A500 & rom 2.05

[Cass]

I have a spare 2.05 ROM after upgrading my A600 to 3.1 , so during the x-mass vacations I thought that it would be cool to upgrade my 1.3 A500+, left at home.

What I did was to replace the 1.3 with the 2.05 but the computer wouldn't start (like there was no ROM to it). A friend of mine said that it might be a software problem : the 2.05 ROM checks for the IDE that isn't present on the A500, so it won't boot.

Anybody there that has tried this kind of upgrade? I hope that my 2.05 ROM is still alive after this experiment (I haven't test it yet back to the A600)!

P.S. The A500+ had the 2.04 originally, but since then I've chainged lots of ROM couples (1.3/2.04), and now I'm left with an old 1.3 only.
________
Maine marijuana dispensaries

[Cass]

It's a revision 8, and the ROM socket has an extra pair of pins that should be skiped (the top ones, I've learned it the hard way: that's why I had to change many pair of roms).
________
Ford Granada (North America) Picture

[Cass]

As a matter of fact the A500+ came with a 512KB ROM (2.04), and the 1.3 just replaced it with no further modifications/troubles.

The point is that the next version (2.05 from the A600) seems not to be alive on the same motherboard that hosted long ago a 2.04
________
Opium rehab forums

[Cass]

I just tried the 2.05 back to the A600 and works fine (thankfully is still alive!).

-The A500+ has a 68010 as a CPU, a 1.3 ROM, 1.5MB chip and the rest is left as a stock A500+.

-The A600 has a 68030@40 & 68882, 16MB fast, 2MB chip, and 3.1 ROM

I think it has to do with the special reallocation tables that missing (used by softkickers), after doing a plain substitution of the chip to another motherboard.
________
Brunette Fucking