Atari 65XE 320k RAM Upgrade

I’m trying to upgrade my Atari 65XE to 320k RAM (and also replace the electrolytic capacitors in the process). Forum post with instructions and files for the 320k mod: https://www.exxoshost.co.uk/forum/viewtopic.php?t=160#p707 The Retro Channel 320k Upgrade video: https://youtu.be/Ah4gezAUWwU The Byte Attic website: https://www.thebyteattic.com Lotharek Ultimate 1MB RAM upgrade: https://lotharek.pl/productdetail.php?id=56 Draco SysInfo: http://drac030.krap.pl/en-si-pliki.php Extended RAM test: https://atari.fox-1.nl/atari-400-800-xl-xe/400-800-xl-xe-tools/extended-ram-test-0-21-0/ TL866 EPROM programmer*: US: https://amzn.to/3tyvK3b UK: https://amzn.to/3IXETsE DE: https://amzn.to/3twUU22 Capacitor list: 1x 470uF 16v 4x 22uF 16v axial 3x 4.7uF 35v non-polarized 2x 10uF 16v 1x 10uF 16v axial 1x 22uF 16v TIME STAMPS: 0:00 Introduction 0:55 Opening the Case 1:46 Replacing Electrolytic Capacitors 7:09 RAM Upgrade Overview 13:06 Freeing Pads, Placing Sockets 20:29 Programming the GAL 22:42 Wiring Things up 33:36 Initial Test Run 36:52 Adding a Switch 41:04 More Testing 44:22 Failed RAM Theory 47:56 Thank you & Good night ----------------------------------------­------ MUSIC by FOCUS 10 https://focus10music.bandcamp.com EQUIPMENT AND TOOLS I USE: https://kit.co/janbeta * MERCHANDISE: https://janbeta.creator-spring.com TWITTER: https://twitter.com/thejanbeta PATREON: https://patreon.com/janbeta KO-FI: https://ko-fi.com/janbeta WEBSITE: https://www.janbeta.net TWITCH: https://www.twitch.tv/thejanbeta YT CHANNEL MEMBERSHIP: https://www.youtube.com/channel/UCftUpOO4h9EgH0eDOZtjzcA/join Thanks for watching! * Stuff marked with "*" contains affiliate links. You don't pay anything extra and I get a little commission from everything you buy through the links (even if you buy something different there). #JanBeta #Atari65XE #Atari8bit