RIVE + 3930K XMP and trying to get 4.3ghz overclock

[Rassal]

I just read out about leaving voltages at auto on another thread, and that kinda made me wonder... what can i do to avoid such problems...

Now, i have been running since april my 3930K at 4.2ghz (by all core 42) with auto voltages without a problem... But when i read the thread about VCore, VCCSA and VTT voltage on auto can degrade a CPU i said to myself... why the hell should i risk it!

Now, i am attempting what i never bothered with... which is to get the last step that always failed for me... 4.3ghz.

I never was able to achieve 4.3ghz using auto before without bluescreens... so i didn't really bothered and i just rolled back to 4.2ghz and let it run...

Now, when i looked at my voltages with mt 4.2ghz stable overclock, i saw this:

VCore 1.32v
VCCSA 1.35v
VTT 1.34v.

I started to panic, as the recommendation was to avoid high voltages... so since i was on auto... i downed those voltages to this:

VCore 1.22v
VCCSA 1.1v
VTT 1.1v.

And i upped the overclock to 43 by all core to get a 4.3ghz Overclock.

Now... i can boot into windows and PC is stable when idle... i see that Speedstep works, (which is what i want anyway).

My Vcore is sitting now a 1.232v idle... with VTT at 1.1v and VCCSA a 1.1v.

If i start Prime95 and do some stress test... i get 0x00000101 bluescreen...

Where should i start from here to achieve a stable overclock without going too high with voltages... Should i only raise VCore until i get something stable? Then check if temperature are acceptable (Under 75C?)

Help required... please.

Thanks!

[Retired]

Wish i could help you with 4,3 ghz.. dont have the profile in my head..


4,7 is better..

vcore> 1,38
cpu_pll> 1,8250
cpu_vtt> 1,15
2nd_vtt> auto
cpu_vccsa>1.10
multi> 47

digi vrm>

cpu LLC> Ultra High
cpu_fixed freq.> 400
vccsa LLC> Regular

But i guess the 212 will say no..

[Rassal]

Yep, i am sure H212-EVO will say NO to anything higher than 4.3, as i am under full load now at 75C for the package... and i got core 1 and 5 running at 75C and all other cores are 71-72C.

I am borderline with my 212 now... i know that. Thinking seriously to watercool the whole system, but it's a large investment as i have to change my case for this. I will add a 2nd PWM fan on the H212 to help raise air flow... but still this is the highest i can achieve i think

Now, i am trying to stabilize my system and so far it's been running Prime95 for 15min without a hitch at:

vcore> 1,325 -- LLC> Auto
cpu_pll> 1.78125
cpu_vtt> 1.10
2nd_vtt> auto
cpu_vccsa>1.10
multi> 43

What do you think of thoses voltages?

Is 1.78125 too high for this setup? I am trying to get a 24/7 OC here... with speedstep setting the speed down when idle.

[Retired]

15 min... consider it stable then..

congratz..:D

[HiVizMan]

Is 1.78125 too high for this setup?

Nope that is all good.

[Rassal]

Ok, after updating to 2105 bios, i started to get 0x101 bluescreens when using prime95 within 5 min of starting it... if i am not mistaken, a 0x101 means i have to raise the Vcore.

Guess i will just raise Vcore 0.5v a time until i get it stable?

Upped the vcore from 1.325v to 1.33v and everything is golden now

[HiVizMan]

Let me get this straight. You were stable on a previous bios and then updated and now are not stable. Have I got that right?

[Retired]

Hmm..

why the update (i must ask?)

[Rassal]

I was stable before, and after, just had to adjust more VCore to 1.325 to 1.33, it wasn't because of the bios, because i did all the upgrades mostly all together. Upgraded to 2105a and upped my OC from stable 4.2 to a new OC at 4.3 and had to stabilize it... Now running over 2h on prime95 without a glitch, stable again...

I like the new features of 2105 and i like the new Intel RSTe bios, works faster with my OCZ dual-ssd raid-0 setup, this is why.

[Retired]

why so long, it takes 2-3 min to find out if the OC is stable.. not using prime95

Do you think that is good for your cpu?, those long runs, trying to force a bsod..