David Taylor wrote:

>Hello again
> 
>Have now tried with a new motherboard (Supermicro P6SBA - BX chipset). Same result. Even when I
remove all other network interfaces I still get the wi0: watchdog timeout errors.
> 
>  
>
I recently had trouble with getting conflicting IRQ's, and watchdog 
timeout was is exactly the error i was getting until i fixed the 
conflicts and then the errors went away never to be seen again.

Modern MOBO's like to share IRQ's by default, *nix does not like that much.

If interrupts are going to another device or driver, then the wi0 would 
not get the interrupt and the watchdog would time out.

Cheers
Brett