Solved Overheating Intel i7 4930?

October 16, 2014 at 14:06:46
Specs: Windows 7 64b, 16GB DDR3
I'm getting very different readings of my CPU's temperature depending on the program that I use. My gut feeling is that ASUS' program is more accurate, since it came with the motherboard. (Extreme IV) Could I be wrong? If so, anything that I should buy to fix this? Case is a Rosewill Blackhawk Tower. I don't remember buying anything else than a heatsink. Not sure if necessary, but PSU is a 750W Rosewill. Maybe a new case?

Screenshot: :
Same discrepancy with Speccy:

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October 16, 2014 at 18:42:42
Very odd, the only thing that I can think of is that the ASUS software is giving you the temp. of the lowest core, though I have no clue why...

Doubt it's the case, seems like it has pretty good cooling.

33° C isn't bad considering you're running two 980s, personally I idle at around 20° - 25° according to HWMonitor but I don't have two GFXs.

Check this video out:

Also, how many fans are you running? If the temps really bother you, you could consider water cooling, but I don't think you really need to.

What aftermarket heatsink did you use? Did you make sure to properly apply the thermal compound? (You did use thermal compound, right?)

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October 16, 2014 at 19:06:22
I'm only running the five fans that came with the tower. Maybe the OEM ones aren't very good? It has space for five additional fans.

My heatsink is the following: -- I have no idea about the thermal paste, it was assembled by a computer technician. I'm going to guess, yes.

Another comparison screenshot:

By the way, thanks for your help.

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October 16, 2014 at 19:13:58
✔ Best Answer
If a professional did it, it's likely fine.

Yeah, the fans that come with the case tend to be pretty cheap, only ~800 RPM, maybe 30 CFM.

What configuration do you have the fans set up in? You generally want to get a smooth front/back or bottom/top airflow, with slightly more exhaust than intake.

Yeah, that heatsink is likely quite a bit better than the stock cooler.

When were those temps taken? Are they idle, or a while after gaming?

Overall, I think you'll be fine.

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October 16, 2014 at 19:33:10
While idle. I have no idea how the fans are set up, Disaster looms each time that I try to open a computer physically, so I tend to rely on professionals.

I'm thinking about replacing the five fans, and adding five others. Do you have any suggestions?

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October 16, 2014 at 21:29:42
Replacing fans with higher performance fans is almost always a good idea if you are running a bit warm, especially when running higher end graphics and/or overclocking BUT, be VERY careful about adding MORE fans since the wrong fan set up is worse than what you have now. You should have one or two exhaust fans at the upper rear and with bottom mounted power supplies, one or possible two top mounted exhaust fans. Then you may want one or possibly two front intake fans feeding fresh air directly over the hard drives to the graphics cards. Make sure that the total CFM's for exhaust fans is significantly higher than the total CFM's for the intake fans and DO NOT use side mounted fans since this disrupts the smooth air flow from low in the front through all heat generating components and out the rear top area. More is not better though better quality quiet fans (low DB's) that have higher CFM ratings are a good investment.

You have to be a little bit crazy to keep you from going insane.

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October 17, 2014 at 05:49:00
If you're unsure of the accuracy of your monitoring software, try checking the temp readings in the BIOS.

"I'm only running the five fans that came with the tower"

Only?? I only run ONE case cooling fan....120mm exhaust in the rear. All my towers (4 systems) have top mounted power supplies so the PSU fan acts as an additional exhaust, no other fans are necessary. Intake fans generally aren't required however a direct source of fresh air to the CPU via a duct in the side panel is a good thing to have. No fan in the duct is required. Assuming the opening in your side panel is directly above the CPU, I would remove the fan & replace it with a duct.

"I'm thinking about replacing the five fans, and adding five others. Do you have any suggestions?"

Waste of time & money. You already have too many fans. And your CPU temp is fine, so I really don't see the need to make any changes other than the air duct.


"personally I idle at around 20° - 25°"

Since average room temp is 20°C (68°F), it's highly unlikely your CPU idles at 20°.

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October 17, 2014 at 08:20:14
Maybe our definition of idling is different, but I took these temps:

Just for reference, 0:01 is one minute not one second, the chart is over about 90 seconds.

Had some P2P software running, the monitoring software running, and a YouTube video playing...average CPU usage ~10%.

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October 17, 2014 at 09:03:02
I just read from numerous different sources that CPUTIN can be misleading, conversely to individual Core readings. Mystery resolved, I guess. Thanks for everyone's input.

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October 17, 2014 at 10:17:55
"Maybe our definition of idling is different"

IMO, idling is 0% CPU usage for an amount of time long enough for the CPU to reach it's lowest temp.

"but I took these temps"

I'm unable to view your link at this time so I have no idea what you're showing. But a CPU produces some heat even at idle, so going back to your claim in response #1, I don't see how it would be possible for a CPU to be 20°C if the room temp is 20°C, at least not with air cooling.

message edited by riider

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October 18, 2014 at 13:16:16
I never said that my CPU idles at 20°, I said it idles between 20° to 25°, meaning an average idle temp. of 22.5°. The imgur link is a chart of my idle temps.

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