CompuServe Messages

September 14, 1990 One Megabyte Agnus use in Commodore A500 Computers. Commodore Business Machines does not support the One Megabyte addressing feature of the Fat Agnus 8372 IC in A500 computers. Regardless of the version of Fat Agnus, all A500's have been factory jumper set to be functionally identical. 8370 Fat Agnus chips are used on Rev 5 boards with 256 x 1 DRAMs. 8372 Fat Agnus chips are used on Rev 6a boards with 256 x 4 DRAMs. The boards are functionally interchangable. Each will support 512K of chip RAM and 512K of expansion RAM with an A501 installed. Enabling the One Megabyte feature, at the customers' request, will void the warranty. Instructions detailing the implementation of the ONe Megabyte addressing feature have been circulated without Official Approval and Commodore does not assume any liability for damages resulting from this mode of operation in the A500. _________________________________________________________________________ I was asked to post the above statement so that everyone knows Commodore's official stance on the A500/Agnus situation. Dave Commodore Online Relations Commodore Online Relations