Dell OptiPlex GL Service Manual
Dell OptiPlex GL Manual
 |
View all Dell OptiPlex GL manuals
Add to My Manuals
Save this manual to your list of manuals |
Dell OptiPlex GL manual content summary:
- Dell OptiPlex GL | Service Manual - Page 1
'HOOŠ 2SWL3OH[Š *;SUR6\VWHPV 86%(QKDQFHGDQG ,QWHJUDWHG0ESV(WKHUQHW 6(59,&(0$18$/ ® - Dell OptiPlex GL | Service Manual - Page 2
strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and OptiPlex are registered trademarks of Dell Computer Corporation; Intel and Pentium are registered trademarks of Intel Corporation; Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation - Dell OptiPlex GL | Service Manual - Page 3
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 v - Dell OptiPlex GL | Service Manual - Page 4
Chapter 2 Basic Troubleshooting 2-1 Initial User Contact 2-1 External Visual Inspection 2-2 Observing the Boot Routine 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 - Dell OptiPlex GL | Service Manual - Page 5
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 Figure 4-12. Hard-Disk Drive Removal 4-13 Figure 4-13. Power Supply Removal 4-14 Figure 4-14. Microprocessor Fan Removal 4-15 Figure 4-15. System - Dell OptiPlex GL | Service Manual - Page 6
Table 1-2. Table 1-3. Table 1-4. Table 1-5. Table 3-1. Table 3-2. Table A-1. DC Voltage Ranges 1-8 Jumper Descriptions 1-14 Interrupt Assignments 1-14 DREQ Line Assignments 1-15 Technical Specifications 1-16 POST Beep Codes 3-1 System Error Messages 3-4 System Setup Categories A-3 viii - Dell OptiPlex GL | Service Manual - Page 7
ix - Dell OptiPlex GL | Service Manual - Page 8
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. Warnings, Cautions - Dell OptiPlex GL | Service Manual - Page 9
Chapter 1 System Overview This service manual covers the Dell® OptiPlex® GXpro high-speed, upgrad- able desktop systems, which use the Intel® Pentium® Pro family of microprocessors. These Dell systems incorporate the high-performance PCI local bus as well as the ISA expansion bus. These buses are - Dell OptiPlex GL | Service Manual - Page 10
100-Mbps NIC). • Desktop chassis. • Thermal monitoring. • Main system memory Specifications" found later in this chapter. When following the text in this manual, assume that the location or direction relative to the system unit is as shown in Figure 1-1. 1-2 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 11
back of system unit left side right side front of system unit Figure 1-1. System Unit Orientation CAUTION: To avoid possible data or file structure corruptions, the front-panel reset button should be used only when the system cannot be rebooted by pressing . Before you use the - Dell OptiPlex GL | Service Manual - Page 12
diskette/tape drive interface cable DC power cable power supply drive cage hard-disk drive bracket system board AC power receptacle voltage selection switch parallel port line-in jack Figure 1-3. Internal View expansion-card cage chassis 1-4 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 13
cards and PCI expansion cards the next time the system is rebooted. Chapter 4, "Using the ISA Configuration Utility," in the User's Guide describes the ICU and provides instructions for using it to configure the system. The five expansion slots include two ISA expansion-card connectors and five PCI - Dell OptiPlex GL | Service Manual - Page 14
supports all the sound functions found on the Sound Blaster expansion card from Creative Laboratories, Inc. Chapter 6, "Using the Integrated Audio Controller," in the User's Guide provides instructions NOTE: Some users may use an ISA video adapter card. 1-6 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 15
computer. The 10/100-Mbps NIC supports a 10-Mbps direct connection 100-Mbps NIC. Chapter 5, "Using the Network Interface Controller," in the User's Guide provides instructions systems with the 10/100-Mbps NIC. Desktop Chassis The system unit which alerts the BIOS. The power indicator flashes, and a message - Dell OptiPlex GL | Service Manual - Page 16
"standby power." . 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. 1-8 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 17
fan-speed control (TFSC) is a power-supply input signal used to control power-supply fan speed in special applications. 3 Pin 5 - PWRGOOD should measure between +4 and +5 VDC when the power supply is on and operating to indicate that all power-supply output voltages are within ranges specified in - Dell OptiPlex GL | Service Manual - Page 18
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 P4 P6 P5 P3 P1 P7 P2 Figure 1-8. DC Power Cables 1-10 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 19
keyboard controller system board +3 VDC system power supply P1 PWRGOOD PSON# +5 VFP +5 VDC -5 VDC +12 VDC -12 VDC POWER1 power management logic PSON# +5 VFP +5 hard-disk drive P6 internal hard-disk drive main memory sockets DIMM_A DIMM_B DIMM_C DIMM_D MICROPROCESSOR +2.1-3.5 VDC +3.3 VDC - Dell OptiPlex GL | Service Manual - Page 20
power connector (RSR PWR1) System Board Layout The subsections that follow provide service- Memory See the documentation from the video card manufacturer that came with your system for information on removing and replacing video-memory upgrade chips. 1-12 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 21
of 16-, 32-, 64-, and 128-MB DIMMs up to a total memory capacity of 512 MB. The system is shipped with high-speed (60-ns 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 - Dell OptiPlex GL | Service Manual - Page 22
