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Dell Dimension XPS R Series Service Manual
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Dell Dimension XPS R Series Service Manual

Dell Dimension XPS R Series Service Manual

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Summary of Contents for Dell Dimension XPS R Series

  • Page 1 ® Š...
  • Page 2 Standards Association. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
  • Page 3 Running the Dell Diagnostics........2-6...
  • Page 4 Computer Cover ..........4-2 Bezel .
  • Page 5 Figure 1-1. Computer Orientation ......1-3 Figure 1-2. Internal View of Desktop Computer ....1-4 Figure 1-3.
  • Page 6 Figure A-4. IDE Configuration Submenu ......A-5 Figure A-5. Primary IDE Master Submenu ..... . . A-7 Figure A-6.
  • Page 8 A prerequisite for using this manual to service Dell computer systems is a basic ® knowledge of IBM -compatible 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 Troubleshooting Guide for troubleshooting procedures and instructions on using the Dell Diagnostics to test the computer system.
  • Page 9 The Dell Dimension XPS R xxx systems are available in either a desktop or a mini tower configuration. Both configurations use the same system board and base chassis. The only difference, other than physical mounting, is the number of externally accessible 3.5-inch drive bays.
  • Page 10 In addition to the standard features found in a traditional personal computer, the Dell Dimension XPS R xxx systems include the following: An Intel Pentium II microprocessor with MMX technology, that is specifi- cally designed to handle complex multimedia and communications software.
  • Page 11 When following the procedures in this manual, assume that the locations or directions relative to the computer are as shown in Figure 1-1. NOTE: Some service procedures recommend laying the mini tower computer on its right side to improve service access, but the descriptions in this manual continue to use the directions shown in Figure 1-1 for the mini tower computer.
  • Page 12 (typical) power indicator chassis power button hard-disk drive access indicator card-guide assembly bezel reset button (contains primary hard-disk drive) )LJXUH  ,QWHUQDO 9LHZ RI 'HVNWRS &RPSXWHU Dell Dimension XPS R xxx Systems Service Manual...
  • Page 13 power supply chassis cooling fan system board DC power cables filler brackets diskette-drive interface cable secondary hard-disk drive bracket drive cage drive bays (typical) chassis power button hard-disk drive bezel access indicator card guide assembly reset button (contains primary hard-disk drive) )LJXUH  ,QWHUQDO 9LHZ RI 0LQL 7RZHU &RPSXWHU voltage selection parallel port...
  • Page 14 For detailed information about the data storage sub- system, see Chapter 3, “Installing Drives,” in the Dell Dimension XPS R xxx Reference and Troubleshooting Guide .
  • Page 15 The 200-W power supply can operate from an AC power source of 115 VAC at 60 Hz or 230 VAC at 50 Hz. The power supply provides the DC operating volt- ages and currents listed in Table 1-1. NOTE: The power supply produces DC voltages only under its loaded condition.
  • Page 16 )LJXUH  '& 3RZHU &DEOHV Dell Dimension XPS R xxx Systems Service Manual...
  • Page 17 5.25-inch drive +3.3 5.25-inch PWRGOOD drive +12 VDC power +5 VDC supply 3.5-inch drives –5 VDC (second drive +5 VDC uses Y-cable) +5 VSB 3.5-inch PSON# diskette drive primary hard-disk drive power switch secondary hard-disk drive (uses Y-cable) POWER battery PSON# +5 VSB connectors...
