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Intel i7 4790K temperature question.

sean_seany

sean_seany

sean_seany

Associate
Joined
27 Feb 2014
Posts
31
Location
Kent
Hey ;)

I purchased a PC from OCUK back in November and have noticed the my CPU temp is getting high.

Its an Intel Core i7 4790K @ 4.00GHz and is currently running at 49 °C. Its around that temp when idle as well.

If I fire a game up , it hits between 80-100 °C depending what game I'm playing. I'm not getting any shut downs, blue screens or any noticeable lag and yes I've stopped playing games for the moment !

I have no OC on the CPU and have just done a clean install and all drivers are updated ( BIOS are F4)

Is this normal or do I have something to worry about ?

Heres my PC's specs :

Operating System
Windows 8.1 64-bit
CPU
Intel Core i7 4790K @ 4.00GHz 51 °C
Haswell 22nm Technology
RAM
24.0GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard
Gigabyte Technology Co., Ltd. Z97MX-Gaming 5 (SOCKET 0) 28 °C
Graphics
SAMSUNG (1920x1080@60Hz)
Intel HD Graphics 4600 (Gigabyte)
4095MB NVIDIA GeForce GTX 970 (MSI) 43 °C
Storage
1863GB Seagate ST2000DM001-1ER164 (SATA) 35 °C
111GB KINGSTON SH103S3120G (SSD) 32 °C
1863GB Samsung M3 Portable USB Device (USB (SATA)) 34 °C
Optical Drives
ATAPI iHAS124 E
PSU
Super Flower Golden Green HX 650W 80+ Gold PSU
Case
BiTFenix Colossus Micro-ATX

Any ideas please ?

Thanks for reading.
 
Are you still using the stock heat sink / cooler? If yes, do you also have the "boost" function on your mobo enabled as that has a habit of overvolting which doesnt work well with the stock HSF
 
Multi core enhancement or similar. This would set the turbo to 4.4 on all 4 cores (so technically a slight overclock, as turbo is only suppoed to be 4.2 on 4 cores).

What heatsink are you using? the Stock intel one is barely fit for purpose on this chip.

Also check what voltage the board puts on the CPU. some boards significantly overvolt devils canyon chips when on older BIOS.
 
I got OCUK to build the rig from a configurator

So I guess its standard ? What voltage should it be on the CPU please. As you can tell I know sod all about this stuff ! I'm only just getting into all this to be honest, so sorry for the questions. Shouldnt all of this been done for me when I got OCUK to build it.

I'm on F4 BIOS and from what I gather that's the up to date one. Going to check my BIOS and will post back with the info.
 
Your temperatures are definitely too high.

First off I'd take off the side panel of your case, count the number of fans you can see and report back here. Also check all the fans are actually spinning.
 
I have 3 fans , one at the very top of the picture , one of the right hand side and the silver one in the middle. (top and right are sucking air in).

Should the silver one in the middle be moving from side to side....its not.

Two fans on the GTX970, but I guess thats unrelated.

http://imgur.com/Jqgxf0z

The case it self is very cool, cold to touch even.
 
Hi sean.

Is the bios you are running the latest for your motherboard? Gigabyte boards are notorious for putting very high vcore into the cpu on early bios revisions.
 
Voltage is fine (1.18v), so no need to look at bios update.
Cooler looks to be a Megahalems.

What isn't visible in the picture, nor from sean's description if there is a fan attached to the cooler (As they are sold without)

Could you clarify / add picture of the top section?
 
I think your right Ronald : http://www.overclockers.co.uk/showproduct.php?prodid=HS-005-PL . That looks like what I have. Where would the fan be located on the cooler.

My PC is turned on its side with the side cover removed for the pic. I cant see it from the rear , top or the other side at all.

SpeedFan reports these RPM's as follows :

Fan 1 : 803
Fan 2 : 0
Fan 3 : 0
Fan 4 : 599
Fan 5 : 594

Hope that helps.
 
Might be a silly question but what are you using to gauge your temps because it could be wrong!

The megahelms is what I used to have and its a very good cooler. Your cable management needs improving as its restricting airflow especially in a tiny case and what the hell is that thick black cable bottom right of picture ?
 
Took me a while to get my head around what we're seeing.
The red is the shroud of the MSI 970 GTX with the SLI connector just visible at top..

The fan on the heatsink should be moving air in the same direction (into the heatsink) as the one attached to the case looks to be intake.

Worth noting the PSU appears to be exhausting out of the case, so that is fine.
 
varkanoid said:
Might be a silly question but what are you using to gauge your temps because it could be wrong!
Click to expand...
Could be worth using hwinfo64, as that should show if CPU is actually throttling (which it should do hitting 100)

The megahelms is what I used to have and its a very good cooler. Your cable management needs improving as its restricting airflow especially in a tiny case and what the hell is that thick black cable bottom right of picture ?
Click to expand...

Cables are not great, but the way it is all set up it doesn't look like the system will be trying to move much air through the mess.
 
I have been checking temps in BIOS , HWiNFO, Speccy, Intel extreme tuning utility, RivaTuner. They all give a pretty similar reading. Could be a fault in the sensors maybe ?

As for the cable management and what does what, Not got a clue as OCUK built the PC for me. To be honest I've already sent this back once with another issue unrelated. I've been reading up and the overheating seems a common problem on the Intel forums.

I agree its a compact case, but the idea was to have it in my front room and use it as a couch gaming / HTPC rig next to my TV.

As you can imagine, I'm not overly impressed and will be ringing customer support shorty and see what they say.

I only want to play some vidya and have a beer whilst doing it lol.
 
Have you looked at what speed/profiles the fans are set to in your BIOS? Maybe they were turned down for the system to be very quiet?

I'd try turning them up to full speed in your bios, just to see if it helps.

Failing that, I'd probably recommend you RMA your system to ocuk - as something clearly isn't right with those temperatures, and the system is so compact that it's hard to work on it yourself without breaking anything, unless you have experience of building these small factor PC's.
 
The case size should be no excuse, I have very simular components in a 250D, which actually is slightly lower volume... and my cpu cooler is... massively smaller?

Fans:
- 92mm Noctua CPU
- 200mm Bitfenix spectre pro exhaust
- 2x 120mm Parvum F1.0 intake - Fan stop below 40C cpu.

GPU fan stop below 60C, PSU fan stop at low load (Not sure the system can generate enough load, PSU is massively over provisioned due to offer at the time)
I have tweaked the system for low idle power:
- Vcore -0.035 Adaptive
- Cache minimum 800mhz, was fixed to 4000.

Results in 3.5W cpu package power at idle, 31C
4K Youtube 13W cpu package power, 45C max, average < 40C
 
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