CPU frequency stopped changing after a few overclocks

jepulisman · Jul 25, 2014

So I tried how far I can push my fx-6300 on stock voltages but I noticed that the CPU frequency in windows doesnt change after a few tries. Not even when I reset my BIOS settings or put stock clocks in. I got to 3.8GHz when overclocking. I have an asrock 970 extreme3 r2.0 and in the BIOS it says the CPU frequency is the stock 3500 MHz (which I have set it to now) but when in windows, cpu-z and windows say that my cpu's max frequency is 3.8 GHz. I cant figure out what's wrong here. I have restarted my pc many times and tried changing the values in BIOS. No effect. Any help is appreciated!!

jepulisman · Jul 25, 2014

Update: It changed to 4.3 GHz when I tried just a minute ago and it worked. Bumped the voltage a bit. Let's see if it works now

Novuake · Jul 25, 2014

Take it slow on the voltage. The Asrock Extreme3 does not have the best VRMs on the planet.

jepulisman · Jul 25, 2014

Novuake :

Yeah it was stable for a ~15 min run on prime95 but the cpu was throttling like crazy

Definitely gonna turn the voltage down and see if I can get it stable and better temps. I was running 1.3 volts.

Novuake · Jul 25, 2014

What temps were you getting?
What cooler do you have?

jepulisman · Jul 25, 2014

Novuake :

66C max when it started to throttle and I have an enermax ETS-T40-TB CPU cooler. I lowered the voltage to 1.2625 volts (it was 1.26something at least, cant remember accurately). I'll test it now.

update: 2 cores failed immeaditely when I started prime95. Now I'm gonna test 4.2GHz.

Novuake · Jul 25, 2014

Ok wait wait wait. You need to stay under 63C...

Do not overclock from a high number and move down.

Do it the other way around, incrementally increase clock rate until you lose stability then increase voltage(run stress tests inbetween) and repeat.
While doing this ALWAYS monitor temps and stay under 63C.

Novuake · Jul 25, 2014

Dude STOP, you are gonna damage something. Slow down.

Overclocking is NOT a processed to be rushed.

jepulisman · Jul 25, 2014

Novuake :

Yeah I have done overclocking before with my CPU and I got to something like 4.0 GHz on stock voltages but I wasn't satisfied. Temps were ok then.

Novuake · Jul 25, 2014

Define ok temps?

jepulisman · Jul 25, 2014

Novuake :

Like 58-60 if I recall correctly

Novuake · Jul 25, 2014

Thats safe at least.

jepulisman · Jul 25, 2014

Novuake :

Now getting 61-62C@4.1GHz/1.2625V. I think I'll test 1.25V but if it isn't stable this is my final OC.

Novuake · Jul 25, 2014

Yeah seems solid, try and get the voltage as low as possible always.

jepulisman · Jul 25, 2014

Novuake :

What a pity I can only change the voltage in 0.0125V increments

Hopefully 1.25 will be stable

update: I finished the 1.2625V test and the temps rose to 64-65 in the end. Finished the 1.25V test and it stayed at 63C stable. I'm gonna try with stock 1.2375V now. Hopefully it will be stable this time.

2nd update: Started prime95 with 1.2375V, after about a minute core 6 failed. So considering there's a heat wave covering Finland at the moment and my ambient teperature is 3 to 4 degrees higher than normal (25.5C inside atm) I'm quite satisfied with that 4.1GHz/1.25V. That's my final OC for this chip

Thanks Novuake for help!

jepulisman · Jul 25, 2014

And BTW the frequency not changing was due to my incompetence at using my BIOS XD

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