One tiny discovery from the drawn out saga was that the HP Maintenance Manual was not quite correct when it specified the capacity of the two different HDD carriers or cradles for the Z1 workstation. At p.46 the manual says:
- The workstation requires one of the following supported carriers:
◦ 671193-001 supports one 3.5-in hard drive
◦ 671192-001 supports one or two 2.5-in hard drives - Combining a 2.5-in hard drive and 3.5-in hard drive is not possible.
Carrier 671193-001 also supports one 2.5-in hard drive; The bracket holding the 2.5" drive just snaps into the pre-drilled holes in the carrier - it is what I did.
I suspect that carrier 671192-001 will also support a single 3.5" drive as it too plugs into the same holes.
Tom