Well, it seems that the cleaning has taken care of the fan surging.

Initially I had problems with it booting up but not going to the log in screen. Neither the Logitech keyboard nor the mouse worked. I replaced them last year because the last ones acted up too. Today I moved the receiving units to other USB ports and it it all worked properly. Funny though, I plugged another device into the USB ports the receiving units had been in and the USB port worked. I have had problems with the key stroke delays and skips and only rebooting the computer fixes it. Had the same problem with the previous Logitech keyboard. Goofy. Maybe I need to go wired instead of wireless.