  • Page 18 This action connects the power supply’s PSON# input to ground, thereby switching the power supply to its full-on condition. )LJXUH  '& 3RZHU &RQQHFWRU 3 1-10 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 19 P2, P3, P5, P6 +5 VDC (red) +5 VDC (red) common (black) common (black) common (black) common (black) +12 VDC (yellow) +12 VDC (yellow) )LJXUH  '& 3RZHU &RQQHFWRUV 3 3 3 3 DQG 3 common (black) +3.3 VDC (orange) common (black) +3.3 VDC (orange) common (black)
  • Page 20 (PCI1, PCI2, PCI3, and PCI4) configuration ISA expansion-card jumper (J8A1) connectors (ISA1 and ISA2) expansion header (PC/PCI) speaker (U8A1) * For systems with integrated sound )LJXUH  6\VWHP %RDUG )HDWXUHV 1-12 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 21 Memory can be increased to a maximum of 384 megabytes (MB) by installing combinations of 3.3-volt (V) 32-, 64-, and 128-MB dual in-line memory modules (DIMMs) in the three DIMM sockets on the system board. Only 100-megahertz (MHz) DIMMs are supported. NOTE: The system is designed for peak performance with specific DIMMs that are validated through rigorous testing.
  • Page 22 See Figure 1-11 and Table 1-2 for jumper settings and descriptions. configuration jumper (J8A1) jumpered unjumpered )LJXUH  6\VWHP %RDUG -XPSHU -$ 1-14 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 23 7DEOH  6\VWHP %RDUG -XPSHU 'HVFULSWLRQV -XPSHU 6HWWLQJV 'HVFULSWLRQ Jumper on pins 1-2 In Normal mode, system setup settings and (Normal mode) installed password(s) are retained when the system starts up. Normal mode attempts automatic recovery if BIOS detects any main blocks corrupted.
  • Page 24 The PCI IRQ line is assigned to an available IRQ line after all ISA expansion cards have been configured. If an ISA expansion card is configured for IRQ11, the PCI IRQ is as- signed to another available IRQ line. 1-16 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 25 7DEOH  '0$ &KDQQHO $VVLJQPHQWV '5(4 /LQH 8VHG %\$YDLODEOH DREQ0 Default audio DMA channel assignment DREQ1 Default audio DMA channel assignment DREQ2 Generated by I/O controller to enable DMA cycle for attached diskette drive DREQ3 Generated by I/O controller to enable DMA cycle for the parallel port when in EPP mode DREQ4 Reserved —...
  • Page 26 ....120 pins PCI expansion-card connector data width (maximum)... . . 32 bits 1-18 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 27 7DEOH  7HFKQLFDO 6SHFLILFDWLRQV FRQWLQXHG ([SDQVLRQ %XV FRQWLQXHG ISA expansion-card connectors ....two (one shares a card-slot opening with a PCI connector) ISA expansion-card connector size .
  • Page 28 180 to 265 V at 50 Hz Backup battery ....3-V CR2032 coin cell Available in integrated audio systems only. 1-20 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 29 7DEOH  7HFKQLFDO 6SHFLILFDWLRQV FRQWLQXHG 3K\VLFDO Mini tower chassis: Height ....43.69 cm (17 .2 inches) Width ....20.32 cm (8 inches) Depth .
  • Page 30 1-22 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 31 A brief explanation of how to load and start the diagnostics is pro- vided in “Running the Dell Diagnostics” at the end of this chapter. Dell recommends that you perform these procedures in the order they are pre- sented in this chapter.
  • Page 32 For proper settings of the monitor controls, see the documentation for the monitor. ,QVSHFW WKH NH\ERDUG WR HQVXUH WKDW QR NH\V DUH VWLFNLQJ If one or more keys are sticking, it may be necessary to replace the keyboard. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 33 NOTES: To prevent possible damage to the original diagnostics diskette, always use a backup copy of the diagnostics diskette when servicing a user’s computer. Dell recommends that users make copies of the Dell Diagnostics Diskette . For instructions, see “Before You Start Testing” in Chapter 7 of the Reference and Troubleshooting Guide .
  • Page 34 Table 3-2. 2EVHUYH WKH PRQLWRU VFUHHQ IRU WKH 'LDJQRVWLFV 0HQX Does the Diagnostics Menu appear? Yes. See “Running the Dell Diagnostics” found later in this chapter. No. Proceed to step 6. ,QVHUW DQRWKHU FRS\ RI WKH GLDJQRVWLFV GLVNHWWH LQWR WKH GLVNHWWH...
