77
www.gateway.com
Memory online sparing
The chipset on the system board in the Gateway 9515 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
maintained as a spare, only 75% of the installed memory is usable. For example, if four
2 GB DIMMs and two 4 GB DIMMs are installed, only four are actively used (the other
two are used as spares), so the maximum usable memory is 10 GB.
In case of DIMM failure, a DIMM fault LED adjacent to the DIMM slot will light orange
to indicate the failed memory module.
To install or replace memory:
1
Follow the instructions in
“Preventing static electricity discharge” on page 43
. Make
sure you turn off the server, then unplug the power cord and all other cables connected
to the server.
2
Follow the instructions in
“Opening the server case” on page 44
.
Supported DDR2-400 DIMM populations
Bank 3 - DIMMs 3A and 3B
Bank 2 - DIMMs 2A and 2B
Bank 1 - DIMMs 1A and 1B
Single row
Single row
Single row
Empty
Single row
Single row
Empty
Empty
Single row
Empty
Double row
Double row
Empty
Empty
Double row
Empty
Single row
Double row
Single row
Single row
Double row
Содержание 9515
Страница 1: ...User Guide Gateway 9515 Server ...
Страница 5: ...iv www gateway com B BIOS Settings 155 C Safety Regulatory and Legal Information 173 Index 181 ...
Страница 15: ...10 www gateway com ...
Страница 125: ...120 www gateway com ...
Страница 151: ...146 www gateway com ...
Страница 177: ...172 www gateway com ...
Страница 178: ...Appendix C 173 Safety Regulatory and Legal Information Safety information Legal and Regulatory Information ...
Страница 193: ...188 www gateway com ...
Страница 194: ...A MAN 9515 USR GDE R0 12 04 ...