I found out that it will work with IRQ 11.

What you have to do is disable all the nice features adaptec allows for.

When you select the option on the card config (Ctrl-A) and scroll through
all of the options it will tell you and warn you about Unix support of
this option.

Thanks to All

Vince

On Fri, 20 Oct 1995, Guenther Grau wrote:

> Hi Vince,
> 
> > My system boot fine until it finds the SCSI controller. It tells me if 
> > finds the Card at IO 0x300 IRQ 11 
> > 
> > the I get this:
> > 
> > scsibus 0 at aha0
> > 
> > probe0 (aha 0:0:0) timeout
> > adapter not take commands. frozen
> > panic
> > 
> > Any ideal ?
> 
> Well, I _think_ I struggled with the same problem. For some unknown
> reason someone seems to have changed the default values for some
> interrupts. My card, an AHA-1515 with Bios, gave a similar message, because
> the hostadapter was set to the default interrupt 11, but NetBSD expected 
> it to be on 12. This lead to a timeout msg just like the one above.
> 
> Double check your 1542 and see, which interrupt it is configured to,
> then compare this with the NetBSD boot msg. (IRQ 11, and IO 0x300)
> which you describe above. and adjust either the kernel or the settings
> on the hostadapter.
> 
> Hope that helped.
> 
>   Guenther
>