HP ML570 ProLiant ML570 Generation 2 Server Maintenance and Service Guide - Page 37

Hot-replacement procedure, Removing the memory board

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Removal and Replacement Procedures 3. Disengage the locking switch (1). Hot-replacement procedure: After turning the locking switch, the LEDs turn off, except the amber LEDs. Wait until all green LEDs are off before proceeding. Make note of which DIMM status LED remains amber. This is the DIMM you need to remove and replace. CAUTION: Do not attempt to unlock the memory board in an operational server when the Ready to Hot Plug LED is not green. This generates an audible alarm and causes the memory board LEDs to flash amber. Proceeding to remove the memory board after the audible and visible alarms causes system failure. CAUTION: To prevent system failure, do not remove the memory board from the server until the memory status LED stops blinking. 4. Press the release latches inward firmly (2), disengaging the board from the server. Do not squeeze the latches. 5. Lift the ejector levers up (3). 6. Pull the memory board up out of the server (4). Hot-replacement procedure: While the memory board with the failed or degraded DIMM is being replaced, the system continues to read and write from the operational memory board. Figure 2-11: Removing the memory board HP ProLiant ML570 Generation 2 Server Maintenance and Service Guide HP CONFIDENTIAL Codename: Regret Part Number: 223958-005 Last Saved On: 12/29/03 9:37 AM 2-19

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Removal and Replacement Procedures
3.
Disengage the locking switch
(1)
.
Hot-replacement procedure:
After turning the locking switch, the LEDs turn off, except
the amber LEDs. Wait until all green LEDs are off before proceeding. Make note of
which DIMM status LED remains amber. This is the DIMM you need to remove and
replace.
CAUTION:
Do not attempt to unlock the memory board in an operational server when the
Ready to Hot Plug LED is not green. This generates an audible alarm and causes the
memory board LEDs to flash amber. Proceeding to remove the memory board after the
audible and visible alarms causes system failure.
CAUTION:
To prevent system failure, do not remove the memory board from the server
until the memory status LED stops blinking.
4.
Press the release latches inward firmly
(2)
, disengaging the board from the server. Do not
squeeze the latches.
5.
Lift the ejector levers up
(3)
.
6.
Pull the memory board up out of the server
(4)
.
Hot-replacement procedure:
While the memory board with the failed or degraded
DIMM is being replaced, the system continues to read and write from the operational
memory board.
Figure 2-11: Removing the memory board
HP ProLiant ML570 Generation 2 Server Maintenance and Service Guide
2-19
HP CONFIDENTIAL
Codename: Regret Part Number: 223958-005 Last Saved On: 12/29/03 9:37 AM