Constant Freezes/Reboots, but no BSoD...

I've been having frequent freezes from start-up to about 10-20 minutes afterward. On a rare occasion I can avoid a crash for over 30 minutes, but a crash is inevitable.

I haven't been fortunate enough to get a BSOD, and my minidump file is over 2 days old (don't remember seeing any BSoD then either; Must have been really quick), but I could zip it up if you think it may still be helpful.

This is a brand new build (details listed on my control panel) with Windows 7 Home Premium clean installed and fully updated. Any ideas on how to get some debugging info or ideas on what may be causing problems will be extremely appreciated. Thanks

*Edit - Thanks for responding, CarlTR6. I had decided to uninstall my Norton IS 2010 for a bit, and also removed my Radeon 5770 (using HD4200 onboard now)... With some success. Though it could easily be coincidence, I managed to have 2.5 hrs of UpTime before the same old freeze happened. At least this time it restarted with only one false start and "Startup Repair" run.

The only critical msg I'm getting in Event Viewer is "EVENTID 41, task 63.... Kernel-Power" which I've attached a txt copy of. This event has happened a BUNCH of times, and seems to be about right to coincide with my freezes. Tried the automated help for it, and got nothing but an automated shrug. Thanks again for any help.

Do you have Action Center in your Home Premium edition? If so, have you looked at maintenance for any messages? Have you checked Event Viewer for any errors?

I had the same symptoms and the above pointed to a graphics problem. However Device Manager showed the graphics card was functioning properly. It did turn out to be the graphics card.

A bad power supply can also cause these symptoms. I am interested to see what you find out.

*Correction Edit, see below posts. Even if the video card IS shot, then there is also something else wrong.

Well, it appears that it WAS (not only) my new video card. (But,) I haven't had a freeze all day long and only once since switching to solely onboard video. (Likely WAS a coincidence, as using only the onboard video began doing the exact same crashing behavior.)

I'll try to reinstall the HD 5770 tomorrow and with new/other drivers and hope for the best. Worst case, I'll have to RMA the bugger. I'll try and remember to report back, as these types of problems are all over the Net with very few solutions to be found.