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Amiga computer related discussion => General chat about Amiga topics => Topic started by: sim085 on November 24, 2008, 09:20:57 AM

Title: Can an A500 be 100% converted yto A500+ ?
Post by: sim085 on November 24, 2008, 09:20:57 AM

Hi,

I was wondering if I had (which I dont) an A500 could I convert it to become a 100% A500+?

I know about upgrading the ROM chip, but what about Chip Memory and Battery? Also are there any big differences in the motherboard between the two?

I am asking this just out of curiosity. From the research I did it seems that Commodore wanted to introduce the A500+ as an intermediary step before introducing the A1200 so that software development techniques could be improved. However was there more to this?

Thanks and Regards,
Sim085

Title: Re: Can an A500 be 100% converted yto A500+ ?
Post by: zipper on November 24, 2008, 09:55:41 AM

Yes. You need KS 2.x, 0.5 MB trapdoor expansion (or chip addition onto the mobo on later revisions), Denise 8373, Megachip 2 or equivalent and mobo jumper work, depending on the revision. Just what I've done years ago.

Title: Re: Can an A500 be 100% converted yto A500+ ?
Post by: sim085 on November 24, 2008, 10:06:53 AM

mmm .. that is interesting to know :) What is Megachip 2? and what do you mean by mobo jumper work? Also are there any articles written on this?

Thank you for your answer,
Sim085

Title: Re: Can an A500 be 100% converted yto A500+ ?
Post by: zipper on November 24, 2008, 10:13:41 AM

Here's a description, photo and even instructions for mobo modifications:
http://amiga.resource.cx/exp/megachip

Title: Re: Can an A500 be 100% converted yto A500+ ?
Post by: sim085 on November 24, 2008, 10:22:58 AM

Ok I understand :) Thank you. It is nice to know that an A500 cab be upgraded up to an A500+. My cousin has an A500 (I have the A500+) and maybe he would be interested to upgrade it one day :)

Title: Re: Can an A500 be 100% converted yto A500+ ?
Post by: chiark on November 24, 2008, 11:11:58 AM

I bought a working A500+ motherboard for 5 quid from ebay...

That would be the easiest upgrade!