CentOS 5 :: Disabling IRQ #169 On Startup ?

I've run into this problem this week. The other night a power supply failed on a different system and appears to have surged the UPS which it and some other computers were plugged in to. One computer was fine, but the RAID server that is used for backups ended up with a bad disk and this "Disabling IRQ #169" message now shows up during boot, right after starting udev and setting the hostname. The system then sits there for 3-5 minutes before repeating a scroll of "/etc/rc.d/rc.sysinit: line 966: /bin/usleep: Input/output error"

I have booted with linux recovery from the CentOS DVD in order to replace the drive that was damaged. I rebuilt the raid array and all the data seems to be fine. There is another message though after "Red Hat nash version 5.1....." no raid disks and with names: "isw_bf jihdchhi_Hostname" failed to stat() /dev/mapper/isw_bf jihdchhi_Hostname

I was considering doing a complete reinstall of CentOS but if there is another solution I would much appreciate it, is it perhaps an issue with Grub not being able to find the updated array? As it is, it is impossible to boot the system except for using a live CD to do it.