i bought an old dell xps 15 9550, the on button has light and the screen works when i press button D but it doesnt show any blinks at all.. i took bios data from the chip near the PCH

XPS 15 9550
LA-C361P REV 1.0 (A00)
INTEL I7-6700HQ
ST: 3HQWG72

Thank you in advance. ...