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Dell OptiPlex 100-Mbps, Service Manual

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A-4

Dell OptiPlex GX

pro

 Systems Service Manual

Reserved Memory

Designates a region of system board memory 
that can be supplied by an expansion card.

This feature should not be enabled unless an 
expansion card that requires special addressing 
is installed.

Fast Video BIOS

Enables shadowing and caching the BIOS for a 
video card installed in an expansion slot.

NOTE:  Some video cards are not designed to 
be shadowed or cached.  If video problems 
occur, try setting Fast Video BIOS to Off.

CPU Speed

Indicates processor speed at which system 
boots—the processor’s rated speed or a slower 
compatibility speed.

Num Lock

Determines whether keyboard’s Num Lock 
mode is activated.

Keyboard Errors

Enables or disables reporting of keyboard 
errors during POST.

System Password

Displays current status of system’s password 
security feature.  Also used to assign and verify 
a new password.

Password Status

Provides an extra measure of system security 
by letting you set the system password to 
Locked or Unlocked.

Boot Sequence

Determines whether system boots from dis-
kette (if present) or hard-disk drive.

Setup Password

Restricts access to System Setup program.

Table A-1.  System Setup Categories (continued)

Category

Function

Summary of Contents for OptiPlex 100-Mbps

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Page 2: ...ered trademarks of IntelCorporation Microsoft MS DOS Windows and Windows NTareregistered trademarksof Microsoft Corporation Novelland NetWareareregistered trademarks of Novell Inc IBM is a registered 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 entitie...

Page 3: ...m 1 6 Audio Controller 1 6 PCI Video Card 1 6 NIC 1 7 USB 1 7 Desktop Chassis 1 7 Thermal Monitoring 1 7 System Unit 1 8 System Power Supply 1 8 Pin Assignments for the DC Power Connectors 1 8 DC Power Distribution 1 10 System Board Layout 1 12 Video Memory 1 12 Main Memory 1 13 System Board Jumpers 1 13 Interrupt Assignments 1 14 DMA Channel Assignments 1 15 Technical Specifications 1 16 ...

Page 4: ...sages 3 3 Chapter 4 Removing and Replacing Parts 4 1 Recommended Tools 4 1 Precautionary Measures 4 2 Floor Stand 4 3 System Unit Cover 4 4 Eject Power and Reset Buttons 4 5 Front Panel Inserts 4 6 Indicator Card 4 7 Speaker 4 8 Drives 4 9 Drives in the Drive Cage 4 10 Hard Disk Drives 4 12 System Power Supply 4 14 Microprocessor Fan 4 15 System Board Components 4 16 Expansion Cards 4 17 Expansion...

Page 5: ...tribution 1 11 Figure 1 10 System Board Components 1 12 Figure 1 11 System Board Jumpers 1 13 Figure 4 1 Floor Stand Removal 4 3 Figure 4 2 System Unit Cover Removal 4 4 Figure 4 3 Padlock Removal 4 4 Figure 4 4 Eject Power and Reset Button Removal 4 5 Figure 4 5 Front Panel Insert Removal 4 6 Figure 4 6 Indicator Card Removal 4 7 Figure 4 7 Speaker Removal 4 8 Figure 4 8 Drive Hardware 4 9 Figure...

Page 6: ...gure 4 23 Terminator Card Removal 4 23 Figure 4 24 Add In Card Removal 4 24 Figure 4 25 System Battery Removal 4 25 Figure 4 26 System Board Removal 4 26 Figure A 1 System Setup Screens A 2 Tables Table 1 1 DC Voltage Ranges 1 8 Table 1 2 Jumper Descriptions 1 14 Table 1 3 Interrupt Assignments 1 14 Table 1 4 DREQ Line Assignments 1 15 Table 1 5 Technical Specifications 1 16 Table 3 1 POST Beep Co...

Page 7: ...ix ...

