Jump to content

rx 7800xt hotspot / repaste

Cipher16
Go to solution Solved by WereCat,

Thats thermal paste pumpout issue due to thermal cycling. 

Get graphene pad or PTM7950

Morning Guys, 

 

has anyone had issues repasting a XFX RX 7800xt Merc I was getting crazy hotspot temps of 95+ repasted with artic mx 4 and it was great for about 2 weeks then had to do it again I have already changed it now to mx6 as the mx4 looked to have dried on an area of the die but the mx6 is now also started spiking again after about a month and this is not overclocked, to help with temps ive had to lower core clock and voltage by 10%

 

does anyone have a paste they would recommend for this ? 

 

running latest amd 24.9.1 and fully updated windows 11

 

i dont think the case is to blame its not the biggest "fractal pop air mini with CORSAIR iCUE AF120 RGB ELITE fans 2 intake at the front 2x out on the top and 1x out on the rear"

Link to comment
Share on other sites

Link to post
Share on other sites

22 minutes ago, WereCat said:

Thats thermal paste pumpout issue due to thermal cycling. 

Get graphene pad or PTM7950

Thankyou for your reply, do you have any recommendation on what thickness of pad to use or what size to get ? ive been building and fixing pc's for years but always used paste as ive never had issues until now so this is new to me

Link to comment
Share on other sites

Link to post
Share on other sites

31 minutes ago, Cipher16 said:

Thankyou for your reply, do you have any recommendation on what thickness of pad to use or what size to get ? ive been building and fixing pc's for years but always used paste as ive never had issues until now so this is new to me

They're all "same" thickness, they aren't pads and are designed for CPU/GPU

I'd say buy Kryosheet it's the simplest to use, else PTM7950 but it's kinda a hassle to install (I've used PTM for my GPU and Kryosheet on CPU)

AMD R9  7950X3D CPU/ Asus ROG STRIX X670E-E board/ 2x32GB G-Skill Trident Z Neo 6000CL30 RAM ASUS TUF Gaming AMD Radeon RX 7900 XTX OC Edition GPU/ Phanteks P600S case /  Arctic Liquid Freezer III 360 ARGB cooler/  2TB WD SN850 NVme + 2TB Crucial T500  NVme  + 4TB Toshiba X300 HDD / Corsair RM850x PSU/ Alienware AW3420DW 34" 120Hz 3440x1440p monitor / ASUS ROG AZOTH keyboard/ Logitech G PRO X Superlight mouse / Audeze Maxwell headphones

Link to comment
Share on other sites

Link to post
Share on other sites

3 hours ago, WereCat said:

Thats thermal paste pumpout issue due to thermal cycling.

I get the theory, but we all get the same gpus and thermal pastes.

So why would only a "few" people get such issues ? I bet most gpus are fine for years with the original thermal paste.

I noticed on my last single fan gpu, that the heatsink might rotate slightly on the pcb while being handled (I did handle it from time to time).

I bet that rotation leads to paste runout issues, that's why I did repad and repaste.

But this shouldn't be the case on more common longer gpus.

Edited by leclod

I'm willing to swim against the current.

Link to comment
Share on other sites

Link to post
Share on other sites

21 minutes ago, leclod said:

I get the theory, but we all get the same gpus and thermal pastes.

So why would only a "few" people get such issues ? I bet most gpus are fine for years with the original thermal paste.

I noticed on my last single fan gpu, that the heatsink might rotate slightly on the pcb while being handled (I did handle it from time to time).

I bet that rotation leads to paste runout issues, that's why I did repad and repaste.

But this shouldn't be the case on longer gpus.

Because this is clear symptom of that and I have personally dealt with it before

 

3 hours ago, Cipher16 said:

 I was getting crazy hotspot temps of 95+ repasted with artic mx 4 and it was great for about 2 weeks then had to do it again I have already changed it now to mx6 as the mx4 looked to have dried on an area of the die but the mx6 is now also started spiking again after about a month and this is not overclocked

 

 

 

 

 

2 hours ago, Cipher16 said:

Thankyou for your reply, do you have any recommendation on what thickness of pad to use or what size to get ? ive been building and fixing pc's for years but always used paste as ive never had issues until now so this is new to me

Doesn't matter. PTM7950 is around 0.2mm to 0.25mm thick and you can cut it down to whatever size you want. 

 

Same goes for Kryosheet or Carbonaut though Carbonaut is the least performant one but reusable. 

Link to comment
Share on other sites

Link to post
Share on other sites

27 minutes ago, WereCat said:

Because this is clear symptom of that and I have personally dealt with it before

Paste runout, yes, why not.

Due to thermal cycle, I doubt it. There must be something else.

Edited by leclod

I'm willing to swim against the current.

Link to comment
Share on other sites

Link to post
Share on other sites

thanks for everyone's response, im going to give the kyrosheet a try.

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×