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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 678

post #6771 of 67227
Quote:
Originally Posted by Olafthewimpy View Post

I've seen it fluctuate to around 1.39, but it seems to only hit that when a core changes to a new workload. As for LLC and such, I'm on a sabertooth 990FX.
My LLC is on the extreme setting. I'll screenshot BIOS when I get home.

Also, a point of interest: despite my chip being extremely voltage conservative, I can put voltage all the way to 1.5 and 5Ghz will not be stable no matter what multiplier/fsb combo I use, etc.

This article here is actually kind of helpful. It's an Asus guide on Sandy Bridge Overclocking, which explains some of the settings. (not all of them are similar to AMD though)
I've contacted Asus, to see if they are working on a Guide for Piledriver or the 990FX Boards. It would be nice to see some specialized settings on the Asus boards to increase Piledriver Stability at high Overclocks like they did for Sandy/Ivy Bridge.
Quote:
A D2 sample with peak multiplier of 44 with PPL option enabled and corresponding voltage applied we have seen results of a stable 50 multiplier now able to post / boot and be held. ( previously without the PLL value the same CPU would failed to compelte a boot with a any multi exceeding 45 )
post #6772 of 67227
Quote:
Originally Posted by Olafthewimpy View Post

I've seen it fluctuate to around 1.39, but it seems to only hit that when a core changes to a new workload. As for LLC and such, I'm on a sabertooth 990FX.
My LLC is on the extreme setting. I'll screenshot BIOS when I get home.

Also, a point of interest: despite my chip being extremely voltage conservative, I can put voltage all the way to 1.5 and 5Ghz will not be stable no matter what multiplier/fsb combo I use, etc.

YOu've still got agreat chip there. IM actually quite envious haha i tried your vcore for 4,8ghz and i fail everytime lol

Have you tried further up towards 1.55 for 5ghz?
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post #6773 of 67227
Quote:
Originally Posted by gertruude View Post

YOu've still got agreat chip there. IM actually quite envious haha i tried your vcore for
4,8ghz and i fail everytime lol

Have you tried further up towards 1.55 for 5ghz?

As soon as I break past 1.42V, the Silver Arrow gets overwhelmed, I think. Temps for 1.4 hit about 53C under full load for 24hrs. One voltage bump above that and it's at 62C in minutes and I stop the test. It's just a cooling issue, possibly incentive to reapply paste. I'm just wary of using IC Diamond multiple times in such a short period, I installed the chip about a week ago (replaced a dreadful 955 X4 that couldn't hit 4ghz with 1.55). The damage to the IHS scares me.
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post #6774 of 67227
Quote:
Originally Posted by hatrix216 View Post

I tried downloading the link that was provided for them in the thread but I see no difference in Gflops or result times. Still get around 44.
Will try doing.
http://valid.canardpc.com/2645697

I don't know if it's related, but I noticed when trying to bump my oc a little higher that it SCORES LOWER at it is hitting the cusp of instability. My GFLOPS dropped from 80's to 70's just trying to go a little higher than 4.8.

@gertruude, I was just curious what GFLOPS I would get, and wanted to try it for stress testing. I like that it seems to identify problems more quickly. Normally I use OCCT because I like the data that it collects.
post #6775 of 67227
Quote:
Originally Posted by Olafthewimpy View Post

As soon as I break past 1.42V, the Silver Arrow gets overwhelmed, I think. Temps for 1.4 hit about 53C under full load for 24hrs. One voltage bump above that and it's at 62C in minutes and I stop the test. It's just a cooling issue, possibly incentive to reapply paste. I'm just wary of using IC Diamond multiple times in such a short period, I installed the chip about a week ago (replaced a dreadful 955 X4 that couldn't hit 4ghz with 1.55). The damage to the IHS scares me.
Have you tried OCCT?
The numbers you are getting are really good, but I've seen other instances where people thought they were stable at a high speed- low voltage only to figure out later that it was downclocking during stressing because of heat. OCCT will graph load , voltage temp, and speed just to make sure smile.gif
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post #6776 of 67227
Quote:
Originally Posted by cssorkinman View Post

Have you tried OCCT?
The numbers you are getting are really good, but I've seen other instances where people thought they were stable at a high speed- low voltage only to figure out later that it was downclocking during stressing because of heat. OCCT will graph load , voltage temp, and speed just to make sure smile.gif

Sure, I'll add it to my list of tests and such, thanks. tongue.gif
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post #6777 of 67227
Quote:
Originally Posted by Olafthewimpy View Post

Sure, I'll add it to my list of tests and such, thanks. tongue.gif
Great!
Heat problems would sure explain why a chip that does so well on low volts isn't able to hit over 5 ghz. Maybe OCCT will find a thermal wall we can knock down with better cooling and get that little dandy up to 5 GHz + thumb.gif
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post #6778 of 67227
Quote:
Originally Posted by Olafthewimpy View Post

As soon as I break past 1.42V, the Silver Arrow gets overwhelmed, I think. Temps for 1.4 hit about 53C under full load for 24hrs. One voltage bump above that and it's at 62C in minutes and I stop the test. It's just a cooling issue, possibly incentive to reapply paste. I'm just wary of using IC Diamond multiple times in such a short period, I installed the chip about a week ago (replaced a dreadful 955 X4 that couldn't hit 4ghz with 1.55). The damage to the IHS scares me.

It should be alright lol but no biggy if you decide against it. If you do though DONT forget the batch number biggrin.gif I was testing 3 different pastes at one time so had to reseat 8-10 times lol. Other than a corner coming up a tiny bit no harm was done.

53C for 1.4 is bloody good. Thats better than my noctua DH14 i had before the loop
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post #6779 of 67227
post #6780 of 67227
I don't understand. No matter what version of IBT I download, as I've downloaded multiple "AMD" ones linked in this thread, I still always get 44 GFlops.


Quote:
Originally Posted by pCkOpAtuS View Post


Your temperatures are way to high.
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