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PC fails Prime95 at stock

You could also try switching to 2T command rate in the bios if you currently have it at 1T. My system becomes unstable at 1T for some unknown reason since I put an X2 into it a few months ago. Updating the bios helped a bit, especially with the Orthos errors but I still got these weird errors whilst running 3dmark06. I currently have it at 2T and it is completely stable.
 
I've reseated the CPU cooler the right way round and that has helped with the temps - down to 53 degrees on large FFTs in Prime95 so far better!

Unfortunately it still doesn't seem stable. I've tried it at 1.4V core and 2.2V memory but it still fell over. I left the machine with it going at 1.45V core and 2.2V memory but I came back an hour later to find that it had rebooted!

I'm currently watching it at 1.45V core and 2.2V memory to see what happens. If it still doesn't work then I'll try the 2T suggestion

EDIT: Just had a thought. Would an overheating northbridge cause any of these problems? Unfortunately the MSI board is pretty poorly designed in this area and it only has a thin heatsink over the northbridge (no fan or heatpipe) which gets very hot

EDIT: Nope, just fallen over again. I'll reboot with 2T timings and give that a go
 
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Hope not! It only hit 80 degrees once but it did live around 70-75 degrees at one time which is too hot

It currently seems to be far more stable at 2T though - thanks again for the suggestion.

Prime95 has been running Large FFTs for over an hour now (far longer than before - touch wood!) without failing at 1.45V core 2.2V memory, 4-4-4-12 2T. The CPU temperature has stabilised at 56 degrees
 
An update - the Large FFT test has been running for 2 hours 30 minutes without falling over so it looks like the 2T has fixed it :D

Thanks for all of your replies
 
adslegend said:
I wouldn't worry - Prime95 is POS and badly coded.
Click to expand...

that's the standard reply from users who want to disregard reality.

like "these mirrors are fat mirrors" no.....you're just fat.
 
are you suppying too high a VDImm to your RAM ?

Looking at other threads the Geil don't seem to like above 2.1V.

Just a suggestion - higher VDimm doesn't always mean extra stability - for instance my Corsair RAM does not like above 1.95V.

Mark.
 
ajgoodfellow said:
An update - the Large FFT test has been running for 2 hours 30 minutes without falling over so it looks like the 2T has fixed it :D

Thanks for all of your replies
Click to expand...

Glad you've got it working. Now you can try and focus on trying to get 1T working... if you can! :D

Like Buckster says, some memory actually likes less volts. :)

I don't know if the mobo is like the DFI one, where the memory slots play a big part on how the system runs. Perhaps try swapping DIMMS around and stuff. :)

Have fun!
 
I wouldn't have thought the ram voltage would be a problem. Mine requires 2.1v to run properly (Geil website) but doesn't like more than 2.3v. 2.2 shouldn't be a big deal. Good luck mate
 
Hi!

Thanks for your replies - sorry for my late response!

2.2V could well be a little high as I've now found out the problem. I wouldn't like to reduce it below 2.15V though as that's the stock voltage for my memory IIRC

Not sure about the memory slot issue though - I'll definitely give that a go though as that could help
 
marscay said:
that's the standard reply from users who want to disregard reality.

like "these mirrors are fat mirrors" no.....you're just fat.
Click to expand...

Whilst I was half-cut when I said that I'll still stick by it from personal experience.

Example - My old rig would fail Prime95 at stock speeds, in literally a few seconds. I never had any stability problems and it was Folding too. Overclocked it by 700 MHz on the CPU and adjusted stuff accordingly. Still stable, but couldn't be arsed to sod about with Prime95 again. Then I read on forums about updates to bugs that Prime95 has so I think that answered my question.

I do use Orthos since though since this seems to be more reliable.
 
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