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-   -   For sale: 1 MB ChipRAM trapdoor memory for Amiga 500 Plus (http://eab.abime.net/showthread.php?t=104737)

masteries 20 November 2020 13:36

For sale: 1 MB ChipRAM trapdoor memory for Amiga 500 Plus
 
Greetings,

This board is the adaptation of the previous version in order to carry 1 MB and so the Amiga 500 Plus can get the most out of it.

It has been done using the "Chip Over Chip" technique,



Tested to the extreme, plenty diskette copies have been performed with their consequent verifications using all the space
of RAM of my A500 + with these cards on, they go perfectly. Also, a memory test using Memtest program is passed for each manufactured trapdoor module,

It includes the short-circuit protection resistances and the enable lever http://www.lemonamiga.com/forum/imag...icon_smile.gif


Attention: this model is exclusive to Amiga 500 Plus, the owners of a normal Amiga 500 who are interested
they must acquire a 512 KB model board that is suitable for them and also costs less (I remind you that the 512 KB model costs 21€ compared to 32€ for this).

http://www.amibay.com/attachment.php...d=137412&stc=1

http://www.amibay.com/attachment.php...d=137413&stc=1

http://www.amibay.com/attachment.php...d=137414&stc=1

http://www.amibay.com/attachment.php...d=137415&stc=1

http://www.amibay.com/attachment.php...d=137416&stc=1



Memory tests passed to the trapdoor memories,


Memory Test program:

https://preview.ibb.co/d2Dtsp/Memtest.jpg


Starting the test with a 1 MB trapdoor installed:

https://preview.ibb.co/naLv59/1_MB_Start.jpg


2 MB test:

https://preview.ibb.co/b9nKXp/1MB_End.jpg



1MB trapdoor Board images

https://preview.ibb.co/jR4Wro/1_MB_Installed.jpg

https://preview.ibb.co/hmGY48/1_MB_Board_Side.jpg

https://preview.ibb.co/k01Y48/1_MB_Board_side_2.jpg



Board price is 32€ per unit; spanish national tracked shipmet cost 5€ and international tracked shipment cost 7.25 €

Payment via Paypal,

masteries 07 January 2021 13:49

Up! There are units available!


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