgraded to a DX or DX2 processor one 16...

Page 115: ...apacity Hard disk 31 2 inch form factor hard disk drive s up drives to half height size Otherdevices Half height tape drive CD ROM optical drive or other storage device 51 4 inch or 31 2 inch with mounting frames Keyboard Detachable two position height 101 or 102 sculpted keys country dependent main typewriter keyboard numeric cursor control keypad four key cursor control keypad 12 function keys S...

Page 116: ... 8 kg without drives or keyboard Power Supply Type 65 Watt UL listed fan cooled Input ranges Maximum outputs 110 240 VAC 5 VDC at 7 5 Amps 5 VDC at 0 1 Amp 12 VDC at 2 0 Amps 12 VDC at 0 2 Amp Frequency Cables 50 60 Hz Two to main system board four to mass storage devices Option Slot Power Limits Specifications A 5 ...

Page 117: ...Environmental Requirements Video Resolutions and Colors Non interlaced and interlaced A 6 Specifications ...

Page 118: ...Windows WorkGroups Microsoft Windows NT Certified as workstation tested as File Server Your system has also received Novell s Yes NetWare tested and approved certification as a workstation As new environments become available these also will be tested Options Available from EPSON Many options for enhancing and supplementing this product are available from EPSON including the following Monitors Key...

Page 119: ...Hard Disk Drive Types A S Specifications ...

Page 120: ...Hard disk drive types continued Actual formatted size may be slightly different than size on drive label you cannot change thisvalue Specifications A 9 ...

Page 121: ...Information Hard disk drive options for high capacity 1 inch IDE drives Select 1 or none for the precomp value If neither of these optionsare available select the maximum available precomp value A 10 Specifications ...

Page 122: ...n CSis used the drive is a master if pin 28 isgrounded and a slave if pin 28 is not grounded Connector Pin Assignments Parallelport connectorpin assignments CN3 Signal Signalground Signalground Signalground Signalground Signalground Signalground Signalground Active low logic Specifications A 11 ...

Page 123: ...Serial port connector pin assignments CN4 and CN5 DMA Assignments A 12 Specifications ...

Page 124: ...Hardware Interrupts Specifications A 13 ...

Page 125: ...System Memory Map I A 14 Specifications ...

Page 126: ...System l O Address Map Specifications A 15 ...

Page 127: ...3F7 Diskette drive controller 3F8 3FF Serial port 1 6E2 6E3 Data acquisition adapter 1 790 793 Cluder adapter 1 AE2 AE3 Data acquisition adapter2 B90 893 Cluder adapter2 EE2 EE3 Data acquisition adapter3 1390 1393 Cluder adapter3 22El GPIB adapter 1 2390 2393 Cluder adapter4 42El GPIB adapter2 63El GPIB adapter3 82El GPIB adapter4 A2El GPIB adapter5 C2El GPIB adapter6 E2El GPIB adapter7 A 16 Speci...

Page 128: ...Brightness l 8 6 5 Buttons diskette release 3 2 3 power 1 7 8 RESET l 7 3 4 3 6 6 l C Cable diskette drive 5 16 20 hard disk drive 5 2 7 5 13 5 17 monitor l 34 power supply 5 4 5 6 7 5 16 19 printer l 5 serial device l 6 Cache memory banks 4 24 chip configuration 4 23 24 chip location 4 5 configuration 4 24 configuring 2 6 external 4 1 4 5 4 23 26 A 2 installing Intro 3 4 23 26 internal Intro l A ...

Page 129: ...nventional memory 2 4 Conventions text Intro 5 Coprocessor math Intro l Intro 4 A 2 Cover removing 4 2 3 replacing 4 4 CPU clock speed jumper 4 7 replacing 4 29 socket 4 26 specifications A l speed see Processor speed type jumpers 4 8 upgrading Intro 3 4 26 CTRL ALT 3 7 CTRL ALT 3 7 CTRL ALT DEL 3 4 3 6 6 4 CTRL BREAK 3 3 CTRL C 3 3 Cursor 2 2 Customer support Intro 6 7 D Data losing 3 3 Date sett...

Page 130: ...8 keyboard 6 5 read write 6 9 Extended memory 2 4 A 14 VGA Intro 2 2 13 External cache 4 1 4 5 4 23 26 A 2 see also Cache memory External device problems 6 11 F Faceplate removing 5 14 replacing 5 19 Fast processor speed 3 6 7 A l Files repairing 6 7 Fixed Disk Setup option 2 5 Formatting diskettes 6 6 hard disk drive 6 8 Frequency power supply A 5 Full length option slots A 3 Function keys SETUP ...

Page 131: ... 6 9 CPU clock 4 7 CPU type 4 8 diskette drive controller 4 7 hard disk drive 4 7 5 2 5 12 6 8 A 11 location 4 5 6 parallel port 4 7 serial ports 4 7 Jumpers system speed 4 7 VGA controller 4 7 K K B port Intro l 1 3 A 3 Key disk 3 6 6 10 Keyboard checking connections 6 5 connecting l 3 connector 1 3 A 3 errors 6 5 num lock 6 5 port Intro l 1 3 A 3 problems 6 5 PS 2 compatible Intro l 1 3 A 3 spec...

Page 132: ...2 turning on 1 8 VGA l 4 5 VGA port Intro l l 34 Mouse connecting l 34 l 6 connector l 34 A 3 driver l 4 6 12 port Intro l l 34 6 12 Mouse PSI 2 compatible Intro l 1 3 A 3 specifications A 3 MS DOS 2 4 4 7 N NetWare A 7 Num lock 6 5 Numeric coprocessor Intro l Intro 4 A 2 Numeric keypad 3 7 6 5 0 Operating system diskette 3 4 6 3 installing l 9 2 13 MS DOS 2 4 4 7 prompt l 9 reloading 3 4 version ...

Page 133: ... monitor l 5 option cards 4 15 6 l1 Power supply cables 5 4 5 6 7 5 16 19 frequency A 5 input ranges A 5 Power supply limitations 4 15 6 4 location 4 5 maximum outputs A 5 removing 4 15 type A 5 Power on diagnostics l 8 6 12 Precautions l l 2 1 7 8 4 l Printer cable l 5 connecting l 5 connector l 5 A 3 A l1 drivers 6 l1 problems 6 10 turning off l 9 4 2 turning on 1 8 Processor see CPU Processor s...

Page 134: ...dow options 2 6 starting 2 2 3 system information 2 3 system memory 2 4 system security 2 9 SETUP program system setup 2 3 system summary 2 12 user defined 2 5 Shadowing memory Intro l 2 A l BIOS ROM 2 6 video ROM 2 6 SIMMs banks 4 10 configuration 2 4 4 10 gold plated 6 12 incorrect type 6 4 installing Intro 3 4 l0 12 location 4 5 positioning 4 11 removing 4 12 13 sockets 2 4 4 5 4 l0 13 6 12 tin...

Page 135: ...ing 6 1 14 Turbo speed 4 7 Turning off computer l 9 4 2 Turning on computer l 7 U Unpacking computer l 2 User password 2 9 10 3 5 User defined hard disk drive 2 5 Utility disk compaction 6 9 V VGA connector l 3 5 controller Intro 2 4 7 A 2 interface Intro 2 A 3 jumper 4 7 monitor l 4 5 port Intro l l 34 Video BIOS 6 2 A l card option 2 4 controller Intro 2 4 7 A 2 display type 2 4 drivers see Vide...

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