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Overclock 4670k 4.2 to 4.4 - Lookin for tips and a couple of questions

Raventlov
Level 7
Greetings everyone,

so with the christmas time i managed to get a good heatsink (Noctua NH-D15) and proceeded to overclock my CPU keeping in mind that i want to maintain all of the Haswell energy saver property.
At the moment i'm running at stable 4.2, and the CPU core voltage is set in the bios as AUTO, resulting in what i think, adaptive. At 44x multiplier i get into windows and even run a couple of benchmark with the Intel(R) Extreme Tuning Utility or a game session of a couple of hours, but from time to time a BSOD comes with whea uncontrollable error (should be related with wrong voltages right?)

If i manually select Adaptive voltage in the BIOS i can't get to windows. Still have to try with a manual override voltage (how much should i set for 44x multiplier?), but i don't wont to lose the Intel EIST (Speedstep).

On the other hand, i have a question about temperatures. My motherboard is @ 36° and if i power up all the fans i can get it to 30 but not lower, while i see many peoples around with a fixed 25° on the MoBo. Am i doin' something wrong?

Last but not least what is VCOREREFIN and why is so high? (2.008 V)

Waiting for some good man that can enlight me, Happy New Year!!! 😄

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3 REPLIES 3

jab383
Level 13
Hi Raventlov, and welcome

The important parts of your rig and profile are that it's air cooled and it's almost stable at 4.4GHz. That's a good overclock when air cooling a Haswell. Unfortunately, the CPUs vary so much from one to another that there is no way for us to give you an exact core voltage that will work. You are correct that BSOD with code 124 indicates the need for higher core voltage. I suggest increasing the manual core volts in steps of .02 until the profile is stable with 44x multiplier in games and test programs.

Adaptive is another matter. With multiplier set to 44, turbo and EIST enabled, set core voltage to adaptive. Then put the voltage level determined manually above into the block "Additional Turbo Mode CPU Core Voltage". Use the sensor programs as in your original post to watch temperatures and voltages to be sure you get the desired result. Note that EIST and adaptive voltage will pull down both clock rate and voltage when idling in Windows. Maximum will only happen under game or other heavy load.

I don't know what VCOREREFIN is. The AUTO setting in BIOS for Initial and Eventual CPU input voltages appear to be giving the nominal 1.7 to 1.8 volts. In the monitoring software, VCCIN is the value for CPU input voltage. At 1.76 volts, that's just fine.

Motherboard temperature looks like an error. CPU, CPU package and core temperatures are all in the low 30's, which is okay for air cooling. Watch those temperatures at heavy load such as a game. Temperatures in the 60s are fine. Occasional peaks in the 70s may happen with really heavy load. More than that is cause for concern - reducing the overclock should reduce temperatures if they peak too high.

Happy New Year to you , too

Jeff

PerpetualCycle
Level 13
VCOREREFIN

I expect it is just that. A reference input voltage supplied for vcore that should be 2V. Mine reads 1.998

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Raventlov
Level 7
Thank you guys for the answers, i'll try to reach 4.4 in the next few days when i have some spare times and let you know of the progress.