Posted 14 March 2008 - 10:45 AM
Hmm, where to start.
About 3 months ago, my system started freezing after the screen saver kicked in. I'd have nothing but a blank screen (my option for screen saver) and the only option I had was a hard reset. I've have this system for 4 years, and has been pretty much bulletproof before this problem started. I didn't think much about having to reset, just thought that it was odd. Two days passed, computer was on 24/7, and I had to hard reset again with a freeze at a blank screen. Then, it started freezing while working at the desktop, no BSOD's no warning, just a hard lockup.
There are no events logged in the event viewer. Power saving is set to presentation (don't turn anything off). I thought that maybe it was my RAM playing up, as about 6 months before the problem started, I added another 1gig of Ram. I have since tested the Ram, removed it, reseated, swapped etc.. the system still freezes. I have purchased another PSU, this did not help. I upgraded the Motherboard BIOS, once again, no avail. I reformatted my C partition, and did a clean install of XP Pro. Using the old drivers that were supplied at the time of purchase. Still freezing. Now, to make things even more interesting. The system _will not_ freeze if I'm playing a game. I play Eve Online, and if I leave this running, the system will stay up. If I alt tab back to the desktop and start moving / copying files, there's a big chance that the system will freeze.
Thinking heat was another factor, I pulled the system apart and gave it a good cleaning. Heat doesn't seem to be an issue, as I have the side of the case off, and the room is airconditioned. I've disabled all the motherboard onboard features, ie. LAN, Audio, RAID, USB, etc.. to no avail once again, the system will still freeze. It might take 20 seconds or as long as 30 minutes before it does, but it'll still do it.
Oh, I also replaced the nVidia 7800 with an ATI 9800 XT, and yes, you guessed it, the system will still freeze. I've run memtest, mbm5, etc.. I've even added brand new sata hard drives (I needed more storage anyway) and done a clean install of XP Pro. So I highly doubt it's a bootsector virus or anything along those lines.
P4 3.00e Prescott (50-55 temp reported via Bios)
ASUS P4C800-E Deluxe Motherboard (Latest Bios Installed)
PSU Thermaletake Butterfly (480 Watts)
XFX nVidia 7800 GT (Lastest Drivers)
2gig (4x512) DDR2 PC3200 Kingston Value Ram (2xPaired)
2x 750gig Western Digital Sata Hard Drives
Everything else is on the motherboard.
Oh yes, the system will still freeze in Safe Mode.
I really tried everything I can think of, besides a motherboard / cpu replacement. I've ordered new parts for a new system I'll be building, as I can't put up with these freezes any longer. But I'd love to find out what is going on, and hopefully keep this system as a back-up.
Any ideas are welcome, once I have the new system built, I'll be able to play about a little more in trying to locate this problem.
Thanks for your time,