After receiving my ultra board, with one Wifi antenna and some assembly components missing, it did not take long to have it assembled and tested and I am really pleased with this little thing, however... It turned out the cpu and board do get rather hot and the manual told me it is the responsibility of the user to prevent overheating so I ordered the CPU fan from UDOO which arrived last week. After mounting the fan, setting up the bios and testing the thermal behaviour I was not impressed. The fan is very noisy with a high pitch and the board stil gets rather hot. It was time for a different approach. In my scrap box I had a couple of intel pentium cooling fans and selected one with a frame that would nicely fit the UDOO X86 board. I wanted the fan to be easy removable so it stands on top of the board, fixed by two pins. I did not have a connector that would fit the original fan connector on the board but I preferred a continuously running fan anyway so selected the sata power connector as my 12VDC power source for the intel fan soldering two tap-off fan wires to the ultra-kit supplied sata power cable. That did not work I found as the sata power plug 12VDC is not wired on the UDOO X86 board. A new yellow wire straight from the power plug to the sata power connector pin 1 solved this. My 'new' fan works great and can easily be taken off.