Page 8: ...ible PCs and prior training in IBM compatible 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 TroubleshootingGuide for troubleshooting pro cedures and instructions on using the Dell diagnostics to test the computer system WARNING A WARNING indicates the potential for bodily harm and pr...

Page 9: ...s of the basic computer system The Pentium Pro microprocessor contains a built in clock multiplier circuit which increases the microprocessor s internal operating frequency to a multiple of the system clock frequency The microprocessors for each of these systems and their operating frequencies are as follows Dell OptiPlex GXpro 180 systems 180 MHz derived from a system clock frequency of 60 MHz De...

Page 10: ...sis Thermal monitoring Main system memory consisting of 16 to 512 MB of high speed EDO DIMMs that provide ECC functionality when used with the Intel 82440FX PCIset SMART support compliant hard disk drives and SMART support in the system BIOS which warns you at system start up if a hard disk drive has become unreliable Quick tests feature in the diskette based diagnostics for more information about...

Page 11: ...e corruptions the front panel reset button should be used only when the system 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 back of system unit right side left side front of system unit ...

Page 12: ...ector drive cage DC power cable diskette tape drive interface cable hard disk drive bracket power supply system board voltage selection switch AC power receptacle serial port 1 connector serial port 2 connector keyboard connector mouse connector video connector card slot openings NIC connector microphone jack speaker out jack line in jack 3 5 inch drive expansion card cage chassis USB connector 2 ...

Page 13: ...rds and PCI expansion cards The ISA Configuration Utility ICU included with the system provides a means of avoiding resource conflicts that might arise from such an arrangement After all legacy cards have been configured with the ICU the system automati cally assigns any required memory space IRQ lines and DMA channels to any installed Plug and Play ISA expansion cards and PCI expansion cards the ...

Page 14: ...sk drive bracket described in the previous subsection Hard Disk Drive Options For detailed information about the data storage subsystem see Chapter 9 Installing Drives in the User s Guide Audio Controller The system board has a built in 16 bit Creative Labs ViBRA 16 audio controller chip and connectors on the back panel for connecting the system unit to external audio devices speakers microphone T...

Page 15: ...s are present your system has the 10 100 Mbps NIC Chapter 5 Using the Network Interface Controller in the User s Guide pro vides instructions for connecting the system to and configuring it for use on an Ethernet network USB USB capability simplifies connection of peripheral devices such as mice print ers and computer speakers The USB connectors on your computer s back panel provide a single conne...

Page 16: ...Therefore when you measure these voltages the DC power connectors must be connected to their corresponding power input connectors on the system board or drives Pin Assignments for the DC Power Connectors The power supply output voltages can be measured at the back wire side of the connectors without disconnecting them The following illustrations show the wire side of the connectors Table 1 1 DC Vo...

Page 17: ...dicate that all power supply output voltages are within ranges specified in Table 1 1 Figure 1 5 DC Power Connector P1 Figure 1 6 DC Power Connectors P2 P3 P4 P5 and P6 11 1 PWRGOOD 3 orange 12 VDC blue 12 VDC yellow 5 VFP purple common black 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 P1 5 VDC red 5 VDC red 5 VDC red 5 VDC red 5 VDC red 5 VDC red common black common black common black PSON 1 gr...

Page 18: ...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 Figure 1 8 DC Power Cables 1 2 3 4 3 3 VDC blue white common black common black 5 P7 6 3 3 VDC blue white 3 3 VDC blue white common black P7 P6 P5 P4 P3 P2 P1 ...

Page 19: ... controller battery 3 VDC P1 POWER1 5 VDC 5 VDC 12 VDC 12 VDC 5 VDC 5 VDC ISA1 ISA2 PCI1 through PCI5 MICROPROCESSOR 5 VDC 5 VDC 5 VDC 5 VDC PANEL USB KYBD MOUSE DIMM_A DIMM_B DIMM_C DIMM_D main memory sockets P4 FAN RISER internal hard disk drive P2 optional drive P5 P6 5 VFP RTC NVRAM P7 3 3 VDC 2ND_CPU riser board system board optional drive internal hard disk drive POWER2 3 3 VDC processor cor...

