Opty 165 0551VPMW 2.6Ghz @ 1.41v SuperPI 32m but takes 1.51v for Dual Prime

[barrel]

I can get my Opty to run SuperPi 32m at 2.6GHz @ 1.39v but it takes 1.51v to make it dual prime stable. Is such a big difference in volts normal for SuperPi 32m and Prime both to be stable? I can get it up to 2.77GHz SuperPi 32m @ 1.55v but core0 fails Prime within a minute and I don?t want to push anymore volts through it just to be Prime stable. Anyways I'm not complaining I've got a great DC that cruises at FX60 speeds and I find if its SuperPi 32m stable it?s good enough for me to run 24/7. I'm just a bit baffled at the big discrepancies in volts needed for both SuperPi and Prime to be stable.
http://imagestore.ugbox.net/aview/Opty165_187d6ce3a3a3ce768a20fead

 

[TrevorRC]

Originally posted by: barrel
I can get my Opty to run SuperPi 32m at 2.6GHz @ 1.39v but it takes 1.51v to make it dual prime stable. Is such a big difference in volts normal for SuperPi 32m and Prime both to be stable? I can get it up to 2.77GHz SuperPi 32m @ 1.55v but core0 fails Prime within a minute and I don?t want to push anymore volts through it just to be Prime stable. Anyways I'm not complaining I've got a great DC that cruises at FX60 speeds and I find if its SuperPi 32m stable it?s good enough for me to run 24/7. I'm just a bit baffled at the big discrepancies in volts needed for both SuperPi and Prime to be stable.
http://imagestore.ugbox.net/aview/Opty165_187d6ce3a3a3ce768a20fead

You're not percieving this from the correct standpoint.

You can use 1.39v for SLIGHT stability... you need 1.51v for COMPLETE stability.

There is no discrepancy--one is stable, one isn't. End of story.

 

[atybimf]

Prime95 loves voltage.

 

[jniles]

stability is in the eye of the user

if it does everything that you want without bsod's or lock ups then I suppose it is stable to you

 

[atybimf]

Originally posted by: jniles
stability is in the eye of the user

if it does everything that you want without bsod's or lock ups then I suppose it is stable to you

I'd highly recommend dual prime for a minimum of 12 hours for long-term stability, but you're right, it's in the eye of the user.

 

[nealh]

check your ram timing..the opty are very finicky with them in some cases and you may not need so much more core for Prime95 stablity

 

[barrel]

Originally posted by: TrevorRC


You're not percieving this from the correct standpoint.

You can use 1.39v for SLIGHT stability... you need 1.51v for COMPLETE stability.

There is no discrepancy--one is stable, one isn't. End of story.

Thanks for the replys. I'm running at 2.6Ghz @ 1.39v 24/7 no bsod, lockups, crashes, gaming and folding no problems. Just seems pointless to run 2.6Ghz @ 1.51v 24/7 for COMPLETE stability when all it achieves apart from being Prime stable is to increase temps.