Lenovo Ideapad Y510P - no SUSP_SLP signals

[ktmmotocross]

Hello.
Have this Lenovo Ideapad Y510P that wont start, only power led after power button. have no PM_SLP signals from EC.

Any hints what to check?

I have PBTN_OUT#, PCH_RSMRST, PCH_DPWROK_R

[piernov]

Re: Lenovo Ideapad Y510P - no SUSP_SLP signals

Not even a small pulse on SLP_S5#/SLP_S4#? The SLP_ signals come from the PCH.
Check 32kHz RTC clock, SRTCRST, RTCRST, INTVRMEN, INTRUDER#, DSWVRMEN, SLP_SUS#, BATLOW#
Make sure the S5 rails are present, and the SUS rails if it has a SUS state.

[ktmmotocross]

Re: Lenovo Ideapad Y510P - no SUSP_SLP signals

boaedview cannot find me RTC resistors so i cannot check it but rtc have 2.9V

looks like it PCH because after reflow it start giving some SLP signals but after while they disapear