casebolt%esdc.span@fedex.msfc.nasa.gov (12/22/89)
I have a friend that has a 2090 controller on his A500 (yes that's right an Amiga 500 via an expansion box.) His system is not auto bootable and he asked me to post a question for him on the net... What is the difference in the 2090 vs the 2090a. BOOT ROMS only?? I told him I thought it was a boot rom only difference... anyone has any other differences and if the difference is the rom set...I one were to replace the roms with a new set from a 2090a would it make the system auto bootable?? As usual any help would be appreciated.... Richard Casebolt 205-544-2966
hammock@mars.jpl.nasa.gov (Randy Hammock) (12/22/89)
In article <6661@nigel.udel.EDU> casebolt%esdc.span@fedex.msfc.nasa.gov writes: > What is the difference in the 2090 vs the 2090a. > BOOT ROMS only?? That is the major difference. There is a slight difference in the driver code the was a fix for screen glitches caused when the disk is accessed while an overscanned screen is in use. >I told him I thought it was a boot rom only difference... anyone has any >other differences and if the difference is the rom set...I one were to replace >the roms with a new set from a 2090a would it make the system auto bootable?? There are some hardware differences between the 2090 and the 2090a. In fact, there was talk at one time of a daughter board being produced for the 2090 to convert into a 2090a (or at least compatable). Another thing that is required for AUTOBOOT is the presence of 1.3 Kickstart ROMs. The system will not AUTOBOOT, even with a 2090a, without the 1.3 (or later) ROMs being installed in the system. AMIGA /// | randy@jato.jpl.nasa.gov Telos - Jet Propulsion Laboratory - NASA /// | hammock@mars.jpl.nasa.gov ** GALILEO launch October 1989 ** \\\/// |-------------------------------------------------------------------- \XX/ | "If I wanted your opinions, I'd have given them to you!" - Mock