Computer starts, without video.

The cabinet starts, the strangest thing is that there is no screen, no image:

Try these sequence
> clean fan> cooler> verify that the hard drive boots> replaced memories> replaced cmos battery> clean all peripherals > change vga cable> with another monitor> source replaced > clean processor> change jumpers position> panel cables placed on the correct place.
Is there something else he has not done?The motherboar is foxcon n15235.Please suggestions. Thank you

Take a clear picture of the back of your computer and a clear picture of the back of your monitor. Let's see what that all looks like.

Examples:

Cast said:

The cabinet starts, the strangest thing is that there is no screen, no image:

Try these sequence
> clean fan> cooler> verify that the hard drive boots> replaced memories> replaced cmos battery> clean all peripherals > change vga cable> with another monitor> source replaced > clean processor> change jumpers position> panel cables placed on the correct place.
Is there something else he has not done?The motherboar is foxcon n15235.Please suggestions. Thank you

No picture at all, not even BIOS screen ? Control light on monitor is doing what ?

Of note, he says he's still on 14393.

swarfega said:

Of note, he says he's still on 14393.

If there's a HW problem, OS is irrelevant.