HP Sprout Maintenance & Service Manual page 152

Activity
Red Power LED flashes eleven
times, once every second,
followed by a two second pause.
Beeps stop after fifth iteration
but LEDs continue until problem
is solved.
System does not power on and
LEDs are not flashing.
142 Chapter 10 POST error messages
Beeps Possible Cause
11 The current processor does
not support a feature
previously enabled on this
system.
None System unable to power on.
Recommended Action
1. Install a TXT capable processor.
2. Disable TXT in the Computer Setup (F10)
utility.
3. Reinstall the original processor.
Press and hold the power button for less than 4
seconds. If the hard drive LED turns white, the power
button is working correctly. Try the following:
▲ Replace the system board.
OR
Press and hold the power button for less than 4
seconds. If the hard drive LED does not turn on white
then:
1. Check that the unit is plugged into a working
AC outlet.
2. Check that the power button cable is properly
connected to the system board.
3. Replace the AC adapter.
ENWW