Gigabyte GA-EQ45M-S2 User Manual page 32

22) PHASE LED
The number of lighted LEDs indicates the CPU loading. The higher the CPU loading, the more the
number of lighted LEDs. To enable the Phase LED display function, please first enable Dynamic
Energy Saver Advanced. Refer to Chapter 4, "Dynamic Energy Saver Advanced," for more details.
23) S0/S1/S3/S4/S5 LED (ACPI LEDs)
The ACPI LEDs indicate the system power status (S0, S1, S3, S4, S5) to prevent potential
hardware damage due to improper plug/unplug actions.
GA-EQ45M-S2 Motherboard
System Status Definition
S0 Normal working state
S1 POS (Power on Suspend), only the CPU stops working
S3 STR (Suspend to RAM), only the memory is working
S4 STD (Suspend to Disk), the system main power is turned
off but the system can still be waked up
S5 System is turned off
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