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== Haswell-E Overclock Leaderboard & Owners Club == - Page 1914

post #19131 of 22287
Quote:
Originally Posted by GRABibus View Post


Yep, I am OCCT stable @ 4.5GHz @Vid=1,17V

4.5GHz at 1.17V....

post #19132 of 22287
Quote:
Originally Posted by xkm1948 View Post

Would you guys consider it possible to cool a 4.5GHz 5820K with a Noctua D15? Right now running at 4.25GHz and I am tempted to go higher.

For your info, With My NH-D15 and 2 noctua fans push-pull @1500rpm, I just have some peaks @ 81C during OCCT Large Data Set @ 4.6GHz @ Vid=1.23V @ 22C room temperature.

These are really rare peaks, otherwise average temps for cores is 75C.

Maybe this can Help you.
post #19133 of 22287
Quote:
Originally Posted by GRABibus View Post

For your info, With My NH-D15 and 2 noctua fans push-pull @1500rpm, I just have some peaks @ 81C during OCCT Large Data Set @ 4.6GHz @ Vid=1.23V @ 22C room temperature.

These are really rare peaks, otherwise average temps for cores is 75C.

Maybe this can Help you.

Up to 81C in OCCT Large Data set should be your limit for a cool chip. I wouldn't recommend pushing further unless you have an ASUS motherboard and are willing to play with a new tool...? Also I'm jealous, my 5820K needs 1.240V for 4.3GHz. tongue.gif

Also remember if you're in the Northern Semisphere, ambients will increase in the coming Summer and each degree increase will cause an increase for core temps.

If you want to find the absolute max temp. for the CPU, run both fans on the heatsink at max and from there you'll be able to work out the max voltage you can use on the chip.
Edited by Desolutional - 5/31/16 at 2:40pm
post #19134 of 22287
Just don't try running SmallFFT AVX, it will skyrocket to 100*C in seconds no matter what.

BTW, what voltage settings DO affect overall CPU temp? (except for Vcore, of course).
post #19135 of 22287
Quote:
Originally Posted by Martin778 View Post

BTW, what voltage settings DO affect overall CPU temp? (except for Vcore, of course).

Vcore makes the largest and the most contribution to CPU temp. GPUs, VCCIN, LLC can cause secondary heating from the VRMs and GPUs producing heat inside the case, and increasing case temps. Also Ambient temperature will make a difference as noted in my other reply to GRABibus. That's generally why some OCers have different profiles for summer and winter.
post #19136 of 22287
Thankfully I'm not so dependent on ambient temps since my 5930K is LC'ed.
I'm seriously thinking about delidding that thing as even when I hit 80-90*C my water block feels barely warm, same for the water temp.

I wonder how big is the contribution of LLC to heat production, should I just set it in auto and forget? My ASUS is on LLC=1 now and CPUZ reports 0.00Vdroop under load.
post #19137 of 22287
Quote:
Originally Posted by Martin778 View Post

Thankfully I'm not so dependent on ambient temps since my 5930K is LC'ed.
I'm seriously thinking about delidding that thing as even when I hit 80-90*C my water block feels barely warm, same for the water temp.

I wonder how big is the contribution of LLC to heat production, should I just set it in auto and forget? My ASUS is on LLC=1 now and CPUZ reports 0.00Vdroop under load.

Ambients affect intake temperature on cooling rads too, although it isn't strictly 1C per 1C (thermodynamics, etc.). You may have better luck lapping the CPU than delidding it, the IHS is soldered on these CPUs, so heat transfer should be far better than the mainstream CPUs. Not sure why your block isn't heating up, it should be warm to the touch when stressing the CPU.

As for LLC, it only affects VCCIN (Input Voltage) on X99. Vcore doesn't suffer from Vdroop in the strict sense on X99. LLC level 5 out of 9, or level 6 out of 9 are good settings for LLC. I use LLC6. VRMs are fine up to 80C and even higher, so doubtful those will get that high, especially as you're directing CPU heat to the water cooler.

What is your rad setup (size, kit, etc.) and your CPU Vcore and Temperature? I'd avoid letting the CPU reach higher than 80C.
post #19138 of 22287
Quote:
Originally Posted by Desolutional View Post

Up to 81C in OCCT Large Data set should be your limit for a cool chip. I wouldn't recommend pushing further unless you have an ASUS motherboard and are willing to play with a new tool...? Also I'm jealous, my 5820K needs 1.240V for 4.3GHz. tongue.gif

Also remember if you're in the Northern Semisphere, ambients will increase in the coming Summer and each degree increase will cause an increase for core temps.

If you want to find the absolute max temp. for the CPU, run both fans on the heatsink at max and from there you'll be able to work out the max voltage you can use on the chip.

Yes, this is why I stick to 4.5GHz and Vid=1,17V.
By the way, overclocks should be set at an average yearly temperature (22C for me), and then , the overclock I set at 22C Will be the one for the Whole year. I don't use any of softwares which heat cores at 80C (like OCCT can do), even at 30C room temp lol
post #19139 of 22287
Quote:
Originally Posted by Martin778 View Post

Just don't try running SmallFFT AVX, it will skyrocket to 100*C in seconds no matter what.

BTW, what voltage settings DO affect overall CPU temp? (except for Vcore, of course).

Dépends on Vcore.
I am Prime stable @ 4.2GHz @ Vcore=1,04V and I never hit 80C core temperature during 24 Hours of P95 v28.7 small FFT or blend .
post #19140 of 22287
Quote:
Originally Posted by Martin778 View Post

Just don't try running SmallFFT AVX, it will skyrocket to 100*C in seconds no matter what.

BTW, what voltage settings DO affect overall CPU temp? (except for Vcore, of course).

The couple CPU fréquency/Vcore is also important.
I havé higher temps during burn test @ 4.6GHz/1,23V than 4.1GHz/1,25V
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