Page 20: ...interface connector DSKT front of system unit primary EIDE interface connector IDE1 DIMM sockets 4 microprocessor socket MICROPROCESSOR riser board connector RISER battery socket BATTERY secondary EIDE interface connector IDE2 NIC connector ENET jumpers microprocessor fan connector FAN speaker out jack SPKR OUT line in jack LINE IN microphone jack NIC IN CD ROM connector CD_IN control panel connec...

Page 21: ...ty mode DIMMs can be mixed as follows Any socket can be populated or not There is no requirement that one socket be filled before the other and empty sockets can be left between installed DIMMs Dell recommends populating the sockets in order from A to D Each DIMM socket does not have to contain DIMMs of the same size or speed DIMMs may be installed in any order See DIMMs in Chapter 4 for informati...

Page 22: ...nal speed is 180 MHz or else not installed Table 1 3 Interrupt Assignments IRQ Line Used By Available IRQ0 Generated by system timer IRQ1 Generated by keyboard controller to indicate that keyboard s out put buffer is full IRQ2 Generated internally by interrupt controller to enable IRQ8 through IRQ15 IRQ3 and IRQ4 Generated by super I O controller to indicate that device con nected to corresponding...

Page 23: ... EIDE devices are installed this line is available for other use IRQ15 Generated by device connected to secondary EIDE port to indi cate that device requires service If no device is connected to secondary EIDE port IRQ15 is available for use by expansion card Table 1 4 DREQ Line Assignments DREQ Line Used By Available DREQ0 Available DREQ1 Available DREQ2 Generated by super I O controller to initi...

Page 24: ...h 64 bits Address bus width 32 bits Flash EPROM 2 Mbits Expansion Bus Bus types PCI and ISA Bus speed PCI 30 MHz 180 60 processor 33 MHz 200 66 processor ISA 7 5 MHz 180 60 processor 8 25 MHz 200 66 processor PCI expansion card connectors five two PCI connectors share card slot open ings with the two ISA connectors ISA expansion card connectors two both ISA connectors share card slot openings with...

Page 25: ...inch bays for half height diskette drives tape drives or CD ROM drives Internally accessible bays two hard disk drive bays one 1 6 inch high and one 1 inch high EIDE or SCSI hard disk drive Ports Externally accessible Serial DTE two 9 pin connectors 16550 compatible Parallel one 25 hole connector bidirectional Video one 15 hole connector on add in video card PS 2 style keyboard 6 pin mini DIN PS 2...

Page 26: ...gles microprocessor speeds on 101 key keyboard in MS DOS real mode only Ctrl Alt toggles microprocessor speeds on 102 key keyboard Controls and Indicators Reset control push button Power control push button Power 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 DC power supply Wat...

Page 27: ...rage 40 to 65 C 40 to 149 F Relative humidity 8 to 80 noncondensing Maximum vibration Operating 0 25 G at 3 to 200 Hz for 30 min Storage 0 5 G at 3 to 200 Hz for 30 min Maximum shock Operating half sine wave form 50 G for 2 ms Storage half sine wave form 110 G for 2 ms square wave form 27 g for 15 ms Altitude Operating 16 to 3048 m 50 to 10 000 ft Storage 16 to 10 600 m 50 to 35 000 ft Table 1 5 T...

Page 28: ...1 20 Dell OptiPlex GXpro Systems Service Manual ...

Page 29: ... or indicate 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 Appendix D Maintaining the System in the User s Guide provides infor mation about backing up data 2 Ask the user to try to duplicate the problem by repeating the operations he or she was per...

Page 30: ...rmly 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 connected to the serial ports parallel port and USB are properly attached Each of the serial parallel and USB interface cables must be firmly attached to an appropriate connector on the back of the system unit as well as to the interface connector on...

