Gigabyte GA-X79-UP4, Руководство пользователя

Страница: 24 / 100

- 24 - Hardware Installation
•
Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheat-
ing may result in damage to the CPU or the system may hang.
• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers.
3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3/SYS_FAN4 (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN), two 4-pin (SYS_FAN1/SYS_FAN2) and two
3-pin (SYS_FAN3/SYS_FAN4) system fan headers. 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 speed control function requires the use of a 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 GND
2 +12V /Speed Control
3 Sense
4 Speed Control
SYS_FAN1:
Pin No. Definition
1 GND
2 +12V /Speed Control
3 Sense
4 Reserve
CPU_FAN
SYS_FAN2
DEBUG
PORT
G.QBOFM
1
SYS_FAN1
DEBUG
PORT
G.QBOFM
1
SYS_FAN2:
Pin No. Definition
1 GND
2 +12V
3 Sense
4 Speed Control
SYS_FAN3/SYS_FAN4:
Pin No. Definition
1 GND
2 +12V
3 Sense
DEBUG
PORT
G.QBOFM
1
SYS_FAN3/SYS_FAN4
1
5) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and reset the
CMOS values to factory defaults. To clear the CMOS values, use a metal object like a screwdriver to touch
the two pins for a few seconds.
• Always turn off your computer and unplug the power cord from the power outlet before clearing the CMOS values.
•
After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually
configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS configurations).
Open: Normal
Short: Clear CMOS Values