cpu or motherboard or settings? (asus a7m266 w/ 1200 athlon)

codeblue

Junior Member
May 10, 2001
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Building a new system. I installed video card, memory, cpu, heatsink, psu.
It took three reboots to get a post. At that point the bios reset my cpu to 900mhz (9*100mz). I changed it to 1200 (9*133mhz).
This happened twice.
I then replaced the thermal tape with arctic silver thermal between heatsink and cpu. (Idle temp was too high)
Now when I power up I lose the screen at various stages. Sometimes I get as far as the bios setup before the screen goes.
I am still only running the basics - video card, memory, cpu, heatsink, psu.

One further note, I had a hard time with the heatsink installation the first time.

With this in mind - is the cpu damaged, the motherboard or do I have a connection problem(headers)?

I'd appreciate a best guess.