IBM 610 workstation computer 3408

I do what I can not to get them wet.

They are mounted on the rear wall of the electrics panel; probably the dryest place on the boat. They are in enclosures that does not need fans, and these are sealed with sikaflex where they can be sealed.

When you live in a sailboat you will get the gist of fixing even the minutest leaks. Sikaflex is your friend in this endeavour, even if it is environmentally not the friendliest of compunds.

Computers are DC driven, properly earthed to a negative busbar that connects everything on the boat, and this is properly protected by active and pbuttive anodes.

I use 6mm wire to establish this busbar.

This is their fourth season, and I only see superficial corrosion. Total sailed distance around 9000 nm, around 6 months actively at sea.

First advise :

If they are powered by an AC generator they will rust in a matter of weeks. When you deal with electronics in a hostile environment you must unthink the idea of AC.

Second advise :

Keep them dry.

Third advise :

Completely exorcise all creep-currents. Boats have oodles of them, where different metals meet salt water. Have everything, including the stove, kitchen sink and the keel on a single negative bus; and then add anodes that push potential relative to this bus. Thereby the anodes will protect it all.

-- mrr