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PC Still won't work! Have I tried everything?!

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DragonQ0105

Technical User
Jun 6, 2004
632
GB
**Note: This Post is long because I've tried to make it as detailed as possible.**

Before this all started happening, I couldn't play games without my Deskfan on because the PC would freeze after about 10 minutes.

OK. My Motherboard died on me and would not get past the "Verifying DMI Pool Data..." Stage. Fine. I got a new one. Fine.

Next step - install Windows 98 (I didn't want to try XP yet, as I wanted to just get it up and running first). Worked, until I got to the desktop. If I started opening My Computer etc., after a while I'd get a "User.exe" Error and the program would be closed. Happened in Internet Explorer too.

Also, I noticed that there was a high-pitched whining sound coming from the PC - it happened when I did anything (even if I held the mouse button down). I suspected a faulty PSU. It even happened after I unplugged everything except the basics. Hmm...

Replaced the 235W PSU with a 350W PSU. Yay. Go to install Windows 98 SE (I thought maybe it'd be more stable), and got about 5 different "Error Copying File" Errors. Each one worked afer I pressed "Retry" though. Hmm...weird...

When I get to the "Please type in your Name and Company" Screen (after the 1st reboot), the PC restarts randomly after about 5-20 seconds (whether I typed anything or not). Grrr...

Fine. Try Windows XP. Does its thing where it copies necessary files before the main installation. After this, the PC Reboots (it isn't meant to), and I have to start again. Happens every time. OK, it might be the Hard Drive.

Unplugged the HDD, tried a newer one. Same thing. (All through this, the whining noise is still there).

Now, rebooting is a common PSU error, or memory problem. Well, it can't be either of those. Here's a list of the things I've tried so far:

- Tried Windows 98, 98 SE, XP Pro.
- Tried all possible combinations of the following PC100 SDRAM Sticks: 64MB, 64MB, 256MB, 256MB.
- Tried 2 Hard Drives
- Replaced PSU
- New Motherboard
- Tried both GeForce2 MX400 and On-Board Graphics
- Tried both Optimised Defaults and Fail-Safe Defaults
- Tried taking out PSU to give much greater airflow around the CPU Fan, and tried Deskfan blowing.

Now, it seems to me that the only thing left is a Damaged CPU. Now, before I go and buy a new one (£40), I want to get opinions on whether a Damaged CPU can cause these problems - I don't want to spend more money for it still not to work!

Could this be down to a Damaged CPU?
 
Why yes it did, I forgot to thank everyone....

The new CPU works great, but I'm running it at 1.25GHz (200MHz FSB) rather than 1.67GHz (266MHz FSB) because my RAM is PC100.

It gets to 52C under full load, so I'm reluctant to try it at full speed with asynchronous RAM in case it gets a lot hotter. It was retail though, so the CPU Fan should work fine with my CPU...I will try eventually I guess...
 
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