GPU cooler mod, need advice

[Dunkan77]

Hello guys,

I'd like to follow up on my old thread I started explaining what and why I'd like to do to my GPU's heatsink, it's sorta long to explain so please just read the old one as I've explained with pictures and in detail what I'm about to do.

So basically I found some PS3 copper shims that supposedly increase cooling for the core (I don't know how since I assume it doesn't have the misaligned cooler like I do) and It's about the size I need it to be. I also found a seller on ebay who sells cut to size copper sheets that are 0.8mm in thickness vs the 1.2mm thick PS3 shims and I'd actually like a rectangular 30x20 piece just to cover the 3rd heatpipe so this is why I'm considering the bigger sheet to cut it to size. My thinking is if I take the thinner shim it will be less big of an insulator (even if it's copper I'm still adding another layer between the core and heatpipes) but I'm not 100% certain on that and this is where I need your advice. I'll see what temperature whichever route I go to yields and since they're so cheap I can not even use them if they make things worse. 

PS: I've taken into considerations changing thermal paste and I will buy NT-H1 fairly soon which should only improve what I will see. I also know the risk of shorting things out and the extra height that the screws might not be able to reach to.

Thanks 

[W-L]

Unless you plan to redo the mounts your going to be applying more mounting pressure on the bare die due to the thickness of the shims. I would just change the paste and call it at that really, the heatpipe placement is not an issue as it was tested previously and concluded to make no difference. 

[Dunkan77]

Would bumpers I can wedge under the overhanging part improve it? And I'd like to know where they tested the heatpipe placement, can you please link it or tell me what to search for?

 

[W-L]

33 minutes ago, Dunkan77 said:

Would bumpers I can wedge under the overhanging part improve it? And I'd like to know where they tested the heatpipe placement, can you please link it or tell me what to search for?

 

Sorry not test but concluded upon the concern, as the die makes contact with the base metal the heat will be transfer to the heat pipes accordingly. As for the shim you would need to adjust all the mounting points accordingly or risk cracking the die if you apply too much pressure. 

 

https://www.eteknix.com/evga-respond-possible-design-flaw-gtx-970-acx/

Edited August 28, 2017 by W-L

[Dunkan77]

Okay then I'll just buy new thermal paste and see what it does as I'm maxing out at 80C at 60% fan speed with AS5