Overclocking prep - bios settings?

Karathez

Karathez

Karathez

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24 Feb 2014
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I have about 3 guides bookmarked for overclocking, but reading some of them & others posts I get conflicting info, so I'm asking:

What bios settings should I change before I start to overclock, some say enable xmp, some say disable, some say enable power saving, some disable, etc.

Also someone posted realbench as a good quick test to get a rough idea if its stable or not, is this any good? rather get a quick idea if its stable, then dial it back when its unstable, than spend 8 hours checking every step.

Currently using:
Aida64 - stress test
Cpu-z - checking if overclocks applied
hwmonitor -temps

I also read somewhere that some ram speeds dont work well with overclocking, my bios defaults to xmp off which gives me 1333Mhz ram, is that ok while I find my cpu overclock?

Thanks.
 
Are you going to overclock the rig in your sig?
If yes, then you should have xmp on, Haswell likes fast memory.

You don't need more software tbh. Some people say that best stability test is to run a cpu heavy benchmark, play a game or use a video encoding program i.e. handbrake.
 
For Haswell OCCT is the best program to test stability. As far as the memory goes your better off not setting the XMP profile up until you've got a stable OC, some people even step it down a speed, just to be certain it's not the ram, that is causing stability issues. Personally I just set it manually to the correct speed timings and voltage, and start from there.
 
I started at 4.2 at 1.2vcore as this guide recommended:
http://www.overclock.net/t/1401976/the-gigabyte-z87-haswell-overclocking-oc-guide

Aida64 was stable for an hour (not long enough I know, but trying to find a rough cpu oc so i can take it from there)

Stepped it up to 4.4 @1.25, quickly unstable, tried 1.28 vcore, temps hit 86, stepped it back down to 1.275, still unstable, changed these settings:

Vrin LLC to Extreme to prevent Vdroop
VRIN Current Protection to Extreme
PWM Phase Control to Exm perf
VRIN override to 1.9V
(Thanks to Havana for the above from another post)
Tried xmp, made no difference, disabled again
Ring voltage 1.15

Dropped it back to 4.3 multi, still unstable inside 5 mins, is the best I'm going to get 4.2? I'm very annoyed that this chips come out so bad, I know its the lottery but I was hoping to get at least 4.5.
 
I have my 4770k on air with 37 idle/50-60 under load, at 4.2 ghz and 1.2v.
Couldn't get it stable at 4.5 or 4.4 either.
Will try again next week after installing watercooling.
 
Seems if I run intel burn test on high at 4.2 I cant even get 4.2 stable at 1.25.

Just reset bios to optimised defaults as I've changed so much, ran IBT on standard [email protected] & it at least passed, set it to high & it froze after 9 passes
 
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