Intel SR1520ML manual Processor, Memory

Processor

Each server board must have one processor installed. Each board can use a different processor. For a list of supported processors, see http://support.intel/com/support/ motherboards/server/X38ML.

Memory

Each server supports four DDR2 667 / 800 MHz unbuffered ECC DIMMs. The maximum memory capacity is 2 GB unbuffered, 1 Gbit DDR2 memory. The minimum is one 256- MB DIMM. The four slots are partitioned into Channel A and Channel B. Channel A consists of DIMM A1 and DIMM A2. Channel Bconsists of DIMM B1 and DIMM B2. DIMM A1 is the closest to the MCH.

DIMMs must meet the following requirements:

•If dual-channel operation is desired, Channel A and Channel B must be populated identically (i.e., same capacity)

•Use DDR2 667 / 800 only.

•The speed used on all the channels is the slowest DIMM in the system

•Use ECC or non-ECC DIMMs

•You can mix different memory technologies (size and density)

•For single-channel mode, either channel may be used and DIMM sockets within the same channel can be populated in any order

•For dual-channel interleaved mode, DIMM sockets may be populated in any order as long as the total memory in each channel is the same.

•For dual-channel asymmetric mode, DIMM sockets may be populated in any order.

For a complete list of supported memory DIMMs, see http://support.intel/com/support/ motherboards/server/X38ML.

12 Intel® Server System SR1520ML User’s Guide