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Страница 2: ...Intel and Pentium are registered trademarks ofIntelCorporation Microsoft Windows WindowsNT and MS DOS are registered trademarks of Microsoft Corporation IBM is aregistered trademark of International Business Machines Corporation 3Com is a registered trademark of 3Com Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and nam...

Страница 3: ...w Profile Computer 1 7 Midsize Computer 1 7 Enhanced Dual Interface EIDE Subsystem 1 7 Built In Video Controller 1 7 Built In NIC 1 8 Floor Stand 1 8 Computer Service 1 9 System Power Supply 1 9 Pin Assignments for the DC Power Connectors 1 10 DC Power Distribution 1 11 System Board 1 16 Main Memory 1 16 System Board Jumpers 1 17 DMA Channel Assignments 1 18 Interrupt Assignments 1 19 Technical Sp...

Страница 4: ...ST Beep Codes 3 1 System Error Messages 3 4 Chapter 4 Removing and Replacing Parts in the Low Profile System 4 1 Recommended Tools 4 1 Precautionary Measures 4 2 Computer Cover 4 3 Eject Power and Reset Buttons 4 4 Front Panel Inserts 4 5 Control Panel 4 6 Drives 4 7 3 5 Inch Diskette Drive Assembly 4 8 5 25 Inch Drive Assembly 4 9 Hard Disk Drive Assembly 4 10 System Power Supply 4 11 System Boar...

Страница 5: ...d Reset Buttons 5 5 Front Panel Inserts 5 6 Control Panel 5 7 Drives 5 8 Externally Accessible Drive Assemblies 5 9 Hard Disk Drive Bracket 5 11 Hard Disk Drive 5 12 System Power Supply 5 13 System Board Components 5 14 Expansion Cards 5 15 Expansion Card Cage 5 15 Expansion Card 5 16 Riser Board 5 17 SIMMs 5 18 Video Memory Chip 5 19 Microprocessor Heat Sink Assembly 5 20 System Battery 5 22 Syst...

Страница 6: ...ize Computer 1 15 Figure 1 14 System Board Components 1 16 Figure 1 15 System Board Jumpers 1 17 Figure 4 1 Computer Cover Removal 4 3 Figure 4 2 Eject Power and Reset Button Removal 4 4 Figure 4 3 Front Panel Insert Removal 4 5 Figure 4 4 Control Panel Removal 4 6 Figure 4 5 Drive Hardware 4 7 Figure 4 6 3 5 Inch Diskette Drive Assembly Removal 4 8 Figure 4 7 5 25 Inch Drive Assembly Removal 4 9 ...

Страница 7: ... Figure 5 14 Expansion Card Cage Removal 5 15 Figure 5 15 Expansion Card Removal 5 16 Figure 5 16 Riser Board Removal 5 17 Figure 5 17 SIMM Removal 5 18 Figure 5 18 SIMM Installation 5 18 Figure 5 19 Video Memory Chip Removal 5 19 Figure 5 20 Microprocessor Securing Clip Removal 5 20 Figure 5 21 Microprocessor and Heat Sink Assembly 5 21 Figure 5 22 System Battery Removal 5 22 Figure 5 23 System B...

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Страница 10: ...ble PCs and prior training in IBM com patible PC troubleshooting techniques In addition to information provided in this manual and the User s Guide that came with the system Dell provides the Diagnostics and Troubleshooting Guide for troubleshooting procedures and instructions on using the Dell diagnostics to test the computer system WARNING A WARNING indicates the potential for bodily harm and pr...

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Страница 13: ...tegrates the microprocessor memory controller hard disk controller video controller and other elements of the basic computer The microprocessor for the OptiPlex Gs and GS systems is installed in a ZIF socket which allows the computer to be upgraded when faster microprocessors become available Contact Dell for information about Dell supported micro processor upgrades The Pentium microprocessor cont...

Страница 14: ...ler attached to the PCI bus On the Gs models integrated Ethernet NIC Mini tower capability by attaching a floor stand Self monitoring analysis reporting technology SMART compliant hard disk drives and SMART support in the system BIOS which generates an error message at system start up if a hard disk drive has become unreliable Quick test feature in the diskette based diagnostics see Running the Di...

Страница 15: ...ly when the computer cannot be rebooted by pressing CTRL ALT DEL Before you use the reset button to initiate a hardware reset close any open application programs and files if possible right side left side front back left side front right side back Low Profile Computer Midsize Computer reset button hard disk drive access indicator power button power indicator diskette drive access indicator ...

