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ROG Crosshair VI overclocking thread - Page 947

post #9461 of 17379
Quote:
Originally Posted by Gadfly View Post

Maybe you know.. but on a 1700, without the +20'C offset, does it throttle at 75'C Tctrl or is it still 95'C tctrl?

95° regardless of model.
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post #9462 of 17379
Quote:
Originally Posted by alucardis666 View Post

Good stuff! Can't wait to get my 1700. You don't think an H100i is enough to cool it?

Yes, it will cool it, but the more heat you can dissipate the better.

It appears there here on my test bench, running open air, with a single 360 rad and some 2k rpm static pressure fans, D5 pump, and EK Evo water block w/ GC Extreme TIM I am unable to keep my CPU cool enough to run with DDR 3600 on a BLCK OC without thermal throttling.

I can run 4.1 at DDR4 3200 @ 100 BLCK without issues, but it is getting close.

When I build this setup into a case this weekend my cooling will expand greatly to dual 360 copper rads, 3k rpm fans in push pull, dual D5 pumps (Radiators are very effective, but also very high restriction so they need the higher pressure to keep the flow up though the CPU block), and a larger reservoir. I will also switch to some Coolabs Pro liquid metal TIM, that will help lower temps by a few degrees also.

Might be enough to push my temps down below 75'C tdie.


More and more I am convinced that Ryzen's full potential can only be reached with some active cooling, much like the CPU's of old. I really don't want to go back to a phase setup, but I might look into a chiller for 24/7 use.
post #9463 of 17379
Quote:
Originally Posted by madweazl View Post

95° regardless of model.

Man... I am hating this +20'C offset BS.

I understand throttling at 95'C CPU temps, it is a good thing, but 75'C? what the hell...
post #9464 of 17379
Anyway... Validations w/ Bench for anyone that is interested:

4.150 @ 3600 DDR4 1.4v http://valid.x86.fr/alj9hi
4.2 @ 3200 DDR4 1.42v http://valid.x86.fr/frpq9b

Cheers
Edited by Gadfly - 4/15/17 at 10:49am
post #9465 of 17379
Quote:
Originally Posted by ibeat117 View Post

Today my new EK Rubber gasket arrived and to my Luck it´s even worse now, so i fouht i could mesaure the Resistance on these.

Original Gasket : around 1 MegaOhm
New "improved" Gasket : around 60 KiloOhm

With the Original i could at least boot and sometimes Bootloop 3-4 times and with the new and "improved" it doesn´t even Start up no Codes no Errors (Surge Protection?)

No i´m using this:
Warning: Spoiler! (Click to show)

it´s not ideal and doesn´t have much pressure but i´m also contacting EK about this, right now i´m very pissed at this situation.

I peeled the stock backing off of the C6H back plate and applied it to the rubber gasket from HK.

That side was placed on the MB side with the metal back plate on top of that.

I also trimmed the pieces that were sticking out.

No more booting issues related to that....
post #9466 of 17379
Quote:
Originally Posted by Kildar View Post

I peeled the stock backing off of the C6H back plate and applied it to the rubber gasket from HK.

That side was placed on the MB side with the metal back plate on top of that.

I also trimmed the pieces that were sticking out.

No more booting issues related to that....

I did the same until I got the AMD edition mounting screws to use the factory backplate.
post #9467 of 17379
@Gadfly

The 75°C you see for tDIE is not a real sensor. The real sensor is tCTL.

Martin Malik the author made later releases of HWiNFO show tCTL on "X" CPU with the offset removed (that AMD state is applied) as tDIE. This way users could decide what to use, this also means if later tCTL is sorted in firmware members can hide tDIE or he can remove from program.

So until the firmware has an update to make tCTL correct the "system" will think it has reached temps to throttle IMO. This is my "take", I do not own a "X" CPU so can not comment if members see throttle at 115°C or not. The 115°C I'm stating if say 95°C+20°C apply.




All Ryzen should throttle at 95°C, it's just all the temp stuff is in the air.

BTW, nice OC smile.gif , do you have IHS stamp info?
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post #9468 of 17379
Quote:
Originally Posted by gupsterg View Post

@Gadfly

The 75°C you see for tDIE is not a real sensor. The real sensor is tCTL.

Martin Malik the author made later releases of HWiNFO show tCTL on "X" CPU with the offset removed (that AMD state is applied) as tDIE. This way users could decide what to use, this also means if later tCTL is sorted in firmware members can hide tDIE or he can remove from program.

So until the firmware has an update to make tCTL correct the "system" will think it has reached temps to throttle IMO. This is my "take", I do not own a "X" CPU so can not comment if members see throttle at 115°C or not. The 115°C I'm stating if say 95°C+20°C apply.

All Ryzen should throttle at 95°C, it's just all the temp stuff is in the air.

BTW, nice OC smile.gif , do you have IHS stamp info?


Yeah makes sense.

This is an 1800x, and it throttles at 95'C Tctl, so at 75'C actual temps; which is gimping the hell out of me. Basically I have to yank another 10'C off the die with outragous cooling so it will not throttle at 3.9ghz+ with a BCLK OC

Sadly.. I don't have the IHS info, but I will get it when I put all this in the case. I purchased it from Silicon Lottery as a 4.1ghz binned CPU.
Edited by Gadfly - 4/15/17 at 11:02am
post #9469 of 17379
Quote:
Originally Posted by Gadfly View Post

Yeah makes sense.

This is an 1800x, and it throttles at 95'C Tctl, so at 75'C actual temps; which is gimping the hell out of me.

Sadly.. I don't have the IHS info, but I will get it when I put all this in the case. I purchased it from Silicon Lottery as a 4.1ghz binned CPU.
In what tests do you see 95C on TCTL? I've only runned Cinebench test and my TCLT is 75C.
That HWinFO is older, I'm on v5.51 incase they updated something.
Edited by OnSync - 4/15/17 at 11:05am
post #9470 of 17379
Quote:
Originally Posted by Gadfly View Post

Man... I am hating this +20'C offset BS.

I understand throttling at 95'C CPU temps, it is a good thing, but 75'C? what the hell...

The 95C throttling gets turned off if you are in overclocking mode - however, you have to set the frequency higher than the base frequency (3.6 GHz in your case for the 1800X) to enter overclocking mode. The BCLK overclocking is throwing the system off.

You have to set the FID to at least 145 (3.625 GHz) to turn off the throttling, REGARDLESS of where your BCLK is set.

You can run an experiment at FIDs of 144 and 145 to validate what I am saying - 144 should throttle, 145 should not. Let me know if you are able to verify this. My system behaves this way.
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