Removing the I/O Riser Card
1.
Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2.
Remove the back cover (see "
Removing the Back Cover
" in "Troubleshooting Your System").
3.
Disconnect the following I/O riser card cables (see
Figure 6
-7
):
l
The system status indicator cable
l
The SCSI cable from the SCSI connector
l
The chassis intrusion switch cable from the INTR connector
Figure 6-7. Removing and Replacing the I/O Riser Card
4.
If applicable, loosen the thumbscrew that secures the external SCSI connector cover to the back panel and remove the cover (see
Figure 6
-7
).
5.
Loosen the thumbscrew that secures the I/O riser card to the back panel (see
Figure 6
-7
).
6.
Carefully lift the I/O riser card straight up to clear the chassis.
Replacing the I/O Riser Card
1.
Carefully lower the I/O riser card into the chassis while aligning the card-edge connectors with the connectors on the I/O board.
2.
Insert the card firmly into the I/O board connector until the card is fully seated.
3.
Tighten the thumbscrew that secures the I/O riser card to the back panel.
4.
Replace the external SCSI connector cover and tighten the thumbscrew that secures the cover to the back panel.
5.
Connect the following cables (see
Figure 6
-7
):
l
The back-panel status indicator cable
l
The SCSI backplane cable to the SCSIA connector
l
The intrusion switch cable to the INTR connector
6.
Replace the back cover (see "
Replacing the Back Cover
" in "Troubleshooting Your System").
Memory Riser Cards
The system contains two memory riser cards. Each card contains up to eight memory modules.
Removing the Memory Riser Cards
1.
Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
CAUTION:
Before you perform this procedure, you must turn off the system and disconnect it from its power source. For more information, see
"
Safety First
—
For You and Your System
" in "Troubleshooting Your System."
NOTICE:
See "Protecting Against Electrostatic Discharge" in the safety instructions in your
System Information
document.