9,x 24"

Only 24" 9,x has replaceable GPU. 20" are all soldered onto the main logic board.

All Upgrade Info Almost Same as  11,x 10,x

GPU Selection, Installation are all basically identical to 11,1 10,x

Only difference is 9,1 is LVDS and 11,x is eDP ( LVDS eDP Explanation ) Also GPU vBIOS for 9,1 and 10,1 are different even though both are LVDS

M4000 LVDS vBIOS

??? No M4000-EnableGop91-LVDS.rom?

M5100 EG LVDS vBIOS

M5100-EnableGop91-LVDS-HynyxAFR.rom.zip

M5100-EnableGop91-LVDS-HynyxBFR.rom.zip

??? No Elpida?

Note the 3 VRAM variations of M5100 on 11,x. But only 2 variation of vBIOS for 9,x. TODO : What file works for Elipda VRAM? Maybe M5100-EnableGop91-LVDS.rom.zip? Probably developed first before realizing need additional nomenclature to decode VRAM version?