User Serviceable Platform Components
166
Intel® Server Platforms SR6850HW4 and SR6850HW4/M Product Guide
Removing and Installing DIMMs
To remove or install the DIMMs, remove the memory board from the chassis and install the
DIMMs on the memory board. Be sure to follow the “
”.
CAUTION
Do not attempt to hot remove or hot add a memory board in a non-redundant
configuration. If your server is not configured in the BIOS setup utility for
Maximum Compatibility, Memory RAID, or Memory Mirroring, you must
power down your server before removing or installing any memory board or
memory DIMMs. For instructions, see “
” on
page 165, and “
Cold Insertion of a Memory Board
”, page 165.
Rules for Adding Memory
The following rules apply when adding memory to the memory boards:
DIMMs must be populated in pairs, referred to as a bank. The two banks of DIMMs are defined
on each memory board as:
-
Bank 1: DIMM connectors 1A and 1B
-
Bank 2: DIMM connectors 2A and 2B
Within a single bank, both DIMMs must be identical. (Identical DIMM size and identical
number of devices on the DIMM.
The system does not support mixed-sized DIMMs or DIMMs from different vendors within the
same bank.
If installing a single bank of DIMMs on the memory board, install in Bank 1.
If installing both a bank of single ranked DIMMs and a bank of dual ranked DIMMs on the
same memory board, install the dual ranked DIMMs in Bank 1 and the single ranked DIMMs in
Bank 2.
For best performance, use identical memory DIMMs on each memory board.
Use only DDR2 DIMMs. Other DIMMs will not fit into the socket. Attempts to force a non-
DDR2 DIMM into a socket will damage either the socket or the DIMM.
Figure 81. Use Only DDR2 DIMMs
