Help overclocking delidded 4770k

T

thrgk

Limp Gawd
Joined
Feb 15, 2012
Messages
414
I have a delidded 4770k on water, the temps are fine at high voltage. at 1.42 I get 75C max on hottest core.

I am having trouble getting stable, and I think its my settings over capability. My mobo is the asus formula 1150.

My settings are:

Sync all cores=47
Internal PLL Auto
EPU Disabled
CPU Strap Auto
Dram voltage 1.65
Voltage Manual(cant seem to get offset to work) 1.38V.
CPU Cache min and max =auto
Cpu cache voltage=1.28
IO offset voltage =+.20
CPU Spread spectrum disabled

EIST=Enabled
Turbo=Enabled
C-States enabled.

Now I think the stability issue is caused by cstates. What I want is the CPU and voltage to downclock when idle. But I also want to get stable.

Can someone help me accomplish this? I have all latest drivers and BIOS and am using OCCT and X264 to try stability. I am not worried about temps, I got good delid and 2 480s and 1 360 radiators. OCCT With AVX I got 7 mins before it crashed, x264 seemed to crash sooner.

Sometimes I even crash on boot with WHEA Clock watchdog error, or stalls in the win 8 tiles.

Thanks
 
try a clock multiplayer like 4.5 first, I believe haswells have trouble even clocking over 4.2 from what I've read in reviews

see what you can get stable and go from there
 
Did you go straight to 4.7 or are you fully stable at lower speeds? Those temps are very good, I hit 90C on 1.42v on water. Have you tried IntelBurnTest or Prime95?
 
i read that x264 was best, and occt I use just to see my max temps. any settings that look out of place? what do you guys recommend on cstates, turbo, and eist? for manual voltage
 
Well I still want to know if you are stable at lower speeds such as 4.6.

What are you running your memory at? What are you running your uncore speed at? If you are linking uncore and core speed (e.g. cache is running at 4.7GHz as well) I would try dropping that down a few multipliers and see if that stables out. Also I would run RAM @ 1600MHz or lower until you get the core stabilized and then raise the RAM speed after you know what your stable core overclock is. This way you are focusing on one potential point of failure at a time.
 
What kind of instability you get? If it crashes while stress testing, pretty sure it's not the power saving features. Mostly on the following settings: vccsa, vcore, vring and in some rare chance - vram. For instance: mine will run completely stable with 4.4Ghz & 4Ghz ring with: 1.22 vcore, 1.21 vcore, 0.890 vccsa, 1.61 vram whereas 4.2Ghz ring require 1.25 vcore & 1.24 vring :eek:
 
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