Acer Aspire X3990 - Page 55

47 Chapter 3
4. Remove the front I/O&USB board.
a. Remove the two screws that secure the I/O&USB board to the bracket.
b. Pull the I/O&USB board out of the bracket.
Note:Circuit boards >10 cm² has been highlighted with the yellow rectangle as above image shows. Please
detach the Circuit boards and follow local regulations for disposal.