TYAN S2915, Manual

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27
Key points to note before installing memory into Thunder n6650W:
For optimal dual-channel DDR2 operation, always install memory in pairs
beginning with outer most dimm slots CPU0 DIMM2 and CPU0 DIMM3.
Memory modules of the same type and density are required for dual-channel
DDR2 operation. Mismatched memory may cause system instability.
Refer to the following table for supported DDR2 populations.
(Note: X indicates a populated DIMM slot)
Single CPU Installed
(CPU0 only)
Dual CPU installed
(CPU0 and CPU1)
Population Option 1 2 3 4
CPU0 DIMM0 x x
CPU0 DIMM1 x x
CPU0 DIMM2 x x x x
CPU0 DIMM3 x x x x
CPU1 DIMM0 x
CPU1 DIMM1 x
CPU1 DIMM2 x x
CPU1 DIMM3 x x