Subject: Small Warning for Xcl
To: None <amiga@NetBSD.ORG, amiga-dev@NetBSD.ORG, amiga-x@NetBSD.ORG>
From: Markus Illenseer <markus@TechFak.Uni-Bielefeld.DE>
List: amiga-dev
Date: 01/31/1995 12:35:40
 A small warning for all users of Xcl X-Server from Kari:

 It is possible to destroy your graphic boards hardware using this server,
even if you use the default settings. 

 The default settings for the X-Server option 'memclock' - which is 
responsible for the clock rate in the cirrus chip and the access time to 
the on-board RAM - are 65MHz which is too much for a Picasso II with only 
60ns RAM and most probably also for the other Cirrus-based boards.
 You should use '-memclock 50' to use a 50MHz clock rate, maximum is
up to you, i suggest no more than 60MHz for a 60ns RAM board. For 40ns
you might want to use a max of 65 - 70MHz.

 But as usual - use at own risk, I cannot even blame Dagge because the
other Cirrus boards may be resistant for over-clocking.

Markus Illenseer