What the heck is wrong with my temperatures?

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calza

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Mar 18, 2013
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This is really starting to grate on me now.

i5-4670k / Fractal Design R4 / 1 140mm Intake & 2 140mm exhaust fans.

Using a 212 evo I couldn't cool beyond 1.23volts.

I've just upgraded to a NH-D15 with both fans and while my coolings better .. it's still no where near as good as I see lesser specc'd people get? For example as a feeler I just ran 1.3v and after 25 minutes I was getting spikes of 87 degrees (similar voltage saw 92 on the Evo).

I applied the past multiple times on the Evo and it didn't help. Now I'm at a complete loss to be honest?
 
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Also, check your airflow. Front and side fans pull in cool air. Rear and top fans suck hot air out of the case. The 2 fans on the Noctua and the rear fan should all be moving air in the same direction (out the back of your case).

Also, what application are you using to measure system temperatures?
 
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I've only got access to the supplied nt-nh1 or mx4. I've tried pea dot, grain of rice, thin x all to poor temperatures.

I'm using HWmonitor.

Yes the two fans on the cooler are feeding to the rear case fan which is exhausting. There's also a top fan exhausting above the cooler.
 
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Place your palm in front of the fans without touching them and ensure air flow direction.

You seem to have done the right things; that's what makes this situation difficult to comprehend. 1.3V is slightly on the high side but not high enough to create the high temps that you are seeing. What did you set TJMax to?
 
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Oh yeah, I've checked that. To be honest the air coming out doesn't seem too warm, but maybe that's just airflow.

I only went for 1.3 as an example, to see if it stayed within limits at that. Although I don't have a great processor anyway, and need around 1.22 just to hit 4.3 stable.

I haven't set any TJMax, just keeping an eye on temps and stopping when necessary.
 
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CPU temps also depend on clock speed and load, not just Vcore. If you are running Intel Burn Test on Very High at 4.6 GHz, I'd say that your temps are good.

What are you loading the computer with?

What is your clock speed (CPU GHz)?

Yogi

 
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Those are OK for stress testing a Haswell under Prime95. Just keep it under 90*C. This also assumes that you are using a fixed Vcore.

Yogi

 
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Haswells just run hotter than Ivys or Sandys.

30 min. on Prime95 should be long enough to stabilize the temps.

Yogi

 
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I ran it for a little under 4 hrs. one day while I was surfing on Firefox. It went to 82*C. max on Prime95 @ 4.6 GHz.

YMMV. Some will run it overnight.

Yogi

 
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See my logic was along the lines of .. I'll never game solid for more than 60~90 minutes (too restless) .. so if I can stress test for that time I can game. The clock I'm on now crashed after about 2.5 hours last time in prime, but has been ok gaming?

What voltage did you need for 4.6? I can get 4.3 on 1.225 but to get 4.4 I seem to need 1.28 which is a disappointing jump!
 
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Under identical conditions it means one thing. The CPU is running a lot hotter and this is because the internal (inside the CPU) TIM is improper. This will result in higher temps.
 
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