HP rp4410, Service Manual

Page: 157 / 246

2. To view the deconfigured quad of memory, enter the
in me
command.
3. Enter the
ser pdt clear
command.
The following message displays followed by a 30 second delay:
If DIMM replacement is necessary, power down the system now: Use ^B
MP:CM> PC -OFF -NC, then pull power cord and replace DIMM. Otherwise,
the system will automatically reboot in 30 seconds.
4. You must remove power from the system within 30 seconds.
5. For instructions on removing and replacing the memory DIMM, see Removing Memory
DIMMs Installing Memory DIMMs .
Removing Memory DIMMs
WARNING! Ensure that the system is powered off and all power sources have been disconnected
from the server before removing or replacing system memory DIMMs.
Voltages are present at various locations within the server whenever an ac power source is
connected. This voltage is present even when the main power switch is in the off position.
Failure to observe this warning can result in personal injury or damage to equipment.
CAUTION: Observe all ESD safety precautions before attempting this procedure. Failure to
follow ESD safety precautions can result in damage to the server.
To remove system memory, follow these steps:
1. If rack-mounted, slide the server out from the rack until it stops. See “Accessing a
Rack-Mounted Server” (page 149) .
NOTE:
The memory extender board can be removed without removing the server from
the rack.
2. Remove the front bezel. See “Removing the Front Bezel” (page 152) .
3. Remove the front cover. See “Front and Top Covers” (page 152) .
4. Remove the memory extender board. See “Removing the Memory Extender Board” (page 155) .
5. Identify the DIMM to be removed and push the extraction levers found on either side of
that DIMM slot outward to the open position. The DIMM ejects from the socket.
6. Remove the DIMM from the socket.
Installing Memory DIMMs
The standard configuration of HP 9000 rp4410 and rp4440 servers includes a 16-DIMM memory
extender board. This extender board must contain a minimum of one GB of memory (four 256
MB DIMMs loaded in quad 0 [connectors 0A, 0B, 0C, and 0D]).
Table 6-1 and Figure 6-8 show the filler requirements and slot IDs for the 16-DIMM memory
extender board.
Table 6-1 DIMM Filler Requirements for 16-DIMM Memory Extender Board
Fillers Required
1
DIMMs Loaded
Six fillers total: Two fillers in each quad 1, 2, and 3 4 DIMMs in quad 0
Four fillers total: Two fillers in each quad 2 and 3 8 DIMMs in quads 0 and 1
Two fillers total: Two fillers in quad 3 12 DIMMs in quads 0, 1, and 2
No fillers required 16 DIMMs in quads 0, 1, 2, and 3
System Memory DIMMs 157