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Core i5 4670K Normal Temps?

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March 5, 2014 10:46:47 AM

I have a Xigmatek Gaia cooler (CM Hyper 212 EVO equivalent) installed and I'm not sure if my temperatures are normal. I use the spread method for the thermal paste and made sure it was a thin layer.

Stock speeds w/ TurboBoost (3.4 - 3.8GHz)
Idle: 25-28C
Under Load: 73-75C (Prime95 for 5-10 minutes, 4 cores maxed at 3.6GHz)

Overclocked (4.2GHz)
Idle: 30-32C
Under Load: 86-88C (Prime95 for 5-10 minutes, 4 cores maxed at 4.2GHz)

CPU Multiplier 42
CPU Cache 40
CPU Vcore 1.2
CPU Cache Voltage 1.18
CPU Input Voltage 1.85
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March 5, 2014 10:52:57 AM

88 is pretty high. 72C would be the sweet spot(at least for Sandy Bridge, not sure if Haswell can run hotter safetly). You might try lowering the voltage and see if you can get it stable with a lower voltage. That should help with temps. Be sure to run prime for at least a few hours, some people swear by a 24hr burn in... I'll do about 6 and be lazy 8)
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March 5, 2014 11:02:05 AM

mf Red said:
88 is pretty high. 72C would be the sweet spot(at least for Sandy Bridge, not sure if Haswell can run hotter safetly). You might try lowering the voltage and see if you can get it stable with a lower voltage. That should help with temps. Be sure to run prime for at least a few hours, some people swear by a 24hr burn in... I'll do about 6 and be lazy 8)


Yes, I'm aiming for at least 72C or lower, but it isn't working for me at only 4.2GHz. I heard Haswell runs the hottest so I wasn't sure if my temperatures are normal. I just posted my overclock settings. Do they look correct or am I doing something wrong?
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March 5, 2014 11:26:42 AM

If your CPU voltage is at 1.85 that is WAAAAY to high. Should be closer to 1.25. That will drastically help your temps.
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March 5, 2014 11:31:40 AM

mf Red said:
If your CPU voltage is at 1.85 that is WAAAAY to high. Should be closer to 1.25. That will drastically help your temps.


I think you're confusing the Input Voltage with Vcore. The Vcore norm is 1.25 mentioned in other forums.
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March 5, 2014 11:34:58 AM

Yeah you're right.
Did you just seat the processor? Have you done it before? It doesn't take a lot of thermal paste, and too much can actually hurt temps. It also takes a few days for it to set, where you'll see an improvement in temps after a week or so.
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March 5, 2014 11:38:35 AM

Have you ever tried gaming? I you can game for under 75C, that's normal.
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March 5, 2014 11:41:55 AM

sweenytodd is right. Gaming you're not going to be running the CPU at 100% so you may be safe even with those high temps. Personally I don't want my proc to burn it self out so I aimed for 72C @ 100% load.
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March 5, 2014 11:42:56 AM

mf Red said:
Yeah you're right.
Did you just seat the processor? Have you done it before? It doesn't take a lot of thermal paste, and too much can actually hurt temps. It also takes a few days for it to set, where you'll see an improvement in temps after a week or so.


I installed the heatsink 6 days ago. I guess I'll wait a couple more day to see if there is improvement. The thermal paste layer is thin enough that I could see through it; so I think I did the thermal paste correctly. Maybe I should do the pea method?
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March 5, 2014 11:44:42 AM

I have only played Counter-Strike: Global Offensive and StarCraft 2 so far.

CS:GO under load is around 60-62C with stock speeds.
StarCraft 2 is like 55-56C with stock speeds.

I was kind of afraid of trying them at 4.2GHz.
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March 5, 2014 1:46:54 PM

That should be enough time for it to set. You might try the pea method if its easy to re-seat the heatsink. The techs at my work have told me its the better method. I think it has something to do with the CPU having an indented surface so you want it concentrated in the center. The CPUs have a very slight concave on them for Intel procs iirc.
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