Temps for my 3570k (stock) with EVO 212

[Banjo-Kazooie]

Greetings all

I would like to know whether my temps are decent for my 3570k at stock clock. I'm using a EVO 212 and my ambient temp is 21C. My case has one 140mm intake and a 120mm exhaust. The EVO 212 is set for intake through the heatsink.

Minimum idle temps are 26, 22, 29, 20.

With Prime95 my temps in small FFT test (17 minutes) is 64, 69, 66, 62

I've tried to reseat the EVO 212 a lot of times but I just can't bring down the temps. When doing modest overclocking (~4.2GHz) my temps easily hits 80-90C with sufficient voltage for stability.

My question is whether my stock load temps are decent enough or I perhaps got a bad chip unsuitable for overclocking?

 

[Novuake]

Well what method are you using?
BIOS overclocking? Fixed or offset? What voltage are you using?

For 4.2GHz the average 3570K should need like 1.2v. BUT its possible to get a bad sample.

 

[cklaubur]

Those idle temps (at stock?) are just fine. They are lower than my 3570K O/Ced to 4.2 GHz with a Hyper 212 Plus installed.

Casey

 

[Banjo-Kazooie]

@Novuake. I have making the OC through BIOS with offset and auto. Both works for 4.2GHz actually. However, my motherboard (ASRock Pro3) doesn't allow fixed voltages.

@cklaubur. Yep, the idle temps and load temps I've noted are for stock CPU settings.

I would really like to hear whether those load temps in small FFT test are decent as I can't seem to keep temps down when I start fiddling with offset voltage and upping the clock speed.

 

[Novuake]

Ah yes, well it could be the VRMs on the Pro3 that is limiting you, its not that stable a board.
But more likely the chip itself is just unhappy with higher clocks.

 

[cklaubur]

Your temps at 4.2 GHz are a bit higher than they should be. Mine tops out at about 80 C. Yours should run a bit cooler than mine because of the heatsink. The Hyper 212 EVO has a smoother base than the Plus, which allows for better contact.

My 3570K is running at the stock 100 MHz bclk speed, with the multiplier bumped up to 42, and the voltage set to "AUTO", which comes out to about 1.22 V.

Casey

 

[Banjo-Kazooie]

Thanks for the answers guys. I can easily keep the system stable at 4.2GHz with auto voltage. I'm new at overclocking so there's probably a lot of things that I don't understand. However, it just seems I can't stay at around 80C as soon as I start to mess with offset voltage.

I would like to isolate the cause for these temps. I've reseated the heatsink plenty of times and the temps have all been quite similar to the numbers I've posted (both tried pea method, single line and dual line)

Would it be realistic to expect much better OC if I switch to a better motherboard? I know the Pro3 is a rather budget, but does this VRM thing affect temps that much?

 

[Novuake]

Yes, it does. The voltages will fluctuate with cheap VRM and VRM cooling. So if you can TRY to limit that you may get better results.

 

[Banjo-Kazooie]

Alright, thanks. So changing the motherboard may be the salvation for stable OC then. I've tried to bump the multiplier to 43, but that starts to give a whole lot of BSODs and errors when running the small FFT test.

Are my stock load temps any indication of whether the CPU is good for OC? I'd be a bit gutted investing in a new motherboard if the CPU sucks as well. I know overclocking is no-guarantees-land, but perhaps the numbers tell something?

 

[Novuake]

Its hard to say. Getting a new better mobo is not really a good idea in my opinion. Instead get a better cooler.

 

[Banjo-Kazooie]

Ok, you might be right. I just thought that the Hyper212 EVO was supposed to easily handle my CPU for at least something like 4.4-4.5GHz (assuming the CPU isn't a bad one)?

 

[Novuake]

Yip, UNLESS you have a hot sample or your motherboard blocks you from decent OC.

Keep in mind a 4.2GHz OC is pretty decent boost in performance and 80C really is not that hot.