Gidday from Downunder,
Chasing the Schematics and also the board view for the HP Laptop board, model

according to the board markings that is read sideways against the the side frame to the graphics card or the DDR4 slot it says the following for the Model,
“MODEL:OPAK”
Then assuming the card was still inserted into the slot, releasing the card and removing it will reveal the full markings printed on the board (not the card),
“DAOPAKMB6FO REV:F”
Below in smaller print is a small logo of I think a backwards R with the letter U with the left stroke of the...