Gateway 9415 - Manual (Page 72)

67 www.gateway.com
■ A maximum of four DIMMs can be populated when all four DIMMs are dual rank
(double row) DIMMs.
Memory online sparing
The chipset on the system board in your Gateway server supports memory online sparing,
which can provide a way to prevent data loss in case of DIMM failure. Memory online
sparing is configured in the BIOS.
Using memory online sparing, one DIMM per channel (selectable in the BIOS setup utility)
is used as a memory spare (the spare DIMM must be equal to, or larger than, the largest
DIMM in that channel). If a DIMM begins to fail, the contents of the failing DIMM is
copied to the spare DIMM in that channel. When all of the data is copied, the primary
DIMM is automatically removed from service. Since one DIMM per channel is always
Supported DDR2-400 DIMM populations
Bank 1 - DIMMs 1A and 1B Bank 2 - DIMMs 2A and 2B Bank 3 - DIMMs 3A and 3B
Single row Single row Single row
Single row Single row Empty
Single row Empty Empty
Double row Double row Empty
Double row Empty Empty
Double row Single row Empty
Double row Single row Single row
8510522.book Page 67 Wednesday, March 16, 2005 11:19 AM