I've been a user of Stabilant-22 for over a quarter-century now, and in my experience it is simply the best electrical contact treatment in existence.
I used to work in a radio communications shop serving most of the public safety agencies in the county. Law enforcement vehicles had MDT's (mobile data terminals) which consisted of a CRT and keyboard up front, and the radio transceiver and logic units in the trunk. It was very common for a unit not to boot, and the customary "fix" was to take out the logic unit, remove and re-seat all connectors and socketed IC's. Nearly every unit in the field would come in periodically for this.
On my own, I started treating the IC and connector pins and their sockets with Stabilant before re-inserting the parts. One good treatment like that, and I would never see that unit in the shop again. It took some time to convince my skeptical supervisor, but eventually the dramatic drop in the number of service calls made him a believer.
At the time his parents lived in an old house with "screw-in" type electrical fuses. They were always suffering blown fuses because the old sockets would develop resistance and heat up enough to blow the fuse. A nuisance, and a potential fire hazard to boot. He took the Stabilant over to their house and treated all the sockets and fuses. Months later he admitted that since that day, his parents had yet to experience a single blown fuse.
I've had more computer hardware problems than you can shake a stick at and Stabilant has come to the rescue over and over again. It's very good at making marginal RAM cards work properly. I use it on RAM cards, expansion cards, wire connectors, etc. - anything that carries electric current. It recently saved a computer for me. It also revived an old rechargeable battery powered Logitech mouse that wouldn't charge in its cradle anymore. I took the cradle apart, applied Stabilant to every connection I could find and voila! It works again!