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i5 4670K with H100i @ 4.6GHz Idle & Load Temps Okay?

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February 19, 2014 10:38:00 AM

Just wondering if the temps I am experiencing are normal for the overclock I have right now. Idle is anywhere from 25C - 30C, yet under load with Prime95, I'm looking at 75C to 80C. Is this normal, or should I dial back a bit, perhaps use aftermarket thermal paste? Let me know.
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February 19, 2014 10:39:51 AM

yes this is normal the overclock you made is too high but make sure your case has good intake fan and that Radiator fans have good static pressure
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February 19, 2014 10:42:03 AM

Yeah, I was just stress testing to make sure it's stable. I'm 4.6GHz at 1.2V. Will dial back to 4.4. I have 7 Corsair SP fans, and the H100i in an NZXT Phantom 530. Air cooling is more than sufficient lol.

Any suggestions to help bring down temps? Thanks!
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February 19, 2014 10:44:17 AM

Nothing wrong with your temps and 4.6GHz is a pretty nice overclock on a 4770K.

Where is your voltage maxing out?
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February 19, 2014 10:45:35 AM

heliontide said:
Yeah, I was just stress testing to make sure it's stable. I'm 4.6GHz at 1.2V. Will dial back to 4.4. I have 7 Corsair SP fans, and the H100i in an NZXT Phantom 530. Air cooling is more than sufficient lol.

Any suggestions to help bring down temps? Thanks!


I say again. Your temps are decent and perfectly safe!
You REALLY do not need to dial it down.

Even your voltage is amazingly low!

You have a great chip and a solid overclock. Hell you could even go more. I would push for 4.8GHz, even if its just to see the results.
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February 19, 2014 10:48:26 AM

Novuake said:
heliontide said:
Yeah, I was just stress testing to make sure it's stable. I'm 4.6GHz at 1.2V. Will dial back to 4.4. I have 7 Corsair SP fans, and the H100i in an NZXT Phantom 530. Air cooling is more than sufficient lol.

Any suggestions to help bring down temps? Thanks!


I say again. Your temps are decent and perfectly safe!
You REALLY do not need to dial it down.

Even your voltage is amazingly low!

You have a great chip and a solid overclock. Hell you could even go more. I would push for 4.8GHz, even if its just to see the results.


Yeah, I read online and watched a few ASUS videos that corresponded to the Hero board I bought. Everyone seems to think if you can do 4.6 at 1.2V, you have a solid chip and it'll overclock like a beast. Very good news, indeed. I'm just wondering if maybe 80C+ is a bit on the hot side, or if my H100i isn't really doing its job as a water cooling solution. I'd expect those temps with air, not water. Am I wrong?

Appreciate the replies :) 
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February 19, 2014 10:53:59 AM

heliontide said:

Yeah, I read online and watched a few ASUS videos that corresponded to the Hero board I bought. Everyone seems to think if you can do 4.6 at 1.2V, you have a solid chip and it'll overclock like a beast. Very good news, indeed. I'm just wondering if maybe 80C+ is a bit on the hot side, or if my H100i isn't really doing its job as a water cooling solution. I'd expect those temps with air, not water. Am I wrong?

Appreciate the replies :) 


The thing is that the H100i does not perform much better than large air coolers like the Noctua NH-D14 unless you crank up the fan speed.

You can give that a try, just make sure that the SP120 fans on the H100i are the performance version and NOT the normal silent ons that come with it in the original packaging.

You should drop at least 6-10C if you use the performance fans with fast fan speed.

Be warned, its loud.
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February 19, 2014 10:54:32 AM

With Intel using thermal paste(and not always that well done) from the CPU core to the IHS and not welding/soldering them together any more, those temps are actually quite good.
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February 19, 2014 11:00:40 AM

Novuake said:
heliontide said:

Yeah, I read online and watched a few ASUS videos that corresponded to the Hero board I bought. Everyone seems to think if you can do 4.6 at 1.2V, you have a solid chip and it'll overclock like a beast. Very good news, indeed. I'm just wondering if maybe 80C+ is a bit on the hot side, or if my H100i isn't really doing its job as a water cooling solution. I'd expect those temps with air, not water. Am I wrong?

Appreciate the replies :) 


The thing is that the H100i does not perform much better than large air coolers like the Noctua NH-D14 unless you crank up the fan speed.

You can give that a try, just make sure that the SP120 fans on the H100i are the performance version and NOT the normal silent ons that come with it in the original packaging.

You should drop at least 6-10C if you use the performance fans with fast fan speed.

Be warned, its loud.


Yeah, I am well aware! :) 

I have 2x performance edition Corsair SP fans installed on the rad as intake, another as intake on the side panel, 2 more quiet editions drawing air underneath from the bottom, the large intake fan on the front from NZXT that came preinstalled, and an AF140 performance edition as an exhaust on the back.

