Owners Manual

DIMM Type DIMMs
Populated/
Channel
Operating Frequency (in MT/s) Maximum DIMM Rank/
Channel
1.5 V 1.35 V
UDIMM ECC 1 1333, 1066, and 800 1333, 1066, and 800 Dual rank
2 1333, 1066, and 800 1333, 1066, and 800 Dual rank
RDIMM 1
1600, 1333, 1066, and 800
1333, 1066, and 800
1333, 1066, and 800
1066 and 800
Dual rank
Quad rank
2
1600, 1333, 1066, and 800
1066 and 800
1333, 1066, and 800
1066 and 800
Dual rank
Quad rank
The system contains 12 memory sockets split into two sets of six sockets, one set per processor. Each six-socket set is
organized into three channels. In each channel, the release levers of the first socket is marked white and the second
black.
NOTE: DIMMs in sockets A1 to A6 are assigned to processor 1 and DIMMs in sockets B1 to B6 are assigned to
processor 2.
Figure 35. Memory Socket Locations
Processor 1
channel 1: memory sockets A1 and A4
channel 2: memory sockets A2 and A5
channel 3: memory sockets A3 and A6
Processor 2 channel 1: memory sockets B1 and B4
channel 2: memory sockets B2 and B5
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