I have a Compaq Presario F730 US.
This problem has gotten progressively more frequent. About 6 months after I got every once in a while it would not post bios, the screen would not turn on its backlight, nothing.

It has gotten much more frequent now. Also now even when I get the bios to post and windows loads it just stays black. The harddrive light stopps flickering and it just sits there. If i load into safe mode then back into regular sometimes it will load completely normal but after that sometimes the mouse freezes up. I


m guessing this is a bad motherboard. I have tried reformatting and ran ram+harddrive checks several times; all come out clean. Any suggestions? If it is a mobo problem then anyone know about how much that would cost (I'm not under manfacturer warranty anymore.)