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So what is it about SMP folding that really pushes a CPU?

post #1 of 8
Thread Starter 
All of my previous and current attempts to get my 940 to fold have been ups and downs. But mostly just finding a stable voltage it will play fine with. But what really makes SMP work so much harder compared to the more common stress tests out there?
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post #2 of 8
If you're having ups and downs while folding. Then that will mean that your OC is unstable and you might need to do some tweaking.

SMP work isn't much harder on the CPU. My temps run about ~45C while folding. Where as running Intel Burn Test or OCCT I am hitting ~57C. So that tells me that folding isn't as intense as IBT or OCCT.
post #3 of 8
Thread Starter 
Quote:
Originally Posted by mbudden;11695396 
If you're having ups and downs while folding. Then that will mean that your OC is unstable and you might need to do some tweaking.

SMP work isn't much harder on the CPU. My temps run about ~45C while folding. Where as running Intel Burn Test or OCCT I am hitting ~57C. So that tells me that folding isn't as intense as IBT or OCCT.

My CPU is only unstable from folding though. Doing anything else my PC has always been stable at 3.3ghz on stock voltage and 3.5ghz at 1.425v. Folding is the only thing that's caused problems.
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post #4 of 8
Try bringing up the voltage just a little bit more and see if it stops giving you Unstable Machine errors.

I'm telling you, I ran my OC @ 4Ghz stable all day. But when I ran F@H clients. It failed, had to up my voltage just a little bit more.
post #5 of 8
Double post.
post #6 of 8
Thread Starter 
Quote:
Originally Posted by mbudden;11695503 
Try bringing up the voltage just a little bit more and see if it stops giving you Unstable Machine errors.

I'm telling you, I ran my OC @ 4Ghz stable all day. But when I ran F@H clients. It failed, had to up my voltage just a little bit more.

Oh I already have. I thought 1.45v was stable. It was running fine for a few days but today it has given me errors twice. So I bumped it up to 1.46v.

Everyone I've seen reply to posts about errors and overclocking their CPU's say SMP folding is so much more taxing so I'm wondering why.
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post #7 of 8
Cause it pushes your CPU to its limit by folding proteins. Same way if you try rendering some big scenes will show you if you are truly stable or not.
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post #8 of 8
All I could find:
Quote:
Originally Posted by bruce 
When F@h is running on an overclocked system, you may find that the settings you thought were stable, may need to be tweaked further. The reason is that F@h uses optimizations which pushes the system a bit harder than most other burn-in tests.
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