Asus M2N-LR/SATA - Manual (Page 87)

- Chapter : BIOS setup
Smart Fan Control [Enabled]
Allows you to enable or disable the ASUS Smart Fan feature that smartly adjusts
the fan speeds for more efficient system operation. Configuration options:
[Disabled] [Enabled]
The CPU Target Temperature and MB Target Temperature items appear when
you enabled the Smart Fan Control feature.
CPU Target Temperature [XXX]
MB Target Temperature [XXX]
Allows you to set the CPU and system threshold temperature before the Smart Fan
Control is disabled.
VCORE1 Voltage, 3.3V Voltage, 5V Voltage, 5VSB Voltage, VBAT
Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through
the onboard voltage regulators.