I am declaring interest. Are they easy to fit? I can solder, but generally it is following instructions.
Hi,
Opening the PSU can be the hardest part (differs from PSU to PSU). Replacing the board is pretty straightforward; desolder the four cables/wires (note position of the colored cables) and (desolder and) cut the pins to the stock voltage regulator cast into the resin. Then solder the wires/cables to the new board and check output voltage and polarity. Done!