G62 PM_A_HPC_S MV_MB_V1 on & off

[rookieme]

I have a G62 PM_A_HPC_S MV_MB_V1 that powers on and off soon after.
I found out that EC_PWRBTN# was falling from 3,3V to 0 by itself and not when I was pressing the power button [also not always going to 0 when I pressed power button] - compared with a know good board it should be always 3,3V and always 0 when power button is pressed.
I started with bios reflash and replacing kbc - now all it does is a infinitive looping of on and off [by itself]
Any guess?

[kamel84]

Re: G62 PM_A_HPC_S MV_MB_V1 on & off

Thank you

[fyaagoub]

Re: G62 PM_A_HPC_S MV_MB_V1 on & off

Thank you

[dgeorgoul]

Re: G62 PM_A_HPC_S MV_MB_V1 on & off

Thank you same problem

[ktmmotocross]

Re: G62 PM_A_HPC_S MV_MB_V1 on & off

RS880+ATI GPU worst combination

try to reflow. first NB than GPU, but first check for short

[mevlut_316]

Re: G62 PM_A_HPC_S MV_MB_V1 on & off

Thank you