Base enclosure for HP ProBook

HP ProBook 450 G6 bottom cover L45089-001 is the lower enclosure part specified for models with discrete graphics memory. It forms the base cover of the notebook and is used when replacing that component during repair.

The service guide distinguishes this part from L45088-001, which is listed for ProBook 450 G6 models with UMA graphics memory. L45089-001 is therefore the discrete-graphics version of the cover.

HP’s service procedure secures the cover with five captive Phillips screws and two Phillips M2.0×5.0 screws. The cover is lifted off after those fasteners are released, and installation follows the reverse procedure.