speed. Installed if the microprocessor's internal speed is 200 MHz, or else not installed Installed if the microprocessor service. IRQ7 Generated by super I/O controller to indicate that device connected to parallel port requires service. 1-14 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 23
are installed, this line is available for other use. IRQ15 Generated by device connected to secondary EIDE port to indicate that device requires service. If no device is connected to secondary EIDE port, IRQ15 is available for use by expansion card. DMA Channel Assignments Table 1-4. DREQ Line - Dell OptiPlex GL | Service Manual - Page 24
Specifications Table 1-5. Technical Specifications Microprocessor Microprocessor type Intel Pentium Pro microprocessor Microprocessor speed 200 or 180 MHz First-level cache 16 KB Second-level cache 256 KB for 180 or 200 MHz; 512 KB for 200 32 bits 1-16 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 25
Specifications (continued) System Clocks System clock 60 or 66 MHz (matches external processor speed) Diskette/communications ports 24 MHz from the system clock Memory Architecture 64-bit, noninterleaved DIMM sockets four DIMM capacities 16, 32, 64, and 128 MB, EDO ECC mode Standard RAM - Dell OptiPlex GL | Service Manual - Page 26
PCI video card (see manufacturer's specifications) Key Combinations - Dell OptiPlex GL | Service Manual - Page 27
Table 1-5. Technical Specifications (continued) Physical Height 16.5 cm (6.5 inches) Width 41.9 cm (16.5 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 - Dell OptiPlex GL | Service Manual - Page 28
1-20 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 29
a problem or indicate the correct starting point for troubleshooting the system. A brief explanation of how to load and start the diskette-based diagnostics is located at the end of the chapter. Dell recommends that you perform the following procedures in the order they are presented in this manual - Dell OptiPlex GL | Service Manual - Page 30
monitor, and all peripherals. 2. Verify that all power cables are properly connected to the system unit, the monitor and peripherals, and their power sources. 3. Verify that the keyboard and mouse sticking, it may be necessary to replace the keyboard. 2-2 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 31
boot routine is running, observe the system for any indications of problems. NOTE: Most of the steps in this procedure require observation of No. Troubleshoot the system power supply. If the troubleshooting procedure indicates that the system power supply is operational, troubleshoot the memory. 4. - Dell OptiPlex GL | Service Manual - Page 32
unit's interior hardware can often lead to the source of a problem, such as a loose expansion card, cable connector, or mounting any attached peripherals, and disconnect all the AC power cables from their power sources. 2. Remove the system unit cover. 3. Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 33
1/4-inch nut driver to remove power sources, and turn them on. Does the problem memory troubleshooting all major components of the computer system. CAUTION: To prevent damage to the original diagnostics diskette, always use a backup copy of the diagnostics diskette when servicing a user's system. Dell - Dell OptiPlex GL | Service Manual - Page 34
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 the chapter titled "Getting Help" in the Diagnostics and Troubleshooting Guide. 2-6 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 35
then find it in Table 3-1. If the table does not lead to the source of the problem, run the appropriate tests in the diskette-based diagnostics to assist in troubleshooting the problem. Table 3-1. POST Beep Codes Beep Code Error Probable Causes 1-3 Monitor not detected Disconnected or faulty - Dell OptiPlex GL | Service Manual - Page 36
4-2-1 Search for video ROM failure No timer tick Defective system board 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 4-3-1 Unexpected interrupt in protected mode Memory failure above address 0FFFFh Faulty or improperly seated DIMMs 3-2 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 37
(in alphabetical order) system error messages that can appear on the monitor screen. These messages can help you find the source of a problem. Some of these error messages indicate fatal errors. When a fatal error occurs, the system usually cannot be rebooted until an appropriate hardware change - Dell OptiPlex GL | Service Manual - Page 38
prevents system from using available memory. Diskette/tape drive controller could not locate specific sector or track. Failure power cable. Faulty diskette, faulty or improperly connected diskette/tape drive interface cable, or loose power cable. 3-4 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 39
System Setup program, improperly connected hard-disk drive cable, faulty hard-disk controller subsystem (defective system board), or loose power cable. Incompatible Processor: CPU0 is B0 step or below Unsupported version of Unsupported micromicroprocessor installed processor installed. on system - Dell OptiPlex GL | Service Manual - Page 40
defective keyboard/mouse controller (defective system board). Keyboard stuck key failure Keyboard controller failure Keyboard/mouse controller failed. Defective keyboard/ mouse controller (defective system board). 3-6 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 41
