Asus A55M-A/USB3 User Manual download pdf (Page 17)

A55M-A/USB3

1.3 Motherboard overview

1.3.1 Placement direction

When installing the motherboard, ensure that you place it into the chassis in the correct

orientation. The edge with external ports goes to the rear part of the chassis as indicated in

the image below.

DO NOT overtighten the screws! Doing so can damage the motherboard.

Place this side towards

the rear of the chassis.

1.3.2 Screw holes

Place six screws into the holes indicated by circles to secure the motherboard to the chassis.

ASUS A55M-A Series

1-5

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 77 78

Motherboard 1
First Edition 2
January 2013 2
Contents 3
BIOS information 4
Appendices 5
Safety information 6
About this guide 7
Typography 8
(continued on the next page) 9
User Guide 11
Product introduction 13
ASUS MyLogo2™ 15
ASUS CrashFree BIOS 3 15
1.2 Before you proceed 16
A55M-A/USB3 17
1.3.3 Motherboard layout 18
1.3.4 Layout contents 19
1.4.1 APU installation 20
ASUS A55M-A Series 21
1.5 System memory 23
1.5.2 Memory congurations 24
DDR3 1600 MHz capability 25
DDR3 1333 MHz capability 26
DDR3 1066 MHz capability 28
1.5.3 Installing a DIMM 29
1.6 Expansion slots 30
A55M-A/USB3 Clear RTC RAM 32
KB_USBPWB 33
1.8.1 Rear panel ports 34
1.8.2 Internal connectors 35
SPDIF_OUT 39
A55M-A/USB3 USB2.0 connectors 40
1.9 Software support 41
2.1.2 ASUS EZ Flash 2 44
Recovering the BIOS 45
2.1.4 ASUS BIOS Updater 46
Updating the BIOS le 47
2.2 BIOS setup program 48
Advanced Mode 50
Menu bar 50
2.3 Main menu 52
Administrator Password 53
User Password 53
2.4 Ai Tweaker menu 54
2.4.3 APU Multiplier [Auto] 55
2.4.4 NB Frequency [Auto] 55
2.4.6 DRAM Timing Control 56
2.4.8 DRAM Voltage [Auto] 56
2.4.9 SB 1.1V Voltage [Auto] 56
2.4.10 DIGI+ VRM 57
2.5 Advanced menu 58
2.5.2 SATA Conguration 60
2.5.3 USB Conguration 61
2.5.4 NB Conguration 61
2-20 ASUS A55M-A Series 62
2.5.6 APM 63
2.5.7 Network Stack 64
2.6 Monitor menu 65
2.7 Boot menu 67
2.7.1 Fast Boot [Enabled] 68
2.7.10 Secure Boot 70
2.7.9 CSM Parameters 70
2.7.12 Boot Override 71
2.8 Tools menu 72
2.9 Exit menu 73
2-32 ASUS A55M-A Series 74
ASUS contact information 77
DECLARATION OF CONFORMITY 78

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