Страница 16: ...ion switch AC power receptacle 3 5 inch diskette drive expansion card cage parallel port connector serial port 1 connector serial port 2 connector keyboard connector video connector expansion card slots 3 hard disk drive NIC connector hard disk drive interface cable diskette tape drive interface cable mouse connector DC power cable ...

Страница 17: ...er 3 Using the ISA Configuration Utility in the Reference and Installation Guide describes the ICU and provides instructions for using it to configure the computer NOTES If the Microsoft Windows NT operating system is being used set any Plug and Play expansion cards to legacy mode using the card manufac turer s configuration utility and enter the card s resources with this utility Then run the ICU...

Страница 18: ...ser Board for the Low Profile Computer Midsize Computer s Expansion Card Slots The midsize computer has five expansion card slots The riser board has three ISA expansion card connectors and three PCI expansion card connectors One PCI expansion card connector and the one ISA expansion card connector share a single expansion card slot resulting in a total of five expansion card slots see Figure 1 6 ...

Страница 19: ...IDE devices such as hard disk drives The computer s boot drive should be connected to the primary EIDE interface The secondary EIDE interface IDE2 provides support for up to two additional EIDE devices typically EIDE tape drives or CD ROM drives NOTE The externally accessible drive bays at the front of the computer are normally used for diskette drives CD ROM drives and or tape drives Hard disk dr...

Страница 20: ... Controller in the Reference and Installation Guide provides instructions for connecting the computer to and configuring it for use on an Ethernet network Floor Stand The computers can be used as either a desktop horizontal or a mini tower ver tical computer The floor stand is optional on the low profile computers and is included with the midsize computers The floor stand can be attached to the le...

Страница 21: ...tages the DC power connec tors must be connected to their corresponding power input connectors on the system board or drives Table 1 1 DC Voltage Ranges Voltage Range Maximum Output Current1 3 3 VDC 3 15 to 3 45 VDC 12 0 A1 low profile computer 14 0 A1 midsize computer 5 VDC 4 75 to 5 25 VDC 18 0 A1 low profile computer 22 0 A1 midsize computer 12 VDC 11 40 to 12 60 VDC 3 0 A2 low profile computer...

Страница 22: ...ower supply output voltages are within the ranges speci fied in Table 1 1 3 Pin 19 Thermal fan speed control TFSC is a power supply input signal used to control the power supply fan speed Figure 1 7 DC Power Connector P1 Figure 1 8 DC Power Connectors P2 Midsize Computer P3 P4 P5 and P6 Midsize Computer 11 1 PWRGOOD 2 orange 12 VDC blue 12 VDC yellow 5 VFP purple common black 2 3 4 5 6 7 8 9 10 12...

Страница 23: ... provide the following information about DC power distribution Power supply connector identification Power cable connections for diskette tape CD ROM and hard disk drives Power distribution to sockets and connectors on the system board 1 2 3 4 3 3 VDC blue white common black common black 5 P2 P7 6 3 3 VDC blue white 3 3 VDC blue white common black ...

Страница 24: ...1 12 Dell OptiPlex Gs and Gs Systems Service Manual Figure 1 10 DC Power Cables for the Low Profile Computer P5 P4 P3 P2 P1 ...

Страница 25: ...3 VDC PWRGOOD P1 POWER1 PSON 5 VFP 5 VDC 12 VDC PSON 5 VFP 5 VDC 12 VDC 12 VDC P3 5 VDC 12 VDC 12 VDC 12 VDC 12 VDC 12 VDC 3 5 inch diskette drive keyboard controller battery 5 VDC 5 VDC ISA1 ISA2 PCI1 PCI2 MICROPROCESSOR PANEL KYBD MOUSE SIMM_A SIMM_B SIMM_C SIMM_D main memory sockets P4 FAN RISER optional drive P5 riser board system board internal hard disk drive POWER2 processor core regulator ...

Страница 26: ...1 14 Dell OptiPlex Gs and Gs Systems Service Manual Figure 1 12 DC Power Cables for the Midsize Computer P7 P6 P5 P4 P3 P2 P1 ...

Страница 27: ...FP 5 VDC 5 VDC 12 VDC PWRGOOD PSON 5 VFP 5 VDC 5 VDC 12 VDC 12 VDC 3 VDC keyboard controller P3 5 VDC 12 VDC 12 VDC 12 VDC 3 5 inch diskette drive battery P1 ISA1 ISA3 PCI1 PCI3 MICROPROCESSOR PANEL KYBD MOUSE SIMM_A SIMM_B SIMM_C SIMM_D main memory sockets P4 FAN RISER internal hard disk drive P2 optional drive P5 P6 riser board system board optional drive internal hard disk drive processor core ...

