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Removal and replacement procedures 42
DIMMs
To remove the component:
1. Power down the server (on page 26).
2. Extend the server from the rack (on page 25).
3. Remove the access panel ("Access panel" on page 27).
4. Open the DIMM slot latches.
5. Remove the DIMM.
To replace the component, reverse the removal procedure.
Memory options
The server memory can be expanded by installing PC5300 DDR2 unbuffered SDRAM DIMMs. The server
supports up to four ECC DDR2 SDRAM DIMMs.
The server supports standard memory configuration for maximum performance with up to 8 GB of active
memory (four 2-GB memory modules).
DIMM installation guidelines
Observe the following guidelines when installing additional memory:
• DIMMs installed in the server must be unbuffered DDR2 SDRAM, 2.5 V, 64 bits wide, and ECC.
• All DIMMs installed must be the same speed (DDR2 PC5300). Do not install DIMMs supporting
different speeds.
• If only a single DIMM is installed, HP recommends installing it in slot 1A.
BIOS detects the DIMM population and sets the system as follows:
• Single-bank mode: DIMMs installed in one bank only.
• Dual-bank interleaved mode: DIMMs installed in both banks with equal bank capacities.