HP ProBook 4430s, 4431s, 4330s and 4331s Notebook PCs - Maintenance and Service Guide
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HP ProBook 4430s Notebook PC (ENERGY STAR)
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6.
Disconnect the Quick Launch boar
d cable from the system board.
7.
Position the computer on its
side with the display open.
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Chapter 4 Remova
l and replacement procedures
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