EPTOn November 21 2011 10:21 Phayze wrote:
81 is too high for first gen i7's.
81 is too high for first gen i7's.
They aren't first gens..... But yes the temp is way too high even though its a prime 95 temp.
Overclocking i7 950 - Page 2
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Boblhead
United States2577 Posts
They aren't first gens..... But yes the temp is way too high even though its a prime 95 temp. | ||
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Cyro
United Kingdom20285 Posts
Finally narrowed crashing down to turbo being enabled, disabled it again, booted back normally... odd, intel turbo boost (1 multiplier) causing like a dozen varying bluescreens, was confused because i just ran 15minutes p95 and couldnt even each welcome screen with the exact same settings. My uncore/qpi is lower now, il run tests to see if it lasts 30 seconds then post back | ||
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Cyro
United Kingdom20285 Posts
On November 21 2011 11:18 Boblhead wrote: They aren't first gens..... But yes the temp is way too high even though its a prime 95 temp. Yes they are | ||
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Cyro
United Kingdom20285 Posts
This is ~77c max p95 in ~18c room temp with hyperthreading disabled... Maybe my cooler is worse than i thought? Its the Xigmatek Dark Knight | ||
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Phayze
Canada2029 Posts
And as for first gen etc, I've always seen lga 1366 classified as first gen, 1155 i7 second gen. It's really irrelevant though. Anyways you even said that the multi's are only unlocked on the extremes, and that is blatantly false information. | ||
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Cyro
United Kingdom20285 Posts
Doesnt uncore have to be kept at >2x RAM clock, or am i mixing it up with something? | ||
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Phayze
Canada2029 Posts
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Boblhead
United States2577 Posts
I consider the 1156 lynnfields to be first gen  | ||
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Cyro
United Kingdom20285 Posts
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Phayze
Canada2029 Posts
http://www.bit-tech.net/hardware/cooling/2011/03/21/xigmatek-dark-knight-review/2 Seems like your cooler does suck quite a bit ;/ Yes uncore is 2x ram clock, if you dont overclock your ram, you leave uncore stock while overclocking(by manually lowering your multiplier, perhaps keep it 1x more than 2xram clock). Dont bother overclocking your ram, find multiplier/bclk combinations that keep you at 1600mhz. Anyways, heres my 3.8ghz profile after 15minutes of p95 + Show Spoiler + ![[image loading]](http://i15.photobucket.com/albums/a376/Modem69/tempsyo.png) I dont see how you need anything remotely close to 1.3V to hit 3.8 Ghz with a d0 950. I dont see how that is possible even with the worst possible binned chip. You must have something set incorrectly. I have never seen any 920/950 not hit 4ghz with ease. | ||
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Cyro
United Kingdom20285 Posts
With 1.25vcore my system wont boot period the end before 1.265 vtt, i bumped it to 1.272 or something for stability as i barely reached welcome screen first time, i eliminated most other factors and that 1 voltage causes all my crashes below that value if it is off auto | ||
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Cyro
United Kingdom20285 Posts
running tests now. The cooler was bundled with the CPU with a 4ghz w/ hyperthreading guarantee, guess im a fool for not looking into it further at the time. | ||
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Phayze
Canada2029 Posts
QPI clock = 36x Uncore x16 (2667) for my 1333ram BCLK 166 (166x23) mem multi: 8.0 (1333mhz ram) 1.22500 bios vcore I think I was wrong, qpi/vtt has to be 0.1V to 0.2V lower. not .01V to .02V Looking at my bios, stock is 1.1875V for vcore and 1.175V for vtt/qpi. So perhaps you qpi/vtt is too high. Make sure you are downclocking your qpi/vtt, this is probably why auto qpi/vtt is letting you boot stable, because you have not lowered that multiplier yet. | ||
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Cyro
United Kingdom20285 Posts
On November 21 2011 11:58 Phayze wrote: Ok, this is my settings. QPI clock = 36x Uncore x16 (2667) for my 1333ram BCLK 166 (166x23) mem multi: 8.0 (1333mhz ram) 1.22500 bios vcore I think I was wrong, qpi/vtt has to be 0.1V to 0.2V lower. not .01V to .02V Looking at my bios, stock is 1.1875V for vcore and 1.175V for vtt/qpi. So perhaps you qpi/vtt is too high. Make sure you are downclocking your qpi/vtt, this is probably why auto qpi/vtt is letting you boot stable, because you have not lowered that multiplier yet. My uncore is ~3k for the same RAM speed, QPI is also the same. I just booted with that vcore and it crashed the moment i started prime95, so i bumped it back to 1.26 and its running fine now, but havnt really made progress. What is your exact qpi/vtt voltage? You didnt mention it. I want to hit as high clock as possible without hyperthreading i think, skyrim wont max cores but it scales almost 1:1 with cpu clock speed increases, 20% OC 20% fps gain etc, someone did a benchmark, and also obviously because hyperthreading is useless to sc2 and seems to mess up with xsplit. I ran on 1.35v for over a year which would pass 90c in prime95 with hyperthreading pretty easily, but it never crashed out because being maxed for 5-10 minutes on 8 threads just never happened in any real world situation, i dont think ~77c is too high to stop at heat-wise for that reason. Il lower the uncore a notch but aside from that should i look into raising bclock? | ||
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Phayze
Canada2029 Posts
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Cyro
United Kingdom20285 Posts
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Phayze
Canada2029 Posts
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Cyro
United Kingdom20285 Posts
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Cyro
United Kingdom20285 Posts
On November 21 2011 12:08 Phayze wrote: 1.185V. I just rebooted and set it on auto and I still had no problems. Perhaps try a memtest? you think that would be relevant? I have no idea how memtest works, it appears to be pre-boot? Anyway im stable now @72c after 10 minutes, one of my case fans was off aparantly | ||
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Phayze
Canada2029 Posts
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