Since you're getting a blank screen, a bios flash probably won't work since the bios isn't even getting to the phase where it realizes you have a floppy drive. It can't hurt to try, though.
Your motherboard site can give you instructions on how to update your bios here: http://220.127.116.11/evisn/download/update.htm
This is where you can download Award Flash: http://18.104.22.168/evisn/download/bios/Awdflash.exe
And this is where you can download the bios bin file: http://22.214.171.124/temp/jetway0c/downloads/bios/868as/868ASA05.BIN <-- *that bin file is for the 866AS so if you have the pro, ultra, or ultra raid versions DON'T download that file... you can find the bin files for the other versions at http://126.96.36.199/evisn/download/bios/download1.htm *
If that doesn't work, there's a nifty little tool called the bios savior you can buy that can help you fix your bios *think of it as a clone of your bios that can load your bios files back into your bios even if it's corrupted*. That can be found here: http://www.ioss.com.tw/web/English.html
If you don't want to put out the cash for that though, there's another option called hot flashing your bios. It's a bit on the risky side, but as long as you're careful you should be fine. Do a search in Google for the keywords *hot flash bios "how to"* minus the astricks. The basics involve getting a Windows based flash utility *NOT a DOS based utility* on the working computer along with a copy of your bios bin file, booting the working computer up into Windows, taking the CMOS chip out, replacing it with your bad CMOS chip *the CMOS is only utilized at startup, which is why this can be done*, flashing your bad CMOS chip, and then shutting down the computer and putting your now good CMOS chip back into its motherboard. As long as your bad CMOS chip is the same type as your working computer's CMOS chip *i.e. as long as it can fit into the working computer's CMOS slot*, you're good to go.
Jetway 866 AS motherboard failed to boot yesterday, with no post or beep at all, and blank screen.
There is power on all optical and hard drives, but machine will not post. Fitted new 400W power supply, reseated all cards and memory, and removed Athlon XP 1800 CPU, then reseated using Arctic Silver on heat sink contact surface. Also fitted new 3v CMOS battery.
Still no beep at all, although HDD spins up. Also monitor screen black, with seemingly no signal.
Can I assume that the mother board has collapsed, or the CMOS chip fried, or somesuch?
I read where one user said that he downloaded a BIOS retrieval disk onto a floppy, powered on with it in the drive and after a pause, everything fired up as normal.
Does anyone have any knowledge of this process, please?