> >Cool idea -- flash on a DIMM. Has anyone ever
heard of such a beast?
>
> The Apple Set Top box uses flash SIMM/DIMMs for it's boot
> code.  At least the one I have does.  It's a 68pin SIMM with 8 Intel
> E28F020 flash memory chips (256k x 8). 
I think that's just in the earlier prototypes.  What you have is probably
like this:
<http://www.applefritter.com/prototypes/tvbox/box1/flash.jpg>
Later prototypes used a Mask ROM:
<http://www.applefritter.com/prototypes/tvbox/box2/flash.jpg>
 By Apple set top box, do you mean the Mac that was
black, and had a TV?  Or
do you mean that device that was never released, is Apple branded, and
plugged into a TV?  Or another machine all together?  Can you elaborate? 
He means 'a never-released device that plugged into a TV', also known as
the "Interactive Television Box".  It's based on the LC 475.  Info at
<http://www.applefritter.com/prototypes/tvbox/>.
I'd be very curious if anybody's managed to get one of these to boot.
Tom
Applefritter
www.applefritter.com