Страница 28: ... have SIMMs installed See SIMMs in Chapter 4 or 5 as appropriate for your system for information on removing and replacing SIMMs battery socket BATTERY serial port 2 connector SERIAL2 serial port 1 parallel port connectors stacked PARALLEL SERIAL1 diskette tape drive interface connector DSKT front of computer primary EIDE interface connector IDE1 SIMM sockets 4 SIMM_A through SIMM_D microprocessor...

Страница 29: ...System Overview 1 17 System Board Jumpers See Figure 1 15 and Table 1 2 for jumper settings and descriptions Figure 1 15 System Board Jumpers NICRST jumpered unjumpered ...

Страница 30: ...e microprocessor s internal speed is 200 MHz otherwise the jumper should not be installed PSWD Password enable or disable Install to enable the password features BIOS Reserved Do not install a jumper NICRST NIC enable or disable Service procedure only Install jumper and boot the system to clear NIC settings and to reset the baseaddressto200h Thenremovethejumperto allow configuration changes Table ...

Страница 31: ...ce IRQ7 Generated by super I O controller to indicate that device con nected to parallel port requires service IRQ8 Generated by keyboard controller for each tick of RTC IRQ9 Available for use by an expansion card IRQ10 Available for use by an expansion card IRQ11 Available for use by an expansion card Default PCI IRQ IRQ12 Generated by keyboard controller to indicate that mouse s output buffer is...

Страница 32: ...PROM BIOS 1 Mb 128 KB Expansion Bus Bus types PCI and ISA PCI bus complies with the PCI specification 2 0 Bus speeds PCI 33 MHz ISA 8 25 MHz PCI expansion card connectors Low profile computer two one PCI connector and one ISA connector share an expansion card slot Midsize computer three one PCI connector and one ISA connector share an expansion card slot ISA expansion card connectors Low profile c...

Страница 33: ...ette drives tape drives or CD ROM drives Internal hard disk drive bays Low profile computer one bay for a 1 inch high EIDE or SCSI hard disk drive Midsize computer one bay for a 1 inch high EIDE or SCSI hard disk drive one bay for a 1 inch high or 1 6 inch high EIDE or SCSI hard disk drive Ports Externally accessible Serial DTE two 9 pin connectors 16550 compatible Parallel one 25 hole connector b...

Страница 34: ...ontrol push button Power control push button Power indicator green LED Diskette drive access indicator green LED Hard disk drive access indicator green LED Link integrity indicator on NIC connector green LED Activity indicator on NIC connector yellow LED Power Power supply wattage Low profile computer 145 W Midsize computer 200 W Power supply heat dissipation Low profile computer 808 BTUs nominal ...

Страница 35: ...ximum vibration Operating 0 25 G at 3 to 200 Hz at 1 octave min Storage 0 5 G at 3 to 200 Hz at 1 octave min Maximum shock Operating left side for mini tower orientation and bottom half sine pulse with a velocity change of 20 inches sec 50 8 cm sec Storage 27 G faired square wave with a velocity change of 200 inches sec 508 cm sec Altitude Operating 16 to 3048 m 50 to 10 000 ft Storage 16 to 10 60...

Страница 36: ...1 24 Dell OptiPlex Gs and Gs Systems Service Manual ...

Страница 37: ...ndicate the appropriate troubleshooting procedure to use After the user describes the problem follow these steps 1 Ask the user to back up any data on the hard disk drive if the system s condition permits See Maintaining the System in the online System User s Guide for infor mation about backing up data 2 Ask the user to try to duplicate the problem by repeating the operations he or she was perfor...

Страница 38: ...mly attached to one of the serial port connectors and its captive screws must be secure enough to ensure a firm connection 4 Verify that any devices attached to the serial and parallel port connec tors are properly connected Each of the serial and parallel interface cables must be firmly attached to an appropriate connector on the back of the computer as well as to the interface connector on the d...

Страница 39: ...rder to complete all of these steps To observe problem indications during the boot routine follow these steps 1 Insert the diagnostics diskette into drive A Turn on all peripherals and the computer NOTE If the computer is already on save and close all open files and application programs if possible to avoid losing any data Then perform an orderly shutdown of the operating system see the operating ...

Страница 40: ...appear Yes See Running the Diskette Based Diagnostics found later in this chapter No Proceed to step 6 6 Insert another copy of the diagnostics diskette into the diskette drive and reboot the system Does the Diagnostics Menu appear Yes See Running the Diskette Based Diagnostics found later in this chapter No Proceed to the next section Internal Visual Inspection Internal Visual Inspection A simple...

