After receiving the board, I got it installed and the screen came up blank. I got ahold of customer service and they sent me a second identical board. Well I ordered the 4.2.7 for the better stepper drivers and both boards I received are 4.2.2. The system certainly runs quieter but the extruder stops randomly causing failed prints and the leveling gcode does not stop when it is supposed to making bed leveling difficult..

Easy to install and worked as soon as power up.

Hooked up the new board and was able to be rid of th TL Smoothers in my SainSmart Ender 3 electronics box, so I had room to run the cabling neatly. I had already change out 2 of my fans with the silent ones, so when I powered up the new board, there was no sound... except from the cooling fan in the power supply. I put my hand over the fan to make sure that it was the sound. I had the motors on all the axis move around and it was about as loud as writing with a ball point. What a great improvement. Next I printed with it. Another big surprise, I just wanted to have a real world print to hear the quiet, but got a great big smile as the print started and worked like it should... No bed leveling, bo bed cleanup (been sitting for two weeks, no extra fresh filament, nothing just dirty old bed and the print came out perfect! I should have ordered this V1.1.5 board when it first came out. Thanks SainSmart and Creality, you have saved my hearing.