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Asus M3A78 PRO User Manual - Page 28

M3A78 PRO Motherboard Qualiﬁed Vendors Lists QVL - am2 am2

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• You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation. • Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. • If you install four 1 GB memory modules, the system may only recognize less than 3GB because the address space is reserved for other critical functions. This limitation appears on Windows® XP/Vista 32-bit operation system which does not support Physical Address Extension (PAE). • If you install Windows® XP/Vista 32-bit operation system, a total memory of less than 3GB is recommended. • This motherboard does not support memory modules made up of 128 Mb chips. Due to OS limitation, this motherboard can only support up to 8 GB on the operating systems listed below. You may install a maximum of 2 GB DIMMs on each slot. 64-bit Windows® XP Professional x64 Edition Windows® Vista x64 Edition M3A78 PRO Motherboard Qualified Vendors Lists (QVL) DDR2-1066 MHz capability for AM2+ CPU Size Vendor Chip No. 512MB KINGSTON 1GB KINGSTON E5108AJBG-1J-E E5108AJBG-1J-E CL Chip Brand SS/ DS Part No. N/A ELPIDA SS KVR1066D2N7/512 N/A ELPIDA SS KVR1066D2N7/1G DIMM socket support (Optional) A* B* C* • • 1-16 Chapter 1: Product introduction

Section	Page
M3A78 PRO specifications summary	10
Chapter 1: Product introduction	13
1.1 Welcome!	14
1.2 Package contents	14
1.3 Special features	15
1.3.1 Product highlights	15
1.3.2 ASUS unique features	17
1.3.3 ASUS intelligent performance and overclocking features	19
1.4 Before you proceed	20
1.5 Motherboard overview	21
1.5.1 Motherboard layout	21
1.5.2 Placement direction	22
1.5.3 Screw holes	22
1.6 Central Processing Unit (CPU)	23
1.6.1 Installing the CPU	23
1.6.2 Installing the heatsink and fan	25
1.7 System memory	27
1.7.1 Overview	27
1.7.2 Memory configurations	27
1.7.3 Installing a DIMM	35
1.7.4 Removing a DIMM	35
1.8 Expansion slots	36
1.8.1 Installing an expansion card	36
1.8.2 Configuring an expansion card	36
1.8.3 PCI slots	38
1.8.4 PCI Express x1 slots	38
1.8.5 PCI Express 2.0 x16 slot	38
1.9 Jumpers	39
1.10 Connectors	41
1.10.1 Rear panel connectors	41
1.10.2 Internal connectors	44
Chapter 2 BIOS setup	53
2.1 Managing and updating your BIOS	54
2.1.1 Creating a bootable floppy disk	55
2.1.2 ASUS EZ Flash 2 utility	56
2.1.3 AFUDOS utility	57
2.1.4 ASUS Update utility	59
2.2 BIOS setup program	62
2.2.1 BIOS menu screen	63
2.2.2 Menu bar	63
2.2.3 Navigation keys	63
2.2.4 Menu items	64
2.2.5 Sub-menu items	64
2.2.6 Configuration fields	64
2.2.7 Pop-up window	64
2.2.8 Scroll bar	64
2.2.9 General help	64
2.3 Main menu	65
2.3.1 System Time [xx:xx:xx]	65
2.3.2 System Date [Day xx/xx/xxxx]	65
2.3.3 Legacy Diskette A [1.44M, 3.5 in.]	65
2.3.4 Primary IDE Master/Slave	66
2.3.5 SATA1/2/3/4/5/6	67
2.3.6 Storage Configuration	68
2.3.7 System Information	69
2.4 Advanced menu	70
2.4.1 Jumperfree Configuration	70
2.4.2 AI NET 2	74
2.4.3 CPU Configuration	75
2.4.4 Chipset	75
2.4.5 ECC Configuration	77
2.4.6 Onboard Devices Configuration	79
2.4.7 PCI PnP	80
2.4.8 USB Configuration	81
2.5 Power menu	82
2.5.1 Suspend Mode [Auto]	82
2.5.2 Repost Video on S3 Resume [No]	82
2.5.3 ACPI 2.0 Support [Disabled]	82
2.5.4 ACPI APIC Support [Enabled]	82
2.5.5 APM Configuration	83
2.5.6 Hardware Monitor	85
2.6 Boot menu	86
2.6.1 Boot Device Priority	86
2.6.2 Boot Settings Configuration	87
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 ASUS O.C. Profile	92
2.8 Exit menu	93
Chapter 3 Software support	95
3.1 Installing an operating system	96
3.2 Support DVD information	96
3.2.1 Running the support DVD	96
3.2.2 Drivers menu	97
3.2.3 Utilities menu	98
3.2.4 Make Disk menu	100
3.2.5 Manual menu	101
3.2.6 ASUS Contact information	101
3.2.7 Other information	102
3.3 ASUS Express Gate	104
3.4 ATI® Hybrid CrossFireX™	112
3.4.1 System requirements	112
3.4.2 Before you proceed	112
3.4.3 Installing AMD Chipset Driver	113