MSI 990FXA User Guide - Page 19

Chapter 2 SOCKET AM3 MS-7640 Screw Holes When you install the mainboard, you have to place the mainboard into the chassis in the correct direction. The locations of screws holes on the mainboard are shown as below. The side has to toward the rear, the position for the I/O shield of the chassis. Screw holes Refer above picture to install standoffs in the appropriate locations on chassis and then screw through the mainboard screw holes into the standoffs. Important • To prevent damage to the mainboard, any contact between the mainboard circuit and chassis or unnecessary standoffs mounted on the chassis is prohibited. • Please make sure there is no metal components placed on the mainboard or within the chassis that may cause short circuit of the mainboard. 2-3