yup.
over the years i had many so call prime stable, linx stable etc all fail when i do long encodes..

the issue is always not the vcore or cpu on high clocks.

as cpu goes up, other factors come in and mainly its pll, switching frequency etc etc especially with high dram speeds, low timings, low imc timings

overvolting vcore will mask this instability but true colors will be shown in encoding etc especially with avx instructions etc.
or even chrome on its mem paging and swapping.

hence i just run a few test but more importantly is always imc/ram stability rather than cpu vcore.
and always check scaling. for me its 3dmark11 physx. each multi must increase atleast 200-250 points and must be consistent after 10 runs. if not than theres some issue.
gsan
so 3dmark physx for 4790k should be.
4.5ghz 13000, 4.6ghz 13250, 4.7 13500, 4.8 13750 etc.

it will be sweet to get a 14k on everyday running comp. estimated 4.9ghz. but i forsee not possible atm with the current cooling or just some limitation somewhere. it could be even the bios was designed for a specific type of cpu scaling voltage etc. high dram speeds will show more instability and not necessary its always vcore. hence the initial guides of haswell are all wrong. owikh test may not be so vcore prone but its more stressfull as its stressing all the other voltages together. heat and thermal limits also test cpu leakages etc and hence with the inbuilt IMC u may see other failures that are not vcore related.

its very vague but ultimately all test can only be perform on better cooling. Even phase has its own issue with haswell.

This post has been edited by cstkl1: Aug 1 2014, 02:30 PM

Maximus Vi Price all dropped at czone

go grab ppl. M6e now Rm1099

out now is M7F at RM1720.

hilmiangah

i've been having 0x101 BSOD at 4.7ghz @ 1.295v running Cinebench R15
it passed AIDA for 30 minutes tho

what do u think is the culprit?
Change the CPU pwm frequency and dram to be the same, try 300,300 and keep increasing till u see a difference in stability. Retest with 3dmark11 performance Physx. Lower the PPL voltage to 1v.
4.7ghz physx score should be 13500 atleast.

but hilmi i can only stipulate until my wc setup is done. So far got everything except for tubing and fans. Still hitting my head sometimes as could have bought two more titan blacks for all this wc gear.
whats ure cpu vid?? (asus to check, go into bios, load optimize, save and reboot. enter into bios and see whats the vcore is running at)
up to 4.7ghz a decent 4790k.. the variance on benching and actual stable voltage can be up to 0.07v

stasio


i do that on one 4770k when i first got it. but after it died.. i didnt try that anymore.

hmm intel must have a reason for the +0.4v difference.

but its a good idea to find out why after 1.3v onwards the issue seems to be vccin related always. when i reduce my x-talk i get better stability at 5ghz. and when i say reduce.. its a ridiculous number that a 4770k would most probably die.

also this suggestion .. like a hole.. like how pll voltage between 1.25v to vccin .. its unstable.
hmm come to think of it.. pll and vccin.....i think the vccin lowering it makes the pll stable. theory

This post has been edited by cstkl1: Aug 6 2014, 09:14 PM

eh bro.. ure gonna need more than 1.28v.
i estimate u need 1.175v for 4.4ghz ( btw check using hwinfo64 on the vid for all core later on after u set it manually)
so by that estimate.. 1.225 for 4.5ghz and 1.275v for 4.6ghz and 4.7 should be 1.325v.

4.7 in DC.. can run at lower voltage .. infact DC only shows its true colors of difficult clocking from 4.8 onwards.

i would wait doing before such

wait for more results, voltage readings on the cpu etc..

cause having a starve state on the cpu voltages will definitely cause it to degrade faster.

but ures should be ok.

i so far follow the intel vccin spec

boot at 1.7v
operate between 1.65-1.8v (without loadline etc)


This post has been edited by cstkl1: Aug 7 2014, 09:09 PM

use adaptive and disable that SVID thingy.


This post has been edited by cstkl1: Jun 22 2015, 02:07 PM

cstkl1 --- 4790k @ 5.0Ghz --- Titan X @ 1508/2000Mhz --- 18544


Last hurrah for this setup. Its doing things i nvr knew it could..

Initial test on skylake.. Gpu score is lower. Hoping with all the option m8e should have.. Can resolve it.

This post has been edited by cstkl1: Dec 7 2015, 05:59 PM

Now to get that 5ghz problem rectified.

Still lowering a few voltages on the 4.9.

560+280 hwlabs GTX nemesis push config...
Totally justified the 1.3k.. ( had some tax to pay) price.. best rads i ever used.

cpu temps actually lower by 10-15C.. its just that heatdump from the gpu into the water since luxmark is running.

This post has been edited by cstkl1: Dec 18 2015, 11:42 AM

thats cause i ordered direct from the owner... 1 day to arrive. DHL.