Acer Altos G540 M2 - Manual (Page 35)

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System Status Green ON System Ready / No
Alarm
Green Blink (1Hz with
at 50% duty
cycle) System Ready but
degraded some CPU
fault, DIMM killed
Amber ON Critical Alarm (Critical
power modules, Voltage
Power supply, critical
temperature and
voltage … etc. failure)
Amber Blink (1Hz with
at 50% duty
cycle) Non-critical Alarm (Non-
critical temperature and
voltage)
N/A OFF System not ready (Post
error/NMI event/CPU or
terminator missing, …
etc.)
LAN Activity
(LAN1 and
LAN2) Green ON LAN Link / No Access
Green Blink LAN Access
N/A OFF Disconnect / Idle
System ID N/A OFF Normal
Blue ON System Identification