vista updates kill computer

I have been running vista ultimate 64 stable for several months now on a new build. However, after downloading and installing service pack 1, it sent me to a blue screen, did a memory dump, and then the computer would not reboot again. It powers on, albeit just the case lights, and fans but will not post to BIOS, just a black screen. The monitor doesn't even come out of sleep when the computer is powered up (tells me there is no signal). I have removed all but 1 gb of ram, disconnected the HD's and all other peripherals and tried rebooting again, but nothing changed. Could the update have killed my motherboard? Any suggestions would be greatly appreciated.

phenom 9600
msi k9a2 platinum
4 gb kingston hyper X
coolermaster pro 1000W
two HIS 3870's in crossfire
two samsung spinpoint T series 500 gb in raid 0

Thanks,
Brian

I highly doubt anything's 'dead'. More than likely it's a (pretty nasty) compatibility issue between whetever teh update changed and what you have installed already.

First thing you need to do is get the computer to start:

How to perform a Startup repair:
http://www.vistax64.com/tutorials/ [...] epair.html


Once done/successful: Since there's not much more information than "It Doesnt' Work", then I would start up into Safe Mode, clean out all the existing device (Audio/Video) drivers - Since you have Crossfire, I'd remove one card while doing it. Make sure it's all clean, boot on the default Vista drivers, and them go back through and reinstall your ATI video drivers and the Crossfire stuff.


How to generate a system health report:
http://www.vistax64.com/tutorials/ [...] eport.html

checking the Reliability Monitor for errors:
http://www.vistax64.com/tutorials/ [...] nitor.html

How to check system files in Vista:
http://www.vistax64.com/tutorials/ [...] mmand.html

How to perform a full system repair:
http://www.vistax64.com/tutorials/ [...] vista.html