User Guide
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Contents Notices...vi Safety information vii About this guide vii M4A78LT-M LX specifications summary ix Chapter 1: Product introduction 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Special features 1-1 1.3.1 Product highlights 1-1 1.3.2 Innovative ASUS features 1-3 1.4 Before you proceed 1-5 1.5 Motherboard overview 1-6 1.5.1 Placement direction 1-6 1.5.2 Screw holes 1-6 1.5.3 Motherboard layout 1-7 1.5.4 Layout contents 1-7 1.6 Central Processing Unit (CPU 1-8 1.6.1 Installing the CPU 1-8 1.6.2 Installing the heatsink and fan 1-10 1.7 System...
Contents Notices...vi Safety information vii About this guide vii M4A78LT-M LX specifications summary ix Chapter 1: Product introduction 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Special features 1-1 1.3.1 Product highlights 1-1 1.3.2 Innovative ASUS features 1-3 1.4 Before you proceed 1-5 1.5 Motherboard overview 1-6 1.5.1 Placement direction 1-6 1.5.2 Screw holes 1-6 1.5.3 Motherboard layout 1-7 1.5.4 Layout contents 1-7 1.6 Central Processing Unit (CPU 1-8 1.6.1 Installing the CPU 1-8 1.6.2 Installing the heatsink and fan 1-10 1.7 System...
User Guide
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DO NOT overtighten the screws! M4A78LT-M LX 1-6 Chapter 1: Product introduction 1.5 Motherboard overview 1.5.1 Placement direction When installing the motherboard, ensure that you place it into the holes indicated by circles to secure the motherboard to the chassis. Place this side towards the rear of the chassis as indicated in the image below. 1.5.2 Screw holes Place six screws into the chassis in the correct orientation. Doing so can damage the motherboard. The edge with external ports goes to the rear part of the chassis.
DO NOT overtighten the screws! M4A78LT-M LX 1-6 Chapter 1: Product introduction 1.5 Motherboard overview 1.5.1 Placement direction When installing the motherboard, ensure that you place it into the holes indicated by circles to secure the motherboard to the chassis. Place this side towards the rear of the chassis as indicated in the image below. 1.5.2 Screw holes Place six screws into the chassis in the correct orientation. Doing so can damage the motherboard. The edge with external ports goes to the rear part of the chassis.
User Guide
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... to do so can cause severe damage to unlock a DIMM socket. 2. Firmly insert the DIMM into a socket in only one direction. The DIMM might get damaged when it fits in the wrong direction to unlock the DIMM. 2 Support the DIMM lightly with extra force. 1 DIMM notch 2. 1.7.3 Installing a DIMM Unplug the power supply...
... to do so can cause severe damage to unlock a DIMM socket. 2. Firmly insert the DIMM into a socket in only one direction. The DIMM might get damaged when it fits in the wrong direction to unlock the DIMM. 2 Support the DIMM lightly with extra force. 1 DIMM notch 2. 1.7.3 Installing a DIMM Unplug the power supply...
User Guide
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... 623 V1.1.1(2009-01) EN 60950-1:2006 EN 60065:2002+A1:2006+A11:2008 EN 60950-1:2006+A11:2009 2009/125/EC-ErP Directive Regulation (EC) No. 1275/2008 Regulation (EC) No. 278/2009 EN 62301:2005 EN 62301:2005 Regulation (EC) No. 642...complies with part 15 of the following apparatus: Product name : Motherboard Model name : M4A78LT-M LX conform with the essential requirements of the FCC Rules. DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corporate Way, Fremont, CA 94539. Representative Person's Name :...
... 623 V1.1.1(2009-01) EN 60950-1:2006 EN 60065:2002+A1:2006+A11:2008 EN 60950-1:2006+A11:2009 2009/125/EC-ErP Directive Regulation (EC) No. 1275/2008 Regulation (EC) No. 278/2009 EN 62301:2005 EN 62301:2005 Regulation (EC) No. 642...complies with part 15 of the following apparatus: Product name : Motherboard Model name : M4A78LT-M LX conform with the essential requirements of the FCC Rules. DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corporate Way, Fremont, CA 94539. Representative Person's Name :...