RX300 S3 Options Guide 43
7 ROMB (RAID on Motherboard)
V CAUTION!
Observe the safety instructions in the chapter “Safety notes” on page 15.
The on-board SAS controller can be upgraded to a RAID5 (RAID 0, 1, 5, 10, 50) 
controller with a "MegaRaid PCI Express™ ROMB" upgrade kit. In this case the 
on-board INTEL I/O processor is activated by installing a license key and a 
cache module. 
Two different upgrade kits are offered:
– Upgrade kit S26361-F3205-E256, consisting of an iButton license key and a 
256 MB cache module.
– Upgrade kit S26361-F3205-E556, consisting of an iButton license key and a 
256 MB cache module with a battery also integrated on the module (iTBBU=
integrated Transportable Battery Backup Unit).
7.1 Installing the ROMB upgrade kit
Ê Open the server as described in the chapter “Preparation” on page 21.