HP 640 ProBook G3 Notebook PC & HP 650 ProBook G3 Notebook PC - Maintenance and Service Guide

Table Of Contents
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Component Description
(1) Docking station support holes Support an optional docking station.
(2) Vent Enables airow to cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal
for the internal fan to cycle on and o during routine
operation.
18 Chapter 2 External component identication