Subject: How to differentiate a full 68040 from an LC one?
To: None <port-mac68k@NetBSD.org>
From: Julio M. Merino Vidal <jmmv84@gmail.com>
List: port-mac68k
Date: 05/24/2005 16:02:53
Hi all,

this may not be the most accurate list to ask, but given that many of
you have replaced the 68040 chips in your machines from LC ones to their
respective full versions, you will probably know it.

The thing is that my Mac has the 68LC040 chip, and I would like to
replace it with a full one to get less problems with NetBSD (a build
with softfloat used to work correctly a long time ago, though) and to
have a faster system.

So I searched a bit and found a guy that's selling one.  He knows it's
a 68040RC chip, and that it's not the EC model.  (According to the
references I've found, RC only denotes that it's made of ceramic.)

However, he doesn't know whether it's the full one or the LC one and
has no way to test it.  The chip has a heatsink attached to it, so the
identifier is no visible.

Do you know of any specific details that differentiate them?  For
example, two 68LC040 I've seen don't have a heatsink, while that one
does...

Thanks,

-- 
Julio M. Merino Vidal <jmmv84@gmail.com>
http://www.livejournal.com/users/jmmv/
The NetBSD Project - http://www.NetBSD.org/