New computer stops loading at crcdisk.sys

I built an ECS A790GXM-AD3, stuck 4 gigs of DDR3 1333 in it, an AMD X545, some cheaper ATI card (I don't even remember what number it is), and a 500 gig HDD.

Anyway - the machine POSTs fine, will boot XP and vista fine - but only under certain circumstances!

Launching either installer for XP or Vista (haven't gotten around to trying a linux live CD yet..) results in an error screen for XP and Vista just endlessly showing the progress bar.

I then attempted sticking a different HDD that already had XP on the drive - booted right up no problems.

I proceeded to install Vista (the requested OS) on the 500 gig drive, but on my personal computer - installed and booted up fine. Following this I reinstalled the drive and the machine booted up vista fine - however soon as it restarted for updates - the error occurred again.

Sure I might be able to get the machine running for now - by disallowing any kind of update on the machine, but that is not a permanent solution.

I've elminated the possibility of virtually any bad hardware so I'm guessing it's a BIOS setting - however I've yet to find anything on the ECS website describing such an issue.

The same software error on 3 installs from various sources on both XP and Vista?

I was able to launch and run other operating systems and the like.

I was finally able to determine that the system was hanging whenever it tried to load the raid drivers for the ECS mobo - disabling the device in BIOS fixed the issue.