Computer dies when logging into an OS

Aug 11, 2008
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So I left my computer on and went outside for about 10 minutes, when I came back the computer had shut off and wouldn't turn on again until I had reset the CMOS. After that it boots normally until it encounters the Welcome screen on Win7, right when its about to pass it everything stops working and the screen looses the signal. This also happens if I try to boot using a Fedora Live CD, right after the loading is complete everything stops working and only the fans keep spinning.

Booting into safe mode is fine and everything works there, I tried uninstalling the video card driver but had no luck with that. My computer was running OCed when this happened but I had stress tested it and it was stable and temps were fine. I also ran Prime95 for a while in Safe Mode and everything worked fine.

So if you have any ideas to what I could try they would be much appreciated.

My computer consists of:

AMD Phenom II 955 BE
MSI 770-C45 Motherboard
Ati Radeon HD 5870 1GB
4GB G.Skill 10600 DDR3
1x IDE HDD and 3x Sata HDD
700W Tagan BZ Series PSU
 
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Aug 11, 2008
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Yes safe mode worked with out a problem, but my computer stopped turning on at all now so I suspect the PSU is dead. Also the Restart button and the Power button don't work after everything dies.

Edit: Tried using another PSU and get the same results, although it is only a 430W but I thought it would at least get me into Windows while just running the bare minimum, MB, CPU, GPU and OS HDD.
 
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Aug 11, 2008
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Ok so now i got through that screen and into windows using another HDD with installed Win7 but after running Win for about 30secs the same thing happens.. I have no idea what could be failing :/
 

denis280

Diamond Member
Jan 16, 2011
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LOOk for loose wires.on the motherboard.unplug replug.if that dont work you should start looking for a mobo.
 
Aug 11, 2008
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Yeah i have come to the conclusion that the motherboard is the problem so im switching over to i5 2500 i got for a good price and an asus MB