  • Page 35 mounting screw. When you perform the visual inspection, refer to “System Features” in Chapter 1 to locate system components. To perform the internal visual inspection, follow these steps:  7XUQ RII WKH FRPSXWHU LQFOXGLQJ DQ\ DWWDFKHG SHULSKHUDOV DQG GLVFRQQHFW DOO WKH $& SRZHU FDEOHV IURP WKHLU SRZHU VRXUFHV Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the security cable ring on the back of the chassis.
  • Page 36 To start the diagnostics, turn off the computer, insert a diagnostics diskette into drive A, and then turn on the computer. Starting the diagnostics causes the Dell logo to appear on the 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.
  • Page 37 If none of the troubleshooting procedures in this chapter or the tests in the Dell Diagnostics reveal the source of the problem or lead to the proper trouble- shooting steps for determining the source of the problem, call Dell for technical assistance.
  • Page 38 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 39 For instructions on starting and using the diskette-based diagnostics, see “Running the Dell Diagnostics” in Chapter 2. If the monitor cannot display error messages during the POST, the computer may emit a series of beeps that identifies the problem or that can help identify a faulty component or assembly.
  • Page 40 Ensure that drive is Diskette drive A failed BIOS POST. installed correctly and error defined correctly in system setup program. System is starting sys- No action necessary. Entering Setup tem setup program. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 41 7DEOH  6\VWHP 0HVVDJHV FRQWLQXHG 0HVVDJH 3UREDEOH &DXVHV &RUUHFWLYH $FWLRQ Extended memory not Enter system setup Extended RAM working correctly or not program and restore Failed at off- configured correctly at original value(s). set: nnnn offset nnnn . nnnn is a map of the Enter system setup Failing Bits: bits at the RAM address...
  • Page 42 Maintenance mode and start up system to return all system setup settings to defaults. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 43 7DEOH  6\VWHP 0HVVDJHV FRQWLQXHG 0HVVDJH 3UREDEOH &DXVHV &RUUHFWLYH $FWLRQ Shadow RAM failed at Enter system setup Shadow RAM failed offset nnnn in 64-KB program and restore at offset: nnnn block in which error was original value(s). detected. CMOS clock battery Replace battery;...
  • Page 44 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 45 This chapter provides procedures for removing and replacing components, assemblies, and subassemblies of the computer. Unless otherwise noted, each procedure assumes the following: The computer cover has already been removed. A part can be replaced by performing the removal procedure in reverse order.
  • Page 46 \RXU WKXPE ZKLOH XVLQJ \RXU RWKHU KDQG WR SXOO XS WKH EDFN HGJH RI WKH FRPSXWHU QHDU WKH ODWFK XQWLO WKH FRYHU LV UHOHDVHG Brace the chassis to prevent it from moving while you push inward on the cover release latch. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 47  5HSHDW VWHS  IRU WKH RWKHU FRYHU UHOHDVH ODWFK  6OLGH WKH FRYHU DSSUR[LPDWHO\ RQH LQFK WRZDUG WKH EDFN RI WKH FRPSXWHU 7KHQ OLIW WKH FRYHU RII WKH FRPSXWHU bezel tabs (3) bezel tabs (3) )LJXUH  %H]HO 5HPRYDO  :LWK WKH FRYHU UHPRYHG SUHVV LQ WKH WDEV DORQJ WKH WRS DQG VLGH RI WKH EH]HO VHH )LJXUH    6ZLQJ WKH EH]HO DZD\ IURP WKH FKDVVLV GLVHQJDJH WKH KRRNV DQG...
  • Page 48 For mini tower computers, you must remove the upper insert to remove the lower insert. tabs (2) release tab )LJXUH  ,QFK ,QVHUW 5HPRYDO Dell Dimension XPS R xxx Systems Service Manual...
  • Page 49 drive cage screw drive cage slots (6) tabs (6) )LJXUH  'ULYH &DJH 5HPRYDO NOTE: The drive cage is the same in both the desktop and mini tower comput- ers. The drive cage in the mini tower computer is mounted 90 degrees clockwise from the one shown in Figure 4-4.
