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Repasting a MacBook

(christianselig.com)
259 points speckx | 5 comments | 11 Jul 25 12:53 UTC | HN request time: 0.421s | source
1. Havoc ◴[11 Jul 25 17:31 UTC] No.44534899[source]▶
Need to repaste and replace pads on my 3090 (appears to be overheating) and dreading the process, especially the pads.

>[After] Max CPU temperature: 96°C

What? Is that normal for macs?

Vaguely unrelated I'm only buying thermal grizzly paste in future...that factory tour they did was super impressive. https://www.youtube.com/watch?v=HsIk_mMrt2w

replies(2): >>44536322 #>>44536895 #
2. dwood_dev ◴[11 Jul 25 20:04 UTC] No.44536322[source]▶
GPUs are quite easy to repaste. Just order the correct replacement thermal pads in advance and the whole thing is easy.
replies(1): >>44536612 #
3. Havoc ◴[11 Jul 25 20:43 UTC] No.44536612[source]▶
Yeah I'm optimistic. Just anxious cause paying for a new 24gb nvidia card is something I could do without in this GPU market

Found a yt that for my precise card being repadded though so should be ok

4. dontlaugh ◴[11 Jul 25 21:21 UTC] No.44536895[source]▶
It’s normal for any CPU under load with correctly sized cooling to be just under its maximum temperature, which is often 100.
replies(1): >>44539989 #
5. Dylan16807 ◴[12 Jul 25 07:14 UTC] No.44539989[source]▶
Electromigration is a real problem. "Barely enough" is not a synonym for "correctly sized".

I might not hit problems within the lifetime of the device, but it's a pretty tight margin of error. If I can roughly roughly cut aging in half by dropping 10C, then I want to do that 2-4 times.