Hello.
Have this Asus 290x 109-C67157-00_02 and one phase wont work. when put little load i hear "coil whining" noise. with big load card freeze whole pc.
On PWM signal of this phase i have steady 1.4V which others have 0.3V-1.6V
i measure everything and could not find problem. i replace mosfets - no change. i exchange two of 8510 ic which control mosets -no change, so there is problem with IOR controler not give godd signal. i mesure most of component aroud it and all looks good.
Any hint on this?
Have this Asus 290x 109-C67157-00_02 and one phase wont work. when put little load i hear "coil whining" noise. with big load card freeze whole pc.
On PWM signal of this phase i have steady 1.4V which others have 0.3V-1.6V
i measure everything and could not find problem. i replace mosfets - no change. i exchange two of 8510 ic which control mosets -no change, so there is problem with IOR controler not give godd signal. i mesure most of component aroud it and all looks good.
Any hint on this?