Computer keeps restarting!?!?!

[Josiah 0]

I was playing counterstrike and when I exited, it locked up. I restarted it, started up gamespy, and walked away for a second. When I came back it was restarting. I typed my password and before I could do anything it restarted again. Now it wont even POST. Every now and then it will make it to the loading windows screen. Also sometimes the harddrives don't even spin up. I have removed sound and LAN card. I tried clearing the c-mos, i tried removing the battery, I replaced the power suppy with a known good one.

 

Well I unplugged everything. Checked the contact between the CPU and the hsf. I put the CPU in the second slot and put everything back together and it has worked fine for about a month, until last night when it started again. One interesting note is that the interval that it stays on before restart seems to get shorter. Now it won't stay on more than a few minutes before it reboots. That is if it even starts up.

 

OK these are the things that I have tried and it did not fix anything:

1) Replace power supply

2) Replace RAM

3) Disconnect everything and reconnect.

4) Just let the damn thing rest for a while

5) Turn off "automatically restart on errors"

 

 

SPECS:

Tyan Tiger 100 (2.2 bios I think)

SINGLE P III 450 (was overclocked to 504 @ 112 FSB)

2x Micron 256MB

Generic floppy drive

12 gig Quantum fireball

60 gig Western Digital

TDK 24x10x40 CD-RW

Voodoo 3 3000

Realtek NIC

Aureal Vortex 1

Windows XP

 

So any advice/suggestions would be appreciated.

[insaNity 0]

The causes I've seen for this type of problem:

 

-CPU is getting to hot, bios setting is to turn off the system on overheat.

 

-BIOS setting for CPU temperature is too low.

 

-Faulty thermometer

 

-Faulty CPU or RAM

 

-Loose connectors on Mainboard

 

maybe (but be very careful) you could increase the "dangerous" temperature setting to see if this is it?

[Brian Frank 0]

Might also wanna try setting the CPU back to the defaults too. Tyan doesn't really make overclocking boards, and that may be where you're running into trouble.