Don’t do what I did to try to silence a noisy fan. If you did try to follow advice seen elsewhere to remove the fan blade hub to clean the spindle, you can get a replacement fan from Aliexpress GB0506PGV1-A 13.V1.B1828.F.GN. The funny part, was I had no idea I had trashed the fan and was marveling at how quiet the computer was post-repair…until it shut down from over-heating. Yeah, seems I sheared off the microscopic leads from the board to the windings. Lesson learned. BTW, this machine makes a great Linux Mint 19.3 machine. I can’t wait to get the replacement fan.
Anybody here know how that ribbon cable works? I have read about apple laptops and wireless keyboards having the same fault as mine where keys 1 to 9 and the function keys above them and either the left or right shift stop working. I have reseated the ribbon cable several times, but i am wondering if there is one connection which could go bad to account for this fault.