I have a 820-2915 that will only boot/post on battery power. No liquid damage. When adapter is used without battery the fans spin up for a few seconds then shuts down and restarts (All S3 rails cycle.) Also, will not stay powered on with HDD plugged in. (boots, HDD spins for a couple seconds then shuts down.)
PP3V42 - 3.42V
PPBUS (Battery only/ not turned on) - 12.8V
PPBUS (Battery only/ turned on) - 11.62V
PPBUS (Adapter only) - 12.56V
PPBUS Diode - .425
PPDCIN - 11.80V
PPDCIN (Turned on) - Starts at 11.80 and drains to 11.16V)
PPDCIN DIODE - .622
Genuine 85W charger.
Thanks have a good day.
PP3V42 - 3.42V
PPBUS (Battery only/ not turned on) - 12.8V
PPBUS (Battery only/ turned on) - 11.62V
PPBUS (Adapter only) - 12.56V
PPBUS Diode - .425
PPDCIN - 11.80V
PPDCIN (Turned on) - Starts at 11.80 and drains to 11.16V)
PPDCIN DIODE - .622
Genuine 85W charger.
Thanks have a good day.
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