Motherboard M2N68-LA (Narra 3)
E3503 First Edition V1 October 2007 Contents M2N68-LA (Narra 3) specifications summary........................................... iii 1. Motherboard layout.......................................................................... 1 2. Central Processing Unit (CPU)....................................................... 2 3. 4. ii 2.1 Overview............................................................................. 2 2.2 Installing the CPU........................................................
M2N68-LA (Narra 3) specifications summary CPU Socket AM2 for AMD Athlon™ 64 / Athlon™ 64 X2 / Sempron™ Rev F / Rev G 89W/ Phenom X4 9600 95W/ Phenom X2 65W and 89W (Socket-AM2+) processor CPU FSB supports up to 2000MT/sec Chipset NVIDIA® MCP61P (co-layout with MCP68) Memory Dual-channel memory architecture 4 x 240-pin DIMM sockets support up to 8 GB nonECC 1.
M2N68-LA (Narra 3) specifications summary Front panel and back panel Front panel: 1 x 9-pin header for Power Button, Reset Button, Power LED, HDD LED 2 x 9-pin header for USB front panel (4 ports) 2 x 4-pin header for USB mini PMD use (2 ports) 1 x 9-pin header for Audio 1 x 9-pin header for IEEE 1394 Back panel: 1 x PS/2 keyboard 1 x PS/2 mouse 1 x 15-pin VGA 2 x USB + RJ-45 LAN connector 2 x USB + 1 x IEEE 1394 Azalia 6 ports audio jack: 4 x Line-out, 1 x Line-in, 1 x Mic-in (with jack retasking support)
1. Motherboard layout 24.5cm (9.6in) CPU_FAN PS/2KBMS T: Mouse B: Keyboard Super I/O Asus F8000 M2N68-LA RTL8201N AUDIO 24.5cm (9.
2. Central Processing Unit (CPU) 2.1 Overview The motherboard comes with a 940-pin AM2 socket designed for the AMD Athlon™ 64/ Athlon™ 64 X2/Sempron™ Rev F/Rev G 89W processor. The AM2 socket has a different pinout from the 940-pin socket designed for the AMD Opteron™ processor. Make sure you use a CPU designed for the 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! 2.
3. Position the CPU above the socket such that the CPU corner with the gold triangle matches the socket corner with a small triangle. 4. Carefully insert the CPU into the socket until it fits in place. Gold triangle Small triangle 5. When the CPU is in place, push down the socket lever to secure the CPU. The lever clicks on the side tab to indicate that it is locked. 6. Install a CPU heatsink and fan following the instructions that came with the heatsink package.
3. System memory The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched differently to prevent installation on a DDR DIMM socket. The following figure illustrates the location of the DDR2 DIMM sockets: 3.
3.2 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components. 2 To install a DIMM: 1. Unlock a DIMM socket by pressing the retaining clips outward. 2. Align a DIMM on the socket such that the notch on the DIMM matches the break on the socket. 3.
4. Expansion slots 4.1 PCI Express x16 slot This motherboard supports PCI Express x16 graphic cards that comply with the PCI Express specifications. The figure shows a graphics card installed on the PCI Express x16 slot. 4.2 PCI Express x1 slot This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the PCI Express specifications. The figure shows a network card installed on the PCI Express x1 slot. 4.
5. 1. Jumpers Clear RTC RAM (3-pin CLRTC) This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. To erase the RTC RAM: 1. Turn OFF the computer and unplug the power cord. 2. Remove the onboard battery. 3.
2. Clear password (3-pin CLRPW) This jumper allows you to clear the password if you forgot your password. To erase the password: 1. Turn OFF the computer and unplug the power cord. 2. Move the jumper cap from pins 2-3 (Normal) to pins 1-2 (Clear Password). 3. Plug the power cord and turn ON the computer. 4. After the computer boots up, turn OFF the computer. 5. Move the jumper cap from pins 1-2 to pins 2-3. 6.
6. Connectors 6.1 Rear panel connectors 1 2 3 4 5 6 7 8 9 10 13 12 11 1. PS/2 mouse port (green). This port is for a PS/2 mouse. 2. Coaxial S/PDIF Out port. This port connects an external audio output device via a coaxial S/PDIF cable. 3. IEEE 1394a port. This 6-pin IEEE 1394a port provieds high-speed connectivity for audio/video devices, storage peripherals, PCs, or portable devices. 4. LAN (RJ-45) port.
Refer to the audio configuration table for the function of the audio ports in 2, 4, 6, or 8-channel configuration. Audio 2, 4, 6, or 8-channel configuration Port Light Blue Lime Pink Orange Black Gray 11. Headset. 2-channel Line In Line Out Mic In – – – 4-channel 6-channel 8-channel Line In Front Speaker Out Mic In – Rear Speaker Out – Line In Front Speaker Out Mic In Center/Subwoofer Rear Speaker Out – Line In Front Speaker Out Mic In Center/Subwoofer Rear Speaker Out Side Speaker Out USB 2.
6.2 Internal connectors This section describes and illustrates the internal connectors on the motherboard. 1. Floppy disk drive connector (34-1 pin FLOPPY) This connector is for the provided floppy disk drive (FDD) signal cable. Insert one end of the cable to this connector, then connect the other end to the signal connector at the back of the floppy disk drive. Pin 5 on the connector is removed to prevent incorrect cable connection when using a FDD cable with a covered Pin 5.
2. IDE connector (40-1 pin PRIMARY_IDE) The onboard IDE connector is for the Ultra DMA 133/100/66 signal cable. There are three connectors on each Ultra DMA 133/100/66 signal cable: blue, black, and gray. Connect the blue connector to the motherboard’s IDE connector, then select one of the following modes to configure your device.
3. ATX power connectors (24-pin ATXPOWER, 4-pin ATX_CPU) These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.
4. Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4) These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives.
6. CPU and Chassis fan connectors (3-pin CPU_FAN,. 3-pin CHASSIS_FAN1) The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a total of 1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan connectors on the motherboard, making sure that the black wire of each cable matches the ground pin of the connector. Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components.
8. Internal audio connector (4-pin F_LINE_IN) This connector allows you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card.
9. System panel connector (10-1 pin F_PANEL) This connector supports several chassis-mounted functions. PLED+ PLEDPWR GND PWR LED PWR BTN M2N68-LA HDLED+ HDLEDGround Reset NC F_PANEL M2N68-LA System panel connector • HD LED RESET System power LED (2-pin PLED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
18 M2N68-LA (Narra 3)
