CompuServe Thread

#Internal memory

5 messages in this thread
#43325From: Dave Haynie/C128 LandDec 11, 1986 4:40 PM
Is someone really selling a fix for the internal 512K expansion? I hope not for too much! I fixed it with less than $1.00 worth of parts, specifically a 74F10 and 74F08, as I recall (I'm typing on the modified machine now, which has been on and running fine for 1.5 weeks). I should be posting these mods soon, which involve a bit of chopping on your daughter board. Though if you can do the initial 512K add-on without any problem, my fix is no tougher. -Dave
#43370From: Mark J. MoralesDec 11, 1986 8:25 PM
It is being offered in 3 versions as a matter of fact. 5.00 for a etched and drilled board, 12.50 for for the board and parts, and 20.00 for the assembled board. I agree it is a very mercenary thing to do, but most who expanded thier machine are not really 'hardware' types and are stuck between a rock and a hard place for a solution, so PLEASE POST SOON. Mark
#43391From: Brian NiessenDec 11, 1986 9:55 PM
That is cheap no matter how you slice it. Bri
#43414From: Dave Haynie/C128 LandDec 11, 1986 11:09 PM
At least that's not too bad, $5.00 for a PCB might be a slightly nicer thing to do than what I did. I wonder exactly what he's doing, it should probably achieve the same end that my mods do. I've found several ways to do this; I like the way I've done it best of all. Its definately for hardware types, though. I expect to draw the schematics this weekend, probably as an IFF file so, even if you don't have access to Aegis (like me), you can still look at 'em or print 'em out. -Dave
#43843From: E. J. Lippert IIDec 15, 1986 12:24 AM
Dave: Please, fill me in on any problems you have found with the daughter board. We have had some experiences where more than one unit on the EXP port causes lots of GURUs and other maladies. We have traced the problem to that *#%#*?!@*& Board but can't get any further. We do know that if a machine exhibits the problem, R & R of the D/Board fixes it! Call me! Please! Collect! ASAP! E.J. Lippert II C Ltd. Wichita, KS (316) 267-6321