How To: ThinkPad T530 Hackintosh Catalina - Guide, EFI & Config.
Flashing a T530 with an external flasher - Is there anything you have to do with the stock bios image before flashing? Im not interseted in any mods(yet!), im just trying to
ThinkPad W520 BIOS settings to allow Discreet Video mode, without Windows 8 freezing - YouTube