is there a limit for bios update please help

What happens when you try and flash it?

Were you flashing the bios while in windows?

Can the computer P.O.S.T. or load right now?

Remove the floppy and try to boot normally from power off. When you start the machine, does it boot normally without you pressing any key or doing anything else?

Can you use cpu-z or look durring the POST to see if the new bios is installed or your old one is present? If the new one is installed and it loads into windows I don't see what the problem is. The other thing you can try if the new bios is installed is load the previous one back in and see if your problem goes away.

Then the new bios isn't installing. Something may be wrong with it. Try downloading it from a different source or get an older bios, maybe one or two versions back, and install it and see if the problem goes away.

It's not. But if you install the older version and the problem goes away then you'll know that new bios is your problem. Just make sure the older version supports all your hardware.

Well the only note of caution I'd make is to only update the BIOS if you need to i.e. fixes a problem or support a new cpu upgrade etc. In the past it was a DOS only job with boot floppy, not much effort really but enough to serve as a check.

My last ASUS board installed an update tool that included a Windows BIOS update utility. I've never really trusted them in the past but I weakened and used it a few times, it's a terrible convenience thing to have. The last time I used it, it happily downloaded the BIOS file and promptly failed towards the end of the write process (and no option to keep the boot block either).

Thankfully I was able to get a replacement chip from ASUS cheaply, however, not without getting my ears chewed off by a support technician. So I've learnt to be a little more cautious and that I doubt I'll ever trust a WIndows BIOS flash utility again.

Karl