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Does my 8150 suck?

post #1 of 19
Thread Starter 
Since I finally got rid of my H60 I've been trying to OC my 8150 and for the life of me I can't get this CPU to decently OC, barely stable at even 4.4ghz and it enrages me that most people seem to get better clocks on an 8120 sometimes at lower voltages. I've read or skimmed the most common guides across the internet and on OCN. I've been playing around with computers since like 2007 and have never had to ask a question on the forum since google or youtube university covers pretty much everything. This is the first piece of hardware in my life to give me an aneurysm

Everything I've tried:

Currently kept undervolted at 1.264 (1.280 regular LLC) stable @ 4gz 38c no throttling

Assume C1E, C6, and C&Q is turned off unless stated. All voltages are based off max load in CPU-Z not bios.

Small voltage bumps keeps it stable all the way to 4.3gz
1.374 @ 4.32 fail
1.440 @ 4.33 throttle
1.408 @ 4.33 throttle & fail
1.408 +.25 CPU NB @ 4.43, throttling begins few minutes in temp 48c clock falls to 4.22 after flicking Turbo in AOD
1.440 +.25 CPU NB @ 4.53 throttling begins after a few minutes again, temp seems to fluctuate between 45 and 51c because of throttling down to 13.5x (2700) at 51c, max temp 51c (all cores throttled to 45c @2.7gz) non bsod crash while attempting to change TBC in AOD (worth noting trying to do while primed)
1.440 +.50 NB 2.6gz (stock) @ 4.53 immediate BSOD
1.440 +.75 NB (2.6gz) @ 4.53, temps hit 52c max, throttling at 51c down to 13.5 again.. Prime stopped, TBC in AOD enabled and disabled, clocks reset to 4.53, crash (not bsod) immediately after restarting prime.

1.440 +.75 NB (2.6gz) @ 4.53 C&Q C1E C6 Re-enabled. Aero horrendously unstable
Back down to 1.408 +.75NB (2.6gz) @ 4.43 Aero still broked. Core fails within 2 minutes. C&Q C1E C6 enabled
Back up to 1.440 + .75 NB @ 4.53. C&Q only enabled, opened COD4, BSOD

RAM downclocked to 1333mhz. Aero still broken, 1.444v same NB as always same clock as previous, C&Q disabled again, unstable.

CPU NB & RAM normalized, LLC set to ultra high from extreme, Vcore bumped up. Aero stable, reported as 1.504 in CPU-z again, As usual everything throttles down to 2.7gz, temps hitting 53c. Open cod, crash.
4.4gz @ 1.376 auto LLC for chuckles. Core failure within a minute.
4.5gz @ 1.376 extreme LLC core failure instantly.
4.4gz @ 1.376 extreme LLC, which seems to be the same as auto. Core failure within 2 minutes.

C&Q, C1E, C6 ON
4.4gz @ 1.392 regular LLC unstable after 30 mins, throttled
4.5gz @ ^same as above, unstable.
4.5gz @ 1.408 regular LLC, unstable
4.5gz @ 1.456 high LLC. unstable after 20 min

4.5gz @ 1.440v ultra high LLC only C&Q, unstable.
attmpted again at 1.52 high LLC, unstable and throttled.

I also tried some of the same settings a few times with the likes of downclocked NB, HTT, heavily underclocked/undervolted GPU, holy water


I think it might be MOSFET on my board overheating, but at this point I'm considering just selling both my MB and CPU off and joining the blue team.

Could it also be my PSU holding it back? I've got a 600w OCZ Modxstream but I'm going to be swapping it out along with a few fans for a GS800 over spring break

What my bios looks like. Using a GA 990FXA UD3 rev 1.1 with most recent beta bios.



post #2 of 19
nope, its a large voltage for anything over the turbo core max speed, mines at 4ghz and is totally stable with 1.284v if it gets under full load, you might find that 4.2ghz with be about the same on your cpu.
my mobo will not support this cpu all that well so getting above is a night mare, but with 6 core's instead of 8, I got to 4.6ghz at 1.464v before heat was to great.

what cooling you using please?
that h60 would never cut the mustard, the h100 don't much either.
    
