Hello, NO DISPLAY in my ancient MS DOS PC - Intel D915 GAVL Mobo Intel Pentium 4 3.0 GHz LGA 775 Processor On Board Graphics (I dunno where DVI port is - haven't tried it. Only connected to the VGA port)!) with a HP CRT monitor.
PSU, RAM OK. MOBO LED ON CPU Fan runs.
Monitor small LEDs flash during POST and then
the Monitor Power Large LED stays on.
No POST BEEPS heard.
More aboutdisplay ancient
well if led's turn on but there is no signal its either bad hard drive or bad motherboard