Overclocking advice

xs2man

xs2man

xs2man

Soldato
Joined
21 Jul 2008
Posts
5,070
Guys,

I'm looking for a simple overclock for my 4770k. I'm running a Gigabyte GA-H87-HD3 mobo, Kingston Predator RAM (8 GB, 2400 MHz), Corsair H60 v2 for cooling duties with two SP120 fans running push / pull.

Stock speeds I can run the CPU's (2-8 hours solid) at 100% around 65-68 degrees.

I have been trying to dial in a small OC to 4.2 GHz. But the computer seems to either freeze, or I get the BSOD.

Now when it freezes, I think it's probably overheating, too much voltage?

When it's BSOD, is that likely not enough voltage?

My mobo doesn't allow for lots of configuration, so I leave most settings stock on auto. I have the multiplier set to 42, and voltage to 1.16 just now. Am about to try another stress test (video encoding).

Is that really too much voltage for this relatively small OC?
 
Have you tried lowering the RAM speed at all with this?

The balance needs to be right between both. Don't always think it needs just more V's.

Just trial out 1600mhz and see if the CPU starts increasing
 
needs more voltage I reckon,that or memory controller voltage digi/analogue io (one/two clicks )
1600mhz is the limit of ram speed on h87 so you wont be able to run any higher
 
Yeah, the RAM I just picked XMP Profile 1 and left it.

Even with a relatively small OC of 4.2 GHz with voltage set to 1.25 and it's unstable, and the CPU heats up pretty quick too. Then Windows either hangs, or BSOD. Even knocked th OC down to a multiplier of 40 and still the same.

I test the set-up simply with video encoding in Handbrake, as that's what I use the machine for, so it maxes out the CPU almost instantly, and takes anywhere from 1 - 2.5 hours to do a single file.

The last few days, I just loaded optimized defaults and ran it. It Turbos to 3.9 anyway (although down to 3.7 when encoding), and maxes temps at 68 degrees.

I figure if I do want to OC from here, I'll need to invest in a better mobo and CPU cooler, and, tbh, with having just spent so much on the rig, I don't have the heart to spend any more. There are a further 8 case fans BTW in the rig keeping everything relatively cool. I have 4 intakes (2 bottom and 2 front) 3 exhaust (on top), the 2 push / pull on the radiator at the rear exhaust (obviously set-up as intake though), and a single interior fan directing the intakes toward the general CPU area.
 
Sorry mate, seems you have a really poor chip, and I thought mine was terrible but it's nothing as near as not being stable at 4.0. Try disabling XMP altogether as I could not stabilise my OC with it on no matter how much voltage I pumped.
 
1.16v is quite low for 4.2, 1.25v a tad high.

Try 1.21v vcore, and give 'system agent voltage' a +0.250v offset.
In my personal experience, I thought I had a real naff chip to begin with. The SAv offset turned it into a different beast entirely, I now think I got a pretty good one. Maybe it'll work for you too...

Perhaps 0.01 on ring/cache volts would help too.
 
I have my 4770k at 1.2v and its fully stable, tested with aida64 and done some benching.
Ram is set to 2133mhz with xmp.
As for cooling, Im on air right now, prolimatech megahalems max temp registered was 65 in aida64.
Best to grab a good z87 motherboard, maybe one of gigabyte's?
 
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Must just be the worst 4770k ever then. Just not clockable. Might have to re-apply some decent thermal paste and re-test, but I just get no-where.

I tried your settings dougal1331, but the temps popped straight up to 87.
Then started reducing vcore, 0.1v at a time. Got it down to 1.17 where temps were still at 83, before the system froze, then BSOD (0x000000124).

Put it back to optimised defaults, temps still way up there at 82??? This is beginning to really bug my happiness now. I'm sure if I leave it a while (couple restarts etc...) the temps will come back down to a more reasonable 68 or so.

As it is, I'm pretty peeved tbh. Spent all that money on the "best" chip, the 4770k & The H60 v2 cooler (which I though would have been half decent at least), and can't even get a slight OC on it. Not entirely convinced a better mobo would realistically make that much difference.
 
Something is very wrong with your temps at stock speeds.
I.d try different tim, maybe liquid metal or clu.
Your stock speeds with h60 and 2 fans in push pull are the same as mine, 4.2 ghz oc and air cooled, 1 sub1k rpm fan on push?
This chip can't be that bad.
 
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I have the radiator fans full pelt. ~1350-1400 rpm.

As suspected, left the PC off overnight, and after booting it up here, and loading up an encode, 4 cores maxed at 100% sees temps of, 68, 69, 63, 54. At least core 4 is nice and cool.

What is tim? Is that the thermal paste?
 
xs2man said:
I have the radiator fans full pelt. ~1350-1400 rpm.

As suspected, left the PC off overnight, and after booting it up here, and loading up an encode, 4 cores maxed at 100% sees temps of, 68, 69, 63, 54. At least core 4 is nice and cool.

What is tim? Is that the thermal paste?
Click to expand...

Yes, it stands for Thermal Interface Material. (TIM)
 
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I think Bart Hunt is on to something.
Those temps don't seem right to me. Is the pump running full speed?
Might be worth reseating the CPU cooler with some good, fresh paste and see if that helps. As Bart says, I can't see your chip being THAT bad.
Fingers crossed for ya mate...
 
Yep, that first one was the one I was going to get. I had a read of Stulids reviews, and figured as it was the best performing, that would be the way to go, and to hell with the difficult application.

The other two look even more expensive though. Any comparisons to the Coollaboratory stuff? The Gelid got ace review from Stulid, but at £20?
 
Coollabs liquid pro/ultra are a good deal better than top end conventional pastes, but you have to be very careful when applying it.
 
I can run my 4670K @ 4.4 1.2v LLC takes it to 1.216v

If I want 4.6 stable though I need to go to 1.316v including LLC but I am under a custom water loop temps under realbench don't go above 60°C
 
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