Repasting 7900XTX lead to less power draw ?

[hermesa]

So I got brand new 7900XTX Taichi and for 2 weeks it increased temperatures a lot ( 10-12C for GPU temperature and 20C for Hotspot temperature) while it was drawing on Performance BIOS 404Watts and 347 on Quiet BIOS. After repasting and trying to benchmark it - now it power draws only 385W on performance and the same 347Watts in Quiet bios mode. Is this normal ?

 

[Nathaaab]

Lower temps lead to lower power consumption, if you're reaching all the same clocks and your performance is equal then everything is good.

 

[hermesa]

Lower temps lead to lower power consumption, if you're reaching all the same clocks and your performance is equal then everything is good.

I can't get to see if the temperatures are same because of the less power draw Ofcourse temps are better now because of the less power draw, and I got 300-400points less in 3D Mark at the FireStrike test

2000 less points in Monster Hunters Wild FSR off , before repasting 37747 111 avg fps ,after repasting 35332 104.42 avg fps

I can't get to see if the temperatures are same because of the less power draw Ofcourse temps are better now because of the less power draw, and I got 300-400points less in 3D Mark at the FireStrike test

2000 less points in Monster Hunters Wild FSR off , before repasting 37747 111 avg fps ,after repasting 35332 104.42 avg fps

So here is an little upgrade - For some REASON , my AMD settings were all touched and I don't know why , the power limit was touched with -5% and sometimes -10% , I reseted all to the 0% and turned it off - everything is good. 10C less Hotspot temperature and still the same delta , Consider this as a win

 

[Nathaaab]

If the temps increase again in the span of the next few weeks/ month I suggest trying something like PTM7950 which should be much more resilient over time than paste.

 

[Fishymachine]

Semiconductor electrical resistance changes with temperature, so yeah this makes sense

 

[FreedomEclipse]

Which paste did you use?

 

[hermesa]

Which paste did you use?

MX-6 , but there is another problem now.It seems like the 4 screws on the gpu heatsink became rounded because I don't know the correct pressure and when to stop and when i tried looking for replacements no one from the description in the ads from Amazon doesn't seems like it will fit.

It looks like the ones that are on the gpu are m2 and not 7mm but something like 5mm , because the whole screw with the head is around 5mm long ,and the head is little bit smaller(not wide as the ones in the Amazon offers that are for standart old gpus)

 

[Frick]

Did you dissasemble it again? A good rule of thumb is to stop when the screw will not easily screw anymore.

As for screws those are absolutely avaliable. It looks like a normal "countersunk screw" (is what google tells me they're called in english), should be avaliable anywhere you buy screws.

 

[hermesa]

Did you dissasemble it again? A good rule of thumb is to stop when the screw will not easily screw anymore.

As for screws those are absolutely avaliable. It looks like a normal "countersunk screw" (is what google tells me they're called in english), should be avaliable anywhere you buy screws.

It doesn't seems they are the same as the ones I can buy from Amazon for example.The carving on the screw is not the same at all.And they have extended heads I don't want to risk and cause GPU damage or something like that. The first time when I dissasembled it was good ,but wasn't sure if some of the thermal pads were fitted properly despite the VRM sensors counting good temepratures. So I had to unscrew it , repaste it again and assemble it again but this time the screws got rounded since it was really hard to tighten the screws which are really soft and get rounded easily

 

[Frick]

It doesn't seems they are the same as the ones I can buy from Amazon for example.The carving on the screw is not the same at all.And they have extended heads I don't want to risk and cause GPU damage or something like that. The first time when I dissasembled it was good ,but wasn't sure if some of the thermal pads were fitted properly despite the VRM sensors counting good temepratures. So I had to unscrew it , repaste it again and assemble it again but this time the screws got rounded since it was really hard to tighten the screws which are really soft and get rounded easily

Amazon is a bad place for screws. Where do tradesmen shop where you live?

 

[hermesa]

Amazon is a bad place for screws. Where do tradesmen shop where you live?

Nowhere. We have only resellers in our country for main hardware parts. I doubt there are service shops here that actually have spare parts for this type of high-end gpu hardware...

 

[Frick]

Nowhere. We have only resellers in our country for main hardware parts. I doubt there are service shops here that actually have spare parts for this type of high-end gpu hardware...

You have mechanics and welders and stuff though. Where do they shop? That looks like a normal M2x5 flathead screw, someone will have those. It's not an exotic part.

Or if you have like shops for used GPUs and stuff you might find parts for scrap.

 

[AVATARAT]

So I got brand new 7900XTX Taichi and for 2 weeks it increased temperatures a lot ( 10-12C for GPU temperature and 20C for Hotspot temperature) while it was drawing on Performance BIOS 404Watts and 347 on Quiet BIOS. After repasting and trying to benchmark it - now it power draws only 385W on performance and the same 347Watts in Quiet bios mode. Is this normal ?

Thermal paste is a temporary solution, now you need to look for a Thermal Grizzly Kryosheet, Honeywell PTM 7950 or just water cool it. This card is very hot as some people have told you before.

 

[ShrimpBrime]

So I got brand new 7900XTX Taichi and for 2 weeks it increased temperatures a lot ( 10-12C for GPU temperature and 20C for Hotspot temperature) while it was drawing on Performance BIOS 404Watts and 347 on Quiet BIOS. After repasting and trying to benchmark it - now it power draws only 385W on performance and the same 347Watts in Quiet bios mode. Is this normal ?

The theory would be a hot running GPU would leak voltage and require more power to sustain transistor operation. That's why water cooled GPU hits higher clocks. That's why a extremely cooled GPU would hit higher clocks even yet, all at the same VID request.

The rest is speculation without actual numbers from testing.

 

[hermesa]

Thermal paste is a temporary solution, now you need to look for a Thermal Grizzly Kryosheet, Honeywell PTM 7950 or just water cool it. This card is very hot as some people have told you before.

I ordered ptm 7950 sheet and electrical caliper to measure the screws so I can know what to order... The problem is it doesn't seems like there are any avaliable screws like the one on the GPU which are from ASRock. I contacted them - waiting for response

 

[Chomiq]

So much for warranty, huh?

 

[hermesa]

So much for warranty, huh?

The factory paste was pumped out and it rised from 95 to 99 C hotspot in 1 day , before that it rised from 75-80 to 92-95C. In the last 95C to 99C rising the GPU die temperature rised also from 55max to 63C. I guess in couple of days anyway was gonna reach 110C so yeah... No other choice.The sillicon is good tbh and I wouldn't RMA it for ''repasting'' reason, because ASRock would have sent me another GPU and I would have encounter the same problems in 1-2 weeks of use.