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Atari 520 ST+ (C070243 rev.C) Memory upgrade

19 January 201918 June 2019 TSB

Today I upgraded an Atari 520 ST+ for a friend of mine with Exxos 4MB RAM.

First had to remove all the old DRAM’s.

 

After that I placed the RAM upgrade.
I didn’t make any pictures of the assembling of the riser board, see links below..

More information:

http://www.exxoshost.co.uk/atari/last/4MBMMU/index.htm
http://www.spiny.org/atari/photos/exxos_4meg_stm/

 

 

 

 

atari Atari 520 ST+

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E-Matrix 1230-50 / dead
Don’t use THT caps on SMD pads!!

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