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-   -   Kickstart 3.1 (40.63) into A500+ (http://eab.abime.net/showthread.php?t=67608)

Mogsy 29 January 2013 23:04

Kickstart 3.1 (40.63) into A500+
 
In the pursuit of upgrading my A500+, I have now fitted a 3.1 ROM and have come across a strange problem.

The Amiga errors when turned on with no expansion connected to the side. But when I fit my A530, it boots fine.

Has anyone else experienced this? Or is it normal?

TheCorfiot 02 February 2013 00:01

You need to fit 4k7 SIL resistor packs into positions RP106 & RP107...
this also applies to std A500's...

TC :)

AmmoJammo 02 February 2013 02:38

Quote:

Originally Posted by TheCorfiot (Post 865403)
You need to fit 4k7 SIL resistor packs into positions RP106 & RP107...
this also applies to std A500's...

TC :)

since when?
I put 3.1 roms into my REV6a motherboard without issues?

I know the older motherboards need a jumper added to the chip though.

Mogsy 02 February 2013 08:37

Thanks for your replies.

I should have mentioned that the motherboard is a rev 8a.1.

I wasn't aware that any modifications were required for this upgrade on this board.

alexh 02 February 2013 10:28

Some EEPROMs don't work without the resistor packs fitted on Rev 8 motherboards. Fitting the A530 does effectively the same thing.

http://eab.abime.net/showpost.php?p=...&postcount=322

AmmoJammo 02 February 2013 11:30

Thanks for clearing that up, ya learn something new every day ;)

k4lmp 02 February 2013 19:49

I have an A500+ with 3.1 roms, with I think (can't rem) the same version MB that you have. I know it says 'Rock Lobster'. I don't have any resistors or jumpers on mine. It works fine with the 3.1 KS. I am not sure, though, as to what the others said, so it is possible some may need the resistor and I just got lucky and received a MB that doesn't.


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