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Asus F2A55 F2A55 User's Manual - Page 37

Internal connectors

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CHA FAN PWM CHA FAN IN CHA FAN PWR GND CPU FAN PWM CPU FAN IN CPU FAN PWR GND CHA FAN PWM CHA FAN IN CHA FAN PWR GND 1.8.2 Internal connectors 1. CPU and chassis fan connectors (4-pin CPU_FAN, and 4-pin CHA_FAN1/2) Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector. CHA_FAN2 CPU_FAN CHA_FAN1 F2A55 F2A55 Fan connectors DO NOT forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! DO NOT place jumper caps on the fan connectors. • The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power. • Only the 4-pin CPU fan and 4-pin chassis fan support the ASUS Fan Xpert+ feature. • If you install two VGA cards, we recommend that you plug the rear chassis fan cable to the motherboard connector labeled CHA_FAN1/2 for better thermal environment. ASUS F2A55 1-25

Section	Page
Safety information	6
About this guide	7
F2A55 specifications summary	9
Package contents	12
Chapter 1: Product introduction	13
1.1 Special features	13
1.1.1 Product highlights	13
1.1.2 ASUS DIGI+ VRM	13
1.1.3 ASUS Exclusive Features	14
1.2 Before you proceed	16
1.3 Motherboard overview	17
1.3.1 Placement direction	17
1.3.2 Screw holes	17
1.3.3 Motherboard layout	18
1.3.4 Layout contents	19
1.4 Accelerated Processing Unit (APU)	19
1.4.1 APU installation	20
1.4.2 APU heatsink and fan assembly installation	21
1.5 System memory	23
1.5.1 Overview	23
1.5.2 Memory configurations	24
1.5.3 Installing a DIMM	31
1.6 Expansion slots	32
1.6.1 Installing an expansion card	32
1.6.2 Configuring an expansion card	32
1.6.3 PCI slots	32
1.6.4 PCI Express x1 slots	32
1.6.5 PCI Express x16 slots	32
1.7 Jumpers	34
1.8 Connectors	35
1.8.1 Rear panel ports	35
1.8.2 Internal connectors	37
1.9 Onboard switch	43
1.10 Onboard LEDs	44
1.11 Software support	45
1.11.1 Installing an operating system	45
1.11.2 Support DVD information	45
Chapter 2: BIOS information	47
2.1 Managing and updating your BIOS	47
2.1.1 ASUS Update utility	47
2.1.2 ASUS EZ Flash 2	48
2.1.3 ASUS CrashFree BIOS 3 utility	49
2.1.4 ASUS BIOS Updater	50
2.2 BIOS setup program	52
2.3 Main menu	56
2.3.1 System Language [English]	56
2.3.2 System Date [Day xx/xx/xxxx]	56
2.3.3 System Time [xx:xx:xx]	56
2.3.4 Security	56
2.4 Ai Tweaker menu	58
2.4.1 Ai Overclock Tuner [Auto]	59
2.4.2 Memory Frequency [Auto]	59
2.4.3 APU Multiplier [Auto]	59
2.4.4 NB Frequency [Auto]	59
2.4.5 EPU Power Saving Mode [Disabled]	59
2.4.6 OC Tuner	60
2.4.7 DRAM Timing Control	60
2.4.8 CPU Voltage [Offset Mode]	60
2.4.9 DRAM Voltage [Auto]	60
2.4.10 SB 1.1V Voltage [Auto]	60
2.4.11 1.1VSB Voltage [Auto]	60
2.4.12 APU1.2V Voltage [Auto]	61
2.4.13 VDDA Voltage [Auto]	61
2.4.14 DIGI+ VRM	61
2.5 Advanced menu	63
2.5.1 CPU Configuration	63
2.5.2 SATA Configuration	64
2.5.3 USB Configuration	65
2.5.4 NB Configuration	65
2.5.5 Onboard Devices Configuration	65
2.5.6 APM	66
2.5.7 Network Stack	67
2.6 Monitor menu	68
2.6.1 CPU Temperature / MB Temperature [xxxºC/xxxºF]	69
2.6.2 CPU_FAN / CHA_FAN Speed [xxxx RPM] or [Ignore] / [N/A]	69
2.6.3 CPU_FAN Q-Fan Control [Enabled]	69
2.6.4 CHA_FAN1/2 Q-Fan Control [Disabled]	70
2.6.5 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage	70
2.6.6 Anti Surge Support [Enabled]	70
2.7 Boot menu	71
2.7.1 Bootup NumLock State [On]	71
2.7.2 Full Screen Logo [Enabled]	71
2.7.3 Fast Boot [Enabled]	72
2.7.4 Post Delay Time [3 sec]	72
2.7.5 Wait for ‘F1’ If Error [Enabled]	72
2.7.6 Option ROM Messages [Force BIOS]	73
2.7.7 Next boot after AC Power Loss [Normal Boot]	73
2.7.8 CSM Parameters	73
2.7.9 Security Boot parameters	73
2.7.10 Setup Mode [EZ Mode]	75
2.7.11 Boot Option Priorities	75
2.7.12 Boot Override	75
2.8 Tools menu	76
2.8.1 ASUS EZ Flash 2 Utility	76
2.8.2 ASUS SPD Information	76
2.8.3 ASUS O.C. Profile	76
2.9 Exit menu	77
Appendices	79
Notices	79