  • Page 50 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 51 5HPRYH WKH WKUHH GULYHPRXQWLQJ VFUHZV DQG VOLGH WKH GULYH RXW RI WKH ED\ DV VKRZQ LQ )LJXUH  drive-mounting screws (3) )LJXUH  ,QFK 'ULYH 5HPRYDO When you replace a drive, be sure to set the jumpers on the replacement drive the same as the jumpers on the drive you removed.
  • Page 52 When you replace a drive, be sure to set the jumpers on the replacement drive the same as the jumpers on the drive you removed. For additional information about jumper settings on EIDE drives, see “EIDE Subsystem” in Chapter 1. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 53 drive-mounting screws (3) )LJXUH  /RZHU ,QFK 'ULYH 5HPRYDO 0LQL 7RZHU &RPSXWHU 2QO\ The lower 3.5-inch drive attaches to the left side and bottom of the drive cage. To remove a drive from the lower 3.5-inch drive bay in the mini tower com- puter, follow these steps:  5HPRYH WKH EH]HO  5HPRYH WKH GULYH FDJH DQG GULYHV DV DQ DVVHPEO\...
  • Page 54  3UHVV WKH WZR GULYHUHOHDVH WDEV DQG VOLGH WKH GULYH RXW RI WKH ED\ VHH )LJXUH   Transfer the drive-release tabs to the replacement diskette drive before install- ing the new drive. 4-10 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 55 primary hard-disk drive card guide assembly drive-assembly mounting screws (2) )LJXUH  3ULPDU\ +DUG'LVN 'ULYH 5HPRYDO  5HPRYH WKH EH]HO  5HPRYH WKH WZR GULYHDVVHPEO\ PRXQWLQJ VFUHZV VHH )LJXUH    /LIW WKH SULPDU\ KDUGGLVN GULYH RXW RI WKH FDUG JXLGH DVVHPEO\  'LVFRQQHFW WKH '&...
  • Page 56  7R UHPRYH WKH VHFRQGDU\ KDUGGLVN GULYH IURP WKH GULYH EUDFNHW UHPRYH WKH VFUHZ VHFXULQJ WKH GULYH WR WKH EUDFNHW DQG URWDWH WKH GULYH RXW RI WKH EUDFNHW DV VKRZQ LQ )LJXUH  4-12 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 57 screw secondary hard-disk drive drive bracket tabs (2) )LJXUH  6HFRQGDU\ +DUG'LVN 'ULYH 5HPRYDO When you replace a hard-disk drive, be sure to set the jumpers on the replace- ment drive the same as the jumpers on the drive you removed. For additional information about jumper settings on EIDE drives, see “EIDE Subsystem”...
  • Page 58  'LVFRQQHFW WKH '& SRZHU FDEOHV IURP DOO WKH GULYHV  5HPRYH WKH WZR SRZHUVXSSO\ PRXQWLQJ VFUHZV IURP WKH EDFN RI WKH FKDVVLV VHH )LJXUH    /LIW WKH SRZHU VXSSO\ RXW RI WKH FKDVVLV 4-14 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 59 chassis cooling back of chassis fan assembly J8M1 connector release buttons (2) )LJXUH  &KDVVLV &RROLQJ )DQ $VVHPEO\ 5HPRYDO  'LVFRQQHFW WKH FKDVVLV FRROLQJ IDQ FDEOH IURP WKH -0 FRQQHFWRU RQ WKH V\VWHP ERDUG VHH )LJXUH    3UHVV WKH WZR UHOHDVH EXWWRQV RQ WKH EDFN RI WKH FKDVVLV DQG OLIW WKH FKDVVLV FRROLQJ IDQ DVVHPEO\ RXW RI WKH FKDVVLV Maintain upward pressure on the fan assembly while you press the two release buttons.
