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Best thermal paste to repaste a Rtx 4090

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4.2K views 15 replies 8 participants last post by  SeanUk  
#1 ·
Guys what’s your recommendations Best thermal paste to repaste a Rtx 4090. And do I need to replace the thermal pads off the memory or leave the original ones on if they are ok
 
#3 ·
Honeywell PTM 7950, Thermal Grizzly Kyrosheet, DOWSIL TC-5888, Polartherm X10, or maybe Thermal Grizzly Duronaught for the GPU core. A lot of otherwise well performing TIMs aren't durable enough to last without hotspot deltas creeping up as time goes on.

I would always replace the pads on the power stages, but unless the GDDR6X pads are obviously damaged, or this is a model with unusually bad memory cooling, I wouldn't bother replacing the pads on the memory. The RTX 4090 doesn't benefit much from extra memory cooling.
 
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#5 ·
Kryonaut has poor durability and is not good for long term direct-die applications.
 
#6 ·
#14 ·
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