4670k OC Log/.

[acwilson96]

I will be updating this with graphs and charts for my specific CPU.

Hardware: 4670k | MSI Z87M-G43 | Corsair 1600MHz 2x4GB

I messed up overclocking my 4670k so I have reset all settings to default, and here is a log of what I have done so far:

Setup

Update BIOS to latest version(2.2 for me)

Disabled turbo boost technology

Set my DRAM Freq to default frequency (1600MHz for me)

Overclocking

Target 4.0GHz

Increase multiplier to 40

Set Voltage to 1.080V(What it was at stock) + Blue Screened/Crashed during boot

Increase voltage to 1.085V + Blue Screened/Crashed during boot

Increase voltage to 1.090V + Blue Screened/Crashed during boot

Increase voltage to 1.095V + Blue Screened/Crashed during boot

Increase voltage to 1.100V + Blue Screened/Crashed during boot

Increase voltage to 1.105V + Blue Screened/Crashed during boot

Increase voltage to 1.110V + OCCT CPU Stress test lasts 1 minute 30 seconds

Increase voltage to 1.115V + Blue Screened/Crashed during boot

Increase voltage to 1.120V + OCCT CPU Stress Test lasts 2 minutes 25 seconds

Increase voltage to 1.125V + OCCT CPU Stress Test lasts 1 minute 42 seconds

Increase voltage to 1.130V + OCCT CPU Stress Test lasts 1 minute 33 seconds

Increase voltage to 1.135V + OCCT CPU Stress Test lasts roughly 6 minutes

Increase voltage to 1.140V + OCCT CPU Stress Test lasts 30 minutes!

Checkpoint: 4GHz runs 'sufficiently' at 1.140V

Target 4.1GHz

Increase multipler to 41 + crashes on sign in.

Increase voltage to 1.145V + OCCT CPU Stress Test lasts 0 minutes 34 seconds

Increase voltage to 1.150V + Blue Screened/Crashed during boot

Increase voltage to 1.155V + OCCT CPU Stress Test lasts 0 minutes 36 seconds

Increase voltage to 1.160V + OCCT CPU Stress Test lasts 1 minute 5 seconds

Increase voltage to 1.165V + OCCT CPU Stress Test lasts 0 minutes 35 seconds

Increase voltage to 1.170V + OCCT CPU Stress Test lasts 2 minutes 50 seconds

Increase voltage to 1.175V + OCCT CPU Stress Test lasts 9 minutes 27 seconds

Increase voltage to 1.180V + OCCT CPU Stress Test lasts 6 minutes 0 seconds

Increase voltage to 1.185V + OCCT CPU Stress Test lasts 2 minutes 16 seconds

Increase voltage to 1.190V + OCCT CPU Stress Test lasts 30 minutes!

Checkpoint: 4.1GHz runs 'sufficiently' at 1.190V w/ max temp @ 64c

4.1GHz + 1.190V fails 24hr Stress Test

Target 4.2GHz

Increase multiplier to 42 + OCCT CPU Stress Test lasts 0 minutes 2 seconds

Increase voltage to 1.195V + OCCT CPU Stress Test lasts 0 minutes 36 seconds

Increase voltage to 1.200V + OCCT CPU Stress Test lasts 0 minutes 10 seconds

Increase voltage to 1.205V + OCCT CPU Stress Test lasts 0 minutes 16 seconds

Increase voltage to 1.210V + OCCT CPU Stress Test lasts 0 minutes 27 seconds

Increase voltage to 1.215V + OCCT CPU Stress Test lasts 0 minutes 40 seconds

Increase voltage to 1.220V + OCCT CPU Stress Test lasts 0 minutes 40 seconds

Increase voltage to 1.225V + OCCT CPU Stress Test lasts 2 minutes 3 seconds

Increase voltage to 1.230V + OCCT CPU Stress Test lasts 3 minutes 15 seconds

Increase voltage to 1.235V + OCCT CPU Stress Test lasts 1 minute 23 seconds

Increase voltage to 1.240V + OCCT CPU Stress Test lasts 4 minutes 39 seconds

Increase voltage to 1.245V + OCCT CPU Stress Test lasts 3 minutes 47 seconds

Increase voltage to 1.250V + OCCT CPU Stress Test lasts 20 minutes 10 seconds

Increase voltage to 1.255V + OCCT CPU Stress Test lasts 22 minutes 1 seconds

Increase voltage to 1.260V + OCCT CPU Stress Test lasts 30 minutes!

Checkpoint: 4.2GHz runs 'sufficiently' at 1.260V w/ max temp @ 69c

4.2GHz + 1.260V fails 24hr Stress Test

[MegaDave91]

First off, you don't have to disable turbo boost with Haswell. 

 

Check out this video as well. There's only a few things you have to change with Haswell.

[Quick-]

Also, make sure your bios is updated. At least in my board, the Z87 G45, overclocks were very unstable until bios version 1.3.

[acwilson96]

First off, you don't have to disable turbo boost with Haswell. 

 

Check out this video as well. There's only a few things you have to change with Haswell.

This technique I am using appears to be fine and I am using the forum as a place to store results so that others may use them if they please!

Also, make sure your bios is updated. At least in my board, the Z87 G45, overclocks were very unstable until bios version 1.3.

 

 

Yes I am on the latest update, thanks for reminding me I will add that to the post!

[Quick-]

Oh, I forgot. You have a horrible overclocker.... :/

[acwilson96]

What roughly is the limit for Haswell as far as Voltages go, more specifically the 4670k?