it took me a month to figure it out. always had a rolling picture no matter what. one day i switched some wires, and... had a perfect 640x480 24-bit picture - i had the horizontal and vertical syncs reversed.
MCGA is VGA minus the high-res video modes and half or 3/4 the memory yea i saw that - the "International Business Macintosh" - pretty cool stuff =) Gregg Eshelman wrote: > --- On Mon, 8/24/09, Wolf <[email protected]> wrote: > > >> i picked up an old IBM PS/2 25 a couple of >> years ago (IBM's all-in-one to compete with the Mac >> Plus) lady said here want a monitor for $5 i said nah, then >> i saw the floppy drives and said yeah! i almost made the >> mistake of telling her it was actually a whole computer >> >> i ended up gutting it though and hacking on a Mac VGA cable >> to use with an old 68k Performa >> > > Someone hacked a Mac mainboard into a PS/2 model 25, one with a color CRT. > Most of the Model 25's were 8086 CPU with greyscale MCGA graphics, color MCGA > was optional. http://en.wikipedia.org/wiki/IBM_Personal_System/2 > > Curiously, the Model 25 board was almost exactly the same width as the Mac's > board, so very little chassis modding was required. > > The most complex part was adapting the power and video connections to work > with the Mac board. > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
