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***Intel i7 4790K Owners thread***

After 3 months outside the country I finally got my build put together yesterday, CPU is a Malaysia 2014 one judging from the code. Stuck it right at 4.5Ghz, 1.16v nice and cool 25 - 27 Celsius idle, I think 71 Celsius max on the hottest core in Asus Real bench and Aida64 using a Cryorig R1 Ultimate.

Pretty Happy, thought it would run hotter than that!

Did try to log into windows with 4.7Ghz on the same voltage, but it blue screened before it hit the desktop. I'm pretty lazy with tweaking overclocks so I will leave it at that for now! :)
 
SouthEastBlue said:
After 3 months outside the country I finally got my build put together yesterday, CPU is a Malaysia 2014 one judging from the code. Stuck it right at 4.5Ghz, 1.16v nice and cool 25 - 27 Celsius idle, I think 71 Celsius max on the hottest core in Asus Real bench and Aida64 using a Cryorig R1 Ultimate.

Pretty Happy, thought it would run hotter than that!

Did try to log into windows with 4.7Ghz on the same voltage, but it blue screened before it hit the desktop. I'm pretty lazy with tweaking overclocks so I will leave it at that for now! :)
Click to expand...


what's your room temp pal, i have a dark rock pro 2 which isnt far behind your heatsync and my idle temps are 42c - no matter what volts i set it to or power settings i change, my ambient room temp is 27c, im running a asus maximus hero ii, i may purchase the board you have and see if the temp changes, im sure it's this asus board
 
noobftw said:
delided my rubbish chip and temps dropped 15c at load :) well happy, these guys that put the paste on want a slap across the face big time lol
Click to expand...

I'm thinking about doing this too, getting pretty high temps (80's) with small fft's/linpack with avx.

Most of the other large data set stress tests are in the 50's-60's
 
Datass said:
I'm thinking about doing this too, getting pretty high temps (80's) with small fft's/linpack with avx.

Most of the other large data set stress tests are in the 50's-60's
Click to expand...

Don't use those apps on haswell they are bad for the chip use H.264 stress test or asus real bench.
Prime IBT etc are no go areas for haswell they can dangerously overvolt.

Windows experience index is great for checking stability too strangely.
 
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C64 said:
Don't use those apps on haswell they are bad for the chip use H.264 stress test or asus real bench.
Prime IBT etc are no go areas for haswell they can dangerously overvolt.
Click to expand...

Ahh I never knew that. My vcore stays pretty steady at 1.28 while running that though? Or are you talking about coltage elsewhere on the chip?

There's been a few other ppl with lower temps & similar voltage when using small fft on prime, makes me think there's either bad contact area that needs lapping or the tim has bad contact with the heatspreader
 
Tried OCing the other day, on my Noctua NH-D15 the other day. 4.5Ghz at 1.35V got me 80+ degrees in IBT. From trying it on stock I found that realbench gave lower temps. I was advised to reseat the cooler and reapply the thermal paste, but not having isopropyl alcohol to clean up the paste has meant I haven't had the opportunity for it. Mines an L4 batch, what temps are people getting on IBT? And where's a good place to get a hold of some isopropyl alcohol since I can't find any place that stocks it?
 
95c at stock with both 4790k's I've had using p95 small fft, (ver 28.5). As mentioned, stuff like p95, ibt or anything that uses AVX instructions are a no no for haswell. Moreso if using offset or adaptive vcore. Theese methods add on an extra .1v at load. Coupled with the pasted ihs assembly of theese chips, its a surefire recipe for very high temps. Only way to cure it is to delid the CPU and use liquid metal paste on the die. But in normal tasks, theese chips are fine temp wise.
 
Just wasted the last 4 days of my voltage tweaking...

Messed around with VCCIN (inputV) and Digital IO / Analogue IO. Forgot I messed with VCCIN and spent ages messing around with IO voltages and wondering why realbench kept crashing when it was low VCCIN all along.

*facepalm.

I'd say lesson leant, but the temptation to change more than one thing at a time is just too strong, so I'll know I'll do it again :P

Really wanna get all the "other voltages" off auto and nailed down before I delid and look for 4.8-4.9GHz 24/7 :)

I'm fully aware that running multiple stress tests is probably going to to more harm than shaving .1v off cache voltage will do good, but I just like the feeling of knowing everything is as good as it can be.
 
mahius said:
Tried OCing the other day, on my Noctua NH-D15 the other day. 4.5Ghz at 1.35V got me 80+ degrees in IBT. From trying it on stock I found that realbench gave lower temps. I was advised to reseat the cooler and reapply the thermal paste, but not having isopropyl alcohol to clean up the paste has meant I haven't had the opportunity for it. Mines an L4 batch, what temps are people getting on IBT? And where's a good place to get a hold of some isopropyl alcohol since I can't find any place that stocks it?
Click to expand...

I got a 250ml bottle of 99.9% IPA from a popular auction site for a negligible cost. I imagine it will last me a decade or so.

L4 means very little, its just the year it was manufactured.

L352 vs L401 only means the second chip was assembled one week later than the first.

Having said that, I think most of us can agree that the chips generally got better with time.
 
Very pleased with my load temps.

loadtemps.jpg
 
Put my rig together yesterday

i7 4790k (Vietnam)
ocuk 280mm+ AIO Cooler
16gb Corsair 2400
Sapphire Tri oc 290X

Mild overclock at moment to 4.4ghz

In witcher 3 at 1440p ultra Max CPU temp recorded was 60oc

AIO fans are barely ticking over too :)
 
Its a lot cooler today than of late, so I thought id have a look at 4.8GHz+ before delidding.

Unfortunately, it doesn't look like its going to be worthwhile to be honest.

4.8GHz looks to need more than 0.05v more than 4.7GHz did... While voltages will still be well in the safe zone, it just isnt really worth the hassle or the volts.

I've scrapped the delid plan, and I'm sticking with my 4.7GHz @1.214v profile for 24/7 operation.

The bellow profile has passed 8hr realbench and lots of hours of gaming, so I'm confident to call it 100% stable for my uses.

30c67n4.png

EDIT - fail screenshot with start menu in the way *facepalm.
 
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new boy said:
Its a lot cooler today than of late, so I thought id have a look at 4.8GHz+ before delidding.

Unfortunately, it doesn't look like its going to be worthwhile to be honest.

4.8GHz looks to need more than 0.05v more than 4.7GHz did... While voltages will still be well in the safe zone, it just isnt really worth the hassle or the volts.

I've scrapped the delid plan, and I'm sticking with my 4.7GHz @1.214v profile for 24/7 operation.

The bellow profile has passed 8hr realbench and lots of hours of gaming, so I'm confident to call it 100% stable for my uses.

30c67n4.png

EDIT - fail screenshot with start menu in the way *facepalm.
Click to expand...

That's a decent chip so ye. Wouldn't bother with delidding as its not worth damaging your good chip.
 
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