Gigabyte GA-785GMT-USB3 Manual - Page 25
CPU_FAN/SYS_FAN Fan Headers, FDD Floppy Disk Drive Connector
View all Gigabyte GA-785GMT-USB3 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 25 highlights
3/4) CPU_FAN/SYS_FAN (Fan Headers) The motherboard has a 4-pin CPU fan header (CPU_FAN)and a 4-pin system fan header(SYS_FAN). Each fan header supplies a +12V power voltage and possesses a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation. Most fans are designed with colorcoded power connector wires. A red power connector wire indicates a positive connection and requires a +12V voltage. The black connector wire is the ground wire. The motherboard supports CPU fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. CPU_FAN: Pin No. Definition 1 CPU_FAN 1 GND 2 +12V / Speed Control 3 Sense 4 Speed Control 1 SYS_FAN SYS_FAN: Pin No. 1 2 3 4 Definition GND +12V / Speed Control Sense Reserve • Be sure to connect fan cables to the fan headers to prevent your CPU, North Bridge and system from overheating. Overheating may result in damage to the CPU/North Bridge or the system may hang. • These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. 5) FDD (Floppy Disk Drive Connector) This connector is used to connect a floppy disk drive. The types of floppy disk drives supported are: 360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a floppy disk drive, be sure to locate pin 1 of the connector and the floppy disk drive cable. The pin 1 of the cable is typically designated by a stripe of different color. For purchasing the optional floppy disk drive cable, please contact the local dealer. 34 33 2 1 - 25 - Hardware Installation