Service Manual

Figure 57. System memory

Memory channels are organized as follows:

Table 5. Memory channels

Processor Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5

Processor 1 Slots A1 and A7 Slots A2 and A8 Slots A3 Slots A4 and A9 Slots A5 and A10 Slots A6

Processor 2 Slots B1 Slots B2 Slots B3 Slots B4 Slots B5 Slots B6

Table 6. Memory population

DIMM Type DIMMs Populated/

Channel

Voltage

Operating Frequency (in MT/s) Maximum DIMM Rank/

Channel

RDIMM 1

1.2 V

2933, 2666, 2400, 2133, 1866 Dual rank or single rank

2 2933, 2666, 2400, 2133, 1866 Dual rank or single rank

General memory module installation guidelines

NOTE:

If your system's memory configurations fail to observe these guidelines, your system might not boot, might stop

responding during memory configuration, or might operate with reduced memory.

The system supports Flexible Memory Configuration, enabling the system to be configured and run in any valid chipset architectural

configuration. The following are the recommended guidelines for installing memory modules:

• x4 and x8 DRAM based memory modules can be mixed. For more information, see the Mode-specific guidelines section.

• Up to two RDIMMs can be populated per channel regardless of rank count.

Installing and removing system components