Compaq ML530R Service Guide - Page 48

Caution, Important, Blue = Scsi

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Removal and Replacement Procedures 2-33 4. Press the thumb latch adjacent to the system board tray handle to release the system board tray. Using the system board tray handle, pull the tray partially out of the chassis . 5. Disconnect and remove all cables from the system board and PCI expansion board. See "Cable Routing Diagrams" earlier in this chapter. To improve serviceability, the signal cables and system board are color-coded as follows: Blue = SCSI A Yellow = SCSI B Orange = CD-ROM drive Purple = Diskette drive 6. Push the latches on the system board tray slides to allow the tray to slide further out of the chassis. 7. Pull the system board tray out of the chassis . CAUTION: Electrostatic discharge can damage electronic components. Be sure you are properly grounded before beginning any installation or removal procedure. See "Electrostatic Discharge Information" earlier in this chapter. 8. Disconnect and remove all memory modules, processors, PCI expansion boards, and cables from the system board. Place these components on a nonconductive work surface. IMPORTANT: Options must be reinstalled in the same position from where they were removed. See replacement procedures in this chapter for each of the options requiring installation on the new system board tray. 3 1 3 4 2 Figure 2-26. Removing the system board tray Reverse steps 1 through 8 to replace the system board tray, reinstalling all removed memory modules, processors, and PCI expansion boards onto the new system board tray. Change the switch settings to match the switch settings on the system board being replaced.

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Removal and Replacement Procedures
2-33
4.
Press the thumb latch
adjacent to the system board tray handle to release the system
board tray. Using the system board tray handle, pull the tray partially out of the chassis
.
5.
Disconnect and remove all cables from the system board and PCI expansion board. See
“
Cable Routing Diagrams
”
earlier in this chapter. To improve serviceability, the signal
cables and system board are color-coded as follows:
■
Blue = SCSI A
■
Yellow = SCSI B
■
Orange = CD-ROM drive
■
Purple = Diskette drive
6.
Push the latches
on the system board tray slides to allow the tray to slide further out of
the chassis.
7.
Pull the system board tray out of the chassis
.
CAUTION:
Electrostatic discharge can damage electronic components. Be sure you are
properly grounded before beginning any installation or removal procedure. See
“
Electrostatic
Discharge Information
”
earlier in this chapter.
8.
Disconnect and remove all memory modules, processors, PCI expansion boards, and
cables from the system board. Place these components on a nonconductive work surface.
IMPORTANT:
Options must be reinstalled in the same position from where they were removed. See
replacement procedures in this chapter for each of the options requiring installation on the new system
board tray.
3
2
3
1
4
Figure 2-26.
Removing the system board tray
Reverse steps 1 through 8 to replace the system board tray, reinstalling all removed memory
modules, processors, and PCI expansion boards onto the new system board tray. Change the
switch settings to match the switch settings on the system board being replaced.