Cpu Fan Connector: Jfan; Power Saving Switch Connector: Jg1; Floppy Disk Connector: Fdd; Hard Disk Connectors: Hdd1,Hdd2 - MSI Microstar MS5116 Manual

CPU Fan Connector: JFAN

This 4-pin connector connects a power source of +12V to your
CPU's cooling fan. Please refer to Figure 2-6. Check the voltage
range and polarity of your cooling fan before you connect it.
PIN1: +12V
PIN2: GND
Power Saving Switch Connector:
Attach a power saving switch to this connector. When the switch
is pressed, the system goes immediately into standby mode. Press
any key and the system wakes up.
µ §

Floppy Disk Connector: FDD

The system board provides a standard floppy disk connector,FDD.
You can attach a floppy disk cable directly to this connector. See
Figure 1-1 for connector locations.
Hard Disk Connectors:
The system board has a 32-bit Enhanced PCI IDE Controller that
provides two HDD connectors,HDD1 (primary) and HDD2
PIN3: GND
PIN4: +5V
JG1
You should enable the Power Management Mode to use
this function.
HDD1,HDD2