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Installing memory
Your server supports from 256 MB to 16 GB of total memory. Supported DIMM sizes include
256MB, 512MB, 1GB, 2GB, and 4GB.
The BIOS configures the memory controller to run in either single channel or dual channel
mode, depending on the following:
■ If one or more fully populated DIMM banks are detected, the memory controller will
run in dual channel mode.
■ If only a single DIMM is present, the memory controller will run in single channel
mode.
DIMM banks must be populated using the following guidelines:
■ DIMM banks must be populated in order, starting with Bank 1.
■ Dual rank (double row) DIMMs must be populated before single rank DIMMs.
Caution Modules must be installed in banks in identical pairs. Use only
DDR2-400 compliant, 240-pin, SDRAM registered ECC, DIMM
memory modules.
Memory modules must be installed in pairs to completely fill each
bank and the banks must be filled in order. If memory is installed
incorrectly, your server will not start.
Caution When using Dual Rank (double row) DIMMs, a maximum of four loads
per memory channel is supported. This means a maximum of four
dual rank DIMMs can be populated on this system board.
8510522.book Page 66 Wednesday, March 16, 2005 11:19 AM