Re: How best to clean ISA slots and cards.
We used to clean similar connectors by folding a business card (not the glossy type) in half and wetting it with Iso alcohol.
Slide card up and down in slot - NOT along it as it can rip the contacts out.
Vaseline, being a petroleum based product, can affect some plastics, so a proper contact grease is preferable (it used to be available for the RC car market quite easily from hobby shops - not sure if it still is).
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