Another idea......when we have a box go flaky, about 80% of them can be revived by taking the cover off and blowing the dust out of the thing....especially on the circuit cards. It is amazing how much dust collects inside a computer especially if it sits on the floor. Just remember to not over rev the fan with your air gun.

I just tossed a dozen or so Dell computers that were of the 2000 era....and a similar number of old 20" tube monitors. Took them to the church rummage sale and none sold for $20. The county recycle place refused to take them because "if you have more than one computer, you are a commercial enterprise"....dumb ass recycler.

mike in tucson