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Haswell Overclocking Guide [With Statistics] - Page 1163

post #11621 of 19569
Quote:
Originally Posted by Horsemama1956 View Post

I finally activated my copy of Windows 8, but I need +.07 Vcore for it to be stable compared to Windows 7. I know Win 8 is finicky with overclocks, but that's odd.

For me when switching between win7 & win8 I have to bump the memory voltage, was running in 7 for hours no issue, boot up same settings on 8 & BSOD until I bumped up the vdimm.
    
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post #11622 of 19569
Could be that Windows 8 is taking more advantage of avx and other simd instructions. Or more aggressive use of power states.
Edited by GeneO - 4/4/14 at 11:44am
post #11623 of 19569
Currently sitting at 4.6 @ 1.345v. LLC extreme with stock cache/volts. 50 loop IBT Max and 7-ish hours AIDA64 stable.

I tried pushing 4.7 but this thing needs 1.400v to be IBT stable. Haven't tried prime.
post #11624 of 19569
How does XTU compare to IBT, prime, x264 and AIDA64? I find that it is easy for my proc to pass IBT, x264 and AIDA64 but has lots of trouble with prime 95.
post #11625 of 19569
Quote:
Originally Posted by treome View Post

How does XTU compare to IBT, prime, x264 and AIDA64? I find that it is easy for my proc to pass IBT, x264 and AIDA64 but has lots of trouble with prime 95.

The XTU stress test is pretty weak, 2 minutes of the benchmark is tougher to pass than hours of the stress test.
I used the XTU bench to start & adjusted until it passed, then ran a few loops of IBT max memory & 20 loops of x264, XTU bench stable was stable for those, I don't use prime95 but that could be tougher yet for a 24 hour pass.
    
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post #11626 of 19569
Yup, like first thing I noticed in Windows 8 was lower performance in LoL which I thought was odd but it was still 100-250+ and then I got an error and my computer restarted. After adjusting vcore I noticed LoL was hitting 3-400 like usual and Assassin Creed 4 played quite a bit smoother.

I avoided activating my copy of Win 8 like 4 times because I was getting slightly odd performance(like 58.9 fps when using vsync which resulted in stutter), but now it seems likely I just needed to make small adjustments. Glad I waited anyway since I switched from my 6300 to the 4670k
Edited by Horsemama1956 - 4/4/14 at 1:35pm
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post #11627 of 19569
Username: treome
CPU Model: 4770k
Core Multiplier: x47
CPU VID: 1.405v 1.410v
Vcore: 1.428v
Uncore Multiplier: x34
Uncore Voltage: Auto
Cooling Solution: Custom Water
Stability Test: IBT Very High 10 Loop
Batch Number: Malay L312B528
Ram Speed: 1600 @ 11-11-11-28
Ram Voltage: 1.5v (stock)
Input Voltage: 1.20v 2.00v
LLC Setting: Extreme
Motherboard: Z87-UD3H


Edited by treome - 4/4/14 at 7:40pm
post #11628 of 19569
Quote:
Originally Posted by treome View Post

Username: treome
CPU Model: 4770k
Core Multiplier: x47
CPU VID: 1.405v
Vcore: 1.428v
Uncore Multiplier: x34
Uncore Voltage: Auto
Cooling Solution: Custom Water
Stability Test: IBT Very High 10 Loop
Batch Number: Malay L312B528
Ram Speed: 1600 @ 11-11-11-28
Ram Voltage: 1.5v (stock)
Input Voltage: 1.20v
LLC Setting: Extreme
Motherboard: Z87-UD3H


Your Input voltage is wrong (should be ~1.8 - 2.1)

it's called VRIN
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post #11629 of 19569
Quote:
Originally Posted by Cyro999 View Post

Your Input voltage is wrong (should be ~1.8 - 2.1)

it's called VRIN

Whoops..

Username: treome
CPU Model: 4770k
Core Multiplier: x47
CPU VID: 1.410v
Vcore: 1.428v
Uncore Multiplier: x34
Uncore Voltage: Auto
Cooling Solution: Custom Water
Stability Test: IBT Very High 10 Loop
Batch Number: Malay L312B528
Ram Speed: 1600 @ 11-11-11-28
Ram Voltage: 1.5v (stock)
Input Voltage: 2.00v
LLC Setting: Extreme
Motherboard: Z87-UD3H
post #11630 of 19569
Tried up to 1.450v for 4.8 but BSOD IBT High 10 Loop
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