Gigabyte GA-880GMA-UD2H (rev.2.) [25/112] 25 hardware installation

Gigabyte GA-880GMA-UD2H (rev.2.1) [25/112] 25 hardware installation
- 25 - Hardware Installation
3/4) CPU_FAN/SYS_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 4-pin (SYS_FAN) system fan header.
Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect
it in the correct orientation (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. Denition
1 GND
2 +12V / Speed Control
3 Sense
4 Speed Control
SYS_FAN:
Pin No. Denition
1 GND
2 +12V / Speed Control
3 Sense
4 Reserve
CPU_FAN
SYS_FAN
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
1
1
5) FDD (Floppy Disk Drive Connector)
This connector is used to connect a oppy disk drive. The types of oppy disk drives supported are:
360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a oppy disk drive, be sure to locate
pin 1 of the connector and the oppy disk drive cable. The pin 1 of the cable is typically designated by a
stripe of different color. For purchasing the optional oppy disk drive cable, please contact the local dealer.
Be sure to connect fan cables to the fan headers to prevent your CPU and system from over-
heating. Overheating may result in damage to the CPU or the system may hang.
These fan headers are not conguration jumper blocks. Do not place a jumper cap on the
headers.
2
34
1
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