Have you located the exact printed on the PCB?
To effectively fix a motherboard, you ideally need both the and the Boardview (.BDV, .BRD, or .CAD) . Where to Find the Files hp probook 4520s boardview
The HP ProBook 4520s motherboard is a complex piece of hardware that requires a thorough understanding of its layout and components. With BoardView, technicians can: Have you located the exact printed on the PCB
Power jack and DC-in section