82 REMOVAL AND REPLACEMENT PROCEDURES
Memory
Memory Module Features
4 memory slots for DIMMS
256-MB, 512-MB, 1-GB and 2-GB pairs
8 GB maximum configuration (4 GB maximum on Windows and 16 GB maximum on Linux)
Supports single-channel or dual-channel DIMMs
Supports DDR2-400
No support for mirroring, no spare DIMM support
Standard ECC (72-bit ECC)
Enhanced ECC (x4 SDDC or 144-bit ECC) in dual-channel mode when all DIMMs are x4
DED retry
Memory Module Requirements
Use only industry-standard, registered, PC2-3200 DIMMs
Match DIMM pairs by size and type
No support for unbuffered memory
Removing Memory Module
1 Disconnect power from the system (page 68), remove the access panel (page 74), lay the
workstation on its side with the system board facing up. If an airflow duct is installed, remove the
system fan assembly (page 80) to gain access to the DIMMs.
CAUTION To ensure that memory modules are not damaged during removal or installation, power off
the workstation and unplug the power cord from the AC power outlet. Wait until the LED on the back of
the power supply turns off before removing memory. If you do not unplug the power cord while installing
memory, your memory modules might be damaged and the system will not recognize the memory
changes.
2 Gently push outwards on the socket levers.
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