Datasheet

Technical Reference
33
1.12.2.8 +5 V Standby Power Indicator LED and Additional LEDs
The +5 V standby power indicator LED shows power is still present even when the
computer appears to be off. Figure 7 shows the location of the standby power
indicator LED on the board.
CAUTION
If AC power is switched off and the standby power indicators are still lit, disconnect
the power cord before installing or removing any devices connected to the board.
Failure to do so could damage the board and any attached devices.
In addition to the standby power indicator, the board contains two LEDs that indicate
the following:
 The Processor LED indicates an elevated temperature on the processor that could
affect performance.
 The Voltage Regulator LED indicates an elevated temperature in the processor
voltage regulator circuit that could affect performance.
Figure 7 shows the location of these additional LEDs.
Item Description
A Voltage Regulator LED (Red)
B Standby power indicator LED (Green)
C Processor LED (Red)
Figure 7. Locations of Indicator LEDs