My i7 2600K is hot

Zenoth

Diamond Member
Jan 29, 2005
5,202
216
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I built my new system yesterday (well part of it, three components are new, namely the Motherboard, CPU and Memory), and everything went fine, before freshly installing Windows I made sure to configure the BIOS properly (and as a side note EFI BIOS, with the GUI and all, is awesome, definitely better in my opinion than having to browse through BIOS options with the keyboard arrows, and the GUI is very user-friendly, good job there ASUS).

I'm using the default Intel's cooler, but I removed the default thermal paste they applied (with 99% Isopropyl Alcohol) with brand new Arctic Silver 5 (I had some, but it was around seven years-old or so and went through all sorts of ambient room temperatures and humidity conditions over time, I preferred simply buying a new one, and it's cheap). So even though it's the cheap Intel's cooler (seriously, it looks and feels cheap, well it simply is cheap, I don't get why they're packing their processors with such ridiculous cooling solutions) at least there's good thermal paste at work behind (or rather below) it, and I made sure to apply just a bit of it, there's a thin layer covering the surface of both the cooler's and the CPU's heatsink, which formed a nice circle-like shape of the layer in question on both surfaces, which I believe means that it was applied correctly.

So, with all that said, according to the BIOS' Monitor the CPU idles at anywhere between 63ºC to 66ºC, which completely caught me by surprise. But something else surprises me, is that according to the latest version of Hardware Monitor all four cores idle at or around 37ºC (by a margin of about 2ºC). Those are the temps I took note of from yesterday after installation and configuration of Windows (since I installed it anew), so for the night and beyond, until I came back home, I decided to just let a game run, with the monitor (the screen, not the program) turned off, and see if once I'd be back home the game will still run and if the temperatures weren't sky-high... and it wasn't the case, but still according to HWMonitor, which then reported temperatures (while the game was running) of 43ºC or so on all four cores.

So after that I immediately shut Windows down to get back in the BIOS, and I looked at the temps, only to be blown away by reported temperatures of nothing else than 78ºC...

What's going on exactly? Which temps to "believe"? And if both reported temps are "right" then why in the great heck is the CPU running and the system not crashing or anything while running at 78ºC? I haven't been upgrading my stuff since the past three years, have I missed something regarding new CPU materials that are super efficient and could run flawlessly on the surface of the Sun or something? With my previous E8400 even with a third party cooler it would have crashed a hundred times had it been running even close to 60ºC at any given time (or something was wrong with that one, I guess).

I need some advices and enlightment please, is everything alright? As a side note, I'll buy a third party air cooler next month, so if it's * not * going well at least it won't last for too long.
 

Seven

Senior member
Jan 26, 2000
339
2
76
The ASUS EFI does not report the correct temps. The HWMonitor shows the correct temps. Your temps seem fine and there is nothing to worry about. The 43C while gaming is a decent temp for a stock cooler.
 

Seven

Senior member
Jan 26, 2000
339
2
76
My EFI BIOS also reports 40C idling temps, but the actual temps are a lot lower in Windows.
 

betasub

Platinum Member
Mar 22, 2006
2,677
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BIOS is not fully idle, as it doesn't implement power saving modes that give the proper idle temps in a supported OS.
 

Drsignguy

Platinum Member
Mar 24, 2002
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The ASUS EFI does not report the correct temps. The HWMonitor shows the correct temps. Your temps seem fine and there is nothing to worry about. The 43C while gaming is a decent temp for a stock cooler.


Correct, Bios isn't a real reliable source to monitor temps from. Just make sure you do have installed your HS/f correctly as the stock coolers can be sometimes a pain. Also, get "Real Temp" to monitor the cpu's temp's and make sure they coincide with HW monitor to give yourself a second opinion.
 

Dadofamunky

Platinum Member
Jan 4, 2005
2,184
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Completely ridiculous that the UEFI would do that. Sheesh. In my experience I have never known a BIOS temp measurement to be accurate.
 

PreferLinux

Senior member
Dec 29, 2010
420
0
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My 2500K reaches ~80 degrees C with LinX in Windows Vista, not sure about what it gets to on Linux (which gets ~2x the GFLOPS). Stock speeds, cooler and Gigabyte fan speed control profile.