Hello,
I have a motherboard from an HP laptop: AHL50/ABL52 LA-C701P. Idle consumption is 35 mA; when the power button is pressed, the consumption goes up to 85 mA and stays there for about 15 seconds, then returns to 35 mA at idle.
First observation: the UEFI chip is not powered (MX25L6473E). I've checked the schematic; the +3V_PCH seems to come from two MOSFETs, 2N7002 and AO3413L. However, I don't have either +3VALW or PCH_PWR-EN present. The PCH_PWR-EN comes from the EC (KB9022QD). I've tested the +3VALW_EC on a few pins and I have 3.3V on pins 22, 32, 47, 97, 98, etc....
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