[Sammelthread] Offizieller AMD [[ RX6700 // RX 6700XT // 6750XT // X6800 // 6800XT // 6900XT // 6950XT]] Overclocking und Modding Thread [[ Wakü - Lukü - LN2]]

[ApolloX]

Coolant ist "minus 15"?
GPU core temp feels ok, but hotspot is too hot.
Do you use liquid metal?

 

[ShirKhan]

Wie so oft: wenig sinnvolle Frage ohne Verbrauchsangabe. Wir wissen doch, dass es da eine Spreizung gibt. Für 300 W ist das Delta zu groß, für 500 nicht.

 

[Grindcore77]

OK, that's around 550w...
conductonaut extreme....
Tried with normal thermal paste temps were worse

 

[ShirKhan]

Hört sich für mich okay an.

 

[Grindcore77]

Dnt really wanna pull the card out again 🙄 😆

Beitrag automatisch zusammengeführt: 25.05.2025

This is the set up now..in a chill box..no condensation to worry about!

This last run was at 1.32v

 

[s.nase]

Viele moderne Kühlschränke haben doch einen Entfeuchter verbaut. Könnte man nicht auch so eine "defreezer" nicht auch im Tiefkühl-PC verwenden, um die Kondensation zu unterbinden?

 

[ApolloX]

65-27=38 Grad Delta halte ich auch bei 550W für viel. Ich weiß, ShirKhan, dass du da toleranter bist, aber ich denke, das könnte auch etwas geringer sein. Wir sprechen hier ja fast von 40 Grad.

 

[Techlogi]

@Grindcore77 Could you please tell a bit more about your cooling setup? Thx!

 

[Grindcore77]

I think 65-27 = 38 degrees delta is a lot, even at 550W. I know, ShirKhan, that you're more tolerant, but I think it could be a bit lower. We're talking almost 40 degrees here.

Yeah i was thinking so myself...oh well time to drain the loop again 😆😆

Beitrag automatisch zusammengeführt: 25.05.2025

@Grindcore77 Could you please tell a bit more about your cooling setup? Thx!

Is just a modified air conditioner....to run below 0c....pumping ethalyne glycol with a strong submersible pond pump....
Temps controlled with inkbird...
pc is in a beer cooler...everything inside except the PSU....
First component in the chill box is a radiator with fans that cool the inside air of the box to around 0c thus lowering the dew point enough that sub zero temps can be achieved without condensation..being in the box minimises humidity with the chilled air

 

[ApolloX]

oh well time to drain the loop again

Don't blame me if it didn't help. But if you also feel that 38 degrees are quite a lot, then consider it as hobby work on a Sunday.

 

[Grindcore77]

Haha yes so true!!

 

[ShirKhan]

Ich weiß, ShirKhan, dass du da toleranter bist

Echt? Wusste ich nicht. Nur bei anderer Leute GPU-Temps.

 

[Grindcore77]

Lol..of course!

 

[Grindcore77]

Devcom was using same model wonder what his temps are like

 

[RedF]

Würde sowas in die Kiste legen:

Wenn es ein geschlossenes System ist.

 

[Grindcore77]

Yes i have some dessicants in there...Activated alumina

 

[RedF]

Silicagel, i use this to dry my 3D Print Filaments.

 

[Nachzügler]

1.35v und bei Minusgraden den Core hochtreiben? Sturm und Drang -Zeiten sind bei mir Gottlob vorbei😅
Shirkahn, ich kann mich nicht oft genug bei dir bedanken, für deine Einstellung. Hier eine NonXT 6800er, als 7800XT Killer.
Und meine nagelneue Toxic 6900XT on water, geht ab, wie Schmidts Katze.
Ich musste nur etwas mehr Saft drauf geben, weil er nach dem Game immer abschmierte.

