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Asus M3A78 EM User Guide - Page 24

Central Processing Unit (CPU), 1.6.1 Installing the CPU - unlock

UPC - 610839163540

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1.6 Central Processing Unit (CPU) The motherboard comes with an AM2+ / AM2 socket designed for AMD® Phenom™ FX / Phenom / Athlon™ / Sempron™ processor. The AM2+/AM2 socket has a different pinout from the 940-pin socket designed for the AMD Opteron processor. Ensure you use a CPU designed for the AM2+/AM2 socket. The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU! 1.6.1 Installing the CPU To install a CPU. 1. Locate the CPU socket on the motherboard. R M3A78-EM M3A78-EM CPU Socket AM2+ 2. Unlock the socket by pressing the lever sideways, then lift it up to a 90°-100° angle. Socket lever Ensure that the socket lever is lifted up to 90°-100° angle, otherwise the CPU does not fit in completely. 1-12 Chapter 1: Product introduction

Section	Page
Notices	6
Safety information	7
About this guide	8
M3A78-EM specifications summary	10
Chapter 1: Product introduction	13
1.1 Welcome!	14
1.2 Package contents	14
1.3 Special features	14
1.3.1 Product highlights	14
1.3.2 ASUS unique features	18
1.3.3 ASUS stylish features	20
1.3.4 ASUS intelligent overclocking features	20
1.4 Before you proceed	21
1.5 Motherboard overview	22
1.5.1 Motherboard layout	22
1.5.2 Placement direction	23
1.5.3 Screw holes	23
1.6 Central Processing Unit (CPU)	24
1.6.1 Installing the CPU	24
1.6.2 Installing the heatsink and fan	26
1.7 System memory	28
1.7.1 Overview	28
1.7.2 Memory configurations	28
1.7.3 Installing a DIMM	32
1.7.4 Removing a DIMM	32
1.8 Expansion slots	33
1.8.1 Installing an expansion card	33
1.8.2 Configuring an expansion card	33
1.8.3 PCI slots	36
1.8.4 PCI Express x1 slot	36
1.8.5 PCI Express x16 slot	36
1.9 Jumpers	37
1.10 Connectors	38
1.10.1 Rear panel connectors	38
1.10.2 Internal connectors	41
Chapter 2: BIOS setup	53
2.1 Managing and updating your BIOS	54
2.1.1 Creating a bootable floppy disk	54
2.1.2 AFUDOS utility	55
2.1.3 ASUS CrashFree BIOS 3 utility	58
2.1.4 ASUS EZ Flash 2 utility	60
2.1.5 ASUS Update utility	61
2.2 BIOS setup program	64
2.2.1 BIOS menu screen	65
2.2.2 Menu bar	65
2.2.3 Navigation keys	66
2.2.4 Menu items	66
2.2.5 Sub-menu items	66
2.2.6 Configuration fields	66
2.2.7 General help	66
2.2.8 Pop-up window	67
2.3 Main menu	68
2.3.1 System Time	68
2.3.2 System Date	68
2.3.3 Legacy Diskette A	68
2.3.4 Primary IDE Master/Slave	69
2.3.5 SATA 1, 2, 3, 5, 6, and E-SATA	70
2.3.6 SATA Configuration	71
2.3.7 System Information	72
2.4 Advanced menu	73
2.4.1 JumperFree Configuration	73
2.4.2 CPU Configuration	75
2.4.3 Chipset	76
2.4.4 Onboard Device Configuration	79
2.4.5 PCIPnP	80
2.4.6 USB Configuration	81
2.5 Power menu	82
2.5.1 Suspend Mode	82
2.5.2 ACPI Support	82
2.5.3 ACPI APIC Support	82
2.5.4 APM Configuration	83
2.5.5 HW Monitor Configuration	84
2.6 Boot menu	85
2.6.1 Boot Device Priority	86
2.6.2 Boot Settings Configuration	86
2.6.3 Security	88
2.7 Tools menu	90
2.7.1 ASUS EZ Flash 2	90
2.7.2 Express Gate	91
2.7.3 AI NET 2	91
2.8 Exit menu	92
Chapter 3: Software support	93
3.1 Installing an operating system	94
3.2 Support DVD information	94
3.2.1 Running the Support DVD	94
3.2.2 Drivers menu	95
3.2.3 Utilities menu	96
3.2.4 Make Disk menu	98
3.2.5 Manual menu	99
3.2.6 ASUS Contact information	100
3.2.7 Other information	100
Appendix: ATI® Hybrid CrossFireX™	104
A.1 System requirements	104
A.2 Before you proceed	104
A.3 Installing AMD Chipset Driver	105