MSI G52-MA00628 - Manual (Page 28)

Hardware Setup
2-13
The mainboard provides connectors to connect to FDD, IDE HDD, case,
modem, LAN, USB Ports, IR module and CPU/System FAN.
Floppy Disk Drive Connector: FDD1
The mainboard provides a standard floppy disk drive connector that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types.
Connectors
Chassis Intrusion Switch Connector: J8
This connector is connected to 2-pin connector chassis switch. If the
Chassis is open, the switch will be short. The system will record this status. To
clear the warning, you must enter the BIOS setting and clear the status.
J8