68kMLA Classic Interface
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| Click here to select a new forum. | | Rev-A ROM SIMM - Corrosion on leads | Posted by: olePigeon on 2017-05-19 10:11:20
Just thought I'd give a heads up for anyone with a Rev-A ROM SIMM, the original 2MB red one with the cool red-LED Jolly Roger on it.
Might just be where I live (I'm in California) but the leads on my original red ROM SIMM had corroded. I thought maybe it was from wear and tare, but my unused one showed the same symptoms.
I was having issues with my IIci getting death chimes more and more frequently until it refused to boot. Removing my ROM SIMM fixed it.
I looked at the SIMM and the leads were pitted, with a little bit of black corrosion.
When I put it in my programmer to back up my custom made ROM, it kept copying it in a corrupted manner (though the ROM would check out fine with the diagnostic.)
Long story short, I retinned the leads on the SIMM and it works now. Fortunately DougG3 still had a copy of my custom ROM and I was able to copy it back over.
Anyway, might be something to look out for on the older SIMM.
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