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Guys, I saw something weird tonight with my 4770K. I have spent the last few days priming different combinations of settings trying to reduce vcore at 4500 and while I was watching cpuz my cpu downclocked to 39x but it was not too hot, it was only about 65 at the time, so what else can make it throttle?
:(
Disable cpu thermak feedback and vrm fault management in bios,also cpu integrated vr efficiency mangement should be set to high performance :up:
Thank you, just seems odd I had temps of 100 degrees before delid and it didn't throttle (that I saw). Now I was testing working down from 1.30v, I have a screenshot of 16hrs priming still holding 4500mhz so I dropped the volts a little further to 1.250v and this happened....
Weird.
Before bumping up system voltages it needed 1.30v to be stable, now its down to 1.250v and still tesing.
:)
you should remove vttddr from your speculation since it only goes to the dram not even to the cpu so how can it hurt the cpu?
I've killed 2 chips already; one was simply because I tried 1.5v to see if it would boot into 50x multi. with vccin on 2.2-2.25 (this was on an h100i cooler lol)Quote:
Originally Posted by l0ud_sil3nc3
The other chipped died on 1.25v but vccin was set to 2.2-2.25.
So far priming with c-states which requires higher io voltages n very picky on the dram clock thingy... Both proc surviving.
Before this was full manual with i/o voltages can run at 1v up to 2266.
i don't get it.. i tried x50 and i left VRIN (Vccin) on AUTO and it was still holding at 1.8V. why u guys trying to bring it up? i tried 2.1V for my OC it didn't make it more stable...
Hi Peter and thank you so much for clarifying this :up: , My good 4670k I thought it was dead or IMC was hurt just to find out is working great again on M6E and Z87-Pro. After last night benching at -115c 3 hours into the benching session everything was going great , so I was as happy as a dog with 2 tails , I did what Dumo suggested me , and I did not run the Ram ( Sammies TX LV cas 9 ) at very very thight timings second and thirdiaries. It ran flawlessly even with uncore at 5120.7 as before it was not stable with that uncore so high , I was running at 5925Mhz 1.88v. core and I tweaked all other voltages for stability and find the sweet spot :up: it felt good :) I saved a lot of profiles already due to so many tweaking on the voltages and checking for stability. After 3 hours into benching flawleesly 3D at those speeds I got a BSOD and then when I re-boot code 55 , clear settings re-boot again code00 , re-boot again code 55. At this point I hit the memory OK button "w00t" amazing feature in Asus boards :up: , I was able to boot again at same settings and cpu speeds but , I could only run the Ram at stock speeds or Auto otherwise code 55. I ran a few more benchies at 5924Mhz cpu but with Ram at auto. sometimes It would get stuck at multi x8 only in windows. Me been a curious guy. I shut down the rig and started looking with a magnifiying glass at the board M6E , I took one piece out of the board at a time vga all ok , memory :eek: slot had water in it due to condensation eventhought I did an awesome job ( or so I think ) in the insulation , even put some Vaseline in the Ram contacts. To end the Story , all the troubles I have had with the good 4670K Haswell was due to condensation and water finding its way to the Ram slots , I have no idea how it got there but that is findings why cpu was acting crazy. I guess tonite when I go cold again will put lots of Vaseline in the Ram slots and try to insulate that part of the board much better. Asus Memory OK button feature saved my life :D , great feature on Asus boards.Quote:
Originally Posted by LardArse
Example #1 , CPU running flawlessly 01 in the first 3 hours: CPU at 5925Mhz @ -115c , Uncore at 5120 ,Ram at 1338 cas9 thight. GPU was old , eVGA GTX 260 216sp running on chilled water.
http://imageshack.us/a/img9/5112/wbf9.jpg
Example #2 , CPU started to act weird , code 55 , code 00 and sometimes cpu multi stuck at x8 inside windows that was after 3 hours subsero. from this point on forward I could only bench at Ram speed on Auto settings but same cpu speeds.
http://imageshack.us/a/img29/6199/vq01.jpg
Conclusion , the problems was not the cpu or the motherboards , The problems was water into the Ram slots :yepp:. So take this as an example guys , if your cpu act weird and you think like me ( cpu dying ) , please check and verify your Ram slots for water or condensation around Ram slots.
isnt vrin(Vccin) supposed to be 0.400 to 0.500 higher then vcore?
