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Computer alarm went off while sleeping, then shuts down intermittently
I have a HP XW8400, Win 7 x64 Ultimate, 8G Fully Buffered memory.
Per instructions of my "computer guy", I leave the computer on almost always. I was awaken at 4AM by the "alarm" on the computer, and a black screen with error codes 922, 923 and 927. See attached picture. Having experienced this error before (maybe a year ago) I shut the computer down, carefully cleaned the contacts on the video card, card reader and memory. I also removed the Hauppauge WinTV 1600 card, as I hadn't used that accessory in years.
Since reboot, the computer would run fine for about an hour or so, then it would freeze up, accepting no input from keyboard. A few seconds later mouse input would not be accepted, and then the BSOD with error code 0x000000F4. This procedure went on three or four times, but I was able to do some work in the meantime. My computer tech called back and said I should try a system restore. I did that, but now I am unable to boot at all. I tried several times, one time getting a BSOD - type screen, but the characters were unintelligible. It was acting as if someone had shrunk a screen full of type horizontally, "squishing" the letters.
As my computer tech is unavailable, I need to attempt to fix the problem myself, as I use this computer about 12 hours or more daily.
I have listed my complete build in my profile, if any information is relevant.
I have followed all directions I believe, but I am new to this forum. Hope you can help.
Thanks
Greg