Subject: Re: BootROM for a 380
To: NetBSD Mailinglist <port-hp300@NetBSD.ORG>
From: Zadok <ml@rz.uni-potsdam.de>
List: port-hp300
Date: 01/05/1997 15:12:00
On Sat, 4 Jan 1997, Herb Peyerl wrote:
> Zadok <ml@rz.uni-potsdam.de> wrote:
> > On Fri, 3 Jan 1997, Wiker, Raymond wrote:
> >
> > > What exactly must be done to upgrade a 345? Is it sufficient
> > > to change bootroms and replacing the 68030 card with a 68040 chip?
> >
> > on a 68030 ) and eventually you have to replace the quartz thar produces
> > the processor clock, a 50MHz one should be n a 345, if you want to use a
> > 25MHz 68040 leave it where it is, but you need a 66MHz quartz for a 33MHz
>
> IIRC, that's not strictly correct.
>
> The motherboard on the 345 has an empty socket for the rock and the
> "L-shaped daughterboard" provides its own oscillator (probably 100Mhz
> rock), and when you pull the daughterboard to put the 040 in, you lose
> the oscillator and are required to put a 50/66 Mhz one in the empty
> socket.
don't know yet but I'll see as soon as I have my '040 :-)
bye
Michael