Dual Inline Memory Modules - Intergraph RAX Systems System Reference Manual

To replace a retention module:
1. Remove the processor module. See "Processor Modules" for details.
2. Remove the heat-sink locks, if necessary. See "Heat-Sink Mounting Brackets" for details.
3. Remove the screws securing the retention module to the system board, and remove the
retention module.
4. Locate the key pin on one end of the processor slot on the board. Carefully line up the
key notch on the new retention module with the key pin on the processor slot. The key
pin on the processor slot indicates the correct orientation of the CPU.
5. Lower the retention module down over the processor slot so that the retention module
seats flatly against the system board. Tighten the screws in a clockwise manner to secure
the module to the board.
WARNING Do not overtighten the screws, as you may damage the module and/or the system
board.
7. Replace the heat-sink locks, if necessary. See "Heat-Sink Mounting Brackets" for details.
8. Replace the processor module. See "Processor Modules" for details.

Dual Inline Memory Modules

See Chapter 3, "Upgrading the System," for important details on handling dual-inline memory
modules (DIMMs). See the System Board Manual for DIMM socket locations.
CAUTION System memory modules from Intergraph Computer Systems are certified for use with
Intergraph computers at extremes of temperatures and system load to ensure reliable
performance. System memory modules available from other vendors may not function
properly or reliably in your Intergraph computer.
CAUTION Do not mix registered and unbuffered DIMMs.
NOTE Whenever you change your memory type from ECC to non-ECC or the reverse, verify that the
DRAM Type BIOS parameter is set correctly. For more information, see System Setup .
To replace a DIMM:
1. Press the release tabs outward, away from each other.
2. Grasp the top edge of the DIMM and pull it out of the socket.
3. Remove the new DIMM from the antistatic package.
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