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post #3 of 19
Quote:
Originally Posted by MrPerforations View Post

the h100 don't much either.
Wrong on the H100. H100 is a great cooler.
I had a 8150 @ 4.7ghz 1.488v with a H100 (2 AP-15 fans) and my temps with around 55c.
I have a 8320 @ 4.7ghz 1.488v with a H100 (2 AP-15 fans) and my temps with around 50c. Then I upgraded my fans to AP-29 and now I'm at 4.9ghz 1.56v and my temps max out at 54c.
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post #4 of 19
Thread Starter 
I'm using a custom loop so CPU temps should be a non-issue, its at 51c at the highest voltage I've been at (1.504)
post #5 of 19
Thread Starter 
Suggestions anyone?
post #6 of 19
I have same motherboard(same rev too) and the same CPU with a H80i instead of H60 (our systems should have very very similar results) and am getting much better results but have been locked at lower clocks for some time for many reasons, Ill list what was problems for me and some screenshots of high stable settings:

-Any HT overclock or downclock makes the system somewhat unstable, to reach my max clocks i loewred HT by 1x but have an obvious significan drop in performance.

-CPU NB OC is not worth the performance boost, you will get more trough fsb and it's also quite unstable. Its quite different from it's K10 predecessor on that.

-You will need close to no voltage boost until the x21.5 CPU multiplier, with my system x22 is ok with finetuning but it's a monster of a gap in voltage no matter the configuration for me, as soon as I pass 21.5 its just extreme.

-As for FSB it's pretty linear until 236 and my system reacts very dependent to temperature with it.

-With my system I need extremely loose RAM timings as soon as I got high OC, I always attributed it to the RAM I use (corsair vengeance 1866) but looking at this maybe the board could be a cause, how many slots have you filed ? When 4 slots are full on this board the max clock is 1333 (it will easily OC to almost 1800 with 4 slots full but gigabyte rate it for 1333)

-When I upgraded BIOS to F9 I gained just about 400MHz headroom out of nowhere and dont have an explanation for it. It also adds an option to disable an extra voltage control (which is listen with the rest of C1E etc)

-I don't believe the luck of the draw on the chips would justify such a large difference, and seeing the CPU works OK on normal settings I dont think you have a "dud".

-Here are some pics you can use #'s for referances since we have the exact same parts:







If you want you can send me a list of settings, Ill replicate them on my side and send you the results (temps, observations, etc) anything I can, so maybe we can determine the issue... Hope you get more performance out of it soon!
Edited by mindblowingj - 3/2/13 at 3:33pm
post #7 of 19
Thread Starter 
To clear things up guys, I'm not using an H60, I just replaced it. I would never try pushing this thing very far with it.

I'm using two sticks of G.skill Ripjaws at 9-9-9-24, since spring break just started I'll probably try loosening timings tomorrow. As of right now I'm still using it slightly undervolted, will update tomorrow.
Edited by Horrible Advice - 3/2/13 at 5:24pm
post #8 of 19
Doesn't the 990FX-UD3 have major vDroop?
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post #9 of 19
Thread Starter 
LLC seems to be bumping voltage up during load i.e. 1.264 to 1.280 load.
post #10 of 19
OK so you RAM is just supposed to outclass mine and you should have abit tighter, I had same measures for vDroop, I prefer using ultra high rather than extreme noticed less failiures to boot for higest freq. As for RAM Ive been needing to bump bank cycle to at least 36 to achieve anything and run also how many sticks of them ? I really suspect the problem is with timings cause I get the same type of issue with aero with the same hardware almost.. If theres 4 slots filled the problem is right there.
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