#Mondo8Bit doesn't trust MT4264-15 memory chips, and that's exactly what I've got in this #Atari130XE.

I'm in here to fix the jammed power switch, which #Mondo8Bit zips through in this video (the audio levels are all over the shop - have your finger on the volume control): https://www.youtube.com/watch?v=fXLC7QLT_LU

The board looks very clean otherwise, to my very untrained eye. No bulging caps, no broken solder joints. Does anyone know what problem those bodge wires are intended to solve?

I'll do the #FlashJazzCat technique of spraying the chips with 99% alcohol when the machine's powered up, to see which chips are running hot:

https://www.youtube.com/watch?v=zv251DnCNnc&t=26