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3.2.2 Memory
The system mainboard uses Dual Inline Memory Modules (DIMM). The memory DIMMs accommodates Registered
ECC (400/533/667) SDRAM DIMM and Double Data Rate Memory (DDR2) memory modules in 128MB, 256MB,
512MB, 1GB, and 2GB, 4GB combinations. Total memory size for CPU is up to 32GB.
CAUTION
The system mainboard has strict memory type and timing requirements.
Before you purchase DDR (Double Data Rate) memory for using in the system mainboard, you should contact your
local reseller for a recommend list of system memory that has been validated on this system. It only supports
registered memory, not supports unbuffered type memory.
CAUTION
To take advantage of the 128-bit interface, you must install DIMMs in pairs of two. DIMM0 and DIMM1 are paired;
and DIMM2 and DIMM3 are paired. If you are only installing two DIMMs into a Memory Bank, it is recommended
that you install them in slots DIMM3 and DIMM4 to get the full bandwidth.
NOTICE
For optimal dual-channel DDR operation, installing DIMMs in pair is highly recommended. For two DIMMs per CPU,
install them far from the CPU. For four or more DIMMs per CPU, install them same method to the CPU.
Memory Configuration Chart
( Note: O indicates a populated DIMM Slot, The chart below does not included all the configuration )
Memory Slot #
DIMM1
DIMM2
DIMM3
DIMM4
O
O
128bit memory support
O
O
O
O
64bit memory support
O
O
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