Страница 41: ...t the card in its connector and carefully push it in until it is fully seated Then reinstall the card mounting bracket s retain ing screw 4 Verify that all jumpers are set correctly For information about these jumpers see System Board Jumpers in Chap ter 1 5 Check all cable connectors inside the computer to verify that they are firmly attached to their appropriate connectors 6 Reinstall the comput...

Страница 42: ...A and then turn on the system Starting the diagnostics causes the Dell logo screen to appear on the monitor screen followed by a message indicating that the diagnostics is loading Before the diagnostics loads a program tests the portion of main memory RAM required for loading the diagnostics If a main memory error is detected a mes sage appears on the screen telling you which SIMM has failed If no...

Страница 43: ...e based diagnostics reveals the source of the problem or leads to the proper troubleshooting steps for determining the source of the problem call Dell for technical assistance For instructions see Contacting Dell in the online System User s Guide or the chapter titled Getting Help in the Diagnostics and Troubleshooting Guide ...

Страница 44: ...2 8 Dell OptiPlex Gs and Gs Systems Service Manual ...

Страница 45: ...failure you should run the appropriate tests in the diskette based diagnostics to help isolate the source of the problem See Running the Diskette Based Diagnostics in Chapter 2 POST Beep Codes If the monitor cannot display error messages during the POST the system may emit a series of beeps that identifies the problem or that can help you identify a faulty component or assembly Table 3 1 lists the...

Страница 46: ...e Faulty or improperly seated SIMM or defective system board 1 3 3 1 3 4 1 4 1 1 4 2 2 1 1 through 2 4 4 Chip or data line failure in the first 64 KB of main memory Odd even logic failure in the first 64 KB of main memory Address line failure in the first 64 KB of main memory Parity failure in the first 64 KB of main memory Bit failure in the first 64 KB of main memory Faulty or improperly seated ...

Страница 47: ...lure above address 0FFFFh Faulty or improperly seated SIMM 4 3 3 Timer chip counter 2 failure Defective system board 4 3 4 Time of day clock stopped Bad battery or defective system board 4 4 1 Serial port test failure Faulty I O chip defective system board 4 4 2 Parallel port test failure Faulty I O chip defective system board 4 4 3 Math coprocessor failure Faulty microprocessor chip or system boa...

Страница 48: ...tem cannot usually be rebooted until an appropriate hardware change has been made The following messages indicate a fatal error Bad error correction code ECC on disk read Controller has failed Data error Gate A20 failure Hard disk controller failure Hard disk drive read failure Hard disk failure Keyboard clock line failure Keyboard controller failure Keyboard data line failure Keyboard stuck key f...

Страница 49: ... or associated controller defective Faulty diskette tape drive subsystem or hard disk drive subsystem defec tive system board Data error System received un recoverable data read error from diskette or hard disk drive Faulty diskette diskette drive or hard disk drive Decreasing available memory Read write failure during POST prevents system from using available memory One or more SIMMs faulty or im...

Страница 50: ... Hard disk drive read failure Hard disk failure Hard disk drive failed to initialize Incorrect configuration settings in System Setup program improperly con nected hard disk drive cable faulty hard disk drive controller sub system defective system board or loose power cable Invalid configuration information please run SETUP program System Setup program contains incorrect system configuration setti...

Страница 51: ...ure at address read value expecting value Memory odd even logic failure at address read value expecting value Memory write read failure at address read value expecting value During memory test value read at address was incorrect Faulty or improperly seated SIMMs or defec tive system board Memory allocation error Software in use con flicts with operating system application pro gram or utility Fault...

Страница 52: ...ed on it Faulty diskette diskette tape drive subsystem or hard disk drive sub system Not a boot diskette No operating system on diskette No operating system on diskette Plug and Play Configuration Error System encountered problem in trying to configure one or more expansion cards System resource conflict Read fault Requested sector not found MS DOS cannot read from diskette or hard disk drive Syst...

Страница 53: ...attery or faulty chip defective sys tem board Time of day not set Time or date setting in System Setup program incorrect or system bat tery bad Incorrect TIME or DATE settings or defective sys tem battery Timer chip counter 2 failed Timer circuit on system board malfunctioning Defective system board Unexpected interrupt in protected mode Keyboard mouse con troller malfunctioning or one or more SIM...

Страница 54: ...mediately back up your data and replace your hard disk drive by calling your support desk or Dell Computer Corporation POST queried EIDE drive for status Drive detected possible error conditions Unreliable or defective drive Write fault Write fault on selected drive MS DOS cannot write to diskette or hard disk drive Faulty diskette or hard disk drive Table 3 2 System Error Messages Continued Messa...

Страница 55: ...s the following You have performed the steps in Precautionary Measures found later in this chapter You have removed the computer cover You can replace or reinstall a part by performing the removal procedure in reverse order unless additional information is provided Recommended Tools Most of the procedures in this chapter require the use of one or more of the fol lowing tools Small flat blade screw...