  • Page 60 WR WKH IURQW SDQHO DQG SUHVV RQ WKH WDE DW WKH EDFN RI WKH FDUG JXLGH DVVHPEO\  /LIW WKH FDUG JXLGH DVVHPEO\ LQFOXGLQJ WKH FRQWURO SDQHO FDEOH RXW RI WKH FKDVVLV 4-16 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 61 control panel board card guide assembly mounting tab )LJXUH  &RQWURO3DQHO %RDUG 5HPRYDO  5HPRYH WKH IURQW EH]HO  5HPRYH WKH FDUG JXLGH DVVHPEO\  3UHVV WKH PRXQWLQJ WDE WR UHOHDVH WKH FRQWURO SDQHO ERDUG IURP WKH FDUG JXLGH DVVHPEO\ VHH )LJXUH   DQG UHPRYH WKH FRQ WURO SDQHO ERDUG Removing and Replacing Parts 4-17...
  • Page 62 (B7C1) PCI2, PCI3, and PCI4) ISA expansion-card configuration connectors (ISA1 and ISA2) jumper (J8A1) * For systems with integrated sound speaker (U8A1) expansion header (PC/PCI) )LJXUH  6\VWHP %RDUG &RPSRQHQWV 4-18 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 63 retaining screw card-mounting bracket expansion card card-edge connector card guide expansion-card connector )LJXUH  ([SDQVLRQ &DUG 5HPRYDO  'LVFRQQHFW DQ\ FDEOHV IURP WKH H[SDQVLRQ FDUG Note the location of each connector and the orientation of any cables attached to the expansion card before disconnecting these cables.  5HPRYH WKH UHWDLQLQJ VFUHZ IURP WKH FDUGPRXQWLQJ EUDFNHW VHH )LJXUH    *UDVS WKH H[SDQVLRQ FDUG E\ LWV FRUQHUV DQG FDUHIXOO\ SXOO LW RXW...
  • Page 64 (2) )LJXUH  ',00 5HSODFHPHQW If you have inserted the DIMM correctly, the securing tabs at each end of the socket snap into the cutouts at each end of the DIMM. 4-20 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 65 SEC cartridge release latches (2) heat sink retainer bar slot guide bracket assembly SEC cartridge heat sink support retainer bar )LJXUH  6(& &DUWULGJH DQG +HDW 6LQN 5HPRYDO To remove the shrouded SEC cartridge and heat sink, follow these steps. :$51,1*6 7KH 6(&...
  • Page 66 KHDW VLQN SRVLWLRQHG WRZDUG WKH IURQW RI WKH FRPSXWHU DQG ILUPO\ VHDW WKH DVVHPEO\ Up to 25 pounds of force are required to seat the SEC cartridge. 6OLGH WKH UHWDLQHU EDU EDFN LQWR SRVLWLRQ RQ WKH KHDW VLQN VXSSRUW 4-22 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 67 battery battery socket (B7C1) )LJXUH  %DWWHU\ 5HPRYDO :$51,1* 7KHUH LV D GDQJHU RI D QHZ EDWWHU\ H[SORGLQJ LI LW LV LQFRUUHFWO\ LQVWDOOHG 5HSODFH WKH EDWWHU\ RQO\ ZLWK WKH VDPH RU HTXLYDOHQW W\SH UHFRPPHQGHG E\ WKH PDQXIDF WXUHU 'LVFDUG XVHG EDWWHULHV DFFRUGLQJ WR WKH PDQXIDFWXUHU·V LQVWUXFWLRQV The computer uses a 3-V CR2032 coin-cell battery.
  • Page 68 DIMM modules must be removed from the old system board and transferred to the replacement system board. Dell recommends removing these components from the system board while it is still securely mounted in the computer.
  • Page 69 5HPRYH WKH 6(& FDUWULGJH DQG KHDW VLQN DVVHPEO\ 5HPRYH WKH JXLGH EUDFNHW DVVHPEO\ IRU WKH 6(& FDUWULGJH guide bracket assembly captive nuts (4) threaded posts (4) SEC cartridge connector )LJXUH  *XLGH%UDFNHW $VVHPEO\ 5HPRYDO Using a #2 Phillips screwdriver, loosen each of the four nuts (see Figure 4-24) securing the guide bracket assembly to the system board.
