HP ProBook 4540s Notebook PC HP ProBook 4440s Notebook PC HP ProBook 4441s Notebook PC - Maintenance and Service Guide

NOTE: For UMA models, thoroughly clean thermal material from the surface of the system board
(1) and heat sink (2) each time you remove the heat sink. All heat sink and processor spare part kits
include thermal material.
Reverse this procedure to install the heat sink.
Component replacement procedures 79