Residue of heat paste on the motherboard
Residue of heat paste on the motherboard
Refers to the image provided. Make sure to use fresh thermal paste before installing the cooler.
Many pastes aren’t conductive, so it’s safe to leave them as is. You might want to clean them more thoroughly with a paper towel lightly sprayed in isopropyl alcohol or sanitary alcohol. Alternatively, use a cotton swab dipped in acetone—commonly found as nail polish remover.