Page 31: ...diagnostics diskette into drive A Turn on all peripherals and the system unit If the system unit is already on press the reset button or Ctrl Alt Del to reboot the system 2 Check the power supply fan Does the fan run normally Yes Proceed to step 3 No Troubleshoot the system power supply 3 Watch the Num Lock Caps Lock and Scroll Lock indicators on the upper right corner of the keyboard After all th...

Page 32: ...l Inspection Internal Visual Inspection A simple visual inspection of a system unit s interior hardware can often lead to the source of a problem such as a loose expansion card cable connector or mounting screw When you perform the visual inspection refer to System Features in Chapter 1 to locate components in the inspection procedure To perform the internal visual inspection follow these steps 1 ...

Page 33: ...m appear to be resolved Yes No further steps are necessary Terminate the procedure No Proceed to Eliminating Resource Conflicts Running the Diskette Based Diagnostics and to Getting Help found later in this chapter Eliminating Resource Conflicts Devices within the system unit may require dedicated memory spaces interrupt levels or DMA channels all of which must be allocated during installation of ...

Page 34: ...nostics loads and the Diagnostics Menu appears This menu lets you choose the following options or exit to the MS DOS prompt Run Quick Tests Runs selected tests from all test groups to quickly locate a failure or to indicate where further testing is needed to isolate a failure Run All Tests Runs all tests for a thorough test of the system Run Specific Tests Tests a particular area or subsystem Gett...

Page 35: ...em 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 beep codes that may be gener ated during the POST Most beep codes indicate a fatal error that prevents the system from completing the boot routine until the indicated condition is corrected When the system emits a beep code record the code and then find it in T...

Page 36: ... 1 3 1 2 3 1 3 3 1 4 Slave DMA register failure Master DMA register failure Master interrupt mask regis ter failure Slave interrupt mask register failure Defective system board 3 2 4 Keyboard controller test fail ure Faulty keyboard controller defective system board 3 3 4 3 4 1 3 4 2 Screen initialization failure Screen retrace test failure Search for video ROM failure Faulty video subsystem defec...

Page 37: ...lure Hard disk drive read failure Hard disk failure Incompatible Processor CPU0 is B0 step or below Incompatible Processor CPU1 is B0 step or below Incompatible Processors Cache sizes different Keyboard clock line failure Keyboard controller failure Keyboard data line failure Keyboard stuck key failure No timer tick interrupt Shutdown failure Terminator processor card not installed System HALTED T...

Page 38: ...rd disk drive 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 mem ory Read write failure during POST prevents system from using available memory One or more DIMM...

Page 39: ...mmand Operating system cor rupted or not installed properly Hard disk controller failure 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 controller subsystem defective system board or loose power cable Incompatible Processor CPU0 is B0 step or be...

Page 40: ...ck line failure Keyboard fail ure Keyboard data line failure Keyboard stuck key failure System cannot commu nicate with keyboard Keyboard cable connec tor loose or improperly connected defective keyboard or defective keyboard mouse control ler defective system board Keyboard con troller failure Keyboard mouse con troller failed Defective keyboard mouse controller defec tive system board Table 3 2 ...

Page 41: ...g value During memory test value read at address was incorrect Faulty or improperly seated DIMMs or defec tive system board Memory alloca tion error Software in use con flicts with operating system application pro gram or utility Faulty application pro gram or utility Memory tests terminated by keystroke Memory test did not complete POST memory test termi nated by pressing Spacebar Network card is...

Page 42: ...ard disk drive does not have bootable oper ating system installed 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 sec tor no...

Page 43: ...lled or no card installed Time of day clock stopped Backup battery low Defective battery or faulty chip defective sys tem board Time of day not set Time or Date settings in System Setup program incorrect or backup bat tery bad Incorrect Time or Date settings or defective backup battery Timer chip counter 2 failed Timer circuit on system board malfunctioning Defective system board Unexpected interr...

Page 44: ... detected that one or both micro processors have overheated One or both micro processors are too hot 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 Message Definition Probable Causes ...

