thermal pad dimensions for cpu and gpu
I want to replace the thermal paste on both CPU and GPU with a Carbonaut thermal pad.
What dimensions should I cut?
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Paste is the better solution here. While I agree a pad is a lot easy to put on, it’s not as effective as paste in this Application.
Thermal paste is designed to fill in the unevenness of the two surfaces at the micron level, between the raw chip and the copper plate of the heat sink.
The effectiveness is the distance between the two is the issue, paste creates an ultra thin layer unlike the pad which is about .30 mm of thickness.
In desktop systems like iMac’s we use thermal pads between the VRAM chips and the heat sink. We still use thermal paste on the CPU and GPU chips. The reason here is the elevation of the two chips to the heat sink we need to use a thermal pads between or a special gapping paste (which is not as good as the pad).
Update (01/05/25)
To help you see how a good thermal paste is still better than thermal pads take a look at this. The top is the paste and the lower the bar the better.
My own testing supports this as well.
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I understand, but I'm still going to try out a thermal pad. Would you happen to know the ideal dimensions? The CPU pad should be around 25x13mm(?), but the GPU pad I have no clue.
@ensharpness5 - Why are you going down this path? Explain to me why.
I don't want to have to clean the paste every few months or so and paste is messy. I hate messy. I'm willing to "sacrifice" +5 degrees C by using a Carbonaut and never have to check on it.
@ensharpness5 - What! You are replacing the thermal paste every few months, that’s crazy! A good thermal paste should last for average users a good four years. Even my heavy pro’s as well as my own gear which I often run hard can easily get two years without a problem.
I think you’re chasing the wrong issue. What are you running on your system for an OS and Apps? Also how much RAM and what is your drive make and model.
