R32 not booting and no display

[Msmax]

Need help with this R32, which seems to power up but does not boot.

Looking at the LED's the battery is being charged.
If switched on then:
- Power ON LED comes on
- Harddisk LED blinks a few times
- screen is black, also tried an external monitor
- the notebook can be switched off by the ON/OFF button

Any idea's? GPU defect?

Thanks, Msmax