Solved! which brands of hard drives does HP fit in their HP ZBook 15u G3 Mobile Workstations

PolarisVega

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May 16, 2017
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a HP ZBook 15u G3 Mobile Workstation was returned from a local repair shop as damaged beyond repair after a fall. It came back without the ram modules(32Gig) and the broken hard drive which was returned to me is a HGST make. I doubt if it is the original drive. I had no success on HP's "customer support" website. I want my facts straight before I take on the shop.
part number: M6G49AV serial number: 5CG6144KBR