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Please help OC 3570k at 4.0

  • CPUs
  • Power
  • Overclocking
Last response: in Overclocking
January 30, 2013 3:02:34 PM

I've just started to learn about OC and would like to know your opinion on my first attempt.

intel i5 3570k
ASUS P8z77 V LK -
Gammaxx 300 air cooler -
Palit GTX 670 Jetstream
Corsair Vengeance 1600Mhz 2x4GB 9-9-9-24
Corsait GS600 PSU
Cooler Master HAF912, 2 front in, 1 side in, 1 rear out

OC profile1:
ai overclock tuner - X.M.P 1600
turbo ratio - manual 40
bclk - 100
cpu voltage 1.032V with offset auto
cpu fixed frequency - 250
cpu power phase control - standard
cpu power duty control - t.probe
cpu current capability - 100%
cpu load line calibration - auto
enhanced intel speedstep - enabled
turbo mode - enabled
others - auto

Using prime95 blend 2hrs (no errors):
vcore max - 1.16
VID - 1.2109
CPU load max core temp - 73C
CPU idle/(low usage) max core temp - 47C
CPUTIN max - 90C
cpu power - 61 watts
tdp - 77watts
GPU - idle, not stress tested, 34C

Using prime95 in place large fft - error less than 1min:

I've read that 4.0 does not require too much voltage.
If I get error in Prime do you think this voltage is still low?
Should I use manual without offset?


More about : 3570k

a b à CPUs
a b K Overclocking
January 30, 2013 3:57:59 PM

Is there an option to have the overall voltage auto set as well?

Your temps aren't dangerous but high for my taste. Not familiar with that cooler. With the evo, I idle right around 30C and 59C under OCCT load.
January 30, 2013 10:46:14 PM

in my bios
cpu voltage options [manual/offset] - i have offset
offset mode sign options [+/-] - i have +
cpu offset voltage is auto
is that the one?
Related resources
a b à CPUs
a b K Overclocking
January 30, 2013 11:29:21 PM

Sorry eh, not familiar with that board. You tried googling oc for that specific board?
January 31, 2013 1:15:37 PM

thanks for the link.. =)

i tried increasing it a bit..
what do you think about 4.2GHz using offset mode + 0.200?

after an hour of prime here are the results
vcore max 1.248
max temp on load 79
ave temp on load 70
idle 37

do you think I can still push this to 4.4?or the temps are already bad?

Best solution

a b à CPUs
a b K Overclocking
January 31, 2013 2:12:13 PM

you may hear varying opinions on the temp. I hear 85c is safe. i read 95c for stress testing is ok. I get about 90c has my high during prime95. highest i got in actual use, i.e. playing games, was about 65c.

im at 4.7ghz, 1.296v, i just did the offset thing last night(finally) and have an positive offset of 0.12.

what i was reading is, voltage minus vid gives you your offset. so in my case 1.296v-1.1709= .12 roughly. I put this into the offset, using the positive offset. yours most likely is different.

hope that helps!
January 31, 2013 2:43:00 PM

thanks.. in battlefield 3 i get around 67max at 4.2GHz..
however, sometimes I see shadows that are stuck, is that related to my cpu OC or something else?
a b à CPUs
a b K Overclocking
January 31, 2013 3:07:11 PM

I'd keep an eye on the temps but that's well under the "not good" zone.

I stay well under 60C in BF3 at 4.1GHz. Haven't see stuck shadows but sometime have debris or a corpse stuck in midair.
January 31, 2013 3:11:59 PM

so that could be a BF3 bug, hopefully crysis 3 won't hafe those bugs.. :) 

maybe i can try lowering the offset to make it a bit colder?
February 14, 2013 9:34:46 PM

Best answer selected by bcarb.