Software in use conflicts with operating system, application program, or utility. Memory test did not complete. System does not detect NIC. Faulty application program or utility. POST memory test terminated by pressing . Incorrect NIC drivers installed. Beep Codes and Error Messages 3-7 - Dell OptiPlex GL | Service Manual - Page 42
operating system on diskette. diskette. Plug and Play Configuration Error System encountered problem in trying to configure one or more expansion cards. System resource conflict. diskette/tape drive, harddisk drive interface cable, or power cable. 3-8 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 43
sectors on dis- locate sector on diskette kette or hard-disk drive. or hard-disk drive. Seek error MS-DOS unable to locate specific track on diskette or hard-disk drive. Defective diskette or hard-disk drive. Seek operation failed System could not find Faulty diskette or hardparticular - Dell OptiPlex GL | Service Manual - Page 44
too hot. Write fault Write fault on selected drive MS-DOS cannot write to diskette or hard-disk drive. Faulty diskette or harddisk drive. 3-10 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 45
Chapter 4 Removing and Replacing Parts This chapter provides procedures for removing the components, assemblies, and subassemblies in the system unit. Unless otherwise noted, each procedure assumes the following: • You have performed the steps in "Precautionary Measures" found later in this chapter. - Dell OptiPlex GL | Service Manual - Page 46
surface, such as the system power supply's fan guard, on the chassis. If a wrist grounding strap is not available, touch the fan guard or some other unpainted metal surface on the back of the system unit to discharge any static charge from your body. 4-2 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 47
Floor Stand floor stand screw Figure 4-1. Floor Stand Removal To remove the floor stand, follow these steps: 1. Place left side of the system unit 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. The screw - Dell OptiPlex GL | Service Manual - Page 48
, 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. 4-4 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - 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 screwdriver and push in on the two or three plastic clips that hold the button to the system - Dell OptiPlex GL | Service Manual - Page 50
. To replace the front-panel insert for the 3.5-inch bay, from outside the cover, place the insert in position and press it into the opening. 4-6 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 51
Indicator Card chassis hook (2) indicator card screw indicator card cable Figure 4-6. Indicator Card Removal speaker connector To remove the indicator card, follow these steps: 1. Remove the hard-disk drive bracket. See "Drives" found later in this chapter. 2. Remove the speaker connector from - Dell OptiPlex GL | Service Manual - Page 52
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. 4-8 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 53
be installed in the system unit. Refer to this figure when you perform any of the procedures in the following subsections. system power supply two-bay DC power cable drive cage diskette/tape drive interface cable 3.5-inch diskette drive CD-ROM/tape drive interface cable hard-disk drive bracket - Dell OptiPlex GL | Service Manual - Page 54
To remove a drive from the 3.5-inch diskette drive bay, follow these steps: 1. Disconnect the DC power cable and the interface cable from the back of the drive. 2. Remove the bracket retaining screw. 3. Engage those two hooks in the side of the drive. 4-10 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 55
tab (2) Figure 4-10. 5.25-Inch Drive Removal To remove a 5.25-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 - Dell OptiPlex GL | Service Manual - Page 56
To remove a hard-disk drive bracket, follow these steps: 1. Disconnect the DC power cable(s) and the interface cable(s) from the back of the drive(s). 2. Remove the of the chassis support. 4. Lift the hard-disk drive bracket out of the system unit. 4-12 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 57
hard-disk drive drive-bracket mounting screw (4) hard-disk drive bracket Figure 4-12. Hard-Disk Drive Removal To remove a hard-disk drive, follow 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- - Dell OptiPlex GL | Service Manual - Page 58
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 system power supply from the system unit. 4-14 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 59
Fan Removal To remove the system power supply, follow these steps: 1. Rotate the power supply to the right to access the microprocessor fan connector. See "System Power Supply," found earlier in this chapter. 2. Sqeeze the latch and pull out the fan power cable from the microprocessor fan connector - Dell OptiPlex GL | Service Manual - Page 60
(SPKR-OUT) line-in jack (LINE-IN) riser board power connector (RSR PWR1) riser board connector (RISER) riser board power connector (RSR PWR2) NIC connector (ENET) USB connectors(2) interface connector (IDE2) Figure 4-15. System Board Components 4-16 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 61
Expansion Cards The system unit has a removable expansion-card cage. The expansion cards fit into connectors on a riser board. Dell recommends that you remove the expansion-card cage first before removing or installing expansion cards. Expansion-Card Cage lever expansioncard cage notch chassis - Dell OptiPlex GL | Service Manual - Page 62