I think you guys are setting VCCIN too high for air,i saw no gains above 1.9 honestly,on air...Quote:
Originally Posted by Phaseshift
Played with dice and used 1.7 vcore and 2.2 vccin,high dram voltage,tight latencies,whatever,cpu survived for 6+ hours at -70.
For testing cpu/binning under cold i would start with a vcore of 1.7 and 2.2 vccin as a base,then see if increasing vccin actually gains something,no point in jumping to 2.5 vccin from start...Start lower with voltages and see where the curve gains/voltage ends,unless of course you some old QE6S ES chip that can handle 2.5 vcore no problem :D
Also don't forget about temperature compensation option from ln2 mode ;)
4770k 5 Ghz 1.31 Vcore - WC - NO IHS Mod
http://www.firegoon.com/u/q52zr.jpg
hersounds : Hmm happy man came across too cpu. :up:
in my opinion changing VRIN makes no difference... no matter what i do with Vcore and ratio, VRIN (Vccin) when left on AUTO stays at 1.8V... kinda strange, i know.. but MOBO designers must know better then me :P
as far as i know, and tried, VRIN has no impact on stability whatsoever (and i tried 2.1V), Vring does. for 4.8GHz at 1.27V i need 1.3Vring to get this going.. less then that and BSOD.
i tried and made x50, with all auto except Vcore, but checked with voltmeter what is VRIN (Vccin) and Vring is... i was surprised to see VRIN staying at 1.8V, but Vring going up to 1.34V.
4770k 5 Ghz 1.31 Vcore - WC - NO IHS Mod
Well Done Hernan , very nice CPU :up:
Yes vnice CPU to even run 5G @ 1.31 but I cant believe your numbers.... gflops are 1/2 what they should be & your temps are almost idle temps for 1.31v! Linx cannot be loading that CPU mate.Quote:
Originally Posted by hersounds
It has to be no AVX instruction set, so no SP1 or the wrong version of linx, either way it looks a decent chip.Quote:
Originally Posted by C-N
4 minutes per run for 6.5k memory usage is also not right for the reported CPU frequency.Quote:
Originally Posted by C-N
Quote:
Originally Posted by C-N
Quote:
Originally Posted by cstkl1
@ C-N,Quote:
Originally Posted by C-N
How much CPU Cache/Ring voltage for your sample to run uncore 1:1... 45x?
Quote:
Originally Posted by l0ud_sil3nc3
Got same L312B152 batch from Frys in Burbank today. :)
Don't plan on benching on super cold but will do ambient temp water cooling for gaming. Hoping for 5GHZ.
Yeah I think I'm going to leave vccin on auto for now since I didn't have a dead chip until I started messing with vccin. I still don't get why 1.25v vcore and 2.2 vccin killed my 2nd chip though.Quote:
Originally Posted by Alex-Ro
Hi mate,Quote:
Originally Posted by PolRoger
I had it at 1.3 & it looks like it needs all of it for 45/45 1:1. I arrived at that figure asthats what it needed to occt 4.8 with stock uncore. I found i needed more & more ring voltage as i walked the chip up from 4.5,6,7 etc.
Quote:
Originally Posted by chispy
That is awesome. I just bought my 4770k with the intentions of doing the same mod. Hope to have some success as well.
Quote:
Originally Posted by PolRoger
Any benefit to running 1:1? I thought is wasn't necessary?Quote:
Originally Posted by C-N
Very nice Hernan !!! great CPU !!!Quote:
Originally Posted by hersounds
LOL about 1" inch on my e-peen my friend that's all :DQuote:
Originally Posted by Rob94hawk
Seriously though nothing you'll notice in daily use. When benching raising the uncore closer toward the CPU speed you will see small benefits.