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The ULTIMATE Sandy Bridge OC Guide + P67A-UD7 Performance Review - Page 53

post #521 of 713
wasnt satisfied with 1.496-1.504v under load and decided to try other options. now i`m running +0.130 offset with mid lvl of LLC ("High" for asus mobo). under load CPU-Z shows 1.480-1.488v with rare 1.472v
curious what CPU current capability option does (can change from 100% to 140%). i should ask it in asus mobo threads but gigabyte and other motherboards have such option too (ofc name differ along with the numbers) so how can it help? it only makes CPU temps higher as i see
post #522 of 713
Anyone know if a 6990 is compatible with the chipset block for this motherboard? EK states that the PCI-E anchor of some cards will hit the block in the first slot. I know a GTX 580 won't fit.
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post #523 of 713
Quote:
Originally Posted by catcherintherye View Post
Anyone know if a 6990 is compatible with the chipset block for this motherboard? EK states that the PCI-E anchor of some cards will hit the block in the first slot. I know a GTX 580 won't fit.
On the MSI P67A-UD7/UD7-B3?

I'm using a GTX 580 on mine just fine, unless you are talking about reference design?
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post #524 of 713
Quote:
Originally Posted by Hoodcom View Post
On the MSI P67A-UD7/UD7-B3?

I'm using a GTX 580 on mine just fine, unless you are talking about reference design?
Gigabyte. I'm referring to the EK waterblock, not the stock chipset heatsink.

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post #525 of 713
Quote:
Originally Posted by catcherintherye View Post
Gigabyte. I'm referring to the EK waterblock, not the stock chipset heatsink.
Oh! Okay, my bad.
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post #526 of 713
Thread Starter 
Quote:
Originally Posted by Duplicated View Post
Sin0822,

I just followed your guide with my z68x-ud3-b3 motherboard. My main problem is that my 2600K couldn't even stay stable at x40 multiplier. I got a BSOD after I tried to start Intel Burn Test.

Yes, I leave the Vcore on auto, but BSOD with x40 multiplier? I feel like either my CPU fails, or I applied TIM incorrectly because my idle temp @ stock speed is around 36 celsius almost all the time (I use shin-etsu x23-7783d btw). Yet, when I push the multiplier up to x47, along with manually adjusting the Vcore to 1.450, I could run IBT without crashing, but the temp is in the 90s.

With Vcore on auto:
Couldn't boot into BIOS at x52
Couldn't boot into Windows at x48

Should I just RMA it? lol...

BIOS Settings (roughly):
Internal CPU PLL Overvoltage & Ratio Change in OS enable
C1E, EIST, C3, C6 States, CPU Thermal Monitor all disable
QPI/Vtt voltage auto
Didn't touch BCLK at all

Edit: I don't really know what is the cause of my problem right now. Just revert the BIOS back to optimize factory settings, bumped it up to x45, tried IBT, and temp hovered around 90s right as I started Stress test maximize/8 threads/5 runs. Quite disappointing for a 2600K.
hey man if you can change the Vcore and have a stable OC that is great, that is what you want. I just say see how high it goes on auto b/c its different for every CPU, some are great with that, others suck. Your sucks at that, but if you can get it stable at 47x with that vcore that is great, but those temps are way too high, 90c is unacceptable.

Quote:
Originally Posted by Wogga View Post
wasnt satisfied with 1.496-1.504v under load and decided to try other options. now i`m running +0.130 offset with mid lvl of LLC ("High" for asus mobo). under load CPU-Z shows 1.480-1.488v with rare 1.472v
curious what CPU current capability option does (can change from 100% to 140%). i should ask it in asus mobo threads but gigabyte and other motherboards have such option too (ofc name differ along with the numbers) so how can it help? it only makes CPU temps higher as i see
Hey that is just part of Turbo mode, if you OC without Turbo mode then it doesn't apply on the GB boards. Id would enable it, it will just allow for burst of high current, which might help.
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post #527 of 713
Hi Sin
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post #528 of 713
Quote:
Originally Posted by kskwerl View Post
Hi Sin
Sin if you could take a look at this it would be greatly appreciated

http://www.overclock.net/intel-gener...l#post14323925
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post #529 of 713
Ok so i started over with the new f8 bios, which has proven to be more stable and less "buggy."

this time i started off at 47x, 1.375vcore (bios) level 7 llc, 1.05v vtt/qpi, dram 1.7v (2133 non-xmp w/ manual 9-11-9-27-50-1t). c1e/cstates/eist/pll overvolt etc disabled, bclk clock enabled but left at the default 1000... ran intel burn test for 10 passes on very high- 115gflops average, consistent and stable. cinebench 9.12pts. load voltage is 1.416v. on idle it sits at 1.452v, max spike 1.476v. lowest temp on core 1 69c, highest temp core 3 72c.

then i bumped it up to 48x using the same settings- still stable except load voltage changed to 1.44v. all other readings were the same as above.
100mhz increase gave me 9.45pts cinebench. lowest temp 73c, highest temp 81c.

at 49x, it required 1.49v (bios). 1.08v vtt/qpi.
1.488-1.5v load, 1.512v idle, 1.452v min, 1.512v max. lowest temp 82c highest temp 91c. 9.58pts cinebench.

and im thinking thats as far as i should go with current cooling for the sake of getting accurate readings/results from here on in- even though ive done 51x on previous bios and seen highest temp 70c max in games and anything else as long as i didnt use prime/intelburn/linx. soon as i did it would freeze upon reaching max temp so i guess it stops there.

soon as i turned on pll overvolt for 5ghz, i hit a wall and bumping up vcore/qpi didn't seem to help, either that or the voltage jump for 50x was/is too high. though my initial thoughts were that perhaps i needed to change LLC so pll overvolt on would work better, its something ill need to come back to in future once water cooling is involved. the noctua nh d14 has done well so far.

thanks for all the replies, i wonder if there's something you could recommend to help me keep my temps down/reach 5ghz? lowering ram frequency didn't seem to help temps, given vtt/qpi is already quite low!
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post #530 of 713
Can someone let me know if I have an absolutely awful chip or if something else needs to be looked at?

Just running off vcore and OC, the only way I can get my 2500 stable at 44x is to set vcore to 4.15 which will read 1.380 in the MIT page. Loading optimized setting defaults my vcore to 1.26, seems much higher than a lot of the ones I've seen.

Furthermore, HW Monitor is consistently giving a vcore in the low 1.3's, usually 1.30-1.32 regardless of what BIOS says.
Edited by Wek - 7/27/11 at 3:04am
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