PLEASE HELP HotFlashing w/ two different size memories.

[szabi]

Hi!

I have the same problem like in the link below:
http://www.wimsbios.com/phpBB2/viewtopic.php?t=8026

My mobo is a Procomp BVC1B, w/ 256kb flash Bios
I've tried hot flashing it w/ an older motherboard, that has a 128kb Bios
only.

The problem is, that Uniflash only writes one half of the chip, (awardflash freezes after I type in the file name) though it detects correctly the type and size!
I will try to write twice (mirror) the older mobo's Bios into the 256kb
chip, boot from this, and reflash it w/ the BVC1B's Bios.

Any ideas are welcome!

(I still don't understand, why freezes the bootblock Bios, after inserting the disk?! - disk accessing interroupt problem?)

[edwin]

the flash circuit on that older board may show what chip but cannot address all of it. Get your jands on another board that has 256kbyte chip of itself already...

[szabi]

OK, thanks for reply!

The funny thing is, that when I flashed the older boards BIOS in 256k format (concatenated), as I mentiond earlier, it worked perfectly!

I have buildt a small PCB w/ two 32 pin sockets connected in parallel, a cable, and a third socket on the end.
With a small switch, I'm changing between the two flash chips. (tieing the according CE# pin (they are pulled up w/ resistors) to the ground)

So, I'm not exactly hotswapping.