Overclocking 4930k on RIVF

[Johnny5]

Picked up a 4930k and have it stable (well mostly stable, Prime stable for about 4 hours) at 4.5 offset +0.070. XMP profile 1866mhz, CPU Load Line Calibration set to Medium.
I have not touched any other settings yet.

Temps are fine as I have a ton of cooling. I am trying to push it but I dunno. If I am stuck at 4.5 it wont be the end of the world and I wont rage quit my overclocking, but it would be cool to see how much more I can get out of this chip.

I have tried to increase to 4.6, 4.7, 4.8 by increasing the offset up to .120 with no luck.

Any suggestions would be greatly appreciated.

Thanks!

[Bliz33]

don't know nearly as much as the others....and they're bound to chime in soon
but from what i know/ have learned so far.....

1.more info....what voltage is it taking to run at that speed...

i don't think you'd need to adjust anything but vcore...

vtt and vcc probably dont need adjusting @1866

i'd just say more juice....but if it takes a significant increase in voltage to run more...then you may have reached your 24/7 threshold...
seems to be a prevalent theme with many of these chips when you're trying to push it harder

you already have a good OC if that's stable enough for you...and if it is taking ~1.34 to run at that speed....then pushing it harder will probably get you to ~1.4ish...and i, personally, wouldn't run it that high...i wish i could get to 4.5...:cool:

i might be spewing nonsense but i noticed that with my chip @ 4.3-4.4 and a few others when reading around...pushing it harder simply takes a significant jump in voltage

p.s......search for a post from RAJA@ASUS...he presented a decent sample size of 4930ks with X speeds @ X voltages......that should give you a better idea of where you're at with your chip

[Bliz33]

double

[chrisnyc75]

You're gonna have to tell us what vcore that offset is giving you, we can't give you advice based on an offset when we don't know what it's based on.

The rule with IB-e, most agree, is that 1.4v is the vcore max. Whatever oc you can achieve UNDER that is your particular chip's maximum.

[HiVizMan]

Yip tipping point is what I call it. What it is - that point where an exponential increase in voltage is required for an incremental increase of frequency.

1.4 has been bandied about as a target for 24/7 use but really it is all about the cooling. If your cooling allows 4.7GHz for example at 1.44 volts and under 70'c with a load then no worries in my book. But if that voltage under load pushes you to the upper 90's then no do not go there.

[Johnny5]

Thanks for the replies.

At a 0.070 offset under load I am at 1.424 vcore. Temps under load are at mid 50s with radiator fans only running 50% and pump on medium. I don't mind running 24/7 at 1.42 or 1.45 so long as my temps are where HiVizMan pointed out.

When I try to go to 4.6, even .120 offset isn't enough. I was thinking that perhaps manually setting vcore instead of using offset might help achieve a higher oc?

[Bliz33]

Johnny5 wrote:
Thanks for the replies.

At a 0.070 offset under load I am at 1.424 vcore. Temps under load are at mid 50s with radiator fans only running 50% and pump on medium. I don't mind running 24/7 at 1.42 or 1.45 so long as my temps are where HiVizMan pointed out.

When I try to go to 4.6, even .120 offset isn't enough. I was thinking that perhaps manually setting vcore instead of using offset might help achieve a higher oc?

most of the long-time ocers will probably say stick with off-set......having the cpu under-volted when it's underclocked is a win-win situation....constantly zapping the cpu w/ X voltage is only going to degrade it even faster


if it's just benching...then go ahead and go all out with manual

but for 24/7 usage i'd definitely stick with offset

imo...just call it quits with what you have....i'd even reel it in a little....but i tend to go with the motto of "safer than sorry" with a 24/7 oc

[ftimsters]

Hay my experience with my 4960 was 1.4 can't go to 4.7 and I'm not willing to go higher but I can prime all day at 4.6 1.375vcor my understanding is your chip should do better I'm at med llc 120% optimized phase control good luck maybe try RMA you chip

[HiVizMan]

Totally agree offset is the way to go with CPUs today for a 24/7 oc.

Benching manual voltage and then change it in software in line with your multi increases in OS.

So I boot in at 4.4 GHz for example at a voltage of 1.4 then in OS change my voltage to 1.65 and my multi to 5.5 select enable and then move up to my next check point before maxing my system out CPU dependant.

[Hatross]

take the offset one notch past when the digits turn red... see if your vcore goes any higher than 1.42v