  • Page 70  &DUHIXOO\ OLIW WKH V\VWHP ERDUG DZD\ IURP WKH ,2 JDVNHW VHH )LJXUH   DQG UHPRYH WKH ERDUG IURP WKH FRPSXWHU system-board mounting screw screws (3) system-board mounting bracket configuration jumper J8A1 )LJXUH  6\VWHP %RDUG 0RXQWLQJV 4-26 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 71  5HPRYH WKH PRXQWLQJ EUDFNHW IURP WKH EDFN RI WKH V\VWHP ERDUG VHH )LJXUH   system board system-board mounting bracket )LJXUH  %UDFNHW 5HPRYDO To install a replacement system board, install the guide bracket assembly for the SEC cartridge. The assembly is keyed for correct insertion (see Figure 4-24).
  • Page 72 V\VWHP VHWXS SURJUDP DQG UHVHW WKH V\VWHP FRQILJXUDWLRQ LQIRUPDWLRQ To check the installation and make sure the system functions properly, run the system diagnostics as described in Chapter 7 , “Running the Dell Diag- nostics,” in the Reference and Troubleshooting Guide. 4-28...
  • Page 73 This appendix describes the System Setup program, which is used to change the system configuration information stored in CMOS and NVRAM on the sys- tem board. To enter the system setup program, follow these steps:  7XUQ RQ RU UHERRW WKH V\VWHP  :KHQ SURPSWHG WR  SUHVV WKH Press <DEL>...
  • Page 74 L2 cache. If set to Disabled, error checking is not performed. System Time Resets the time on the system’s internal clock. System Date Resets the date on the system’s internal calendar. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 75 )LJXUH $ $GYDQFHG 6FUHHQ 0HQX 7DEOH $ $GYDQFHG 6FUHHQ 0HQX 2SWLRQV 2SWLRQ )XQFWLRQ Plug & Play O/S Determines whether the system is configured to run Plug and Play feature from the operating system or from the system BIOS. This option should remain set to No, to specify that the BIOS handles all Plug and Play operation.
  • Page 76 (default), Enabled, or Disabled. If this option is set to Enabled, you can set the following additional options: Base I/O Available I/O addresses are COM1, COM2, COM3, and COM4. Address Interrupt Available interrupts are IRQ3 and IRQ4. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 77 7DEOH $ 3HULSKHUDO &RQILJXUDWLRQ 6XEPHQX 2SWLRQV FRQWLQXHG 2SWLRQ )XQFWLRQ Parallel Port Configures the parallel port. Set this option to Auto (default), Enabled, or Disabled. Depending on the port setting, you can set the following additional options: Mode If port is set to Auto or Enabled, available modes are Out- put Only, Bi-Directional, ECP , and EPP .
  • Page 78 Identifies the second drive attached to the secondary Slave EIDE interface, usually a CD-ROM or tape drive. The format of this submenu is the same as the one described in the next subsection, “Primary IDE Mas- ter Submenu.” Dell Dimension XPS R xxx Systems Service Manual...
  • Page 79 LBA Mode Set to Enable (default) unless directed to change it by Control a Dell technical support representative. Transfer Mode Selects method of moving data to and from the IDE drive. Options include Standard and the PIO modes 1, 2, 3, and 4, which can improve the performance of a hard-disk drive.
  • Page 80 Diskette Write Protects a diskette from being written to when set Protect to Enabled. When this option is set to Disabled, the diskette is not protected unless the write-protect tab is in place. Dell Dimension XPS R xxx Systems Service Manual...
  • Page 81 )LJXUH $ '0, (YHQW /RJJLQJ 6XEPHQX 7DEOH $ '0, (YHQW /RJJLQJ 6XEPHQX 2SWLRQV 2SWLRQ )XQFWLRQ Event Log Displays information about the event log. Capacity Event Log Validity Displays Invalid if an error was detected in the event log. View DMI Event Click Enter to view the DMI event log.