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. 4-18 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 63
Riser Board retaining screw (2) slot (2) expansion-card cage riser board Figure 4-18. Riser Board Removal To remove the riser board, follow these steps: 1. Remove the expansion-card cage and all expansion cards. See the preceding two procedures. 2. On a flat work surface, turn the expansion-card - Dell OptiPlex GL | Service Manual - Page 64
socket, and press the DIMM straight down into the socket slot until the securing clips snap into place around the ends of the DIMM. 4-20 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 65
Microprocessor/Heat Sink Assembly heat sink microprocessor securing clip hooks over tabs on socket (front and back) release lever microprocessor Figure 4-21. Microprocessor Securing Clip microprocessor socket To remove the microprocessor/heat sink assembly, follow these steps: 1. Remove the - Dell OptiPlex GL | Service Manual - Page 66
to place the thermal interface pad that comes with the replacement microprocessor between the microprocessor and the heat sink before reinstalling the securing clip. 4-22 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 67
Terminator or Add-In Card The system unit may have a terminator card or a secondary microprocessor (dual-processing systems) on an add-in card installed on the system board. This section describes removing and replacing the terminator card and the add-in card. Terminator Card handle terminator card - Dell OptiPlex GL | Service Manual - Page 68
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. 4-24 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 69
recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. 1. 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 - Dell OptiPlex GL | Service Manual - Page 70
3. Remove the microprocessor fan. 4. Disconnect all cables from the system board. Remove the hard-disk drive power cable(s). Slide any drives in the 5.25-inch bays toward the front of the system unit, but board and install them on the replacement board. 4-26 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 71
after the monitor displays the message Press 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. Let the system complete the load operation; then shut down the system and - Dell OptiPlex GL | Service Manual - Page 72
at system startup. Microprocessor: Level 2 Cache: System Memory: Service Tag: Pentium Pro-200 512 KB Integrated 64 MB ECC EDO XXXXX Tab,Shift-Tab change fields change values Alt-P next Esc exit Alt-B reboot Figure A-1. System Setup Screens A-2 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 73
Identifies drives attached to the IDE1 and IDE2 connectors on system board. Each EIDE connector supports two EIDE drives (Drive 0 and Drive 1). For EIDE hard-disk drives, the category to Auto. Base Memory Displays amount of memory available to MS-DOS programs that do not use extended or expanded - Dell OptiPlex GL | Service Manual - Page 74
Category Function Reserved Memory Designates a region of system board memory that can be supplied by an expansion video cards are not designed to be shadowed or cached. If video problems occur, try setting Fast Video BIOS to Off. CPU Speed Indicates A-4 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 75
drives support this feature. Enabling this feature for drives that do not support it may cause the EIDE drive to become inoperable until the system is restarted and the Power only on GXpro systems containing the 10/100-Mbps Ethernet NIC. Speaker Enables on-board speaker. System Setup Program A-5 - Dell OptiPlex GL | Service Manual - Page 76
memory on EMS expansion cards. If EDO DIMMs are installed, EDO is displayed next to this category. Service Tag Displays system's five-character service tag number. Asset Tag Displays the asset tag number up to ten characters if one is assigned. A-6 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 77
boot routine, observing when trouble- shooting, 2-3 bracket hard-disk drive, 1-4, 4-12 C cables DC power, 1-4, 1-10 diskette/tape drive interface, 1-4 EIDE, 4-9 card-slot opening, 1-4, 4-18 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 - Dell OptiPlex GL | Service Manual - Page 78
of, 1-14 ISA expansion cards, 1-5, 1-12, 4-16, 4-17, 4-18 J jumpers, list of, 1-14 K key combinations, to enter System Setup program, A-1 keyboard connector location, 1-4, 1-12, 4-16 2 Dell OptiPlex GXpro Systems Service Manual - Dell OptiPlex GL | Service Manual - Page 79
jack, 1-4, 1-12, 4-16 M memory, main, 1-2, 1-13 messages, 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 support, 1-8 sockets battery, 1-12, 4-25 DIMM, 1-12, 4-16, 4-20 speaker, removal, 4-8 specifications - Dell OptiPlex GL | Service Manual - Page 80
features, 1-2 system power supply, 1-8 System Setup program, A-1 system specifications, 1-16 system unit specifications, 1-16 terminator card, removal, 4-23 thermal monitoring, 1-7 troubleshooting , 2-2 internal, 2-4 voltage selection switch, 1-4 4 Dell OptiPlex GXpro Systems Service Manual
-
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
-
69
-
70
-
71
-
72
-
73
-
74
-
75
-
76
-
77
-
78
-
79
-
80
 |
 |
’HOO
2SWL3OH[
*;
SUR
±6\VWHPV
86%±(QKDQFHG±DQG
,QWHJUDWHG±²³´²³³µ0ESV±(WKHUQHW
6(59,&(±0$18$/
®