MSI G52-75221X5 Manual page 40

M S-7522 M ainboard
DIMM Warning LED
Lights red when the incorrect memory installed into DIMM_C0/ DIMM_C1 (the DIMMs
of 3rd channel).
Power LED
Lights green when the system is in power-on(S0/S1) status.
Suspend LED
Lights yellow when the system is suspended (S3/S4/S5 ).
PCIE and PCI LEDs
Lights blue when the slots is functional.
En-30