  • Page 82 PCI expan- sion card. AGP Aperture Size Sets the aperture size for the AGP video controller to 64 MB (default) or 256 MB. A-10 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 83 )LJXUH $ 5HVRXUFH &RQILJXUDWLRQ 6XEPHQX 7DEOH $ 5HVRXUFH &RQILJXUDWLRQ 6XEPHQX 2SWLRQV 2SWLRQ )XQFWLRQ xxxx – xxxx Reserves the specified UMB (for example, C800–CBFF) for use by legacy ISA devices. Options are Available (default) and Reserved. Memory Hole Settings are Disabled (default), Conventional, and Extended.
  • Page 84 If this option is set to Enabled and a user password is set, the system boots normally, but the keyboard and the mouse are locked until the user password is entered. The default setting is Disabled. A-12 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 85 )LJXUH $ 3RZHU 6FUHHQ 0HQX 7DEOH $ 3RZHU 6FUHHQ 0HQX 2SWLRQV 2SWLRQ )XQFWLRQ Power Enables or disables Inactivity Timer and Hard Drive Management options. Inactivity Timer Determines the period of system inactivity (1, 2, 4, 6, 8, 12, and 16 seconds) before certain system components enter a low-power mode.
  • Page 86 (POST beep). QuickBoot When set to Enabled, this option shortens POST by elimi- Mode nating some tests. If set to Disabled (default), all POST tests occur. A-14 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 87 7DEOH $ %RRW 6FUHHQ 0HQX 2SWLRQV FRQWLQXHG 2SWLRQ )XQFWLRQ After Power Determines what state the system enters when AC Failure power is restored after a power loss. Settings are: Last State — System returns to the state it was in when power was lost.
  • Page 88 If no operating sys- tem is found on the boot device, the system attempts to boot from each successive device until an operating system is found. Bootable Add-In Same as preceding item. Card A-16 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 89 )LJXUH $ 5HPRYDEOH 'HYLFHV 6XEPHQX 7DEOH $ 5HPRYDEOH 'HYLFHV 6XEPHQX 2SWLRQV 2SWLRQ )XQFWLRQ Legacy Floppy Operating system assigns drive letters to removable Drives devices in the order listed on the Removable Devices menu. Reorder the list to change the drive designa- tions: Use the up- or down-arrow key to highlight a device, and press the plus (+) or minus (–) key to move the item up or down the list.
  • Page 90 Saves any changes you have made, but does not exit Defaults the system setup program. Discard Changes Discards any changes you have made, reverts all options to their last saved settings, but does not exit the system setup program. A-18 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 91 3.5-inch insert removal, 4-4 cache memory, 1-18 card-guide assembly removal, 4-16 chassis cooling fan assembly removal, 4-15 computer AC power back-panel features, 1-5 about, 1-7 features list, 1-2 voltage selection switch, 1-5 front-panel features, 1-4, 1-5 adapter card, 1-6, 4-19 orientation, 1-3 advanced expansion subsystem, 1-6 overview, 1-1...
  • Page 92 4-19 ISA expansion-card slots, 1-6 expansion-card guide, 4-16 expansion-card slots, 1-6 external visual inspection, 2-2 jumper, 1-14 fan removal, 4-15 key to enter System Setup program, features list, 1-2 front-bezel removal, 4-3 Dell Dimension XPS R xxx Systems Service Manual...
  • Page 93 main memory, 1-13 SEC cartridge about, 1-1 Main Screen, System Setup program, guide-bracket assembly removal, 4-25 microprocessor removal, 4-21 type supported, 1-18 secondary hard-disk drive removal, microprocessor removal, 4-21 4-12 mini tower computer Security Screen, System Setup internal view, 1-5 program, A-12 service, 1-6 sockets...
  • Page 94 2-2 internal, 2-4 technical specifications, 1-18 voltage selection switch tools, recommended, 4-1 location, 1-5 troubleshooting boot routine, 2-3 diskette-based diagnostics, 2-6 external visual inspection, 2-2 World Wide Web site, 2-6 Dell Dimension XPS R xxx Systems Service Manual...