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Memory
For a list of supported memory DIMMs, see:
http://support.intel.com/support/motherboards/server/se7520bd2/sb/CS-013543.htm
.
Product Codes SE7520BD2, SE7520BD2SCSI, and SE7520BD2V
Product codes SE7520BD2, SE7520BD2SCSI, and SE7520BD2V include three banks of DIMMs
across two channels. Channel A consists of DIMMs 1A, 2A, and 3A. Channel B consists of
DIMMs 1B, 2B, and 3B. Bank 1 (DIMMs 1B and 1A) is closest to the edge of the server board.
DIMMs must be identical within each bank.
The minimum allowed memory is 256 MB, using a single 256 MB DIMM in DIMM slot 1B. The
system operates in single channel when only a single DIMM is installed. The maximum allowed
usable memory is 24 GB of DDR 266 and 16 MB of DDR333, using 4 GB DIMMs.
DIMMs must meet the following requirements:
Use only 184-pin, DDR-266/333 ECC, registered DDR DIMM modules
Have a DIMM organization x72 ECC
Support the following sizes: 256 MB, 512 MB, 1 GB, 2 GB, 4GB
i
DDR-333 memory is only supported with BGA package memory on the Intel
®
Server Board
SE7520BD2 (product codes SE7520BD2, SE7520BD2SCSO, SE7520BD2V). TSOP SDRAM
packages will not be supported on DDR-333 DIMMs on these product codes.
A minimum of one 256MB DIMM is required in DIMM socket 1B. This uses single-channel
interleave. However, for dual-channel interleave, providing optimum performance, a minimum
of two DIMMs should be installed in DIMM sockets 1A and 1B. Except for the option of
installing a single DIMM in socket 1B, DIMMs must be installed in pairs and populated as
follows:
DIMM1A and DIMM 1B: Populate these two sockets together first
DIMM 2A and DIMM 2B: Populate these sockets in addition to DIMM 1A and DIMM 2A
if four DIMMs are to be used.
DIMM 3A and DIMM 3B: Populate these sockets after DIMM 1A, DIMM 1B, DIMM 2A,
and DIMM 2B have been populated.