Overclocking 4690k Devils Canyon HELP!

AlexWatty

AlexWatty

AlexWatty

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30 Jul 2014
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10
Hi all,

This is my first post to the forums after recently building my first gaming rig. Hoping to put up a build log with some nice photos to show it off at some point.

Anyway the topic I'm having trouble with is I have just begun overclocking and have read all the guides on the forums etc but obviously not everyone has the same setup.

Spec:

Intel i5-4690K (Devils Canyon) Stock = 3.7Ghz out of the box
Gigabyte Z87-UD4H Motherboard
8GB Corsair Vengance 1600Mhz RAM
EVGA GTX 770 2GB Graphics Card
H80i Cooler in push pull configuration

At stock everything seems to be running relatively cool with my CPU topping 38C Idle and 45C-50C under load (Playing BF3) with ambient temps of around 25-28C. My graphics card is getting around to the 70C's which I've been told isnt too much of an issue.

However I overclocked to 4.4Ghz yesterday and ran the CPU through Prime 95 for all of 2 minutes before seeing my CPU temp rose all the way up to 100C obviously not sounding too healthy as I could make a cup of tea at those temperatures. I down clocked to 4.2Ghz and got it settled around 80C but these seem far too high for having the H80i practically running at full speed.

Any help you guys could offer would be great as I'm looking to put some of my work programs like 3ds Max and CAD software on at a later date and the extra pulling power would help a lot.

Many Thanks,

Alex

TL;DR CPU Stock temperatures with H80i seem ok but any overclocking seems to make those temps sky rocket. :eek:
 
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Dempsey22 said:
What vcore were you running when at 4.4Ghz ?
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At 4.4Ghz my BIOS set itself to auto and had it running at 1.287 I think. I have re-seated my H80i and saw a massive drop in idle temperatures as well as load temperatures however I am still getting a crazy jump when running prime 95.

At 4Ghz I got prime 95 running nicely at around 70C which I didnt think was too drastic but I thought it could probably be better considering the H80i maybe a complete clean of the thermal paste and a reapplication?

If you could shed some light on my noob OC'ing problems that would be great. :confused:
 
Have you set the Vcore setting to 'Manual' in the BIOS rather than 'Adaptive'?

If not, your volts will be pushed up to stupid, dangerous levels when benchmarking, hence the high temps.
 
almighty15 said:
To be honest the H80 is a poor cooler for most CPU's and flat out a no go for a decently clocked Haswell CPU.
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This is what I feared after buying the unit, having said that I got it on the super cheap so I have spent about £35 on it. Alternatives would probably be a good air cooler right?

In relation to the Vcore, my BIOS has it set at Auto so realistically what sort of Voltage do I need to be putting in to try and get those temps down.
 
Try 1.25vcore, manually set and see what happens. If it runs stable, chip it down to 1.24v etc, until it becomes unstable. Turn on LLC too- maximum setting. I would reckon LLC and 1.24v SHOULD do you... hopefully!
I'd also be looking to change that cooler...
 
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DoneADougalOnSofa said:
Try 1.25vcore, manually set and see what happens. If it runs stable, chip it down to 1.24v etc, until it becomes unstable. Turn on LLC too- maximum setting. I would reckon LLC and 1.24v SHOULD do you... hopefully!
I'd also be looking to change that cooler...
Click to expand...

Thanks Dougal, I will have a look into it when I get back from work, any idea where I can change the LLC on a Gigabyte Mobo? If not I will read the manual lol. Hyper 212 Evo sound like a good switch?
 
Yeah, start out at 1.25, that should be enough to get you rock solid stable at 4.6Ghz, probably 4.7Ghz if you have a good chip.

Benchmark to check for stability, then lower the volts to 1.20, which is what I run my 4690K @ 4.6Ghz with.

I have a £20 Raijintek air cooler and at those vlts and clock speed, is more than enough to keep the temps below 70c in 'normal' usage and gaming, and below 90c in things like Prime and LinX runs.

Only if i go to 4.8Ghz with 1.3vlts is my cheap cooler out gunned.
 
AlexWatty said:
Thanks Dougal, I will have a look into it when I get back from work, any idea where I can change the LLC on a Gigabyte Mobo? If not I will read the manual lol. Hyper 212 Evo sound like a good switch?
Click to expand...

LLC is hidden away in CPU power settings menu in the BIOS (iirc!)
The 212 Evo is good, but I'd go for something a little more up-range if you want some good speeds.
I use a Prolimatech Black Genesis on my 4770K (on the same mobo as yours) and it's good for 4.8GHz. Bit dearer than the 212, mind...
As mentioned above, you may even be able to get it down nearer 1.20v.
But the way to do it is to knock vcore down by 0.01 each time and test again.

As don't take Prime temps as gospel- you'll never hit those temps with general/gaming use so as long as the machine doesn't crash then job done.
If you can get the vcore down a notch or two then it should be happy days...


