FiXatoSo, sadly my #HewlettPackard #Probook645 G1 #laptop does not support an M.2 #SSD. :(
For the record, should anyone be looking for this info:
Just received a message from HP support: The M.2 slot of a ProBook 645 does NOT support a SATA interface. Contrary to what some of the manuals might suggest. The only supported SSD option is a 2.5" drive.
The M.2 slot only accepts HP whitelisted WWAN cards. So even an M.2 SSD with PCIe interface probably wouldn't work, but I don't have one on hand to test.
HP Support Forums: ProBook 645 M.2 SSD Compatibility
ProBook 645 M.2 SSD compatibility
I wanted to upgrade my probook 645 with an M.2 SSD, but it is not working. On boot I get a bios error 703, unknown WWAN card. As far as I can see, the probook 645 has a factory M.2 SSD option, however it's unknown if it uses the same M.2 slot as the WWAN card: http://www8.hp.com/h20195/v2/getpdf.a...