Removal and replacement procedures 41
Cache module
To remove the component:
1. Power down the server (on page 25).
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Extend the server from the rack (on page 26).
4. Remove the access panel ("Access panel" on page 27).
5. If installed, remove the FBWC capacitor pack ("FBWC capacitor pack" on page 41).
6. Remove the PCI riser cage ("PCI riser cage" on page 46).
7. Remove the cache module.
To replace the component, reverse the removal procedure.
IMPORTANT: A cache module is required for a 10 SFF drive cage. Drives installed in a 10
SFF configuration do not function without a cache module.
FBWC capacitor pack
CAUTION: To prevent a server malfunction or damage to the equipment, do not add or
remove the battery pack while an array capacity expansion, RAID level migration, or stripe size
migration is in progress.
To remove the component:
1. Power down the server (on page 25).
2. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
3. Extend the server from the rack (on page 26).
4. Remove the access panel ("Access panel" on page 27).