Asus m5a99fx pro r2.0 CPU LED on only when computer is OFF.

h47f4c3

Reputable
Feb 6, 2016
1
0
4,510
So after installation of a new GPU, whenever I turn my computer off the CPU LED lights up and stays on, but will start back up normally. When booting, light blinks once then goes off. (all the other threads I have found related to cpu led have no post symptoms) I tried installing my old gpus and no change. Tried re-installing memory modules and clearing CMOS. No changes..
The only other issue I have found is I get random stuttering (this could be just moving mouse on desktop or heavy gaming). Not sure if related but did start at about the same time.

Specs are as follows:
Mobo: Asus m5a99fx Pro r2.0
CPU: amd FX8350
Mem: 16GB gskill ripsaw (4x4)
PSU: Thermaltake TR2 700W
GPU: Sapphire R9 390 Nitro (Recently replaced 2x HD6870 DD in xfire)
SSD: Corsair Force GT 180GB
HDD: Hitachi 2TB

Any help is appreciated. Thanks guys!
 

shazroh73

Commendable
Apr 14, 2016
1
0
1,510
I had the same problem and after lot's of searching. It has to do with the asus erp mode. Enable this feature in the bios, under the advanced setting and it should fix your problem. Mine was set to disable by default. I was close to returning this board but after finding this fix, I'm glad I didn't. The erp feature has something to do with charging devices when pc is shut off.