Страница 56: ... following steps in the sequence listed 1 Turn off the computer and any attached peripherals 2 Disconnect the computer and any attached peripherals from their power sources to reduce the potential for personal injury 3 Disconnect any telephone or telecommunications lines from the computer 4 Wear a wrist grounding strap and clip it to an unpainted metal sur face such as the padlock ring on the back...

Страница 57: ...o securing buttons until the cover is free to swing up 3 Raise the back of the cover and pivot it toward the front of the computer 4 Disengage the cover s hooks from the front of the chassis and lift the cover away Before you reinstall the cover fold all cables out of the way so that they do not interfere with the cover or with the proper airflow inside the computer securing buttons 2 front of com...

Страница 58: ... with the back of the cover facing you 2 To remove the 3 5 inch diskette drive eject button pull gently on the plastic part of the button until it comes free 3 To remove the power button and the reset button use a small screw driver to push in the two or three plastic clips that secure the buttons to the computer cover When these clips are released the buttons come free from the cover power button...

Страница 59: ...flat work surface with the front of the cover facing you 2 From the front of the cover use your thumbs to push inward on the insert until it slides off the two posts To replace a front panel insert position the front panel insert and then press the ring tabs over the posts If necessary use a 1 4 inch nutdriver to secure the ring tabs ring tabs 2 posts 2 computer cover upside down 5 25 inch front p...

Страница 60: ... from the PANEL connector on the system board see Figure 4 10 2 From the inside of the chassis unscrew the mounting screw securing the control panel to the chassis 3 Remove the control panel from the chassis When you reinstall the control panel be sure to put the right side of the con trol panel behind the mounting tab control panel cable control panel mounting screw mounting tab ...

Страница 61: ...an example of drive hardware that can be installed in the com puter Refer to this figure when you perform any of the procedures in the following subsections Figure 4 5 Drive Hardware diskette tape drive interface cable DC power cable hard disk drive 3 5 inch diskette drive EIDE cable ...

Страница 62: ...ive 2 Press in the two 3 5 inch diskette drive assembly latches to release the assembly Rotate the left side of the assembly up and lift the assembly out of the chassis 3 Remove the two drive mounting screws from the left side of the drive and remove the drive from the bracket When you replace the 3 5 inch diskette drive be sure the mounting holes on the right side of the drive engage the two hook...

Страница 63: ...and out of the chassis 4 Lay the 5 25 inch drive assembly upside down then remove the four screws attaching the drive to the bracket When you replace the 5 25 inch drive place the front of the drive toward the front of the bracket then install the four screws but do not tighten them Align the screws with the score marks on the bracket and tighten the screws in the order stamped on the bottom of th...

Страница 64: ...tive screw that secures the hard disk drive bracket to the chassis 3 Pivot the hard disk drive assembly up and then lift it out of the chassis 4 Remove the four hard disk drive mounting screws that attach the hard disk drive to the hard disk drive bracket When you reinstall the hard disk drive assembly be sure the tabs on the mount ing plate fully engage the notches on the chassis before you rotat...

Страница 65: ...tem board and the drives 3 Remove the power supply mounting screw at the back of the chassis 4 Slide the system power supply forward until it stops then lift it from the chassis When you replace the system power supply place it down inside the chassis and against the right side of the chassis Then slide the system power supply toward the back of the chassis and hook the tab on the side of the chas...

Страница 66: ...SERIAL1 diskette tape drive interface connector DSKT front of computer primary EIDE connector IDE1 SIMM sockets 4 SIMM_A through SIMM_D microprocessor socket MICROPROCESSOR riser board connector RISER secondary EIDE connector IDE2 NIC connector ENET jumpers control panel connector PANEL main power input connector POWER1 3 3 V power input connector POWER2 keyboard mouse connectors stacked KYBD MOUS...

Страница 67: ...any of the expansion cards leave the external cables attached to the expansion cards Expansion Card Cage Figure 4 11 Expansion Card Cage Removal To remove an expansion card cage follow these steps 1 Rotate the lever toward the back of the computer until it stops in the upright position 2 Lift the expansion card cage up and away from the computer To replace an expansion card cage keep it flush agai...

Страница 68: ...onnect any cables from the expansion card being removed 2 Remove the expansion card cage 3 Remove the retaining screw from the card mounting bracket 4 Grasp the expansion card by its corners and carefully remove it from the expansion card connector expansion card card slot opening card mounting bracket retaining screw expansion card connector riser board ...

