Upgrading Your System 4-33Installing a Disk Array ControllerSee "PCI Option Board" for the installation of a disk array controller.IMPORTANT:! A riser card is designed for installing only low-profile PCI boards or full-height PCI boards. Before installing a PCI board, make sure of the cardspecification.! If a PCI board is installed in a slot lower than the one containing the diskarray controller, the LED connector on the disk array controller board cannotbe connected to the DAC LED connector on the system board. (The diskaccess lamps on the front of the server will not indicate the status of access tothe hard disk drives connected with the disk array controller.)! If more than one AcceleRAID 160 or AcceleRAID 352 disk array controllerboard is installed, the system disk to boot the system must be connected to thedisk array controller board installed in the slot having the highest bootpriority.The boot priority of the disk array controller board is:3C → 2C → 1C → 3B → 2B → 1B! To switch the internal hard disk drives into a disk array configuration byconnecting a disk array controller to the full-height riser card, connect thecable before installing the riser card on the system board.! When connecting a disk array controller, start the BIOS SETUP utility, select[Boot] → [Hard Disk Drives], and set the 8th priority or earlier for thecontroller. If the 9th priority or later is set, the system is unable to start thedisk array controller configuration menu.
