johnston@oscar.ccm.udel.edu (11/11/90)
Memory upgrades for the no-longer-supported Sanyo MBC555 not-very-compatibles involve a system patch in addition to some chip piggy-backing. If anyone out there is still using such a system, I would greatly appreciate some how-to information. Some background for Sanyo gurus: this system includes the so-called Lotus-board video ram upgrade as well as a serial board from Rocky Mountain micro. The system currently has 256k of ram, and I have enough of the appropriate 150ns 64kbit DRAMs for the upgrade. Please reply by e-mail to Bill (johnston@oscar.ccm.udel.edu). I will post a summary if appropriate. Sanyo users motto: what doesn't kill us only makes us stronger ...