Microvision replacement screen project - pre-order & purchase here in Buy, Sell, and Trade Posted September 30 10 hours ago, nickle241 said: i hadnt realized it was the actual cartridge that got the chip change that made for the model swap, how do you tell which ones you have? also, dont these things have a noticeable failure rate, maybe the static discharge issue isnt the only thing plaguing them nowadays and they could be running a bit hot in some cases, just look at what hot running has done to the commodore 64 That's a good thought. I'm not sure how you notice what chip you have externally. If you use hot air gun over the label it covers the screw. Does the commodore 64 have a cooling fan in the case?