30 August 2019, 14:05 | #1 |
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Amiga 600 doesn't like expansions?
Hi there, I recently came across another A600 that behaves very strangely!!! when its just the Amiga with no Chip ram or Fast ram expansions games will run fine from floppy disk for hours... perfect RGB output, perfect sound output and no fishy smell from the motherboard like my other A600 with cap failure so what gives? Why wont this perfectly healthy looking A600 work with my various expansions? and yes they are know working on the other fishy smelling 600 so its not the expansions... any ideas? (also not PSU as tried with standard, heavy and meanwell)
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30 August 2019, 14:11 | #2 |
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What kind of expansions?
If it is chip RAM expansions, then it is likely a dirty expansion connector - clean it off with a soft pencil eraser and some isopropanol. And if that connector is oxidized, chances are the CPU pins are as well so it will be hard to make clip on expansions connect, but they can be tricky even on clean A600s. |
30 August 2019, 14:53 | #3 |
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the chipram is the individual a604 - the one that my indivison ECS connects to... the Fast ram is one of the Kipper based ones. I already tried cleaning the CPU legs with a wire brush, havnt tried cleaning the edge connecter yet so will have a go.
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30 August 2019, 15:48 | #4 |
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Power supply, maybe?
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30 August 2019, 15:56 | #5 |
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30 August 2019, 16:49 | #6 |
ex. demoscener "Bigmama"
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watch out when using a wire brush for that sort of thing - if a strand breaks off, it can get trapped where you don't notice it and short things..
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30 August 2019, 17:06 | #7 |
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30 August 2019, 18:15 | #8 |
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What revision motherboard is it?
Only reason I ask is because I had to modify my A604n otherwise it just displayed a black screen and wouldnt boot. Mine is an early A300 rev 1 board so I had to do the modification mentioned in this thread. http://eab.abime.net/showthread.php?t=82759 Last edited by Superman; 30 August 2019 at 18:20. |
30 August 2019, 18:36 | #9 | |
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Quote:
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31 August 2019, 12:50 | #10 |
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ok so I removed the Cap from the A604 as the instructions said and great sucsess!!! just need to dig out my fast ram expansion as I seem to have missed placed it but I have a feeling once i clean the CPU pins thats gonna be good too so thank you guys for all the help
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01 September 2019, 14:08 | #11 |
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