Fixed my sister up with my old A64 (3500+ Winnie) only to find my old A8V wouldn't have anything to do with it 
Got a B-Grade Gigabyte board which worked fine
Until my sister got it home....
Worked fine for a few days but then crashed playing Black & White 2. Upon reboot it gets to the POST screen, RAM Test OK and then nothing
No drives are detected on IDE or SATA and it refuses to boot any further.
This a dead mobo?

Got a B-Grade Gigabyte board which worked fine

Until my sister got it home....
Worked fine for a few days but then crashed playing Black & White 2. Upon reboot it gets to the POST screen, RAM Test OK and then nothing

No drives are detected on IDE or SATA and it refuses to boot any further.
This a dead mobo?