Chapter 5: Installing Additional Memory
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Installing and Removing DIMMs
The BIOS automatically detects, sizes, and initializes the memory array, depending on the type, size,
and speed of the installed DIMMs. It reports the memory size and allocation to the system through the
configuration registers. DIMMs reside in the Processor/Memory Complex and are accessible inside
the server chassis. To remove or install DIMMs you need to access the complex and follow the
installation order and groupings required for the DIMMs. It is not necessary to remove the memory
board from the complex.
Installing DIMMs
Please refer to the “Memory Installation Guidelines” earlier in this chapter before installing the
DIMMs. To install DIMMs, complete the following procedure:
CAUTION The memory modules are sensitive to static electricity and can be easily damaged
by improper handling. Do the following when handling the accessory kit:
• Leave the memory module in the anti-static container until you are ready to
install it.
• Always use an anti-static wrist strap and a grounding mat.
• Before you remove a memory module from the anti-static container, touch a
grounded, unpainted metal surface on the HP Server to discharge static
electricity.
1. If the system is already installed and working, power down the system.
Refer to Chapter 1, "Controls, Ports, and Indicators."
WARNING The power supply will continue to provide standby current to the HP Server until
the power cable is disconnected. Disconnect all power cables before servicing.
2. Disconnect the power cables and all external cables.
If necessary, label each one to aid in the re-assembly of the unit.
3. Remove the top cover from the HP Server.
Refer to Chapter 2, "Opening and Closing the HP Server."
4. Observe safety and ESD precautions when working with DIMMs.
5. Expose the memory boards by removing the Processor/Memory complex as described in
“Removing the Processor/Memory Complex” in Chapter 5.
CAUTION DIMM slots on the memory module must be installed only in groups of four.. The
number next to each DIMM slot corresponds to installation sequence. DIMMs
must be installed by groups of four and must be inserted in the indicated sequence
indicated on the memory board.
Remove the DIMM from its antistatic package. Align the two notches in the bottom edge of the
DIMM with the keyed socket on the memory board.
