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bad 4790k?

sergerold

sergerold

sergerold

Associate
Joined
28 Jun 2014
Posts
8
Hi everyone

Im cooling a 4790k with a NH-D14 (I'm fairly sure it is on correctly with tim applied properly).

I've been using linpack and prime 95 (small ffts) and the temps push into the high nineties. Is this normal or have I got a bad chip (which I need to return)?

thanks
 
Well firstly what are you volts like? Stock or overclocked? Is there a roughly even speed across all cores heat wise?

Secondly if your motherboard isn't overvolting then it's time to reapply he thermal paste and cooler to make sure.
 
Normal I'm afraid. I've owned two with a k2 cooler and both hit the 90's under the latest p95 ver 28.5. Theese chips just aren't designed to run programs like this in stock configuration.
 
Qitarah said:
Well firstly what are you volts like? Stock or overclocked? Is there a roughly even speed across all cores heat wise?

Secondly if your motherboard isn't overvolting then it's time to reapply he thermal paste and cooler to make sure.
Click to expand...

Apologies. Forgot to mention that there is no oc - just stock (I've not altered any bios settings).

Core temps are within 5-6 degrees of each other. Put a screenshot of core temp here if that helps:

ND6Lgyh.png
 
You could try dropping the voltage a touch, also make sure your on the latest bios for your motherboard. Current version could be feeding it too much. Theese steps won't help an awful lot, its just a design fault with haswell cpus due to using TIM instead of solder between the chip die and heatspreader.
 
sergerold said:
Hi everyone

Im cooling a 4790k with a NH-D14 (I'm fairly sure it is on correctly with tim applied properly).

I've been using linpack and prime 95 (small ffts) and the temps push into the high nineties. Is this normal or have I got a bad chip (which I need to return)?

thanks
Click to expand...


Do not use new 28.5, use older 27.9.
 
Yes AFAIK it says add more support for Haswell as its far too hot IMO.

I had a L3 that got hot at stock to 100c on 28.5.
 
jh30uk said:
Yes AFAIK it says add more support for Haswell as its far too hot IMO.

I had a L3 that got hot at stock to 100c on 28.5.
Click to expand...

Those are insane temperatures. Stress testing is pretty pointless to be honest as they could still be unstable in some games.
 
Probably a bit obvious, but is the cooler seated correctly? (I know you mentioned it is in the OP, but I thought mine was when it wasn't - dropped my temps like 15 Degrees :eek:) Also, as above it could be software related issue. I had OCCT a while back and it was saying core 2 of my 3770k was hitting 123 Degrees while the others were a steady 60-65.
 
if you lay the case on its side, motherboard flat
so the weight of that huge heatsink is spread across even and see if it affects temps
that should tell you if its mounted ok or not

but setter having had 2 with similar cooler and saying its normal id take it as normal e_e
 
see my post, this overheating is normal for this cpu...easy to fix
the stress test results look accurate to me, this isn't a software issue
 
Last edited:
I'm sorry, but temps this high on a cooler as mighty as the D14 are NOT normal. The whole point with Devil's Canyon is improved TIM and heat spreader to fix a good chunk of Haswell's thermal issues.

Strapped to a H105 with fans at 55%, the 4790K in one of my client builds at stock never breaks 60 degrees at full load (about 1.19V goes through at stock on mine). Running at 4.7GHz at 1.223V I stay around 65 degrees with a fan speed bump to about 60%. Both loads were created with AIDA64 and OCCT. I even hovered around 75 degrees with 70% fan speed when I tried to hit 5GHz.

I may have a little luck with the reasonably low voltage for 4.7GHz, but my own experience and a lot of reviews out there all say the new TIM and heat spreader do a much better job at getting the heat out. DC is what Haswell should have been to begin with.
 
You've been incredibly lucky then. Because the two I've owned are incredibly hot like many others on here. Hence why people are still delidding theese chips.
 
i suppose when they assemble it, one of the guys gets it dead right by mistake, but the usual way it is to put too much on.... more likely, too much glue between the lid and the cpu
 
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