Toshiba L50-B dead MBO

[on/off]

Re: Toshiba L50-B dead MBO

Could be bad EC, could be random stuff on the board, but this is confusing as you have all rails for S0 state but the BIOS doesn't have 3.3V

Could be MAIND signal premature? while S5_ON signal not rise up yet.....

I'd recommend taking a look at Quanta BDBD schematics which should have much more similarity than Compal LA-B301P

Good suggestion:

https://cdn.badcaps-static.com/pdfs/...30afe7247e.pdf

Q11 is marked with ADLV 14, don't know if its AO3404.

Seem marking give me confuse..

https://cdn.badcaps-static.com/pdfs/...80e1e11244.pdf

[Techtiger]

Re: Toshiba L50-B dead MBO

[QUOTE=piernov;877968]RSMRST# pin on the EC can be different from board to board as it's a simple GPIO driven in software by the EC firmware. If you get CPU VCore and RAM voltage you're in a S0 state, well beyond RSMRST# (which would prevent entering an S4 state)

doe's corrupted EC firmware cause BIOS to have less Voltage ?

[Papapitbull]

Re: Toshiba L50-B dead MBO

I hope this could help

[fransuzadam]

Re: Toshiba L50-B dead MBO

schema : duh:

[tmkbc]

Re: Toshiba L50-B dead MBO

schematics which should have much more similarity

[lapfix]

Re: Toshiba L50-B dead MBO

Really a waste of time..

same behaviour , 0.650 amp when plug in , all voltage are present...but 0.732v at pin 1/8 of bios...when i try to make off just the amp will be 0.570...and nothing else ....from S0 to S5.
i think without proper schematics and BRD we can't go further.