exp(x)

I am almost completely positive the problem is the motherboard. My brother brought his computer when he visited me, so I decided to try his PC3200 ram instead of mine, and the computer still crashed. I then switched the ram back and tried an old PCI (not express) video card that he brought with him without any luck. The only two possible problems now are the CPU and the motherboard. I doubt it's the CPU, but I don't have another one to test with, so I'm going to RMA this board unless someone comes up with some super-fantastic suggestion.

Unfortunately, my computer is still crashing. I have no idea what else to do besides swapping my keyboard/mouse with my other computer (I would be shocked if this was the problem the whole time) and turning off various things in the bios such as sound or networking.

Thanks for the reply; I'll try your suggestions. I am using the 1.0-7676 AMD64 driver from nvidia's website. I see that a new version (1.0-8174) just came out recently, so I'll switch to that now. Your incredibly well-worded advise has left me completely speechless.

Hi, sorry to bump this thread, but I am still having problems even after upgrading my PSU. Lately my crashes have been happening after only around 15 minutes to a half-hour. Just to summarize my situation, I'm going to list what I know is not the problem: Western Digital Raptor 36.7GB SATA (2x in soft-RAID) (these are not the problem because I still had crashes when I tested a single IDE drive instead) BenQ DVD Burner DW1620 (crashes even when this isn't plugged in anymore) NEC Black 1.44MB 3.5" Internal Floppy Drive (crashes even when this isn't plugged in anymore) OCZ Powerstream 520W Power Supply (replacing my 480W PSU with this didn't help) Thermaltake VENUS 12 80mm Ball Cooling Fan/Heatsink (I don't OC, so this keeps the CPU cool enough) Lian Li PC-61 Case (crashes even when I unplug the front USB and switch/led connectors Here's what could be the problem still: LANPARTY UT nF4 SLI-DR (704-2BTA) AMD Athlon 64 3500+ ClawHammer CORSAIR XMS 1GB (2 x 512MB) TWINX1024-3200XLPT ASUS Geforce 6600 256MB PCI-E I was going to put the video card in the first list because my system still crashes after replacing the first one, but I suppose it could be a hardware incompatibility or overheating; I have no other card to test this theory with. I'm pretty sure the RAM and CPU are fine because I ran 48+ hours in memtest and mprime with no errors. So that pretty much leaves the motherboard as the main suspect. I don't want to RMA a good board like I did with my video card, though. What are your thoughts? Is there anything else I should try? Any help is appreciated.

Yes, I did that.

Unfortunately, the system is still crashing despite changing the bios settings.

I ran prime for 24 hours without any failures or warnings. I can't run 3dmark03 because I don't use Windows anymore. Thanks, I'll try those settings and keep my fingers crossed.

Ever since I built my computer several months ago, I have been having random crashes. I used WinXP Pro for a month or two, and that would just suddenly reboot. Now I'm using Ubuntu linux (the 64-bit version), and that just locks up. I've run memtest dozens of cycles and have always passed, so I don't think that's the problem even though I have gathered from these forums that DFI motherboards don't get along with Corsair RAM. I know my hard drives aren't the problem because I tried an old IDE disk I had lying around, and the computer still crashed. I don't think the video card is the problem because I had the first one replaced thinking it was the problem (WinXP used to give errors related to the video card after some of the random crashes). I'm not overheating, so that's not the problem, and I highly doubt my DVD or floppy drives are the problem. That leaves the power supply; I was just reading about how the motherboard needs a native 24-pin PSU. Is this my problem? If it is, could there have been any permanent damage done to my mobo? I would hate to spend money on a new PSU just to have the crashes still. In fact, if that happened I would probably take a baseball bat to my system. This has really gotten on my nerves after all these months. Also, I don't know if this is related, but I get a bios error message (ehci_hcd 0000:00:02.1: BIOS handoff failed (160, 1010001)) when linux is starting up that doesn't appear if I disable USB2.0 support in the bios. Would this indicate something is wrong with my board or is this a known issue?