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Questions about GIGABYTE products => Motherboards with Intel processors => Topic started by: bitel on March 07, 2012, 08:30:03 pm

Title: GA-P55A-UD7......ACPI LED ON PC IS DEAD
Post by: bitel on March 07, 2012, 08:30:03 pm

Hello. i have a problem with my motherboard after power outage. my motherdoard ACPI LED is no at S4_S5 mode.
how can i reset that?
i try t o clear CMOS but nothing change :(
Heeeeellppp please

Title: Re: GA-P55A-UD7......ACPI LED ON PC IS DEAD
Post by: Lsdmeasap on March 08, 2012, 08:00:15 am

Please try an extended clear of the CMOS.   Unplug the power supply from the wall or motherboard, or switch it off in the back.  Then press and hold the case power on button for one minutes, then remove the CMOS battery and put a jumper on the Clear CMOS pins for 8-12 hours.  Then remove the jumper, put the battery back, turn on and connect the PSU, and then see if it works.

If it does not, then the power outage could have been caused by a spike, and might have shorted out some of your hardware.   To check for that you'll need to test your PSU, CPU, and memory on another board, or test different CPU, memory and PSU on your board.

Title: Re: GA-P55A-UD7......ACPI LED ON PC IS DEAD
Post by: Dark Mantis on March 08, 2012, 10:55:56 am

As Lsdmeasap suggested hopefully an extended clear of the CMOS will cure it but if not it does sound as if some permanent damage may have been caused by the returning power spike. I would suggest getting a surge arrestor or even a full blown UPS system for the future to give you some safety net.