Machine Check Exception

Associate
Joined
1 May 2007
Posts
7
Hi all,

I occasionally get a 'blue screen of death' with a message about a 'Machine Check Exception' on my reasonably new rig which I built myself last Autumn (bundled parts from Overclockers UK):

PowerColor ATI Radeon X1950 Pro Extreme
AMD Athlon 64 3700+ San Diego
Asus A8N-SLi Premium nForce4 SLi (Socket 939) PCI-Express Mobo
2GB Corsair DDR XMS PC3200 Dual Channel RAM
XP Pro

I have never been present when this has happened. The other night for instance, I left it performing an AVG scan, when I returned three hours later; the BSOD with machine check exception message was there. There doesn't appear to be any pattern to this happening, only that the PC has been on for at least a couple of hours.

Last night I left the Prime95 stress test running for around 4 hours, torturing the CPU & Memory and no failures or BSOD!

I have googled the error and found a load of stuff, seems it may be a hardware fault, possibly due to overheating. What I'm unsure of is what to do to find out exactly what's going wrong. All the kit is still under warranty, so I would like to find the fault & return the part if possible.

Has anyone got any ideas?

Atholl
 
It's most likely the PSU then.

What is the brand and if you can, what is the ampage offered on +12V rail?

Do you have another PSU that you can test?
 
I'm not overclocking. I did suspect when I bought it that it was sufficient for my new system, but only just. Can you recommend a PSU that will cover me? I have two ide HD's a DVD writer, a wireless card and a glow in the dark Saitek keyboard in addition to the hardware stated above.
 
How much would you like to spend? Do you need modular cable?

A decent 450W-500W is more than enough for your setup:

The best one highly recommended in this forum, modular:
http://www.overclockers.co.uk/showproduct.php?prodid=CA-005-CS&groupid=701&catid=123&subcat=823

Good value for money but non-modular:
http://www.overclockers.co.uk/showproduct.php?prodid=CA-062-AN&groupid=701&catid=123&subcat=103

http://www.overclockers.co.uk/showproduct.php?prodid=CA-023-EN&groupid=701&catid=123&subcat=111

http://www.overclockers.co.uk/showproduct.php?prodid=CA-005-SK&groupid=701&catid=123&subcat=484

http://www.overclockers.co.uk/showproduct.php?prodid=CA-012-TG&groupid=701&catid=123&subcat=393

And no don't go for a Hiper just to be sure - there were a lot of hipers failed a while ago, not sure if the quality has been improved with the recent batch.
 
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