Asus M4N75TD - Manual (Page 32)

2. DRAM LED
DRAM LED checks the DRAM in sequence during motherboard booting process. If an
error is found , the LED next to the error device will continue lighting until the problem
is solved. This user-friendly design provides an intuitional way to locate the root
problem within a second.
3. Core Unlocker LED
The Core Unlocker LED lights when the Core Unclocker switch is turned to Enable.
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