Hi everyone,

Please help with a bios dump for this board:

Asus GL503VM-FY014T
DA0BKLMBAD0 Rev D

the laptop starts and initialize properly (I can hear sounds from windows), but nothing displayed on internal screen or from hdmi

all the voltages on the CPU & GPU rises, tried another screen, cable checked, a closer inspection shows the lack of "EDP_VDD_EN" signal on U14 (using DABKLMB1AA0 boardview as reference).. no short-circuit found and all resistances on CN3 are in normal range..

Where to dig ? I'm suspecting the bios, please help with the correct dump for this board (DA0BKLMBAD0 Rev D)

BIOS on asus is searched for by a sticker on the motherboard.

Thanks for the reply, the sticker on the board is:

60NB0GI0-MB2230-210
31BKLMB00I0 D3GFP

The printed pcb model is:

DA0BKLMBAD0 Rev: D

tested, still no display (windows loads normally)

cleared the me, still no display

Obviously it's not about the BIOS...

This board doesn't have integrated graphics power for the processor, that's why I was suspecting the bios because some BKL boards has.

all the lines resistances at CN3 and eDP channels are in normal range..

+VIN_BLIGHT = 19.27v
+3VLCD_CON = 0v (EDP_VDD_EN = 0v)
PCH_BRIGHT = 0v
EC_DISP_ON = 0v
PCH_EDP_HPD = 0v
PANEL_ID1 = 3.25v
PANEL_ID2 = 3.25v

eDP lines measured at capacitors from source side:

CPU_EDP_AUXN = 455mv
CPU_EDP_AUXP = 455mv
CPU_EDP_TXP0 = 240mv~260mv
CPU_EDP_TXN0 = 240mv~260mv
CPU_EDP_TXP1 = 240mv~260mv
CPU_EDP_TXN1 = 240mv~260mv
CPU_EDP_TXP2 = 240mv~260mv
CPU_EDP_TXN2 = 240mv~260mv
CPU_EDP_TXP3 = 240mv~260mv
CPU_EDP_TXN3 = 240mv~260mv

Where to dig ?