STEP 4: Take the CPU board and solder the SIL terminals to the tiny board.
This board contains active SMT electronics and is subject to ESD and
overheat, make sure that your soldering iron doesn't exceed 350 °C
(~660°F) and don't keep the soldering pin on the terminals for too long.
The SIL strip must face the bottom of the board, thus the pins will be
soldered on the top side, as shown in the picture below.
STEP 5: Add the CPU board to the main board, as shown in the following
picture. Make sure that the exceeding leads from the resistors and the
LEDS have been cut as shortest as possible.
