A while back I was given a Macintosh IIsi with a few issues. Not only was there Uneven Yellowing on the case, but upon powering the machine up, it would show a Solid Colored Screen and would not load the Operating System. This was probably due to Leaking Capacitors (Which I cleaned and Removed when I recieved the Computer).

I started by cleaning the case and then Retr0brighting it. I made the recipe that JDW made and applied it to the yellowed areas. Even though this was my first time using it, I think that it turned out quite well.

With the Case taken care of, I decided to clean the Motherboard (Again). This time I cleaned in a specific area; Under the Hard Drive Ribbon where Capacitor Damage appeared to be greatest.

I then connected my Peripherals and crossed my fingers.

When I turned it on, I was thrilled to see the machine loading the OS and Desktop. It works*!

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*: Even though the Mac IIsi Loads the OS and is now usable, I am still having a few issues. Upon Startup, I still get Colors but the Machine is able to push through and Boot Up. The Machine also freezes from time to time. What ways can these problems be fixed? I would imagine that I need to clean the MoBo some more but I think that a chip under the HD Ribbon Cable is Damaged (The Connectors have turned a greenish color from the Leaky Capacitors) Should I reclean, replace or create a better connection with wires?

Thanks

PS: I will try to upload some pictures later.