HP Integrity rx4640, Operation And Maintenance Manual

Page: 154 / 232

Chapter 7
Removing and Replacing Components
System Memory DIMMs
154
System Memory DIMMs
System memory DIMMs are located on the memory extender board.
WARNING Ensure that the system is powered down and all power sources have been disconnected from the server
prior to 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 could result in personal injury or damage to equipment.
CAUTION
Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD safety
precautions could result in damage to the server.
Removing System Memory DIMMs
To remove system memory, perform the following steps:
Step 1. If rack mounted, slide the HP Server out from the rack until it stops. See “Accessing a Rack Mounted Server” on
page 141.
NOTE If desired, the processor extender board may be removed without removing the HP Server from
the rack.
Step 2. Remove the front bezel. See “Front Bezel” on page 144.
Step 3. Remove the front cover. See “Front and Top Covers” on page 145.
Step 4. Remove the memory extender board. See “Memory Extender Board” on page 151.
Step 5. Identify the DIMM to be removed and push the appropriate extraction levers found on either side of the DIMM
slot outward to the open position. The DIMM will eject from the slot.
Step 6. Remove the DIMM from the socket.
Installing Memory DIMMs
Your hp Integrity rx4640 comes with a sixteen DIMM memory extender board that is minimally configured with 1GB of
memory [four 256Mb DIMMs loaded in quad 0 (slots 0A,0B,0C,and 0D)]. See Figure 7-9, “16 DIMM Extender Board Slot
IDs.”
An optional thirty-two DIMM memory extender board is available to replace the sixteen DIMM memory extender board and
must also be minimally configured with 1GB in quad 0. See Figure 7-10, “32 DIMM Extender Board Slot IDs.”
You may insert additional DIMMs into both sixteen and thirty-two DIMM boards. When adding DIMMs, you must use a
minimum of four like sized DIMMs in the next available quad.