M5A99FX Pro R2.0 mobo and CPU LED stays on

tazmo8448

Distinguished
Dec 23, 2011
232
2
18,695
It will not P.O.S.T. all fans run and ATXs are plugged in securely. Have cleared CMOS. I have read posts where it was advised to turn the TPU and EPU switches off but can not locate those switches online or using the manual they only show where the processor for it (TPU) is and only mention the EPU not showing its location on the mobo.
Am using an FX-6120 6 core to test and Radeon HD 6870. Everything seems to work properly but with the CPU in error can not 'see' anything as it will not POST. The KB and Mouse do not power up either.

Anybody who has been there done that I'm all ears.
 

tazmo8448

Distinguished
Dec 23, 2011
232
2
18,695
Called Asus and found the FX-6120 is oddly not supported the 6100 is but not this particular CPU even though it is AM3+. they should list that in the manual though it is on their site under support for that mobo. Live and learn.