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HP and Compaq Desktop PCs - Motherboard Specifications, M2N68-LA (Narra6L)
Figure 1: The M2N68-LA (Narra6L) motherboard
Front-side bus speed
Processor upgrade information
Socket type: AM3
TDP: 95 watt
Motherboard supports the following processor upgrades:
Memory upgrade information
NOTE: *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 Realtek ALC888S Audio
*Integrated audio is not available if a sound card is installed
Back I/O ports
Figure 2: Back I/O panel
1 - Video Graphics Adapter
2 - USB 2.0: 4
3 - RJ-45 Network (LAN)
4 - Audio: Line In (light blue)
5 - Audio: Line Out (lime)
6 - Audio: Microphone (pink)
Figure 3: 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:
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:
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.