You can use external expansion like this one: http://plus4world.powweb.com/hardware/16_To_64 . There are several types of them in the hardware section of Plus/4 World. But this means you can't use your expansion port for anything else (except the 1551 drives which has a pass-through connector). 2013/4/30 Gerrit Heitsch <email@example.com> > On 04/30/2013 09:44 PM, firstname.lastname@example.org wrote: > >> is there any easy way to upgrade a C116 to 64k ? >> >> I found a few document on the web… >> >> To upgrade a C16 to 64k >> >> Looks like awful hack L >> >> With tracks cuts and A lot of spaghetti to rebuild the tracks >> >> I mean upgrading without mutilating the mother board.. >> > > There is no other way than to replace the existing RAM with 41464 DRAMs. > In order to use them properly, you will have to cut 2 traces and make 2 new > connections. > > But you're lucky insofar that it's way easier on the C116 than on the C16. > > Short form: > > - Replace the 2 RAMs with 41464 (64Kx4) DRAM > - Cut trace between pin 14 and Pin 16 of U8 (topside) > - Cut trace between pin 16 and Pin 2 of U7 (underside) > - Make a new connection between CPU Pin 22 and U7 Pin 2 > - Make a new connection between CPU Pin 21 and U8 Pin 14 > > Done... Now you should be greeted with 60671 Bytes free. > > U7 and U8 are the two 74LS257. > > Gerrit > > > > > > Message was sent through the cbm-hackers mailing list > Message was sent through the cbm-hackers mailing listReceived on 2013-05-01 09:00:03
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