jc@joker.mil.ufl.edu (Jim Castleberry) (12/05/90)
I recently got a copy of a Tandy 6000 hardware mod to boost it up to 12 MHz (thanks nanook). (It has since appeared on the 6000 archive at plains.nodak.edu, if anyone wants it). Unfortunately, I can't get it to work. I made the mod in such a way that I can back it off by putting the old parts back in their sockets and moving two jumpers. Everything's still rosy at 8 MHz with the old parts, but it dies a horrible death with the new parts at either 8 or 12 (not right away at 8, but it dies all the same). I tried replacing the new parts with different ones to no avail. I have a genuine 68000L12 and 1 meg of 100ns RAM on a stock Tandy board, so they should be okay. Anyone have this mod working? Anyone know what's wrong? Anyone know where the mod originated so I can talk to the author? Thanks, Jim
nanook@rwing.UUCP (Robert Dinse) (12/08/90)
In article <1990Dec5.063423.23164@eng.ufl.edu>, jc@joker.mil.ufl.edu (Jim Castleberry) writes: > I recently got a copy of a Tandy 6000 hardware mod to boost it up to 12 MHz > (thanks nanook). (It has since appeared on the 6000 archive at > plains.nodak.edu, if anyone wants it). > > Unfortunately, I can't get it to work. I trust you got the complete text of the article, including the suggestion that you try this on a spare CPU board, and not use it on something that is important. For what it's worth I was unable to get it to work as well, even using 80ns RAM and changing the delay of used on the memory board. The text of the article made it sound like it would work on some not on others. Since I have gotten the MMU upgrade and a 4-meg card I gave up on this mod as it would be too difficult to replace the RAM on the 4-meg card (all soldered).