Figure : The M2N68-LA (Narra6) motherboard
HP and Compaq Desktop PCs - Motherboard Specifications, M2N68-LA (Narra6)
Manufacturer's motherboard name: Pegatron M2N68-LA
HP/Compaq name: Narra6-GL6
Micro-ATX: 24.5 cm (9.6 inches) x 24.5 cm (9.6 inches)
NVIDIA GeForce 6150SE nForce 430
Front-side bus speed
- 2000MT/s (2.0 GT/s)
- HyperTransport 1.0 based on the NVIDIA GeForce chipset requirements
Processor upgrade information
Motherboard supports the following processor upgrades:
Socket type: AM3
TDP: 95 watt
- AMD Phenom II X4 9xx/9xxe/8xx Quad-Core (Deneb)
- AMD Phenom II X3 7xx/7xxe Triple-Core (Heka)
- AMD Phenom II X2 5xx (Callisto)
- AMD II Athlon X4 6xx/6xxe (Propus)
- AMD II Athlon X3 4xx/4xxe (Rana)
- AMD II Athlon X2 2xx/2xxe (Regor)
- AMD Sempron 1xx (Sargas)
Memory upgrade information
- Dual channel memory architecture
- Two DDR3 DIMM (240-pin) sockets
- Supported DIMM types:
- PC3-8500 (DDR3-1066)
- PC3-10600 (DDR3-1333)
- Non-ECC memory only, unbuffered
- Supports 2GB DDR2 DIMMs
- Supports up to 4 GB* on 32 bit PCs
*32-bit operating systems cannot address a full 4.0 GB of memory.
Integrated graphics using nVidia GeForce 6150SE
*Integrated video is not available if a graphics card is installed.
- Integrated graphics using nVidia GeForce 6150SE
- Also supports PCI Express x16 graphics cards*
note:*Either integrated graphics or the PCI Express x16 slot are usable at one time; they are not usable concurrently.
Integrated Realtek ALC888S Audio
*Integrated audio is not available if a sound card is installed.
Number of channels: 6
Audio CODEC: ALC888S
Maximum bit depth: up to 24-bit
Maximum sample rate: up to 192,000 Hz
Supports SPDIF digital
Interface: Integrated into motherboard
Technology: Realtek RTL8201N
Data transfer speeds: up to 10/100 Mb/s
Transmission standards:10-Base-T Ethernet
One PCI Express x16
Two PCI Express x1
Back I/O ports
Video Graphics Adapter port
USB 2.0: 4
RJ45 Network (LAN)
Audio: Line in
Audio: Front speaker/Line out
Audio: Microphone in
Figure : Back I/O panel
- One CPU fan connector
- One 24-pin ATX power connector
- One 4-pin ATX power connector
- One ROM recovery connector
- Four SATA connectors
- One ROM recovery connector
- One jumper for resetting BIOS settings
- One jumper to clear the BIOS password setting
- One system panel connector
- One AC Power Loss Restart Selector
- Four USB headers, supporting 6 USB connections
- One S/PDIF out connector
- One Front audio connector for headphone and microphone
- One chassis fan connector
Figure : layout
Clearing the CMOS settings
caution:Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
To clear CMOS, follow these steps:
Temporarily set jumper Clear CMOS to pins 1-2.
Wait 5-10 seconds and then return the jumper to pins 2-3.
You may now restart the PC.
Clearing the BIOS password
The BIOS password is used to protect BIOS settings from unwanted changes. If you have forgotten your password you may disable password checking.
To erase the BIOS password follow these steps:
Turn OFF the computer and unplug the power cord.
Locate the jumper labeled Clear P.W.
Move the jumper on jumper Clear P.W. to pins 1-2.
Wait approximately 10 seconds and then return the jumper to pins 2-3.
Plug in the power cord and turn ON the computer.
This connector allows qualified technicians to reload firmware into the SPI boot flash in case there is problem with the data.
This jumper should not be changed.
The ROM Recovery Header on the motherboard. The header is labeled SPI_Header.
SPI Header chart.
AC Power Loss Restart Selector - NJ18 Header
The NJ18 jumper allows the user to set whether or not to start the PC after power interruptions.
If the jumper is set in the [Disabled] configuration the selector leaves your PC off. If the jumper is set in the [Enabled] configuration the selector starts the PC.
The NJ18 jumper on the motherboard.
NJ18 Header chart.