Compaq ML350 System Board

Removal and Replacement Procedures

2-36 Compaq ProLiant ML350 Generation 3 Server Maintenance and Service Guide

COMPAQ CONFIDENTIAL Codename: Steel Dragon 2.4 Part Number: 278704-002 Last Saved On: 12/18/02 9:43 AM

System Board

To remove the system board:

1. Complete the preparation procedures. Refer to “Preparation Procedures” earlier in this

chapter.

2. Open the bezel door. Refer to “Bezel Door” earlier in this chapter.

3. Remove the access panel. Refer to “Access Panel” earlier in this chapter.

4. Remove the air baffle. Refer to “Air Baffle” earlier in this chapter.

IMPORTANT: For tower models, lay the system on the right side.

5. Remove the CPU fan module. Refer to “System Fan Modules” earlier in this chapter.

6. Disconnect all power cables, device cables, and the power button cable from the system

board. Refer to “Cable Routing Diagrams” earlier in this chapter.

7. Remove all expansion board(s) and memory modules. Refer to “Expansion Board” and

“Memory Modules” earlier in this chapter.

8. Remove all processors and Processor Power Modules (PPMs). Refer to “Processors and

Processor Power Modules” earlier in this chapter.

9. Remove the four screws securing the system board to the chassis with a Torx T-15

screwdriver (1).

10. Push the system board toward the front of the unit until the board stops (2).

11. Holding the system board from the edges, lift up the rear of the system board, pulling up

and away from the chassis (3).

1

3

2

1

Figure 2-34: Removing the system board

To replace the system board, reverse steps 2 through 11.

Contents

Main Compaq ProLiant ML350 Generation 3 Server Maintenance and Service Guide Page Contents Page About This Guide Symbols in Text Compaq Technician Notes Where to Go for Additional Help Integrated Management Log Telephone Numbers Text Conventions Illustrated Parts Catalog Mechanical Parts Exploded View Figure 1-1: Mechanical parts exploded view Mechanical Spare Parts List Table 1-1: Mechanical Spare Parts List System Components Exploded View Figure 1-2: System components exploded view System Components Spare Parts List Table 1-2: System Components Spare Parts List Table 1-2: System Components Spare Parts List continued Removal and Replacement Procedures Electrostatic Discharge Information Symbols on Equipment These symbols may be located on equipment in areas where hazardous conditions may exist. Preparation Procedures Non-Hot-Pluggable Device Powering Down the Server Rack Stability Warning Bezel Door (Tower Model Only) Access Panel Bezel (Rack Model Only) Page Page Removable Media Device Blank Cable Routing Diagrams Diskette Drive Signal Cable IDE CD-ROM Drive Signal Cable Removable Media Device Cable Page Air Baffle System Fan Modules Page Page Drive Bay Configuration Hot-Plug Hard Drive Blank Hot-Plug Hard Drive Hot-Plug Hard Drive Cage Page Removable Media Device Page Expansion Slots Figure 2-23: Expansion slot locations Table 2-3: Expansion Slots Expansion Board Page Memory Module Guidelines Memory Modules Processors and Processor Power Modules Processor Page Page Processor Power Module System Board System Battery System Board Battery Page Power Supply Power Supply Backplane Board Feet (Tower Model Only) Diagnostic Tools Diagnostic Tools Utility Overview Table 3-1: Diagnostic Tools Page Page Table 3-1: Diagnostic Tools continued For More Information www.compaq.com/support/servers. Connectors, Switches, and LEDs Connectors and Components Rear Panel Components Figure 4-1: Rear panel components System Board Components Figure 4-2: System board components Table 4-2: System Board Components Switches System Configuration Switch Settings Table 4-3: System Configuration Switch Settings Table 4-4: System ID Switch Settings Resetting System Configuration Settings LEDs Power Button, System Status LEDs, and Unit Identification Button Figure 4-4: Power button, system status LEDs, and Unit Identification button Table 4-5: Power Button, System Status LEDs, and Unit Identification Button System Board LEDs Figure 4-5: System board LEDs Table 4-6: System Board LEDs Table 4-6: System Board LEDs continued Hot-Plug Hard Drive LEDs Table 4-7: Hot-Plug SCSI Hard Drive LED Combinations Table 4-7: Hot-Plug SCSI Hard Drive LED Combinations continued Network Interface Controller LEDs Physical and Operating Specifications System Unit Table 5-1: System Unit Specifications Rack Server System Unit Table 5-2: Rack Server System Unit Specifications Memory Table 5-3: Memory Specifications 1.44-MB Diskette Drive Table 5-4: 1.44-M Diskette Drive Specifications IDE CD-ROM Drive Table 5-5: IDE CD-ROM Drive Specifications Wide Ultra3 SCSI Hot-Plug Hard Drives Table 5-6: Wide Ultra3 SCSI Hard Drive Specifications Integrated Compaq NC7760 Gigabit Server Auto-switching NIC Table 5-7: Integrated Compaq NC7760 Gigabit Server Auto-switching NIC Specifications Integrated Dual Channel Wide Ultra3 SCSI Adapter Table 5-8: Integrated Dual Channel Wide Ultra3 SCSI Adapter Specifications Remote Insight Lights-Out Edition II Option Board Table 5-9: Remote Insight Lights-out Edition II Option Board Specifications Index A B C D E F G H I L M N O P R S T U V W