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Need assistance finding the limit of my 4770k(temps not a factor)

krhagene
Level 7
I recently bought this kit for my EK waterblock:
https://www.ekwb.com/shop/ek-supremacy-precisemount-add-on-naked-ivy
My cpu was already delidded a few years ago so I thought why not.

Temps before “naked mount”:
https://drive.google.com/open?id=0B9CyJiyzx3DlNV9JcWZ3ZkdTaHc
After:
https://drive.google.com/open?id=0B9CyJiyzx3DlMmhkTFl2UnJoNFU

It's been really fun to overclock the last few days but I seem to have hit a bit of a wall on 4.9ghz / 1.44v. It's quite stable but not enough for 24/7/365.
Some documentation I’ve done:
https://drive.google.com/open?id=0B9CyJiyzx3DlZ2w1M2xXQmg4S2s

I’ve been running “eventual CPU input Voltage” at 2.01 before on my other overclocks. But now I seem to run into instability no matter what, input 2.3v, vcore 1.55v, doesn’t matter after starting occt it fails after 10 seconds to 2-3 minutes. 4.8ghz / 1.4v vcore / 2.1v input seems good and ran between 4 and 5 hours occt stress test before it failed, probably needs a little bumb on voltage, haven't had the time to test more yet. It boots to 5ghz but can’t really do anything other than screenshot it. So my goal would be 4.9.

I’m a little uncomfortable increasing my input voltage above 2.1v. But if it dies, whatever, it will suck but I got money saved up for a new pc parts (cpu/Mobo/ram). Not sure if anyone has anything to say about where the limit is with the input voltage?

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Stats from my previous overclocks on this cpu:
(Input voltage : 2.01v 😞
4.4ghz / 1.18vcore / 4.4ghz ring/ 1.2v adaptive ring
4.5ghz/ 1.26vcore / 4.5ghz ring / 1.3v adaptive ring
4.7ghz/ 1.38vcore / 4.5ghz ring / 1.3v adaptive ring

(Input voltage : 2.1v):
4.8ghz / 1.4vcore / Auto ring / Auto ring voltage (stable)
4.9ghz/ 1.44vcore/ Auto ring / Auto ring voltage (unstable, kinda ok for daily use tho (5h of linpack was fine))

(Input voltage: 2-2.3v)
4.9ghz/ 1.4-1.5v. (anything above or below 1.44 makes it more unstable:S)

(C states / turbo / EIST / spread spectrum / and a bunch of other things disabled to eliminate instabilities when I’m overclocking.Vcore on manual. Most other voltages and settings on auto)
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I’m not that patient with reading forums so if anyone has any ideas for previous experience I’d LOVE(!) if you could help me out. (probably get a lot of these “stupid” questions/ posts)

(I suppose you need some of my bios information may be, I can add that to the google drive, but what, my overclocking profile on a file or something like that?)

4770k
Asus z87 gene
16gig 1600mhz cl8 ram
Corsair AX860i PSU
3x 140mm rad with custom watercooling on the cpu (420 blaze it)
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95 REPLIES 95

I did mostly like short 2 hour runs now with aida64 etc. I might end up leaving it on for a few days down the road to make sure its stable. I know it probably won't deal with occt for 24 hours but it did 5 hours last time on these settings so thats pretty good. Considering I've used overclocks before that was stable for over a year(no issues) without even passing 10 seonds of occt. Part of it might be that this test runs kinda hot and the cpu doesn't really like that. Even tho I think it should be able to handle anything I throw at it.

So I tried Realbench, got bluescreen on the benchmark.
****!

I think its the core tho since that usually bluescreens if something is wrong, the ring just freezes the picture, and the ram bugs out the program. At least I think.

Its failing the H.264 video encoding, I ran them all once individually without it bluescreening. But defenetly doesn't pass that test every time.

I got it to run 10 benchmarks(h.264 encode) on 1.407v at least. I tried raising the voltage much more and it makes it more unstable. Like 1.5v instantly fails, 1.43v fails, 1.395 fails . Somewhere between 1.4-1.43 is very stable. Its just finding the perfect voltage. If 4.8ghz will even work in h.264 encoding at all.

I quite like realbench, it looked like a mess at first but its doing real world test I guess so looks pretty good. Temps are about the same as occt. It ran the stresstest for just 5 min at first but I'll try to dail it in so it works consisently.
Its kinda like cinebench just it does more stuff. I really like cinebench so.

Nate152
Moderator
Yeah just stick with the stress test in realbench, as you found out the encoding test in the benchmark needs a little more voltage. I wouldn't fuss over it too much, if you can pass the 15 minute stress test and you have no BSOD's with games call it good. 🙂

Nate152 wrote:
Yeah just stick with the stress test in realbench, as you found out the encoding test in the benchmark needs a little more voltage. I wouldn't fuss over it too much, if you can pass the 15 minute stress test and you have no BSOD's with games call it good. 🙂

I might do that. I never encode video so. I'm really tierd of mixing with settings and getting nowhere so I'm taking a break for tonight at least.

Nate152
Moderator
Yeah run the 15 minute test then take a break from fooling with it and play some games, I feel confident you'll have no problems. 🙂

Record your gaming temps and let me know what they are.

Nate152 wrote:
Yeah run the 15 minute test then take a break from fooling with it and play some games, I feel confident you'll have no problems. 🙂

Record your gaming temps and let me know what they are.


From 20 min with CS GO, fans hardly making noise
https://drive.google.com/open?id=0B9CyJiyzx3DlTmVBRGVFVnlVSG8

Nate152
Moderator
Temps look good to me, I'd let it there and have fun with your pc.

I'd like to say again you have an exceptional 4770k, you're as fast as on overclocked 4790k. 😄

Nate152 wrote:
Temps look good to me, I'd let it there and have fun with your pc.

I'd like to say again you have an exceptional 4770k, you're as fast as on overclocked 4790k. 😄


Its pretty much the same chip as the 4790k right just I've skipped the whole IHS thermalpast issue at this point. And they made some small change under the pcb to make it a little better or something.