Page 45: ...removed the system unit 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 screwdriver Wide flat blade screwdriver Number 1 and number 2 Phillips head screwdrivers Chip removal tool 1 4...

Page 46: ...er perform the following steps in the sequence indicated 1 Turn off the system unit and any attached peripherals 2 Disconnect the system unit and any attached peripherals from their power sources to reduce the potential for personal injury or shock 3 Wear a wrist grounding strap and clip it to an unpainted metal sur face such as the system power supply s fan guard on the chassis If a wrist groundi...

Page 47: ...n 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 The screw is captured and separated from the floor stand 3 Pull the floor stand away from the system unit Disengage the three orientation nubs that position and help hold the floor stand to the system unit floor stand screw ...

Page 48: ...two securing buttons until the cover is free to swing up 3 Lift the cover from the back pivoting it toward the front of the system unit Four plastic hooks on the inside of the front part of the cover secure it to the chassis 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 system unit securing button fr...

Page 49: ... 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 or the reset button use a small screw driver and push in on the two or three plastic clips that hold the button to the system unit cover When these clips are released the button comes free from the front panel of the cover power button reset butto...

Page 50: ... back end of the eject button mechanism Press the mechanism toward the front panel to snap the plastic insert out of its opening see Figure 4 4 To replace a front panel insert for a 5 25 inch bay position the insert over the drive bay opening Place the panel over the retaining posts and then press hard to get the ring tabs over the posts If necessary use a 1 4 inch nutdriver to help push the ring ...

Page 51: ...ove the speaker connector from the indicator card 3 Disconnect the indicator cable from the system board Slide the indicator cable through the cable slot in the bottom of the chassis 4 Remove the mounting screw holding the indicator card to the chassis 5 Rotate the card to the left and lift it out of the hooks holding it to the chassis speaker connector indicator card indicator card cable screw ch...

Page 52: ...o remove the speaker follow these steps 1 Remove the hard disk drive bracket See Drives found later in this chapter 2 Remove the speaker connector from the indicator card 3 Lift the speaker out of the retaining slots on the front of the chassis speaker connector speaker retaining slot ...

Page 53: ...s figure when you perform any of the procedures in the following subsections Figure 4 8 Drive Hardware diskette tape drive interface cable DC power cable DSKT connector system power supply two bay drive cage hard disk drive bracket IDE1 connector IDE2 connector 3 5 inch diskette drive CD ROM tape drive interface cable power input connectors ...

Page 54: ...racket retaining screw 3 Release the bracket catch from the chassis Rotate the drive bracket to the right and lift the bracket from the top of the drive bay 4 Remove the two mounting screws from each side of the drive and remove the drive from the bracket To replace a 3 5 inch diskette drive locate the two hooks on the right side of the bracket that hold the drive in position Engage those two hook...

Page 55: ...inch drive from the middle or lower drive bay follow these steps 1 Disconnect the DC power cable and the interface cable from the back of the drive 2 Press out on the two retaining tabs on the sides of the drive bay slide the drive forward and remove it from the drive bay retaining tab 2 ...

Page 56: ...erface cable s from the back of the drive s 2 Remove the screw that secures the hard disk drive bracket to the chassis 3 Grasp the handle on the front of the bracket and rotate the bracket back until it swings free from the chassis Disengage the bracket from the two hooks on the bottom of the chassis support 4 Lift the hard disk drive bracket out of the system unit handle screw hook 2 hard disk dr...

Page 57: ...llow these steps 1 Remove the hard disk drive bracket from the system unit See the preceding procedure 2 Remove the four screws that secure the hard disk drive s to the bracket 3 Slide the drive s out of the hard disk drive bracket hard disk drive drive bracket mounting screw 4 hard disk drive bracket ...

