Hi,
my computer doesn't start, to be precise it turns on, I hear the fans
but monitor hang on in stand bye.
I can't hear the RAM count; no sound from internal speaker.
I don't have installed other hardware, computer was working correctly,
without problems, all of this has happened suddenly.

I have an asus motherboard with 800 mhz cpu, 512 RAM (2x256), video card
AGP asus, ethernet card, controller scsi, sound card c-media, three hard
disks (one of them is scsi).

I have tried two different monitors, another video card (PCI), I have
unplugged drives and cards, cleared the CMOS, but no results.
I have also tried with other RAM, without solving the problem.

Can you help me,
thank you and sorry for my english, I am italian.