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Definition Pin No. Definition 1 3.3V 13 3.3V 2 3.3V 14 -12V 3 GND 15 GND 4 +5V 16 PS_ON (soft On/Off) 5 GND 17 GND 6 +5V 18 GND 7 GND 19 GND 8 Power Good 20 -5V 9 5VSB (stand by +5V) 21 +5V 10 +12V 22 +5V 11 +12V (Only for 2x12-pin ATX) 23 +5V (Only for 2x12-pin ATX) 12 3.3V (Only for 2x12-pin ATX) 24 GND (Only for 2x12-pin ATX) 24 12 13 1 ATX 3/4) CPU_FAN/SYS_FAN1/SYS_FAN2/SYS_FAN3 (Fan Headers) The motherboard has a 4-pin CPU fan header (CPU_FAN), two 4-pin (SYS_FAN1~SYS_FAN2) and a 3-pin (SYS_FAN3) 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. SYS_FAN1/2: CPU_FAN: Pin No. Definition 1 GND 2 Speed Control 3 Sense 4 Reserve Pin No. Definition 1 GND 2 +12V 3 Sense 4 Speed Control 1 1 SYS_FAN1/2 CPU_FAN 0 3 1 4 2 5 DEBUG PORT DEBUG PORT SYS_FAN3 DEBUG PORT DEBUG PORT Pin No. Definition 1 GND 2 +12V 3 N/A 1 SYS_FAN3 DEBUG PORT DEBUG PORT ••Be sure to connect fan cables to the fan headers to prevent your APU and system from overheating. Overheating may result in damage to the APU or the system may hang. ••These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. 5) CLR_CMOS (Clear CMOS Jumper) Use this jumper to clear the BIOS configuration 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. Open: Normal Short: Clear CMOS Values ••Always turn off your computer 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). 6) SATA2 0/1/2/3/4/5 (SATA 3Gb/s Connectors) The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard. Each SATA connector supports a single SATA device. The AMD A55 Chipset supports RAID 0, RAID 1, RAID 10, and JBOD. Refer to Chapter 3, "Configuring SATA Hard Drive(s)," for instructions on configuring a RAID array. Pin No. Definition 1 GND 2 TXP 3 TXN 4 GND 5 RXN 6 RXP 7 GND SATA2 7 1 1 7 7 1 ••A RAID 0 or RAID 1 configuration requires at least two hard drives. If more than two hard drives are to be used, the total number of hard drives must be an even number. ••A RAID 10 configuration requires four hard drives. 7) BAT (Battery) The battery provides power to keep the values (such as BIOS configurations, date, and time information) in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low level, or the CMOS values may not be accurate or may be lost. You may clear the CMOS values by removing the battery: 1. Turn off your computer and unplug the power cord. 2. Gently remove the battery from the battery holder and wait for one minute. (Or use a metal object like a screwdriver to touch the positive and negative terminals of the battery holder, making them short for 5 seconds.) 3. Replace the battery. 4. Plug in the power cord and restart your computer. ••Always turn off your computer before clearing the CMOS values. ••Replace the battery with an equivalent one. Danger of explosion if the battery is replaced with an incorrect model. ••Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or uncertain about the battery model. ••When installing the battery, note the orientation of the positive side (+) and the negative side (-) of the battery (the positive side should face up). ••Used batteries must be handled in accordance with local environmental regulations. 8) F_PANEL (Front Panel Header) Connect the power switch, reset switch, speaker, chassis intrusion switch/sensor and system status indicator on the chassis to this header according to the pin assignments below. Note the positive and negative pins before connecting the cables. Power Switch Speaker Power LED ••PLED/PWR_LED (Power LED, Yellow/Purple): PLED+ PW+ SPEAK+ SPEAK- System Status LED S0 On S3/S4/S5 Off Connects to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED is off when the system is in S3/S4 sleep state or powered off (S5). PLED- PW- 2 20 19 1 PWR_LED+ PWR_LED- PWR_LED- HD- CI+ RES+ • PW (Power Switch, Red): Connects to the power switch on the chassis front panel. You may configure the way to turn off your system using the power switch (refer to Chapter 2, "BIOS Setup," "Power Management," for more information). • SPEAK (Speaker, Orange): Connects to the speaker on the chassis front panel. The system reports system startup status by issuing a beep code. One single short beep will be heard if no problem is dete...