Acer Altos R920 Series, User Manual

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93
Installing and removing the RAID activation key
and RAID cache
The optional RAID activation key and RAID cache enables enhanced
RAID functionality on the SAS module. The RAID cache serves as
memory for the SAS controller, and as a disk cache to store write data
to the drives. The RAID cache must be a 512 MB DDR2-667 DIMM.
To install the RAID activation key and RAID cache:
1 Perform the pre-installation instructions described on page 39.
2 Remove the processor air baffle. Perform instructions described in
“To remove the processor air baffle” section on page 45.
3 Remove the SAS module. Perform instructions described in “To
install the SAS module” section on page 89.
4 Remove the RAID activation key from its protective packaging.
5 Align then insert the activation key into the RAID activation key
connector on the SAS module
(A) .
6 Open the clips on the RAID cache slot on the SAS module (B) .
7 Align then insert the RAID cache into the slot (C) .
8 Push down on the top edge of the RAID cache until the holding
clips snap in place
(D) .
9 Observe the post-installation instructions described on page 40.
D
C
RAID
Key
A
B
C