NH C14 with 7700K throttling.

[Pistaful]

Hi all!

I am running a 7700K at stock, with a Noctua NH C14.
When I run prime95 the temperature ramps up to 100C and the cpu throttles at 4,3 Ghz.
My case has one 12cm intake fan and one 12cm fan that blows out.
Is this normal?
Should I try a better thermal paste? I can add another intake fan to my case. Could that help?
Could adding a second fan to the heatsink help?

[Walt]

Are you sure it correctly mounted?

[Ganz]

What are idle temps like?

[Pistaful]

Idle is 42C at around 3% usage.
I think i have mounted it properly. But I haven't cleaned the thermal paste leftover from the last cpu.

[Nfrahm1]

10 minutes ago, Pistaful said:

Hi all!

I am running a 7700K at stock, with a Noctua NH C14.
When I run prime95 the temperature ramps up to 100C and the cpu throttles at 4,3 Ghz.
My case has one 12cm intake fan and one 12cm fan that blows out.
Is this normal?
Should I try a better thermal paste? I can add another intake fan to my case. Could that help?
Could adding a second fan to the heatsink help?

adding an additional intake and a second fan to your cpu cooler will definitely help.

the thermal paste that came with your noctua cooler is good thermal paste, use that. 

 

i would re apply thermal paste and make sure the old paste is completely cleaned off. 

your idle temps seem high. what's the ambient temperature in your room?

 

[Walt]

1 minute ago, Pistaful said:

Idle is 42C at around 3% usage.
I think i have mounted it properly. But I haven't cleaned the thermal paste leftover from the last cpu.

Make sure you quote someone

If you have thermal paste left around I would suggest replacing it and be extra carefull when mounting 

[Pistaful]

Just now, Walt said:

Make sure you quote someone

If you have thermal paste left around I would suggest replacing it and be extra carefull when mounting 

What's the best thermal paste?

[Walt]

1 minute ago, Pistaful said:

What's the best thermal paste?

If you need to order new thermal paste I think most people buy 'Arctic Silver 5' but I'm not sure. Correct me if I'm wrong

[Nfrahm1]

1 minute ago, Pistaful said:

What's the best thermal paste?

noctua's thermal paste is very good, just like their coolers and fans.

it should be the stuff that came with your cpu cooler. NT-H1

[Pistaful]

It turns out it is the case. If I remove the cover the temperature lowers.
I moved a fan and it's a bit better.
Prime 95's small FFT test is unrealistic anyways.

[LogicalDrm]

First, don't run P95. It's old stress test which is known to heat newer Intel chips. Use other software, like OCCT, Aida64 and Asus RealBench.

 

Second, what are your voltages while it heats up? Clocks don't really raise tenps.

[Pistaful]

On 21/11/2017 at 5:51 PM, LoGiCalDrm said:

First, don't run P95. It's old stress test which is known to heat newer Intel chips. Use other software, like OCCT, Aida64 and Asus RealBench.

 

Second, what are your voltages while it heats up? Clocks don't really raise tenps.

Hi!

Thanks for the reply! I use the cpu at stock voltage and frequency. Prime 95's small fft test is the only application that raises temperatures to 100C, so I decided not to care about it, cause real life usage doesn't raise it above 80.
Maybe there's even some headroom for overclocking, but i'm a bit afraid of voiding the warranty.

[WoodenMarker]

53 minutes ago, Pistaful said:

Hi!
Thanks for the reply! I use the cpu at stock voltage and frequency. Prime 95's small fft test is the only application that raises temperatures to 100C, so I decided not to care about it, cause real life usage doesn't raise it above 80.
Maybe there's even some headroom for overclocking, but i'm a bit afraid of voiding the warranty.

The voltage is set to Auto by default so it can vary greatly. Use CPU-Z to monitor your core voltage under load.

Oc'ing settings are kept on the motherboard and there's no way to know that a CPU was oc'ed after it's removed. Oc'ing is fine as long as you don't voltages too high and keep temps in check.