Asus A55-C Specifications download pdf (Page 43)

ASUS F1A55 R2.0

1-31

2. DRAM LED

The DRAM LED checks the DRAM in sequence during the motherboard boot process.

If an error is found, the LED next to the error device will light up until the problem is

solved. This user-friendly design provides an intuitive way to locate the root problem

quickly.

1.10 Onboard LEDs

1. Standby Power LED

The motherboard comes with a standby power LED that lights up to indicate that the

system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should

shut down the system and unplug the power cable before removing or plugging in any

motherboard component. The illustration below shows the location of the onboard LED.

SB_PWR

Standby Power Powered Off

OFF

F1A55 R2.0

F1A55 R2.0 Onboard LED

F1A55 R2.0

F1A55 R2.0 DRAM LED

DRAM LED

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 75 76

Motherboard 1
First Edition 2
July 2012 2
Contents 3
BIOS information 2-1 4
Appendices 5
Safety information 6
About this guide 7
Typography 8
(continued on the next page) 10
Package contents 12
Product introduction 13
ASUS UEFI BIOS (EZ Mode) 14
ASUS Anti-Surge Protection 14
AI Suite II 14
C.P.R. (CPU Parameter Recall) 16
ErP ready 16
1.2 Before you proceed 17
1.3 Motherboard overview 17
1.3.2 Screw holes 18
1.3.3 Motherboard layout 19
1.3.4 Layout contents 20
1.4.1 Installing the CPU 21
Gold triangle 22
Small triangle 22
CPU Heatsink 23
Retention bracket 23
Retention bracket lock 23
Retention Module Base 23
1.5 System memory 25
DDR3 1600 MHz capability 27
DDR3 1866 MHz capability 27
DDR3 1333 MHz capability 28
DDR3 1066 MHz capability 29
1.5.3 Installing a DIMM 30
1.5.4 Removing a DIMM 30
1.6 Expansion slots 31
1.6.5 PCI Express x16 slots 32
1.7 Jumpers 33
1.8.1 Rear panel connectors 34
Rotation 36
F1A55 R2.0 37
SATA3G_1 SATA3G_2 38
SATA3G_3 SATA3G_4 38
SATA3G_5 SATA3G_6 38
SPDIF_OUT 39
PLED SPEAKER 40
IDE_LED PWRSW RESET 40
F1A55 R2.0 USB2.0 connectors 41
1.9 Onboard switch 42
1.10 Onboard LEDs 43
1.11 Software support 44
BIOS information 45
2.1.2 ASUS EZ Flash 2 46
Recovering the BIOS 47
2.1.4 ASUS BIOS Updater 48
Updating the BIOS le 49
2.2 BIOS setup program 50
BIOS menu screen 51
Advanced Mode 52
Menu bar 52
2.3 Main menu 54
Administrator Password 55
User Password 55
2.4 Ai Tweaker menu 56
2.4.3 APU Multiplier [Auto] 57
2.4.5 OC Tuner [OK] 58
2.4.6 DRAM Timing Control 58
2.4.7 Hybrid DIGI + VRM 58
CPU Offset Voltage [Auto] 59
VDDNB Offset Voltage [Auto] 59
2.5 Advanced menu 60
2.5.1 CPU Conguration 61
2.5.2 SATA Conguration 61
2.5.3 USB Conguration 62
2.5.4 NB Conguration 63
2.5.6 APM 64
2.5.7 Network Stack 65
2.6 Monitor menu 66
CPU Fan Prole [Standard] 67
Chassis Fan Prole [Standard] 68
2.7 Boot menu 69
2.8 Tools menu 71
2.9 Exit menu 72
ASUS contact information 75
DECLARATION OF CONFORMITY 76

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Asus A55-C Specifications Page 43

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