Bios Problem (Help!)

[McPhee]

I just installed an update on my Biostar TF560 A2+ and now the computer won't boot.

I followed the instructions on the Biostar website, the update seemed to install correctly and the computer reset (after a message telling me it needed to). Upon restart it basically did nothing. The machine powered on, the fans spun up but nothing is displaying on the screen.

Any ideas? I've no idea how to solve the problem or even if I can!

Is it new motherboard time?

[peterb]

Almost certain to be a corrupt bios. Options are:

RMA the board/return it for the bios to be replaced/reflashed
If the Bios is removeable, you might be able to purchase a replacement, or get the eprom reflashed without returning the board.

How old is it?

[hermeticist]

Might be worth trying to clear CMOS? This is normally done by moving a jumper on the motherboard, some boards have a reset switch.

[ajones]

Might be worth trying to clear CMOS?

Seconded. When I upgrade a BIOS, I set it to default, restart, clear CMOS (with jumper, removing the CMOS battery and leaving the system switched off for 30 mins.... but that's maybe just DFI paranoia).

Once flashed, I repeat the procedure to get into Windows (if possible) before playing about with BIOS settings.

[McPhee]

What is the CMOS?

Whatever it is does it worked! Posting this from my computer now

Thanks for the help, much appreciated!

[ajones]

The CMOS is an area of volatile memory on the mobo that stores BIOS settings (hidden and user) and other low level system parameters. Sometimes it can get screwed up and have settings that are incompatible / corrupted with respect to your BIOS, so they need to be reset. Shorting the jumper disconnects the memory from the small battery on the mobo to clear those settings. The BIOS then can reinitialise the CMOS on a reset.