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From: gnome@oliveb.UUCP (Gary)
Newsgroups: net.micro.att,net.micro.pc
Subject: Re: 6300 display controller disable (followup)
Message-ID: <1083@oliveb.UUCP>
Date: Tue, 26-Aug-86 14:06:07 EDT
Article-I.D.: oliveb.1083
Posted: Tue Aug 26 14:06:07 1986
Date-Received: Wed, 27-Aug-86 10:21:32 EDT
References: <1071@oliveb.UUCP>
Distribution: net
Organization: Olivetti ATC; Cupertino, Ca
Lines: 31
Xref: mnetor net.micro.att:1420 net.micro.pc:6285

> Well, actually, on REV P4 boards (theoretically all rev's that don't
> have the 3-pin disable jumper) you should try removing the LS00 and
> connect 3,11,14 together and 7 & 8 together.
> This should disable both the IO and memory address decoders and leave
> the bus clear for other display controller cards.
> 
> You shouldn't be able to boot-up with the other configuration...
> 
> Gary
> 
> >- Usual disclaimer -<
>
> (hplabs,allegra,ihnp4,glacier)oliveb!oliven!gnome
> 

One other thing, which I just found out --

If you can't boot with the add-on display controller in place,
you will probably have to set DIP switch 7W (closest to the back
of the machine) to "No controller mode".

Switch
 1  2  3  4  5  6  7  8
 -  -  -  - on on  -  -


Don't forget to write-down the original switch settings!

Good luck!

Gary