7700k voltages question

junked

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Dec 26, 2012
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So I recently put a computer together with a 7700k. I knew going in that it was going to run hot as most people had reported that they do. I didn't want to de-lid as this wasn't my computer and I wasn't paying for the hardware.

I looked around to see what kind of settings many were using to get stable oc`s and it seemed most were around 1.3v - 1.35 for something between 4.8 - 5gz

The case we decided on was a view 27 which turned out to be crap for reasons I won't go into, but it left me with only 155mm for a radiator. The best air cooler I could come up with in this range was the h7 cryorig, which is working about as well as I expected.

So the MB defaults the 7700k to about 1.258v or somewhere around but I had read that some people had under-volted to get better temps. I decided to go with that assumption and got it down to 1.215 on adaptive with a the llc in mode 6 which gives me almost exactly that in hw monitor vcore result.

After this I put it to 4.6 and ran prime 95 small ftt for a couple of hours without issue. Trying my luck I went to 4.7 at 1.205v which puts out 1.2 in hw monitor and have been running for over an hour without issue. Temps have spiked to 80 in package and 3rd core, but are hovering around 75.

I'm just wondering if anyone else has had similar results with relation to the low vcore, or if I'm missing something. Like I said I've just read that most people are using more power to get oc`s near where I'm at. If I moved to that voltage I would obviously start going into the red as far as temps go. Just wondering if this is a decent chip or if others are just pumping their chips with voltage because that's what most of the ocing guides suggest.
 
Solution
Well I have found software like HWinfo to give an accurate VCORE reading for my uses, if you were doing something like LN2 overcloking you may want to stick it with a voltage meter but I would say that is a bit overboard for a water or air overclock. However VCORE will not always be what you set in the BIOS it will useally drop below what you set under load due to vdroop, that can be mitigated with LLC (load line calibration) in the bios.
"So the MB defaults the 7700k to about 2.58v"? Vcore? Not sure what you mean by that, im very doubtful your mobo set a 7700k to 2.58v vcore, you would likely have a dead 7700k if it did.

If you are using a prime95 version with AVX and you dont have some kind of AVX offset that lowers clocks when the cpu is doing AVX calculations, 4.7ghz 1.2v stable is quite impressive, my 7700k wont do that.
 
Yeah it was juicing it at 2.58 haha. Sorry about that I was typing on my phone and got the numbers wrong. Fixed.

Just to note I was using prime95 version 26.6 which is the one thats recommended on here regularly. I'm gonna run occt on it today and see how that goes.

Thanks for the reply, I've been using it normally for a couple of days without issue. I really expected not to be able to get an oc after reading so many complaints about heat but maybe I just got lucky.

One thing is, the vid is still in about the same area as before but as I understand it that's what's being requested not what's being sent. I've read that the vcore value is not perfect when reading through software but that's what I should go on if I don't have one of those digital voltage meters.

Am I off base here?
 
Well I have found software like HWinfo to give an accurate VCORE reading for my uses, if you were doing something like LN2 overcloking you may want to stick it with a voltage meter but I would say that is a bit overboard for a water or air overclock. However VCORE will not always be what you set in the BIOS it will useally drop below what you set under load due to vdroop, that can be mitigated with LLC (load line calibration) in the bios.
 
Solution