Page 58: ... 3 Free the system power supply from the securing tab labeled RELEASE and rotate it to the right until it stops Press the securing tab to the left to disengage the power supply 4 Free the power cable bundle from the hook on the bottom of the chassis 5 Lift the front end of the system power supply up and move it to the right to disengage the power supply from the slot in the chassis 6 Lift the syst...

Page 59: ... Supply found earlier in this chapter 2 Sqeeze the latch and pull out the fan power cable from the micro processor fan connector located on the system board under the power supply 3 Gently pull the plastic lock and push down on the fan to disengage the four latching tabs holding the fan to the back of the chassis 4 Remove the fan Pull the fan forward and out of the system unit power cable micropro...

Page 60: ...MICROPROCESSOR battery socket BATTERY secondary EIDE interface connector IDE2 NIC connector ENET jumpers microprocessor fan connector FAN CD ROM connector CD_IN control panel connector PANEL main power input connector POWER1 3 3 V power input connectors POWER2 riser board connector RISER speaker out jack SPKR OUT line in jack LINE IN microphone jack NIC IN secondary microprocessor card or terminat...

Page 61: ...4 16 Expansion Card Cage Removal To remove an expansion card cage follow these steps 1 Disconnect any cables from the expansion cards and the riser board 2 Rotate the lever toward the back of the system unit until it stops in the upright position 3 Lift the expansion card cage up and away from the system unit To replace an expansion card cage keep the cage flush against the chassis to insure that ...

Page 62: ...se steps 1 Remove the expansion card cage See the preceding procedure 2 Remove the retaining screw from the card mounting bracket 3 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 ...

Page 63: ...ceding two procedures 2 On a flat work surface turn the expansion card cage over with the riser board facing you 3 Remove the riser board retaining screws 4 Slide the riser board down approximately one half inch to release the board from the two slots on the expansion card cage 5 Lift the riser board away from the expansion card cage riser board expansion card cage slot 2 retaining screw 2 ...

Page 64: ... socket Then lift the DIMM away from the socket Figure 4 20 DIMM Installation To replace a DIMM press outward on the securing clips at each end of the socket until they snap open Orient the DIMM to the socket and press the DIMM straight down into the socket slot until the securing clips snap into place around the ends of the DIMM 1 securing clip 2 2 DIMM securing clip 2 1 2 DIMM ...

Page 65: ...ever is in its fully vertical position to allow the micro processor pins to easily slip into the socket When the microprocessor heat sink assembly is in place rotate the microprocessor release lever to its horizontal position Hook the microprocessor securing clip over the socket tab nearest the front of the system board and then snap it over the tab on the back of the socket NOTE Pin 1 on the micr...

Page 66: ...processor heat sink assembly you need to place the thermal interface pad that comes with the replacement microprocessor between the microprocessor and the heat sink before reinstalling the securing clip heat sink securing clip thermal interface pad microprocessor pin 1 corner of socket microprocessor socket front tab ...

Page 67: ... add in card Terminator Card Figure 4 23 Terminator Card Removal To remove a terminator card follow these steps 1 Grasp the small white handle installed on the top of the card If a handle is not installed use the handle that is in the upgrade kit with the secondary microprocessor Fit the handle over the top of the card so that the nubs of the handle fit through two holes in the top of the card 2 P...

Page 68: ...oth hands 2 Pull up until the card is freed from the connector To reinstall the card with the metal mounting bracket facing the left side of the chassis fit the edge of the bracket into the card guide attached to the back wall of the chassis Make sure that the bracket edge tab is below the bottom of the guide card guide metal mounting bracket mounting bracket edge tab mounting bracket edge ...

Page 69: ... Orient the new battery with the facing up Insert the battery into its socket and snap it into place Rotate the power supply back into position 2 Start the System Setup program and reset the Date and Time categories Also compare the system configuration information with the copy of the system configuration settings you made in step 1 of the removal procedure Restore any system configuration inform...

Page 70: ... bays toward the front of the system unit but leave them cabled 5 Remove the system board as follows a Remove the screw that secures the system board to the bottom of the system unit b Slide the system board toward the front of the system unit approxi mately one half inch to release the board from the seven slots in the floor of the system unit c Lift the system board out of the system unit If you...

