Intel i7 4790K Owners thread

setter · 21 Jan 2015 at 17:09

Asus were a bit high with vcore on early bios revisions, but the gigabyte ones seem to overvolt an awful lot higher. Iirc on ver 1504, vcore on my first 4790k was 1.264. 1505 lowered it a bit but cant recall what. Current one is 1.200 at default.

Dirk Diggler · 21 Jan 2015 at 17:17

stulid said:
Use F9c.

Look at the date the F8 came out, way before the 4790K.

I checked CPU support list and it said F8. I was happy with that because F9c is beta. Anyway, F9c had fixed the issue.

Thanks Stulid.

setter · 21 Jan 2015 at 17:20

What's your default under load now String?

Dirk Diggler · 21 Jan 2015 at 17:22

McGraw said:
I had the same. It's a joke.

It was a close call. I've got Aida64 set to shut down if a core goes above 100c, and it did.... Within a second of the stress test starting!

Dirk Diggler · 21 Jan 2015 at 17:23

setter said:
What's your default under load now String?

It's boosting to 4.2ghz @ 1.215v.

I'll be overclocking soon, but I need a stable starting point and thankfully F9c seems to have sorted it.

setter · 21 Jan 2015 at 17:32

4.2? Should be 4.4 on cpu'z etc, albeit that's only on one core with turbo enabled. Never tried mine without it on. So could be different.

Dirk Diggler · 21 Jan 2015 at 17:35

It was boosting 4.4 on the previous bios. I'm not too bothered as I'm going to over ride all the settings for a 24/7 OC.

McGraw · 21 Jan 2015 at 17:54

String said:
It was a close call. I've got Aida64 set to shut down if a core goes above 100c, and it did.... Within a second of the stress test starting!

Haswell does love to stay one step ahead of your cooling!

It should throttle though anyway so I'm sure you would have been ok.

Mine's been in the wars a bit due to a combination of high volts and h60 problems but it seems fine.

Dirk Diggler · 23 Jan 2015 at 19:51

What's the highest vcore you guys run 24/7? I'm sitting at 4.8ghz @ 1.36v. Temps in Realbench are around the 70c mark.

skaif · 23 Jan 2015 at 19:59

Im currently running 4.6ghz @ 1.273v. Max temps when benching on h80i are around 65-70c

vonex · 23 Jan 2015 at 20:04

String said:
What's the highest vcore you guys run 24/7? I'm sitting at 4.8ghz @ 1.36v. Temps in Realbench are around the 70c mark.

that's spot on, i would'nt go any higher

1.38vcore for 4.7ghz here.

setter · 23 Jan 2015 at 21:25

1.35v would be my limit on air, maybe a bit more on watercooling. I currently run a quick n diirty 4.7 oc on 1.300. Need yo see if it will do it on less voltage. Think this chip could maybe do 4.9 on reasonable volts. But cooling is the problem unless I delid it.

JeffyB · 24 Jan 2015 at 02:59

4.8 1.28v, keep meaning to push for 5 but never seem to get around to it.

setter · 24 Jan 2015 at 03:20

JeffyB said:
4.8 1.28v, keep meaning to push for 5 but never seem to get around to it.

4.8ghz is overkill with one gpu mate tbh, heck it makes little difference with two. Yes in benchmarks you score a bit higher. But the voltage needed for 5ghz is crazy, ie dangerously high. Ive only seen one 4790k that runs 5ghz on a good voltage for 24/7 use. 1.32 from a guy on here, ive looked over many forum threads and never seen one this good. Forget watercooling, theese chips are so hot a £1000.00 custom watercooled setup isnt much better than a £25.00 air heatsink when you push them.

Dirk Diggler · 24 Jan 2015 at 08:04

I've decided to shoot for 4.6ghz for 24/7. Currently sitting at 1.28v and I'm still lowering. Should be better for the chip over time, and what real difference does an extra 100 or 200hz make anyway?

JeffyB · 24 Jan 2015 at 08:36

setter said:
4.8ghz is overkill with one gpu mate tbh, heck it makes little difference with two. Yes in benchmarks you score a bit higher. But the voltage needed for 5ghz is crazy, ie dangerously high. Ive only seen one 4790k that runs 5ghz on a good voltage for 24/7 use. 1.32 from a guy on here, ive looked over many forum threads and never seen one this good. Forget watercooling, theese chips are so hot a £1000.00 custom watercooled setup isnt much better than a £25.00 air heatsink when you push them.

Yeah I know but i'm a tinkerer and i'd like to put some benchmark scores in as well. I'm more than happy with the 24/7 overclock I have

kimandsally · 25 Jan 2015 at 10:27

BluD said:
Nice one, how much do you lose each time you trade one in? I assume ya just selling them on auction site or some thing.

Im guessing the ones that clock quite high sell for a fair bit more than the price you pay for it new.

I do it for fun don't drink don't smoke so I lose a bit not a lot I put them into PC builds that I do for people.

The best one I sold to a gentleman on here for £250 plus postage so I even made a small loss on that one, if I could have done it cheaper I would have the buy is in Germany serving our country and I have massive respect for our boys and girls who without hesitation would lay their lives down, I would have loved to be able to give it to him I feel that strongly about our people.

SWEagle · 25 Jan 2015 at 18:27

Two stress test at the same time after running 3D Mark 2011. Temps could be a little bit better. Need to buy a decent Thermal Paste...

The voltage is now in a safe zone!

setter · 25 Jan 2015 at 21:55

Those are excellent temps for one of these, mine can get to 74c in games nevermind stress tests.

SWEagle · 25 Jan 2015 at 22:12

In game the average is 33c.

I think I can still lower down this voltage. Been testing at 1.295 and it's stable. But it's too soon to say.

Competitor rules

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Intel i7 4790K Owners thread