A space problem would manifest only when trying to insert a module bigger than the remaining empty space, which MMTool will warn you either way. You can fill up to the last byte of empty space and the BIOS will work as before. But if the code is not able to handle such large ROMs, you can remove all the safe components and it will still blink while RAID is loading. The problem is not related to chipset version, but to the source code of AMIBIOS8, which was not updated at that time for large ROMs.

OK. Thanks sooooo much for all your expert help guys. Really appreciate it.

I'll see if I can get any communication with MSI going.

Cheers,
Geoff.

I have raised the case with MSI Support. Let's see if we get a reply.

This is the reply I got (after pushing a couple of times):

MSI Tech Support:
"We are sorry that this motherboard is too old, we no longer keep maintaining for such motherboards. There won't be bios update for the MB. We are deeply sorry for any inconvenience casued you."

So I suppose that's the end of the line then. I'll have to stick to 2TB drives in this PC :-(

G.