Motherboard Over Volting my i7-4790k

[ChiefGunny]

I just built a new computer a month ago and from the start I've had issues with the CPU overheating.

 

The Spec- Motherboard-Gigabyte GA-Z97X-Gaming 3

CPU--i7-4790k

Ram-G.Skill Ripjaws series X 12800  2x8  16gb ram

GPU-Zotac GTX 970 AMP! Omega w/AMP! Extreme HSF

PSU-Corsair HX750 partially Modular

SSD-Kingston 300V 120GB

HDD-1 Hitachi 1TB 1 WD 320

Case- Antec 1200

Monitor- Acer P215H 1080p

 

I've Tried 4 different CPU coolers with avail right now I'm using a Zalman CNPS 5X Preforma and I have to run the CPU with the Turbo Boost disabled to stay around 75c on Load (AIDA64). I'm looking to buy a Corsair H100i maybe that will keep it cool. I would love to OC it cuz it hit 4.8 GHz NP but with a 1.52V to much I think. The Mobo has i7-4790k OC profiles for 4.6 and 4.8 GHz but when I use the 4.8 it hit 100c instantly with AIDA64. So maybe with a little voltage lowering I can still hit 4.8 without the crazy temps if I use the H100i hopefully the stock turbo enabled voltage is 1.28 without its like 1.14 V and stays cool np. Do you think the 1.28 Vcore voltage is what's up the Overheating or a bad thermal paste under the Heat spreader? Do you think the 1.55 Vcore Voltage is to high for the CPU when running the OC 4.8 GHz? I've talked to Intel and they say that a lot of mobo's have an issue with running the voltage to high and causing overheating. I could do a RMA on the CPU but it will be a month before I get it back and I cant do that its all I have. What do you guys think with the H100i keep it cool or is it a bad Heat Spreader and nothing will help? Also all the coolers I put on don't push a lot of heat even when its overheating and the only party that even gets warm is the heat pipes at the bottom of the cooler the top of the cooler stays cold. Don't put out a lot of heat at all and yes it is seated properly. PLEASE HELP!!

[Enderman]

its your CPU cooler, its horrible

a H100i will definitely keep the temps good even at 1.28v

[Raudi_]

4.8 on that cooler sorry bud that is gonna be a no go. Get a NH-D14/NH-D15/NH-u14S or a nice AIO and you will be fine. Also going past 1.35v on air is degradation zone on Haswell.

[Rooah]

Yeah that cooler is nowhere near enough if you wanna hit 4.8 (the Zalman). I would also say if you wanna overclock then you should learn how to do it yourself rather than trust the motherboard is doing it properly, personal opinion though and to be fair the newer motherboards seem to be pretty decent at it. 

 

Probably just go with the H100i, and I would recommend some better fans if you care about how loud it gets.

[SkilledRebuilds]

Going past 1.35v on air is degradation zone on Haswell.

This... @ChiefGunny try to reduce voltage or clocks until your temps are manageable.

Then buy a new cooler when you can..

Don't run it 'as is' as obviously your not comfy with it.

/Don't use AUTO voltage options if your doing so...

/Don't use OC profiles, their voltage settings are NO DOUBT higher then what you could manage with manual overclocking.

[ProKoN]

[i_build_nanosuits]

snip!

listen to ProKon's video carefully it should answer many of the questions you might have.

[ChiefGunny]

If you run Prime 95 for 5 mins your temps will jump instantly and over volt bad try it

[Prolly_dyin]

I've found the "sweet spot" on a 4790k or 4690k to be about 4.5ghz or 4.6ghz around 1.25v or 1.30v. With a fairly decent cooler, case, ect. that should put you into a good balanced longevity to performance ratio. Typically there's such a large voltage and subsequently thermal increase past 4.6ghz on these that you're more likely to run into worse throttling and degradation.

 

Also, If you're using this as a gaming machine, from a bit of testing I've done, there is very very little if any advantage seen from overclocking these cpus running gtx 970s as single, 2 way, or even 3 way sli. You may notice a little snappier desktop performance, but it's actually very marginal. And the advantage from 4.6ghz to 4.8ghz with a nearly .2v bump in voltage needed to stablize it is in my personal opinion not worth it.