Asus Crosshair V Formula-Z - Manual (Page 44)

1-28 Chapter 1: Product introduction
Chapter 1
1.2.8 Onboard LEDs
1. Hard Disk LED
The hard disk LED is designed to indicate the hard disk activity. It blinks when data
is being written into or read from the hard disk drive. The LED does not light up when
there is no hard disk drive connected to the motherboard or when the hard disk drive
does not function.
2. GO LED
Blinking: Indicates that MemOK! is enabled before POST.
Lighting: Indicates that the system loads the preset profile (GO_Button file) for
temporary overclocking when in OS.