Gateway E-9220T Gateway E-9220T Server User Guide - Page 50

Installing memory Installing memory When you upgrade your server memory, make sure that you install the correct type of memory in your server. Your server supports from 256 MB to 8 GB total memory. Supported DIMM sizes include 256 MB, 512 MB, 1 GB, and 2 GB. Caution Memory modules must be identical in each bank. Use only DDR2-533 MHz, ECC unbuffered, 240-pin DIMM memory modules in 256 MB, 512 MB, 1 GB, or 2 GB sizes. Memory modules must be installed in pairs, to completely fill each bank, and the banks must be filled in order. If you have memory installed incorrectly, your server will not start up. 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 0. ■ Dual rank DIMMs must be populated before single rank DIMMs. ■ When using Dual Rank (double row) DIMMs, a maximum of four loads per memory channel is supported, and therefore a maximum of four dual rank DIMMs can be populated on this system board. Channel B DIMM 1 Channel B DIMM 0 Channel A DIMM 1 Channel A DIMM 0 www.gateway.com 45