Again he's reporting he got it on the underside of the CPU a 2550k. There is no pins, its gold contacts
You don't want to soak an lintel CPU. The IHS has a vent and alcohol will get under it.
Just wipe it off with alcohol preferably 91 to 99%
Also stay away from "Rubbing Alcohol" it has a few extra ingredients you don't want
Isopropyl alcohol (C3H8O), also known as
rubbing alcohol, is an alcoholic mixture intended for external use as an antiseptic; it usually contains 70% by volume of absolute alcohol or isopropyl alcohol; the remainder consists of
water, denaturants, and perfume
oils; used as a rubefacient for muscle and joint aches and ...