820-3332-A A1398

pipsystems

Member
Hi, I have a board with no power, Draws 16-17mA

ppbus_g3h = 12.6V
U7201:
3v3s5_en =3.4V
pp5v_s5 = 5V
p5vp3v3_vref2 = 2V
3v3s5_comp2 = 1.8V
P3v3s5_VFB = 1.1V

It seems all the 3.3 Rails are coming up short, am I right?
 

pipsystems

Member
3.38 s5_pwrgd
3.41 pm_dsw_pwrgd
3.33 pm_slp_sus_l
3.3 rtc_reset_l
5mV ppvout_g3_pch
3.3 ppvrtc_g3h
465mV sysclk_clk32k_rtc
 

pipsystems

Member
I did just try to plug in the bord again, and it’s constantly boot looping with the battery connected. The fans spin and goes from 15mA to 1Amp over and over. This is without the side IO board plugged in. I don't have another known good battery to test, could it just be the battery?
 
Last edited:

2informaticos

Administrator
Staff member
"all RTC signals"
Read the "How To collection" thread, for the future.
If board tries to start now, RTC signals should be good however.

You had missing 3V3_SUS at U7930 before; can you check it again now?
 

pipsystems

Member
Sorry, I just went in board view and measured anything that had RTC in it.
3v3sus is present when it tries to turn on.
 
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