M2N68-LA (Narra 3)
Motherboard
E3503
First Edition V1
October 2007
Contents
M2N68-LA (Narra 3) specifications summary........................................... |
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1. |
Motherboard layout......................................................................... |
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2. |
Central Processing Unit (CPU)....................................................... |
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2.1 |
Overview ............................................................................. |
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2.2 |
Installing the CPU ............................................................... |
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3. |
System memory............................................................................... |
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3.1 |
Memory configurations . ...................................................... |
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3.2 |
Installing a DIMM ................................................................ |
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3.3 |
Removing a DIMM .............................................................. |
5 |
4. |
Expansion slots .............................................................................. |
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4.1 |
PCI Express x16 slot . ......................................................... |
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4.2 |
PCI Express x1 slot . ........................................................... |
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4.3 |
PCI slots . ............................................................................ |
6 |
5. |
Jumpers |
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6. |
Connectors....................................................................................... |
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6.1 ....................................................... |
Rear panel connectors |
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6.2 ............................................................ |
Internal connectors |
11 |
ii
M2N68-LA (Narra 3) specifications summary
CPU
Chipset
Memory
Expansion slots
Onboard I/O
Onboard IDE
Onboard audio
Onboard LAN
PC health monitoring
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
NVIDIA® MCP61P (co-layout with MCP68)
Dual-channel memory architecture
4 x 240-pin DIMM sockets support up to 8 GB nonECC 1.8V Dual Channel DDR2 800/667 SDRAM memory (registered DIMMs are not supported)
1 x PCI Express™ x16 slot for discrete graphics card 2 x PCI Express™ x1 slot
1 x PCI slots
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x VGA port
6 x Audio jacks
1 x RJ-45 10/100 LAN connector
10 x USB 2.0 ports (support hot-plug function)
1 x Floppy connector
1 x IDE connector
4 x SATA 3G connectors
NVIDIA® MCP61 embedded one channel Bus Master IDE port supports Ultra DMA 66/100, PIO Mode 3/4
NVIDIA® MCP61 embedded 4 SATA ports
ATAPI IDE DVD-ROM, CD-ROM, CD-R, CD-RW and LS-120 supported
Supports HD audio codec that includes line-in, line-out (7.1 channel), microphone-in, and S/PDIF-out
Audio Jack Presence Detection (all front and rear jacks) must comply with Intel® High Definition audio specification 1.0 section 7.4.2
Using Realtek® audio codec ALC888S
Realtek® RTL8201n 10/100Mbps Ethernet PHY
ASUS F8000 for CPU/System fan control, linear fan speed control and CPU temperature monitoring
(continued on the next page)
iii
M2N68-LA (Narra 3) specifications summary
Front panel and back panel
Onboard connector
BIOS features
Form factor
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)
24-pin ATX power connector
4-pin ATX 12V power connector
1 x Intel® HD audio front panel 2x5-pin header
1 x Front line-in
2 x USB front panel 9-pin headers
2 x USB front panel 4-pin headers
1 x IEEE 1394 9-pin header
1 x S/PDIF-out (for HDMI)
1 x HDMI 2x8-pin header
1 x CPU fan connector
1 x System fan connector
Award code base 4Mb SPI Serial Flash
HP BIOS with Enhanced ACPI, DMI, Green, PnP Features Plus
uATX form factor: 9.6” x 9.6”
*Specifications are subject to change without notice.
iv
1.Motherboard layout
24.5cm (9.6in)
PS/2KBMS
T: Mouse
B: Keyboard
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SPDIF_OUT |
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SPDIF_OUT |
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Socket AM2 |
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VGA |
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1394+USB |
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ATX_CPU |
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LAN+USB |
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M2N68-LA |
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RTL8201N |
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AUDIO |
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CHASSIS_FAN1 |
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PCIE_X16
CPU_FAN 
bit,240-pin module) |
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bit,240-pin module) |
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bit,240-pin module) |
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bit,240-pin module) |
DDR2 XMM1 (64 |
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DDR2 XMM2 (64 |
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DDR2 XMM3 (64 |
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DDR2 XMM4 (64 |
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Super
I/O
Asus
F8000
FLOPPY
ATXPOWER |
24.5cm (9.6in) |
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CR2032 3V |
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ALC888 |
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PCIE_X1_1 |
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Lithium Cell |
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CMOS Power |
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NVIDIA® |
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MCP61P |
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F_LINE_IN |
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PCIE_X1_2 |
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F_AUDIO |
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agere |
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PC2 |
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L-FW3227-100 |
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F_1394 |
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F_USB1 |
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F_USB2 |
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SATA4 SATA3 |
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PRIMARY IDE |
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SATA1 SATA2 |
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F_USB3
F_USB4
BUZZER
BIOS 
CMOSCLEARP.WCLEAR
F_PANEL
M2N68-LA (Narra 3)
2.Central Processing Unit (CPU)
2.1Overview
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!
2.2Installing the CPU
To install a CPU:
1.Locate the CPU socket on the motherboard.
M2N68-LA
M2N68-LA CPU Socket AM2
2.Unlock the socket by pressing the lever sideways, then lift it up to a
90º angle. |
Socket lever |
Make sure that the socket lever is lifted up to a 90º angle; otherwise, the CPU will not fit in completely.
M2N68-LA (Narra 3)
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.
M2N68-LA (Narra 3)
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