Страница 69: ... card cage on a flat work surface with the riser board facing up 3 Remove the two riser board mounting screws 4 Lift the riser board away from the expansion card cage When you replace the riser board be sure the alignment feature on the expansion card cage engages with the alignment slot on the riser board riser board riser board mounting screws 2 expansion card cage riser board alignment slot ris...

Страница 70: ...l the SIMM is released from its socket it should pop forward slightly Then lift the SIMM away from the socket Figure 4 15 SIMM Installation To replace a SIMM place the SIMM fully into the socket at an angle Pivot the SIMM upward until the tabs lock the SIMM into the socket 1 tabs 2 2 SIMM 3 front of computer tabs 2 1 2 SIMM 3 front of computer ...

Страница 71: ... follow these steps 1 Remove the expansion card cage 2 Using a chip removal tool remove the video memory chip Pull straight up on the video memory chip being careful not to bend the pins on the chip When you replace the video memory chip be sure to orient pin 1 of the video memory chip with pin 1 of the socket socket video memory chip pin 1 ends ...

Страница 72: ...sor chip Press down on the folded part of the clip with a small screwdriver to release the clip 2 Push outward and then upward on the microprocessor socket release lever to rotate the lever to its fully vertical position see Figure 4 18 3 Lift the microprocessor chip out of its socket WARNING The microprocessor heat sink assembly can get extremely hot during system operations Be sure the assembly ...

Страница 73: ...the socket When the microprocessor heat sink assembly is in place rotate the microprocessor socket release lever to its horizontal position Hook the microprocessor securing clip over the socket tab nearest the right side of the system board and then snap it over the tab on the opposite side of the socket NOTE Pin 1 on the microprocessor is located on the corner with the largest bevel The pin 1 hol...

Страница 74: ...r fingers or with a blunt nonconducting object such as a plastic screwdriver When you replace the system battery orient the new battery with the facing up Insert the battery into its socket and snap it into place Then restore the system configuration information using the printed copy WARNING There is a danger of the new battery exploding if it is in correctly installed Replace the battery only wi...

Страница 75: ... the front of the chassis until it stops 6 Carefully lift the system board out of the chassis be sure to lift evenly and not twist the system board If you are replacing a system board remove any SIMMs video memory chips and the microprocessor from the old system board and install them on the replacement board When you reinstall the system board before you slide the system board back to lock it in ...

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Страница 77: ...the following You have performed the steps in Precautionary Measures found later in this chapter You have removed the computer cover You can replace or reinstall a part by performing the removal procedure in reverse order unless additional information is provided Recommended Tools Most of the procedures in this chapter require the use of one or more of the fol lowing tools Small flat blade screwdr...

Страница 78: ... following steps in the sequence listed 1 Turn off the computer and any attached peripherals 2 Disconnect the computer and any attached peripherals from their power sources to reduce the potential for personal injury 3 Disconnect any telephone or telecommunications lines from the computer 4 Wear a wrist grounding strap and clip it to an unpainted metal sur face such as the padlock ring on the back...

Страница 79: ...ps 1 Place the right side of the computer on a flat work surface 2 Unscrew the floor stand screw Use your fingers or a wide flat blade screwdriver to unscrew the floor stand screw 3 Pull the floor stand away from the computer Disengage the three orientation tabs that position and help secure the floor stand to the computer floor stand screw ...

Страница 80: ...curing buttons until the cover is free to swing up 3 Raise the back of the cover and pivot it toward the front of the computer 4 Disengage the cover s hooks from the front of the chassis and lift the cover away Before you reinstall the cover fold all cables out of the way so that they do not interfere with the cover or with the proper airflow inside the computer securing buttons 2 front of compute...

Страница 81: ...ace with the back of the cover facing you 2 To remove the 3 5 inch diskette drive eject button pull gently on the plastic part of the button until it comes free To remove the power button and the reset button use a small screw driver to push in the two or three plastic clips that secure the buttons to the computer cover When these clips are released the buttons come free from the cover power butto...

Страница 82: ... work surface with the front of the cover facing you 2 From the front of the cover use your thumbs to push inward on the insert until it slides off the two posts To replace a front panel insert position the front panel insert and then press the ring tabs over the posts If necessary use a 1 4 inch nutdriver to secure the ring tabs ring tabs 2 posts 2 computer cover upside down 5 25 inch front panel...

Страница 83: ...bracket 2 Disconnect the control panel cable from the PANEL connector on the system board see Figure 5 13 3 Unscrew the mounting screw securing the control panel to the chassis 4 Slide the control panel out of the hooks securing it to the chassis Note the routing of the control panel cable as you remove it from the chassis control panel control panel cable screw chassis hooks 2 ...

