Technical Support hp probook 640 g1 6050a2566302-mb-a03 turn on but no display

[Dumara]

hi there everyone


hp probook 640 g1 6050a2566302-mb-a03

comes on to no display

came with this fault , i have flashed the bios with almost 3 files from other places, still the same

i can see the lcd come on but no graphics , forced the lcd backlight on with 3.3v

but still no graphics ,

I installed another cpu to test if that's the issue or not but no change.

PCH also gets a bit hot.

any ideas welcome

thanks in advance

 

[Hosein Asadolahi]

hi there everyone


hp probook 640 g1 6050a2566302-mb-a03

comes on to no display

came with this fault , i have flashed the bios with almost 3 files from other places, still the same

i can see the lcd come on but no graphics , forced the lcd backlight on with 3.3v

but still no graphics ,

I installed another cpu to test if that's the issue or not but no change.

PCH also gets a bit hot.

any ideas welcome

thanks in advance

disconnect the lvds flat and test with crt and report the result