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Asus M4A78LT PLUS User Manual - Page 31

M4A78LT PLUS Chassis intrusion connector

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7. USB connectors (10-1 pin USB78, USB910) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480Mbps connection speed. USB+5V USB_P10USB_P10+ GND NC USB+5V USB_P8USB_P8+ GND NC M4A78LT PLUS USB78 PIN 1 USB910 PIN 1 USB+5V USB_P9USB_P9+ GND USB+5V USB_P7USB_P7+ GND M4A78LT PLUS USB2.0 connectors Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard! The USB 2.0 module is purchased separately. 8. Chassis intrusion connector (4-1 pin CHASSIS) This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event. By default, the pin labeled "Chassis Signal" and "Ground" are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature. +5VSB_MB Chassis Signal GND M4A78LT PLUS CHASSIS M4A78LT PLUS Chassis intrusion connector ASUS M4A78LT PLUS 1-21

Section	Page
Notices	6
Safety information	7
About this guide	8
M4A78LT PLUS specifications summary	9
Chapter 1	11
Product introduction	11
1.1 Before you proceed	11
1.2 Motherboard overview	12
1.2.1 Placement direction	12
1.2.2 Screw holes	12
1.2.3 Motherboard layout	13
1.2.4 Layout contents	14
1.3 Central Processing Unit (CPU)	14
1.3.1 Installing the CPU	14
1.3.2 Installing the heatsink and fan	16
1.4 System memory	17
1.4.1 Overview	17
1.4.2 Memory configurations	18
1.4.3 Installing a DIMM	21
1.4.4 Removing a DIMM	22
1.5 Expansion slots	23
1.5.1 Installing an expansion card	23
1.5.2 Configuring an expansion card	23
1.5.3 PCI slot	23
1.5.4 PCI Express x1 slot	23
1.5.5 PCI Express x16 slot	23
1.6 Jumpers	24
1.7 Connectors	26
1.7.1 Rear panel ports	26
1.7.2 Internal connectors	27
1.8 Software support	32
1.8.1 Installing an operating system	32
1.8.2 Support DVD information	32
Chapter 2	33
BIOS information	33
2.1 Managing and updating your BIOS	33
2.1.1 ASUS Update utility	33
2.1.2 ASUS EZ Flash 2	34
2.1.3 ASUS CrashFree BIOS 3	35
2.1.4 ASUS BIOS Updater	36
2.2 BIOS setup program	39
2.2.1 BIOS menu screen	40
2.2.2 Menu bar	40
2.2.3 Navigation keys	40
2.2.4 Menu items	41
2.2.5 Submenu items	41
2.2.6 Configuration fields	41
2.2.7 Pop-up window	41
2.2.8 Scroll bar	41
2.2.9 General help	41
2.3 Main menu	42
2.3.1 System Time [xx:xx:xx]	42
2.3.2 System Date [Day xx/xx/xxxx]	42
2.3.3 SATA 1~4	42
2.3.4 SATA Configuration	43
2.3.5 System Information	44
2.4 Advanced menu	45
2.4.1 CPU Configuration	45
2.4.2 Chipset	46
2.4.3 Onboard Devices Configuration	46
2.4.4 PCIPnP	47
2.4.5 USB Configuration	47
2.5 Power menu	48
2.5.1 Suspend Mode [Auto]	48
2.5.2 ACPI 2.0 Support [Enabled]	48
2.5.3 ACPI APIC Support [Enabled]	49
2.5.4 APM Configuration	49
2.5.5 HW Monitor Configuration	49
2.5.6 EuP Ready [Disabled]	50
2.6 Boot menu	50
2.6.1 Boot Device Priority	51
2.6.2 Boot Settings Configuration	51
2.6.3 Security	51
2.7 Tools menu	53
2.7.1 ASUS EZ Flash 2	53
2.7.2 ASUS O.C. Profile	53