Page 71: ...n on or reboot the system 2 Press Ctrl Alt Enter immediately after the monitor displays the message Press CTRL ALT ENTER for System Setup If you wait too long the operating system begins to load into memory the message disappears and you cannot enter the System Setup program Letthe system complete the load operation then shut down the system and try again NOTE To ensure an orderly system shutdown ...

Page 72: ...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 the left or right arrow key BIOS Version XXX Dell Computer Corporation Page 2 of 2 This category ...

Page 73: ... hard disk drives the system pro vides an automatic drive type detect feature To use this feature highlight the appropriate drive category and type a for automatic If none of the supported drive types match the parameters of the new drive enter the parame ters directly To do so highlight the appropriate drive category Drive 0 and Drive 1 and type u to display User1 Press Tab to highlight each of t...

Page 74: ...es processor speed at which system boots the processor s rated speed or a slower compatibility speed Num Lock Determines whether keyboard s Num Lock mode is activated Keyboard Errors Enables or disables reporting of keyboard errors during POST System Password Displays current status of system s password security feature Also used to assign and verify a new password Password Status Provides an extr...

Page 75: ...ller NIC Enables On or disables Off the network interface controller Mouse Enables or disables the built in PS 2 compatible mouse port Serial Port 1 Serial Port 2 Configures system s built in serial ports Parallel Port Configures system s built in parallel port The port s I O address may be set to 278H 3BCH or 378H Otherwise the port may be dis abled Parallel Modes Controls whether system s built ...

Page 76: ...Memory Displays entire amount of installed memory detected in system except for memory on EMS expansion cards If EDO DIMMs are installed EDO is dis played next to this category Service Tag Displays system s five character service tag number Asset Tag Displays the asset tag number up to ten charac ters if one is assigned Table A 1 System Setup Categories continued Category Function ...

Page 77: ...opening 1 4 4 18 CD ROM connector 1 12 drives 4 11 chassis 1 4 computer technical specifications 1 16 configuration jumpers location 1 12 4 16 connectors location on back of system unit 1 4 location on system board 1 12 4 16 cover system unit removal 4 4 D DC power 1 4 1 8 1 10 DC power cables 1 4 DC power connectors 1 8 DC power distribution diagram 1 11 diagnostics 2 5 DIMMs about 1 13 location ...

Page 78: ... inspection 2 2 F fan connector 1 12 4 16 fatal error messages 3 3 floor stand removal 4 3 front panel 1 4 front panel inserts removal 4 6 H hard disk drive access indicator 1 4 hard disk drives about 1 6 bracket 1 4 4 12 connectors 1 12 4 9 4 16 location 1 4 removal 4 13 help getting 2 6 I IDE1 connector 1 12 4 9 4 16 IDE2 connector 1 12 4 9 4 16 indicator card removal 4 7 indicators 1 4 initial ...

Page 79: ...on cards 1 5 1 12 4 16 4 17 4 18 PCI video card 1 6 Plug and Play expansion cards 1 5 POST beep codes 3 1 power button location 1 4 removal 4 5 power distribution diagram 1 11 power indicator 1 4 power input connectors 1 12 4 16 power supply 1 8 cable configuration 1 10 DC voltage ranges 1 8 illustrated 1 10 removal 4 14 precautions 4 2 R reset button location 1 4 removal 4 5 resource conflicts el...

Page 80: ...tup program A 1 system specifications 1 16 system unit cover 4 4 floor stand removal 4 3 orientation 1 3 T tape drives interface cable 1 4 interface connector 1 12 4 16 removal 4 10 4 11 technical specifications 1 16 terminator card removal 4 23 thermal monitoring 1 7 troubleshooting boot routine interpreting 2 3 external visual inspection 2 2 initial procedures 2 1 initial user contact 2 1 intern...

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