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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: masteries on May 23, 2018, 12:39:21 PM

Title: New manufactured Amiga 500 and 500+ chip RAM expansion
Post by: masteries on May 23, 2018, 12:39:21 PM
Greetings,
 
I am a new member of Amiga.org, but really I am not newer to the Retro computing world...

During these past times I was developing a workaround in order to use  the remaining memory chips from an accelerated Atari ST project. This  project requires a change on installed memory due to memory acceses are  totally upgraded, new memory chips were used.
 
 
Now, these memory chips are used for an Amiga 500 chip RAM expansion, its a 512 KB trapdoor memory expansion.  
 
The results are these:


(https://preview.ibb.co/mDU4o8/ara.jpg)



(https://preview.ibb.co/dRqr1T/SAM_2671.jpg)





and the working results are these:



(https://preview.ibb.co/itaxao/SAM_2667.jpg)





For Amiga 500+

(https://preview.ibb.co/jsOuMT/SAM_2669.jpg)



For Amiga 500

(https://preview.ibb.co/cZX4MT/20180520_20.jpg)





(https://preview.ibb.co/kh9Uo8/20180520_204.jpg)





(https://preview.ibb.co/chS4MT/20180520_2048.jpg)



I manufactured several of these, available at supermarket; these memory modules are hand manufactured at my home in Spain  (http://www.lemonamiga.com/forum/images/smiles/icon_smile.gif)   and tested prior to be sent. These are sent on tracked packages also for international destinations.


The module includes short-circuit protection resistances and enable/disable switch.


Marketplace link:   http://www.amiga.org/forums/showthread.php?t=73578

The original design post (Spanish) is:

https://www.gp32spain.com/foros/showthread.php?160981-Proyecto-La-Memorias-del-Pasado-Amiga-500-500
Title: Re: New manufactured Amiga 500 and 500+ chip RAM expansion
Post by: F1Lupo on May 23, 2018, 04:57:31 PM
welcome aboard :)

nice to see new hardware for a fair price.
btw, you mean fast ram not chip ?
Title: Re: New manufactured Amiga 500 and 500+ chip RAM expansion
Post by: Oldsmobile_Mike on May 23, 2018, 06:32:50 PM
Quote from: klx300r;839612
btw, you mean fast ram not chip ?


Chip in the A500+, fast in a stock A500 (unless it's been appropriately modded to support additional chip in the trapdoor slot - as they should be, IMHO).  ;)
Title: Re: New manufactured Amiga 500 and 500+ chip RAM expansion
Post by: Kronos on May 23, 2018, 09:19:46 PM
Quote from: Oldsmobile_Mike;839615
Chip in the A500+, fast in a stock A500


It's either chip or slow (aka Ranger) mem.

As slow as chip but can't be accessed from the chips.

On the other some games will only work with slow mem available.
Title: Re: New manufactured Amiga 500 and 500+ chip RAM expansion
Post by: midway on May 24, 2018, 06:45:57 AM
Very nice !

Just refurbished my 500, next time will be tweaking that one, maybe with your memory expansion ?
Title: Re: New manufactured Amiga 500 and 500+ chip RAM expansion
Post by: masteries on May 24, 2018, 09:17:47 AM
Quote from: midway;839626
Very nice !

Just refurbished my 500, next time will be tweaking that one, maybe with your memory expansion ?


I hope this!  

You will enjoy from a carefully "hand-crafted" RAM expansion :)