Getting Started
Table Of Contents

24 www.hp.com Getting Started
Getting Started
Red Power LED 
flashes two times, 
once every 
second, followed 
by a two second 
pause. The beeps 
continue for five 
iterations, then 
stop. The LED 
flashes continue 
until the problem 
is resolved.
✎
Beeps may 
not occur 
on all 
models for 
this activity. 
2 Processor thermal 
protection 
activated:
A fan may be 
blocked or not 
turning.
OR 
The heatsink/fan 
assembly is not 
properly attached 
to the processor. 
1. Ensure that the 
computer air vents 
are not blocked and 
the processor cooling 
fan is running. Leave 
a 4-inch (10.2-cm) 
clearance at the back 
of unit and above the 
monitor to permit 
required airflow.
2. Open hood, press 
power button, and 
see if the processor 
fan spins. If the 
processor fan is not 
spinning, make sure 
the fan's cable is 
plugged onto the 
system board 
header. Ensure the 
fan is fully/properly 
seated or installed.
3. If fan is plugged in 
and seated properly, 
but is not spinning, 
then replace 
processor fan.
4. Reseat processor 
heatsink and verify 
that the fan assembly 
is properly attached.
5. Contact an 
authorized reseller or 
service provider.
Diagnostic Front Panel LEDs and Audible Codes 
Activity Beeps
Possible 
Cause
Recommended 
Action










