4690k Prime95 Temps

[buklau]

Sunday I applied CLU between IHS and the CPU die on my delided 4690k and MX2 between IHS and the heatsink. Before I used MX2/MX2.

Settings = 4.6ghz CPU @ 1.293v, cache = 4.3ghz @ 1.225v, ram = 2200mhz @ 1.47v. Heatsink = Coolermaster Hyper 212+ Evo with base lapped to 2000 grid sandpaper mirror finish + stock fan.

Undelid + MX2
Idle = 27-31c across cores
Gaming = 63-69c across cores
Prime95 28.5 Blend = 83-85c across cores
Prime95 28.5 Small = 105c and then instant shut down.

MX2/MX2
Idle = 25-28c across cores
Gaming = 60-65c across cores
Prime95 28.5 Blend = 74-75c across cores
Prime95 28.5 Small = 93-96c across cores

CLU/MX2
Idle = 25-27c across cores
Gaming = 53-55c across cores
Prime95 28.5 Blend = 63-66c across cores
Prime95 28.5 Small = 83-85c across cores

Are these normal temperatures with CLU/MX2? I applied a very small drop on the CPU die, brush it carefully and spread it out with the provided tools.

 

[tolis626]

These temperatures are much better than what I'd expect to get with your setup. With your CPU settings and your cooler you are pushing it too much. Like, way too much. I'm having trouble keeping my CPU cool under Prime95 (see my sig for settings, my cache is also at 4.3GHz, but at 1.22V) and I have a Corsair H110 in push-pull.

If I were you, I'd drop the clocks to 4.4-4.5GHz and drop the voltage, or upgrade my cooler. The Hyper 212 Evo is really good for what you pay, but after a certain point it just doesn't cut it. That and stop using Prime95 for chrissakes. You're just torturing your CPU for no reason. Use OCCT/RealBecnh/Aida64 or whatever else floats your boat. Don't use Prime95 v28.5, anything with Linpack and IntelBurnTest, as these cause the CPU to heat up too much for no reason at all.

 

[buklau]

These temperatures are much better than what I'd expect to get with your setup. With your CPU settings and your cooler you are pushing it too much. Like, way too much. I'm having trouble keeping my CPU cool under Prime95 (see my sig for settings, my cache is also at 4.3GHz, but at 1.22V) and I have a Corsair H110 in push-pull.

If I were you, I'd drop the clocks to 4.4-4.5GHz and drop the voltage, or upgrade my cooler. The Hyper 212 Evo is really good for what you pay, but after a certain point it just doesn't cut it. That and stop using Prime95 for chrissakes. You're just torturing your CPU for no reason. Use OCCT/RealBecnh/Aida64 or whatever else floats your boat. Don't use Prime95 v28.5, anything with Linpack and IntelBurnTest, as these cause the CPU to heat up too much for no reason at all.

Do you have a delided 4790k? If you haven't, then that explains why your temperature is higher than mine. I just hope broadwell and skylake will come with solder CPU instead of TIM. I just tried OCCT, temperature is around 64-67C range with CLU/MX2 delid setup.

 

[tolis626]

Do you have a delided 4790k? If you haven't, then that explains why your temperature is higher than mine. I just hope broadwell and skylake will come with solder CPU instead of TIM. I just tried OCCT, temperature is around 64-67C range with CLU/MX2 delid setup.

Oh yes, I forgot to mention that. My CPU isn't delidded, but still I think what I said stands. Almost 1.3V going through a Haswell i5/i7 that's cooled by a Hyper 212 Evo is asking for trouble, even if you've delidded. If you're comfortable with the risk, however, go on by all means. Even so, Prime95 is a useless strain on the CPU no matter how you see it. Asus' RealBench is about the closest you'll come to a realistic scenario for stress testing.

On a side note, what games were you playing to measure temps? On my rig, playing BF4 (Especially a 64 player map online) will cause the CPU to draw +0.02V at times, like running a stress test will. So that's what I'd use as most games won't be a worst case scenario.

Other than that, happy new year!