Also, I just ran AIDA64 for about 15 minutes. My temps only hit around 50-65C under a system stability test. I'm thinking I'm doing just fine. Yes? :) 

Oh, and while I have your attention, is it normal for my multiplier to jump down to 8x when my PC is idle? At times, CPU-Z is telling me my CPU frequency is running at 800MHz with an 8x multiplier. Odd. Power saving solution? Speedstep?
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February 19, 2014 11:02:22 AM

nukemaster said:
With Intel using thermal paste(and not always that well done) from the CPU core to the IHS and not welding/soldering them together any more, those temps are actually quite good.


I also read about this somewhere. I was thinking about delidding it, but the thought of doing that terrifies me.
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February 19, 2014 11:08:56 AM

heliontide said:

Yeah, I am well aware! :) 

I have 2x performance edition Corsair SP fans installed on the rad as intake, another as intake on the side panel, 2 more quiet editions drawing air underneath from the bottom, the large intake fan on the front from NZXT that came preinstalled, and an AF140 performance edition as an exhaust on the back.

Also, I just ran AIDA64 for about 15 minutes. My temps only hit around 50-65C under a system stability test. I'm thinking I'm doing just fine. Yes? :) 

Oh, and while I have your attention, is it normal for my multiplier to jump down to 8x when my PC is idle? At times, CPU-Z is telling me my CPU frequency is running at 800MHz with an 8x multiplier. Odd. Power saving solution? Speedstep?


You are doing great.

And yes, power saving solution, that is a very good features.
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February 19, 2014 11:16:47 AM

Novuake said:


You are doing great.

And yes, power saving solution, that is a very good features.


Thanks! Glad to hear.

Would you recommend using the XMP profile in the AI Tuner to utilize the 1866 RAM timings, as my mem clocks are at 800 right now? Or would overclocking the RAM not be necessary? Sorry to keep firing questions off. But, if I'm stable at 4.6, I might as well get as much out of it as possible, no?
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February 19, 2014 11:31:50 AM

800MHz x 2 = 1600MHz.

You can either use the XMP Profile to get 933MHz /1866MHz or you can just manually set it to that speed. Makes no difference, but you SHOULD definitely do it.
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February 19, 2014 11:42:23 AM

Novuake said:
800MHz x 2 = 1600MHz.

You can either use the XMP Profile to get 933MHz /1866MHz or you can just manually set it to that speed. Makes no difference, but you SHOULD definitely do it.


Okay, great. Will do. Basically, all I have done is increased multiplier to 46, and increased voltage to 1.2 -- anything you recommend fiddling with at all? Cache multiplier or cache voltage? Input voltage?

Thanks so much for the help so far, by the way!
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February 19, 2014 11:45:35 AM

heliontide said:

Okay, great. Will do. Basically, all I have done is increased multiplier to 46, and increased voltage to 1.2 -- anything you recommend fiddling with at all? Cache multiplier or cache voltage? Input voltage?

Thanks so much for the help so far, by the way!


Not needed for this sort of overclock.

WHen you run your stress test just check in CPU-z where voltage is maxing out.
If it not to high then you are good to go.
Its normal for it to go a little above 1.2v, so do not stress too much.

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February 19, 2014 11:49:58 AM

Novuake said:
heliontide said:

Okay, great. Will do. Basically, all I have done is increased multiplier to 46, and increased voltage to 1.2 -- anything you recommend fiddling with at all? Cache multiplier or cache voltage? Input voltage?

Thanks so much for the help so far, by the way!


Not needed for this sort of overclock.

WHen you run your stress test just check in CPU-z where voltage is maxing out.
If it not to high then you are good to go.
Its normal for it to go a little above 1.2v, so do not stress too much.



Sounds good! Thanks again, I'll be sure to come back and let you know how things turn out after a real burn-in. So far it has survived IBT, AIDA64 and Prime95 for a while, so I'll give it a real whirl and see what happens.

:) 
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February 19, 2014 1:46:58 PM

Prime95 after 3 hours got my CPU to around 78-85C, depending on the cores. AIDA64's FPU test had my cores at around 82C, after only a few minutes. Max temp in CoreTemp was 89C in Core0. Funny. Core0 seems to run much hotter than the rest. In my last AIDA test, Core0 was at 84 Max, Core1 was 76, Core2 was 77, and Core3 was 68. Is this normal? Or would I have to reseat my H100i with aftermarket TIM?
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a c 131 K Overclocking
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February 19, 2014 2:12:00 PM

Nah its normal. Most likely just the internal paste between CPU and IHS. You would need to de-lid to fix that.
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