Страница 84: ... Refer to this figure when you perform any of the procedures in the following subsections Figure 5 6 Drive Hardware diskette tape drive interface cable DC power cable DSKT connector system power supply rotated hard disk drive bracket primary EIDE connector IDE1 secondary EIDE connector IDE2 EIDE CD ROM tape drive cable 3 5 inch diskette drive ...

Страница 85: ...diskette drive 2 Remove the bracket mounting screw 3 Rotate the left side of the 3 5 inch diskette drive assembly up and lift the assembly out of the chassis 4 Remove the two drive mounting screws from the left side of the drive and remove the drive from the bracket When you replace the 3 5 inch diskette drive be sure the two hooks on the right side of the bracket engage the mounting holes in the ...

Страница 86: ...de of the drive and slide the drive assembly forward to remove it 3 Remove the four screws securing the 5 25 inch drive to the drive bracket and lift the drive out of the bracket see Figure 5 9 Figure 5 9 5 25 Inch Drive Removal When you replace the 5 25 inch drive align the front of the drive flush with the tabs at the front of the drive bracket Insert the four screws and tighten them in the orde...

Страница 87: ...hat secures the hard disk drive bracket to the front of the chassis 3 Grasp the handle on the front of the bracket and rotate the bracket up until its tab disengages from the chassis 4 Lift the hard disk drive bracket out of the computer When you reinstall the hard disk drive bracket place the lower back tab of the bracket into position make sure that the opening in the lower back tab fits over th...

Страница 88: ...he hard disk drive to the hard disk drive bracket One hard disk drive attaches to the hard disk drive bracket at the sides of the drive The other hard disk drive attaches to the hard disk drive bracket at the bottom of the hard disk drive 3 Slide the drive out of the hard disk drive bracket hard disk drive drive mounting screws 4 for side mounted drive hard disk drive bracket drive mounting screws...

Страница 89: ...pply from the securing tab labeled RELEASE and rotate it to the right until it stops Press the securing tab to the left to release the system power supply 3 Disconnect the DC power cables from the system board and the drives 4 Lift up the front end of the system power supply and move it to the right to disengage the system power supply from the slot in the chassis 5 Lift the system power supply fr...

Страница 90: ...SERIAL1 diskette tape drive interface connector DSKT front of computer primary EIDE connector IDE1 SIMM sockets 4 SIMM_A through SIMM_D microprocessor socket MICROPROCESSOR riser board connector RISER secondary EIDE connector IDE2 NIC connector ENET jumpers control panel connector PANEL main power input connector POWER1 3 3 V power input connector POWER2 keyboard mouse connectors stacked KYBD MOUS...

Страница 91: ...y of the expansion cards leave the external cables attached to the expansion cards Expansion Card Cage Figure 5 14 Expansion Card Cage Removal To remove an expansion card cage follow these steps 1 Rotate the lever toward the back of the computer until it stops in the upright position 2 Lift the expansion card cage up and away from the computer To replace an expansion card cage keep it flush agains...

Страница 92: ...onnect any cables from the expansion card being removed 2 Remove the expansion card cage 3 Remove the retaining screw from the card mounting bracket 4 Grasp the expansion card by its corners and carefully remove it from the expansion card connector expansion card card slot opening card mounting bracket retaining screw expansion card connector riser board ...

Страница 93: ...s 1 Remove the expansion card cage and all expansion cards 2 Lay the expansion card cage on a flat work surface with the riser board facing up 3 Remove the two riser board mounting screws 4 Slide the riser board until it stops then lift the riser board away from the expansion card cage riser board mounting screws 2 expansion card cage slots 2 ...

Страница 94: ...2 Push outward on the SIMM socket s tabs until the SIMM is released from its socket It should pop forward slightly 3 Lift the SIMM away from the socket Figure 5 18 SIMM Installation To replace a SIMM place the SIMM fully into the socket at an angle Pivot the SIMM upward until the tabs lock the SIMM into the socket 2 tabs 2 3 SIMM 4 front of computer tabs 2 1 2 SIMM 3 front of computer ...

Страница 95: ...ollow these steps 1 Remove the expansion card cage 2 Using a chip removal tool remove the video memory chip Pull straight up on the video memory chip being careful not to bend the pins on the chip When you replace the video memory chip be sure to orient pin 1 of the video memory chip with pin 1 of the socket socket video memory chip pin 1 ends ...

Страница 96: ...he heat sink from the microprocessor chip Press down on the folded part of the clip with a small screwdriver to release the clip 3 Push outward and then upward on the microprocessor socket release lever to rotate the lever to its fully vertical position see Figure 5 21 4 Lift the microprocessor chip out of its socket WARNING The microprocessor heat sink assembly can get extremely hot during system...

