Acer Altos G520 series - Manual (Page 144)

Appendix A: Troubleshooting 134
POST
code 1-4
(LSB, bit1,
bit2, MSB) Display
boot 80
POST code Left rear of
board Each LED
can be
Off,
Green,
Amber,
Red See the POST code
table
Fan Pack
Fault Warn on
fan failure Front center
board Amber On = Fault
CPU 1 & 2
Fan Fault Identify fan
failure Front center
board Amber On = Fault
CPU 1 & 2
Fan Fault Identify
processor
failure 1” behind
processor
socket Amber On = Fault
5v
Standby Identify 5v
standby
power on
state Front left
board Amber On = 5v standby
power on
Power
LED Identify the
power state
of the
system Control
panel Green • Off = Power is
off (off or S5)
• On = Power on
or S0)
• Slow Blink =
Low power
state (S1 - S3)
LED Name Function Location Color Correction
BB!H631!.!FO/cppl!!Qbhf!245!!Uvftebz-!Bvhvtu!28-!3115!!5;13!QN