 

[Grindcore77]

Ok...gave it a redo with LM....also used a putty instead of pads...i had no 1.25mm to change from 1.5mm...i think i just needed a bit better contact...and yep dropped 10c off hotspot...30c delta at 550w...
Also managed to get my best graphics score!
27358....i have uploaded to futuremark but i think something is up with it..cant use the search function for some reason..it also hasnt shown up in my results either...so dunno....
That was at -6c coolant temp...1.325v
I can get this contraption down to -20c so that will be sometime in the next week...
Gpu temp was 24c max...
The thermal putty i used was the thermal grizzly advanced...all they had near me...memory temps and other temps all sweet...all around 20c

 

[Grindcore77]

I scored 25 263 in Time Spy

Intel Core i9-12900KF Processor, AMD Radeon RX 6900 XT x 1, 32768 MB, 64-bit Windows 11}

www.3dmark.com

This the best so far.....pretty much maxxed the clocks....so gonna have to look elsewhere...
More MPT meddling 😆😆

Thats 1.325v....so if anything will push a few more mv through it and see if i can get a bit higher core clock

Will post up mpt/mct settings when i get a chance...
Also this was with MPT only no evc,i have one hooked up but would i actually get better results using that instead of software?

 

[Grindcore77]

Also!...the xfx speedster zero uses an EK block..no leaks at all until i reach around -10c then it develops a small drip...ive tried tightening the nuts that hold it to the card but no joy...so the o ring is failing at those temps? Or could the plexi be warping?...its only in one spot...i was thinking of pulling it apart and maybe trying some type of sealant where i think the leak is coming from? Im guessing trying to find an o ring that would fit it made of a diff material suited for freezing temps wouldnt be an option?

 

[ApolloX]

Boa, No clue, how to fix this. I never went so far down with temperatures.

 

[Grindcore77]

Yeah...i could always just pack shop towel around it for runs 😆😆 aint that bad a leak..but bwing in that chillbox there is zero insulation done...but a permanent solution would be the best 😀

 

[Grindcore77]

Ok got a few more runs in today..i just tried tightening the screws a bit more and packed around/under the gpu with towel...

Cracked the top 10 but only just...i can see you guys up ahead of me....will keep trying!

27603-1.337v
-15°C coolant temperature
Upped voltage bit by bit..kept raising core clock and score kept going up...
Crashed on the last run at 3050mhz....
So dunno if I should keep bumping up the volts or im probably at the limit...
Anything in MPT you can see to try guys?

I scored 25 725 in Time Spy

Intel Core i9-12900KF Processor, AMD Radeon RX 6900 XT x 1, 32768 MB, 64-bit Windows 11}

www.3dmark.com

I know photos are frowned upon in here but was the quick and dirty way to do this on the phone..

i See some of the guys ahead are using a much later driver...maybe i need to give that a try...24. Something?

 

[Grindcore77]

I scored 25 760 in Time Spy

Intel Core i9-12900KF Processor, AMD Radeon RX 6900 XT x 1, 32768 MB, 64-bit Windows 11}

www.3dmark.com

Grabbed another spot....gonna try 24.10.1 driver ozver the weekend

 

[Grindcore77]

Had to put a stop to these shenanigans for now...the leak seems to be getting worse...and i wish to push the temps to the limit....ive pulled the card out and removed the face of the waterblock..im thinking a small bead of hylomar next to the o ring...all the way around may be just what is needed to help seal this thing.I dont want to put a sealant on top of the o ring itself...bit of trial and error may be needed here...but thats all part of the fun? 😆😆

 

[Grindcore77]

Well the hylomar did the trick....no leaks!! So hopefully a few more runs this week

 

[Grindcore77]

Ok all im gonna give it a run with the evc...now i think i know why i should use it...i cant see more than 1.35v using software...with the evc i can go higher than that no?...only testing at the moment...
Just one thing though...when i click find devices in the evc software i just get devscan...then nothing and then no error in brackets...havent had this behavior before..but it has been a long time since i used it

 

[Grindcore77]

Hey guys...might you know why when i try running time spy in window mode the fps is capped at 60hz? Im not running adrenaline..just driver....when i run full screen i get the correct fps for the oc'ing im doing

 

[ApolloX]

In a Window, the load may be less, thus, cheating?
Maybe that's a prevention measure? But this is just guessing.