I've got to go to work in a moment, but I'll check back here later and post all my BIOS settings for you, if it helps. Different chip, admittedly, but won't be a huge difference settings-wise.

Also flash your BIOS to the latest F9 version, or the F10b beta BIOS, these may well help with voltage regulation. My temps dropped a few degrees and my chip runs stable with less vcore since I went F7 to F9.
 
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Hi again,

So after switching on again last night my idle temps decided to go up between 35C and 40C which is a bit of a pain having just reseated the H80i. Later on the they dropped back down but I am really going to have to buy a new cooler at some point in the near future.

So I had turned my Vcore down to 1.25 as recommended at 4.4Ghz with my LLC set to Maximum in BIOS, and it seemed to run ok but got significantly hotter. Just running idle I was hitting high 40's to mid 50's and of course the same issue with prime95 hitting that 100C mark.

I am waiting for the weekend to be able to flash my BIOS as at the moment I am limited on time to commit to this little over-clocking endeavour. Would print screens of my BIOS and HWMonitor help you guys at all?

Ta,
 
Alex,
the LLC prevents 'vdroop' when the CPU is under load- it can cause a rise in temps, so try 1.22v on the vcore and have another go.
Forgot to post my settings yesterday- again, have to got to work now, but I promise I'll stick 'em up when I get back!
I'd also be checking the pump on that H80i is running at full speed...
 
Cheers Dougal,

So I have managed to get what I think is a stable overclock at 4.6Ghz, everything seems to be running fine and temperatures arent outrageous, Idle im hitting about 35-40 and running games etc it can get up to about 75-80. Obviously there is still a lot of tweaking to be done.

So far I have:

Set Clock to 46
LLC is set to "Standard" (100%)
1.18V on Vcore
My pump appears to be running at full whack too so other than this i cant see how else to lower these temperatures. Ran Ungine Valley yesterday and got a respectable score with nothing running too hot.

Everything seems stable at these settings but obviously improvements can be made.

Another question I have is whether Intels turbo boost technology or whatever they call it will interfere with my overclock as when i open up CPU-Z my clock speed doesnt read out at 4.6 it constantly flicks around at lower clocks.

Ta,
 
AlexWatty said:
when i open up CPU-Z my clock speed doesnt read out at 4.6 it constantly flicks around at lower clocks.
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..that's just the power saving mode kicking in, change your power plan to 'High Performance' from within the Windows control panel 'Power Options' to keep your CPU running at your overclocked setting.
 
Right, these are my BIOS settings for my 4770K- they should (hopefully) not be dissimilar to a DC chip, configuration-wise...

BIOS version: F9 (if you're on earlier version, flash your bios first!)
CPU ratio: 45x
vCore 1.225 manual
Ring ratio: 43x
Ring volts: 1.190 (manually set)
System agent volts: +0.200v offset
I/O volts digi and analog: +0.200v offset on both.
LLC: Extreme
vCore voltage response: Fast
PWM phase control: Extreme
XMP enabled
All C-states, turbo and speedstep on Auto.

This gives me 4.5gig core and 4.3gig uncore speed with great temps, no stability issues at all. If I haven't mentioned it, it's on 'Auto'.

If you are truly stable at 4.6 with 1.18v then I think I hate you.;)
 
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DoneADougalOnSofa said:
Right, these are my BIOS settings for my 4770K- they should (hopefully) not be dissimilar to a DC chip, configuration-wise...

BIOS version: F9 (if you're on earlier version, flash your bios first!)
CPU ratio: 45x
vCore 1.225 manual
Ring ratio: 43x
Ring volts: 1.190 (manually set)
System agent volts: +0.200v offset
I/O volts digi and analog: +0.200v offset on both.
LLC: Extreme
vCore voltage response: Fast
PWM phase control: Extreme
XMP enabled
All C-states, turbo and speedstep on Auto.

This gives me 4.5gig core and 4.3gig uncore speed with great temps, no stability issues at all. If I haven't mentioned it, it's on 'Auto'.

If you are truly stable at 4.6 with 1.18v then I think I hate you.;)
Click to expand...

Dougal,

Absolute legend dude. Turned all the settings on my mobo to your outline guidance. The only one I couldn't find was ring ratio. Aside from that I have switched over to Aida64 as I've heard prime95 dislikes haswell chips. Much better numbers. Running for an hour or two now and in hitting top end temps of 70-73 no stability issues and looks like there is room for improvement. I will be posting results of what I can knock the vcores down to to try and reduce temps etc and have it running as a 24/7 overclock. Thank you all for your help I am very happy with results so far guys. Much appreciated.
 
The H80 is a very capable cooler, refurb ones are a cracking deal.

I had a 4670k at 5ghz on mine for a while (although obviously the volts were crazy so this was very temporary!).
 
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