AGP is primary boot, BIOS upgraded fine but will now try your HDD, CDR, FDD Boot sequence.
I have noticed that if I tap a key the thing boots. Also notice the Motherboard Manual shows jumpers that doesn't exhist on the board. They use too on another board of same model I used about 6 months ago.
One jumper that is missing is the PWR Keyboard on/off which is no longer on the boards PCB. Wonder if its a faulty manufacturer in the board.
Will let you know soon when I have tried the Forum Editors suggestion.