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== Haswell-E Overclock Leaderboard & Owners Club == - Page 1664

post #16631 of 21934
Quote:
Originally Posted by michael-ocn View Post

yikes, i think i'll take a pass on that, ran it with 1 worker active and core temps spike into the high 50s, package into the low 60s, that was with 4M size

That is totally normal and the temps are fine. When you stress test with small FFTs for maximum heat output I don't even worry about the temps so long as its not thermal throttling. Its expected for core temps to hit 80-90C when crunching FMA/AVX. Its just the nature of the platform. This type of test can tell you a few things about your OC such as if your cooling system is adequate enough to dissipate the maximum heat output over extended periods of time, if there is a heat-induced instability, and if you're throttling... you've pushed it too far. biggrin.gif
Edited by hemirunner426 - 1/27/16 at 7:00am
post #16632 of 21934
Question:

Folding Nacl (100% usage on CPU) stable for over 8 hours. Reboots after 20 min BF4.

Tips?
post #16633 of 21934
Raise Vcore by +0.02V and BF4 again. Folding locks frequency and voltage, gaming ramps frequency and voltage. I used OCCT for 3hrs and I'm fully stable now; with folding I could go with 1.22V for a day and no CPU issues, but GTA crashed after 15 mins. Folding is a decent CPU stability test and a great GPU stability test.
post #16634 of 21934
Quote:
Originally Posted by Desolutional View Post

Raise Vcore by +0.02V and BF4 again. Folding locks frequency and voltage, gaming ramps frequency and voltage. I used OCCT for 3hrs and I'm fully stable now; with folding I could go with 1.22V for a day and no CPU issues, but GTA crashed after 15 mins. Folding is a decent CPU stability test and a great GPU stability test.

Well it`s 4 minuts 100% load, then 20 sek no load (as are downloading new task) So should be somewhat the same?

Will try raising vcore. smile.gif
post #16635 of 21934
Yeah, when in doubt, raise Vcore (and VCCIN) if you've made sure RAM (GSAT), Cache (freezing) and OS files (DISM, sfc /scannow) are fine. Only time cache and RAM are linked are if higher density and/or faster RAM modules are used. Also any C-State deeper than C1 has negligible power saving, so if you're using C-States, only limit them down to C1.
post #16636 of 21934
Quote:
Originally Posted by Desolutional View Post

Yeah, when in doubt, raise Vcore (and VCCIN) if you've made sure RAM (GSAT), Cache (freezing) and OS files (DISM, sfc /scannow) are fine. Only time cache and RAM are linked are if higher density and/or faster RAM modules are used. Also any C-State deeper than C1 has negligible power saving, so if you're using C-States, only limit them down to C1.
What is your definition by negligible? Below 10W? Below 20W?
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post #16637 of 21934
Quote:
Originally Posted by GreedyMuffin View Post

I think my system is a little to hot to manage testing on 45x100 sadly. Package is almost 80¤C..

So i`m testing 40x100 until i can afford a new radiator (well sometime around match/may lol tongue.gif) 4000 is more than enough for games.

Was running f@h on CPU for about 6 hours until it rebootet, is it VCCIN, Core, cache or ram? was running on a low 1.019-1.024V on core. 1.850V LLC6 on vccin and stock cache.

With occt, i see brief package temp spikes into the low 80s with it hovering mostly in the hi 70s. I think that's ok for stress tests but i wouldn't want to see that in regular usage like gaming or folding.
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post #16638 of 21934
Quote:
Originally Posted by kizwan View Post

What is your definition by negligible? Below 10W? Below 20W?

10W saving maximum with Core Parking and deep sleep C6 states on idle. Averaged with a Killawatt under both Windows and Linux with a stable OC. 10W is less than the monitor you're looking at. Simply put, it's not worth it in risk of any instability (cache is very prone to C6 instability). For the loss of "idle-load" performance, definitely not worth it. C6 is better suited to server farms where that 10W will be multiplied greatly. Also... 100W+ on load, essentially every second of load is nullifying 10 seconds of idle time. Now me, I love me some power saving, but even I can see when it gets ridiculous. Also C6 is useful for laptops, not so much our extreme desktops.
Edited by Desolutional - 1/27/16 at 10:37am
post #16639 of 21934
Is there a guide anywhere as to what half the stuff in a BIOS means or best way to tweak these chips?. I recently got my 5960x and it seems to do fairly well. Setting the CPU strap to 125 and multiplier to 38 gets me 4.75 Ghz stable at 1.35 volts or daily profile multiplier of 37 = 4.625 Ghz @ 1.3.

No clue what anything else means so that's all left to adaptive, but suspect by only manipulating the voltage and multiplier I am doing a very raw overclock and tweaking various other things will allow me to go higher or reduce the voltage for said OC.
     
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post #16640 of 21934
Quote:
Originally Posted by hemirunner426 View Post

That is totally normal and the temps are fine. When you stress test with small FFTs for maximum heat output I don't even worry about the temps so long as its not thermal throttling. Its expected for core temps to hit 80-90C when crunching FMA/AVX. Its just the nature of the platform. This type of test can tell you a few things about your OC such as if your cooling system is adequate enough to dissipate the maximum heat output over extended periods of time, if there is a heat-induced instability, and if you're throttling... you've pushed it too far. biggrin.gif

Hopefully, Prime95 last versions (28.x) are not used to evaluate seriously the PC coolings...Otherwise, no one could overclock except high-end water cooling and low voltages !
The standard Prime95 version to evaluate cooling and compare rigs together on a standard and common basis is Prime95 v26.6

Everything explained here at "Section 13" of this nice thread (The guy who wrote it is an INTEL thermal specialist) :

http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html

Of course, for stability, we don't use anymore v26.6 for last CPU's releases.
Aida64, Realbench or Prime95 versions later than v26.6 (For those who are able to sustain 80°c max core temperatures during several hours..means high end water cooling and/or low Vcore).
All tests are referred at 22°C.
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