Страница 97: ...e socket When the microprocessor heat sink assembly is in place rotate the microprocessor socket release lever to its horizontal position Hook the microprocessor securing clip over the socket tab nearest the right side of the system board and then snap it over the tab on the opposite side of the socket NOTE Pin 1 on the microprocessor is located on the corner with the largest bevel The pin 1 hole ...

Страница 98: ...ith your fingers or with a blunt nonconducting object such as a plastic screwdriver When you replace the system battery orient the new battery with the facing up Insert the battery into its socket and snap it into place Then restore the sys tem configuration information using the printed copy WARNING There is a danger of the new battery exploding if it is in correctly installed Replace the battery...

Страница 99: ...6 Slide the system board toward the front of the chassis until it stops 7 Carefully lift the system board out of the chassis be sure to lift evenly and not twist the system board If you are replacing a system board remove any SIMMs video memory chips and the microprocessor from the old system board and install them on the replacement board When you reinstall the system board before you slide the s...

Страница 100: ...5 24 Dell OptiPlex Gs and Gs Systems Service Manual ...

Страница 101: ...ntation that accompanied the operating system If the system is running Microsoft Windows 3 1x or later Microsoft Windows 95 or any other protected mode operating system do not enter the System Setup program from an MS DOS window Enter the System Setup program as described in the previous procedure Alternatively from Windows 95 you can press F8 when the Starting Windows 95 message appears to get an...

Страница 102: ...l Computer Corporation Page 1 of 2 Date Mon Nov 04 1996 System OptiPlex Gs 5166M Setup Diskette Drive A Tab Shift Tab change fields Secondary Drive 0 Auto Packet Interface Device Drive 1 None Not Installed 3 5 inch 1 44 MB change values Esc exit This category sets the time in 24 hour format hours minutes seconds for the internal clock calendar To change the value in a field enter a number or use t...

Страница 103: ...te DRIVE category and select AUTO If none of the supported drive types matches the parameters of the new drive enter parame ters directly To do so highlight the appropriate DRIVE category DRIVE 0 or DRIVE 1 and select USR1 or USR2 Press TAB to highlight each of the parameter fields in succession and enter the appropriate number for each field NOTE For all EIDE devices obtained from Dell set the ap...

Страница 104: ...GEMENT category enabled DPMS monitors and most EIDE drives automatically switch into low power mode during periods of system inactivity CAUTION Before enabling this feature check the monitor documentation to make sure the system has a DPMS compliant moni tor Otherwise there is a risk of damaging the monitor NOTES Not all EIDE hard disk drives sup port this feature Enabling this feature for drives ...

Страница 105: ...i directional or PS 2 compatible bidirectional port Windows 95 automatically configures the port for ECP mode if an ECP device is attached HARD DISK Enables or disables the system s built in EIDE hard disk drive interface DISKETTE Enables or disables system s built in diskette drive controller SPEAKER Enables or disables the built in speaker MICROPROCESSOR Displays type of microprocessor installed...

Страница 106: ...A 6 Dell OptiPlex Gs and Gs Systems Service Manual ...

Страница 107: ...ter 1 5 control panel removal 4 6 5 7 cover removal 4 3 5 4 D DC power connectors 1 10 distribution low profile computer 1 13 distribution midsize computer 1 15 voltage ranges 1 9 DIMMs See SIMMs diskette drive removal 4 8 5 9 diskette based diagnostics 2 6 DREQ line assignments 1 18 drive hardware locations 4 7 5 8 E EIDE subsystem 1 7 eject button removal 4 4 5 5 error messages list of 3 4 expan...

Страница 108: ...mpers list of 1 18 location 1 17 K key combinations 1 22 A 1 M messages error 3 4 microprocessor removal 4 18 5 20 securing clip removal 4 18 5 20 N NIC 1 8 P PCI expansion card connectors low profile computer 1 6 midsize computer 1 6 Plug and Play expansion cards 1 5 POST beep codes 3 1 power button removal 4 4 5 5 power supply about 1 9 cables low profile computer 1 12 cables midsize computer 1 ...

Страница 109: ... 1 8 video 1 7 system battery removal 4 20 5 22 system board component locations 1 16 jumpers 1 17 removal 4 21 5 23 system error messages 3 4 system features 1 2 System Setup program A 1 system unit See computer T tape drive removal 4 9 5 10 technical specifications 1 20 tools recommended 4 1 5 1 troubleshooting boot routine 2 3 external visual inspection 2 2 initial procedures 2 1 internal visua...

Страница 110: ......

Страница 111: ... Printed in the U S A P N 93817 ...

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