GUBBINS@RADC-TOPS20.ARPA (Gern) (02/19/86)
I have a friend with a TRS-80 Model 4 64K unit and he would like to avoid spending $77.00 to upgrade to 128K. He put 64Kx1 DRAMS in the empty sockets, but it didn't work. What else must be done (move jumpers?, etc.?)? Radio Shack is not being kind enough to make the required knowledge known. Any info will be appreciated. Thanx, Gern -------