Chapter 4: Installing Components

Installing and removing the ROMB (RAID on Motherboard) activation key and dedicated RAID memory

Functionality for RAID levels 5, 10, and 50 is enabled by using the optional Intel RAID Activation Key (1-wire serial security EEPROM) and dedicated RAID memory installed in the onboard RAID cache memory socket. The system BIOS provides the IOP ROMB setup option in which the SCSI and Intel RAID Controller SROMBU42E options can be selected (SCSI mode: IOP ROMB = Disabled, or SROMBU42E mode: IOP ROMB = Enabled).

Important

The IOP332 ROMB option in BIOS Setup is grayed out unless a valid

Intel RAID Activation Key and compatible RAID memory are present.

 

If IOP ROMB is enabled, the system boots using the ROMB option ROM. In this case, the SCSI channels are used by the ROMB solution to enable RAID 5, 10, and 50 functionality. If the RAID Activation Key and RAID DIMM are not present, the system boots in SCSI mode and the IOP332 ROMB option in system BIOS will be grayed out.

The onboard RAID (levels 1 and 2) and the ROMB RAID (levels 5,

Important 10, and 50) are mutually exclusive solutions. Only one of the two may be used at a time. A RAID array (using one or more drives) transfer from one mode to the other is not supported.

Your server’s system board includes a RAID cache memory socket. This DIMM is not shared with main memory and is for exclusive use as RAID cache for ROMB functionality. The ROMB subsystem supports one 128 MB, 256 MB or 512 MB DDR400 un-buffered ECC DIMM, enabling higher performance operation (write back cache). For enhanced data protection and maximum performance, the system board also supports the RAID Smart Battery accessory, which provides up to 72 hours of battery back-up. For more information on the RAID Smart Battery option, see “Installing and removing the Smart Battery” on page 129.

To install the RAID activation key and RAID DIMM:

1

2

3 Remove the processor air baffle by following the instructions in “Removing and installing the processor air baffle” on page 67.

4 Remove the memory board or memory board air baffle from slot C by following the instructions in “Installing and removing memory boards” on page 85.

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