black screen. pc on but nothing in monitor. no beep when ram took away

ASHACRA

Honorable
Oct 18, 2013
1
0
10,510
Hi! I have a Toshiba A300 laptop that used to have lots of overheating problems. Someday i was using it when the display weird totally off and pc shuts down. now it starts, fan runs but the screen NOTHING ... not even into the boot menu. I did some search in web but i m noobish. tried now remove the ram and no beeps is heard at all. in fact removing the ram makes the pc power off sooner. SOME HELP ?