Asus k75vm no display

[mazloum]

Hello
this laptop displays so,etimes, other times no
the problems begins with booting windows, it takes infiniti to boot, but sometimes it boot normal...
i changed the hard drive but when i boot from windows usb and try to partition the hard, it will do nothing only waiting icon, the mouse will still working...
i tried too many times, the last time i reboot the laptop, i got black screen...
i removed the cmos and waited half an hour, it booted one time...
is there a way to change discrete to uma?
the board is :
la-8222p rev: 1 qcl70
i have the schematic

[mon2]

Re: Asus k75vm no display

Are you using the proper power adapter for this unit?

On some laptops, if the adapter is under rated on the rating, the logic board will run at the slowest speed to use the lowest power.

The issue could be the bios...wait on other comments.

Double check your reference clock sources like the crystals onboard.

Link or post the schematics if on this forum.

[mazloum]

Re: Asus k75vm no display

Yes, the power adapter is the same as rated,..
i reprogram bios, now it is on again, but very slow is installing windows although i am using ssd

[mon2]

Re: Asus k75vm no display

After the bios reflash, did you bios load defaults?

Enter the bios upon boot.

Change the clock to realtime. Save the settings.

Stay in this bios screen and confirm if the clock is accurate a few minutes later.

If not, replace the 32.768khz clock crystal that should be on your logic board.

[Stevedb]

Re: Asus k75vm no display

If you program the bios did you do a clean me from the bios before flashing it.