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Intel® Server Board SE7320SP2 & Intel Server Board SE7525GP2 TPS Functional Architecture
Revision 2.0
39
3.5.2 Memory Population
The mixing of memory DDR266 and DDR333 is supported on server board SE7320SP2 and
server board SE7525GP2. However, when mixing DIMM speeds, DDR333 will be treated as
DDR266.
DIMM search rules for standard mode:
1. If DIMM dual pair# >= 1, set memory controller to dual channel mode. Otherwise, go to
step (2).
2. If Channel A DIMM is present, set memory controller to single channel mode A.
Otherwise, go to step (3).
3. If Channel B DIMM is present, set memory controller to single channel mode B.
Otherwise, memory configuration error.
The DIMM population rules are as follows:
• DIMMs should be populated starting from the bank furthest from the MCH –
DIMM slots 1A and 1B.
• Starting with Bank 1, mixed DIMMs must be populated by single rank, then dual
rank.