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Heat issues with overclock on new 3930k.

post #1 of 3
Thread Starter 
I just received my 3930k last night and I've been trying to get it to at least 4.5ghz with my nh-d14. At stock settings it heats up to the mid-high 60's in prime95 which seemed kinda high to me but for a hex core I could almost believe it. I've gotten it to 4.3Ghz now with 1.3v but it seriously heats up to the high 80's in prime95 which at that point I really started thinking something is up as I've read people claiming getting 70's with this cooler with a decent bit higher vcore than that. I've reapplied thermal paste several times, every time the paste is spread out decently by the heatsink so it is extremely thin in the middle and doesn't reach over the sides so I'm not putting to little or to much and the heatsink is making good contact as there isn't one side with a thicker layer or anything and it doesn't really move at all when I try to twist it when it's bolted down. This was cooling my older 3820 in the upper 60's in prime95 at 4.3Ghz, essentially the same vcore and the exact same method of applying thermal paste.(a very small line down where the die would be.)

So my question, are these normal temps for 3930k's with this cooler? Are other people just using hyperbole and not being exactly accurate with their own temps? Or is there something up that I should be looking out for, because I do know these suck a good deal more power than the 3820 so I would expect a jump in temps but this seems rather extreme.

Thanks in advance for any help.
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post #2 of 3
NO, those are not normal temps. Most idle in the 30-36C range. At 4.3 @ 1.3 Vcore, running prime95, temps should be in the 70s or lower.
Given good case airflow, something is wrong with the mount or TIM (too much?). Was there a protective clear plastic film over the bottom of the HS and was it removed?

The D14 is nearly as good a cooler as my H100, so here's a comparison for you at 4.2, Vcore 1.320:


Edited by OS-Wiz - 4/11/13 at 2:19pm
The Money Trap
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CPUMotherboardGraphicsRAM
i7-5820K ASUS X99-Deluxe 2 x EVGA GTX980 SLI 4 x 4GB Corsair Vengence DDR4 2400 
Hard DriveHard DriveHard DriveOptical Drive
Games = Crucial 256GB M4 SSD OS = Samsung 256GB 830 SSD Backup Western Digital HDDs  Samsung 223 
CoolingOSMonitorPower
Phanteks PH-TC-14PE  Win 7 x64 Ultimate  Dell U2412M 1920x1200 Antec TPQ 1200W 
CaseOther
Cooler Master HAF 932 UPS: APC BackUPS XS1500 
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The Money Trap
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-5820K ASUS X99-Deluxe 2 x EVGA GTX980 SLI 4 x 4GB Corsair Vengence DDR4 2400 
Hard DriveHard DriveHard DriveOptical Drive
Games = Crucial 256GB M4 SSD OS = Samsung 256GB 830 SSD Backup Western Digital HDDs  Samsung 223 
CoolingOSMonitorPower
Phanteks PH-TC-14PE  Win 7 x64 Ultimate  Dell U2412M 1920x1200 Antec TPQ 1200W 
CaseOther
Cooler Master HAF 932 UPS: APC BackUPS XS1500 
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by OS-Wiz View Post

NO, those are not normal temps. Most idle in the 30-36C range. At 4.3 @ 1.3 Vcore, running prime95, temps should be in the 70s or lower.
Given good case airflow, something is wrong with the mount or TIM (too much?). Was there a protective clear plastic film over the bottom of the HS and was it removed?

The D14 is nearly as good a cooler as my H100, so here's a comparison for you at 4.2, Vcore 1.320:


Yup, the cooler has had the plastic cover removed from it. Been used on a 3820 which got temps that were perfectly fine for the clocks. I'm honestly at a loss here because as I said when removing the hsf the thermal paste is spread very thin from the hsf pressure and isn't overflowing off the sides, it's even across the entire surface as well so it isn't like it's not making completely contact in one corner or something. I reseated it multiple times and every time it gave me essentially the same temps, the heatsink is very secure and I've tried wiggling it and moving it while it's screwed in and it doesn't budge so as I said, I'm at a loss as to what could be causing this. I've got decent cable management and there aren't any cables in the way of air flow and I've got 4 140mm fans so airflow isn't an issue especially considering I haven't touched anything else aside from replacing the cpu last night.

EDIT: Got home and reseated it again, same results. I really don't get *** is going on here. I'm getting similar temps as you at 1.16v(reporting in cpuz, I'm at 1.2v in the bios) for 4.1Ghz and it still sky rockets into the 80's if I go for 4.3 since I need to move the voltage towards 1.3v. Cleaned the bottom of the hsf and IHS very well and once again when I lifted it up the thermal paste was spread just enough around the die and not flowing over the edges and was very even. I just don't get it, this was an awesome cooler on my 3820 keeping it below 70c in prime95 at the same vcore as what I'm trying to push 4.3Ghz on this.
Edited by scyy - 4/11/13 at 6:21pm
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