[Solved] Reboot loop

I have a computer with a P4MST890 Pentium D 3.0GHz, 9800GTX+ and a 500GB SATA. When I put Windows 7 on it the first time it worked perfect and I restarted it a few times and it loaded each time but the next morning I turned it on and it would fall into a reboot loop. If I remove the Graphics card and use the onboard card it works fine. This has really puzzled me on what could make it do that because it worked the first time with it in there.

Any help would be great Thanks.

Try booting in Safe Mode, removing the graphics card in Device Manager and letting it reinstall when you reboot. (What graphics card is it, as a matter of interest?)

In that case, if you can boot in Safe Mode (or you could try VGA mode) I would download the latest generic NVidia driver from their website and install that.

You get into VGA mode by pressing F8 during boot and choosing it from the menu (it will still output via the DVI connector). But, if you're not getting that far that's not going to work. I'm beginning to wonder if your video card has a hardware fault; I'm not aware of anything else that would cause a reboot without even trying to boot Windows.

You could always remove the video card, boot, remove the drivers, shutdown and put the card back in to see what happens.

That would seem to eliminate it as the cause of the problem! Try my other suggestion.

Is this with the video card, or onboard video?

It sounds like a driver.

Did you ever try safe mode?

Yes, f8 is the access key to get the safe mode menu.

Try plugging the video card into the PCIe slot. Don't plug in the power, and use the onboard video.
results?

then,

Same setup, but connect the PCIe power connector.
results?

Yes, use the onboard video for both tests.

Look for something similar to this in the 'advanced chipset' menu.
http://www.pcstats.com/articleimag [...] _BIOS1.jpg

Have you checked to see if there's a BIOS update?

If it didn't work in XP, I would say for sure it's the hardware.

I'm baffled.

I had a loop problem with a sound card v. onboard sound. I fixed it by disabling the onboard sound. I would try disabling the onboard graphics in BIOS then uninstalling the graphics card in Device Manager. Reboot and let windows ask for drivers. Fingers crossed.

Ya when I put the graphics card in I get no video on the onboard card. I don't think there is a way to disable it in the bios anyway. Could it be that it is just both the graphics card and the mobo? Like its not a good combination maybe. So if I bought a new mobo do you think Win 7 would work with the graphics card?

I may just have to get a new computer. O well. It may be time for an upgrade.... anyway thanks for the help.

Best answer selected by Stratego51.

This topic has been closed by Mousemonkey