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iii
Contents
Contents ...................................................................................................... iii
Notices ........................................................................................................ vii
Safety information .................................................................................... viii
About this guide ......................................................................................... ix
M3A78-T specications summary ............................................................. xi
Chapter 1: Product introduction
1.1 Welcome! ...................................................................................... 1-1
1.2 Package contents ......................................................................... 1-1
1.3 Special features ............................................................................ 1-2
1.3.1 Product highlights ........................................................... 1-2
1.3.2 ASUS unique features .................................................... 1-4
1.3.3 ASUS intelligent performance
and overclocking features ............................................... 1-6
Chapter 2: Hardware information
2.1 Before you proceed ..................................................................... 2-1
2.2 Motherboard overview ................................................................. 2-2
2.2.1 Placement direction ........................................................ 2-2
2.2.2 Screw holes .................................................................... 2-2
2.2.3 Motherboard layout ......................................................... 2-3
2.2.4 Layout contents ............................................................... 2-4
2.3 Central Processing Unit (CPU) ................................................... 2-6
2.3.1 Installing the CPU ........................................................... 2-6
2.3.2 Installing the heatsink and fan ........................................ 2-8
2.4 System memory ......................................................................... 2-11
2.4.1 Overview ........................................................................2-11
2.4.2 Memory congurations .................................................. 2-12
2.4.3 Installing a DIMM .......................................................... 2-13
2.4.4 Removing a DIMM ........................................................ 2-13
2.5 Expansion slots .......................................................................... 2-14
2.5.1 Installing an expansion card ......................................... 2-14
2.5.2 Conguring an expansion card ..................................... 2-14
2.5.3 Interrupt assignments ................................................... 2-15
2.5.4 PCI slots ........................................................................ 2-16
2.5.5 PCI Express x1 slot ....................................................... 2-16