Jan Beta | Atari 65XE 320k RAM Expansion Troubleshooting @JanBeta | Uploaded April 2022 | Updated October 2024, 1 hour ago.
I'm troubleshooting the 320k RAM expansion I put in my Atari 65XE in one of the previous videos. It's quite the journey.

My previous RAM expansion video (installing the mod):
youtu.be/GtpmzixF97c

The Retro Channel (successfully) installing the RAM expansion:
youtu.be/Ah4gezAUWwU

Extended RAM test download:
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: amzn.to/3tyvK3b
UK: amzn.to/3IXETsE
DE: amzn.to/3twUU22

TIME STAMPS:
0:00 Introduction
1:37 Possible Problems
5:17 Testing the Logic IC
6:34 Reprogramming another GAL
8:22 Trying another Logic IC
9:21 Double Checking the Wiring
12:07 Trying the new GAL
14:05 Trying different RAM
15:37 RAM Expansion switched off
15:57 Scoping the Signals
18:09 Jürgen's Ideas
20:05 Known-good Chips
23:13 Replacing original 4164 RAM
26:02 Replacing Sally CPU
28:32 Replacing the GTIA
29:52 Trying some Software
35:31 Potential remaining Problems
36:34 Thank you & Good night

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#JanBeta #Atari #RAMExpansion #Atari8bit