Asus P4B-LS - Manual (Page 92)

4-28 Chapter 4: BIOS Setup
4.5.2 Hardware Monitor
MB Temperature [xxxC/xxxF]
CPU Temperature [xxxC/xxxF]
The onboard hardware monitor automatically detects the MB
(motherboard) and CPU temperatures.
CPU Fan Speed [xxxxRPM]
Power Fan Speed
Chassis Fan Speed [N/A]
The onboard hardware monitor automatically detects the CPU and chassis
fan speeds in rotations per minute (RPM).
VCORE Voltage, +3.3V Voltage, +5V Voltage, +12V Voltage
The onboard hardware monitor automatically detects the voltage output
through the onboard voltage regulators.
If any of the monitored items is out of range, the following error
message appears: “Hardware Monitor found an error. Enter Power
setup menu for details”. You will then be prompted to “Press F1 to
continue or DEL to enter SETUP”.