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I thought I would replace my thermal paste because it’s been 8 years and this laptop has not received any internal maintenance. I replaced the thermal paste, applied it evenly with an applicator, evenly screwed down the heatsink and pipe, and now im stuck thermal throttling when the computer boots, and the fan is going at full speed. I do not have the backplate on, but I don’t know why that would make a difference. I am panicking a bit now because I need this laptop to work for school tomorrow.
Pop off the heat sink and take a few pics so we can see your application of paste Adding images to an existing question