Motherboard Specifications, M2N61-AR (Acacia)
Motherboard supports the following processor upgrades:
- Athlon 64 X2 with Dual Core technology up to 65 Watt
- Athlon 64 up to 65 Watt
- Sempron up to 65 Watt
- Dual channel memory architecture (1 DIMM per channel)
- Two 240-pin DDR2 DIMM sockets
- Supported DIMM types:
- PC2-4200 (533 MHz)
- PC2-5300 (667 MHz)
- PC2-6400 (800 MHz)
- Single or double-sided DIMMs
- Non-ECC memory only, unbuffered
- Supports 2GB DDR2 DIMMs
- Supports up to 4 GB* (2 x 2 GB)* 32 bit PCs cannot address a full 4.0 GB of memory.
- One 2 x 12 mini power connector
- Two SATA connectors
- One 4-pin 12v PC fan connector
- One 9-pin header for power button, reset button, power LED, and HDD LED
- One SPDIF digital audio output connector
- One 9-pin audio header for headphone-out (yellow, Vista capable, requires matching front audio jack, no mic-in support)
- Three USB 2.0 headers supporting 6 USB ports
- 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 jumpers to clear the Real Time Clock (RTC) RAM in CMOS.

NOTE:On certain case designs the jumpers may
be difficult to access. It may be easier to remove the CMOS battery to clear the BIOS settings.
To clear CMOS, follow these steps:

CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.
On certain case designs the jumpers may
be difficult to access. It may be easier to remove the CMOS battery to clear the BIOS CMOS.
The BIOS password is used to protect BIOS settings from unwanted changes. If you have forgotten your password you may disable password checking.

CAUTION: Do not change any jumper setting while the computer is on. Damage to the motherboard can result.

NOTE:On certain case designs the jumpers may
be difficult to access. It may be easier to remove the CMOS battery to clear the BIOS settings.
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.
- Plug 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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