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

so been playing with this new i7 4790k on a z87 sniper 5 board and I am a little :(

At stock it really nice I have a profile saved at 1.165volts @4.4ghz which is really nice.

I have tested at 1.225volts at 4.5ghz stable passed every thing I hit it with so could try to lower volts.

But when I try 4.6ghz I am finding it hard to stable it and 4.7ghz no go.

So is my chip crap or is my z87 not really supported the 4790k erm.
 
Seems good low volts for stock and around 4.6GHZ you are going to possibly need do a little tweaking to get it to be stable.

I do not know what its called on Giga Mobos but you may need raise the voltage that is for CPU now at around 1.7v to 1.8v or even safely 1.9v, its called CPU Input Voltage or CPU VRM volts AFAIK.

There is other voltages to raise also but I advise you google a Haswell OC guide and see if you can get one for Giga so the terms are correct as Asus calls them different names.
 
Think I was definitely a little premature.

So unfamiliar with Gigabyte boards after many, many years just Asus. One thing on Asus was the turbo multiplier would stick to that ratio.

Here, it would. Go up to the 5ghz, but then drop lower than specified turbo ratio under heavy load. So. Wasn't really at 5ghz. Though it said 5ghz at the time I looked.

I can get into windows at 5ghz, disabling turbo, but looks like it may have a bit over 1.4v, and not sure I want to go there.

Will play more when I have time. Could be another voltage I need. To adjust besides vcore.

Just a lot of options am unfamiliar with.

One thing appears to be for certain though, this board/cpu doesn't seem to like running at 125 strap. Though, again, I suppose it is possible there are certain adjustments I need to make to get that to work.
 
jh30uk said:
Seems good low volts for stock and around 4.6GHZ you are going to possibly need do a little tweaking to get it to be stable.

I do not know what its called on Giga Mobos but you may need raise the voltage that is for CPU now at around 1.7v to 1.8v or even safely 1.9v, its called CPU Input Voltage or CPU VRM volts AFAIK.

There is other voltages to raise also but I advise you google a Haswell OC guide and see if you can get one for Giga so the terms are correct as Asus calls them different names.
Click to expand...

I have read that guide to meny time :)

It seems to be stable at 4.5 with 1.215volts says 1.224volts in hwcpuid passed 3dmark cinbench 11.5 and 15 run it 3 time each and passed asus real bench so thats good for 24/7 gaming. Will work on 4.6 later.
 
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I'd love to see what my chip can do on a proper board.

Currently running on a Asrock Z97 Pro4 for a client build and I'm currently 4.702GHz AIDA64 stable at 1.223V (BCLK is 100.1MHz because Asrock boards drop under the specified value). I did get a semi-stable Windows desktop at 4.9GHz at 1.41V but wouldn't stress (and no amount of voltage would stabilise it) and JUST ONCE got to desktop for a few seconds at 5GHz, but that needed a crazy 1.68V (I thought it couldn't hurt to try for a few minutes).

However I could get no significant BCLK adjustment to work and I have no BCLK Strap options on this board.

Managed to tweak my RAM too - 32GB Kingston HyperX Fury at 11-12-11-28-1N at 2135MHz 1.55V from a 1866 kit
 
Well after meny hours overclocking and testing I found out that I have the worse i7 4790k sold :)

At stock 4.4 it can run at 1.165volts perfect which is good really because it is running 4.4ghz.

4.5ghz again good runs at 1.226 volts stable.

Now 4.6ghz required a lot more volts around 1.27volts and has passed every thing but I have not tryed to game on it yet on a heavy demanding game watch dogs ect.

4.7ghz I get it to pass every thing at 1.37volts possible could drop little off that.

I have not even tried 4.8 no point.

I am really disappointed with the 4790k I have got its a real shame, I was hoping for 4.7ghz just under 1.3v would be really happy, looks like I have to sell up and maybe try again.

But do you guys think that my motherboard could be problem cause at stock volts they are 1.36 and I have to decrease manually and gigabyte have not released a bios update for 4790k on there site.
 
Well.... currently got chip at 4.8 (with voltage fluctuating between 1.3/1.322 under load) booting into windows and running couple of cinebench and currently running Aida64 stabiolity test and so far no crash....

BUT!!!! The temps are insane! Aida stability test has the thing hitting up to 100C! That is under water!

That seems far worse than my 3770K ever was.... and seems worse than toehr 4790K's from my reading around.
 
Funny thing is that this 4790k requires round same volts as my 4770k they run round same? Its like a clone. So thinking my motherboard might be crap.
 
My 4790k is stable at 4.7Ghz @ 1.32~V, need to play around with the other voltages to see if I can get it down a bit. Don't mind running it at this as it isn't on 24/7
 
1.32v@4/8 i require 1.36v to get 4.9 stable.
5.0 stable requires a woopin 1.42v lol

for some reason my cpu have become more unstable when i added a gpu to my water loop WTF lol

need to run some more tests :P

got my water cooled block for my r9 295x2 installed :D 1120/1625mem default volts 59-62c in crysis and 59-63c in sleeping dogs all maxed :D
 
So i picked up another 4970k the other day as I wasn't too happy with the results of my previous one. A bit silly maybe, but meh :)

New chip is batch L419B640 and is a much better chip.
Currently at 4.8ghz with 1.25v

n9i.png


Might be a candidate for delidding though, hits 90c when running IBT under custom water. I know IBT makes chips particularly toasty but there is a 10c temp difference between cores
 
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well that would make you think twice

vice method does seem safest way from what ive seen,i wouldn't like to use a blade again

even a 4.5ghz would be enough for me tho on dc chip
 
No way I use a Blade for CPU sake and my fingers sake.

Vice + wood + hammer was preferred method for me but now there is a vice only method.

I think more have killed CPU's scraping the CPU with the blade then Vice methods.
 
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