Motherboard Specifications, M2N78-LA (Violet)
Socket type: AM2
TDP:
Motherboard supports the following processor upgrades:
- AMD Athlon X2 (Bt)
- AMD Athlon 64 X2 up to 6000+ (W)
- AMD Phenom Triple-Core up to 8xxx (AM2+) (Toliman)
- AMD Phenom Quad-Core 9xxx series (AM2+) up to 9850 (Agena)
- Dual channel memory architecture
- Four DDR2 SO-DIMM (240-pin) sockets
- Supported DIMM types:
- PC2-6400 (800 MHz)
- PC2-5300 (667 MHz)
- Non-ECC memory only, unbuffered
- Supports 4GB DDR2 DIMMs
- Supports up to 16 GB on 64-bit PCs
- Supports up to 4 GB* on 32-bit PCs
- 32 bit PCs cannot address a full 4.0 GB of memory.
Figure 2: Back I/O pane

1 - PS/2 mouse (green)
2 - S/PDIF coaxial out
3 - Video Graphics Adapter
4 - IEEE 1394
5 - RJ-45 Network (LAN)
6 - Audio: Center/Subwoofer (yellow orange)
7 - Audio: Rear Speaker Out (black)
8 - Audio: Line In (light blue)
9 - Audio: Line Out (lime)
10 - Audio: Microphone (pink)
11 - Audio: Side Speaker Out (gray)
12 - USB 2.0: 4
13 - DVI
14 - PS/2 keyboard (purple)
- One 24-pin ATX power connector
- One 4-pin ATX power connector
- Four SATA connectors
- One floppy drive connector
- Two 12V fan connectors for CPU fan and chassis fan
- One 9-pin header for power button, reset button, power LED, and HDD LED
- One S/PDIF digital audio output header
- One front line input connector
- One 9-pin audio header for headphone-out and microphone-in (yellow, requires matching front audio jack module)
- Six USB headers supporting sight USB 2.0 ports or devices
- One 1394a header
- One SPI (ROM programming) connector
- One jumper for resetting BIOS settings
- One jumper to disable BIOS password checking

CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
This motherboard has a jumper to clear the Real Time Clock (RTC) RAM in
CMOS.
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_PW.
- Move the jumper CLEAR_PW to pins 1-2.
- Plug in the power cord and turn ON the computer.
- Hold down the F10 key during the startup process and enter BIOS setup to change or clear the password.
- After changing or clearing the BIOS passwords, remember to reset the jumper to pins 2-3.
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