820-3115 no poder, rotação gira e pára.

[iClub]

It suffered a lot of oxidation, there was a short on the PP3v3_s0 line, it was removed, but it still didn't turn on, I heated the PHC and SMC decided, it worked, I released it to the client, but the machine came back, with the defect of turning the cooler and stopping, the tensions are missing PP3v3_s0, PP3v3_s3 and PP3v3_s3; PPbus_g3h 12.60v PP3v42_g3h 3.49v SMC_PM_G2_EN: 3.45V
SMC_ADAPTER_EN: 3.29V; SMC_BATLOW_L: 3.32V; PM_RSMRST_L: 3.27V

 

[2informaticos]

Mmmmh, if worked after reflowed the SMC, you should reball it now.
This is always recommended for liquid affected boards; especially when the spill was close to SMC.

 

[iClub]

I heated the PHC and the SMC with the intention of removing the garbage from under the pads, I heated it to 200 degrees . Mas o SMC afeta a linha PP3v3_s0, s3 e s5?

Eu tive que fazer dois jumpers na linha ISNS_HS_OTHER_N e ISNS_HS_OTHER_P, porque o short fez um buraco quebrando as duas faixas

 

[2informaticos]

Corrosion can damage solders underneath SMC; not sufficient to reflow it.

Do you mean R5410 was corroded and you've bypassed it?
Noy a good idea, SMC will cannot correctly monitor CPU current consumption.

Please use english for main forum...

 

[iClub]

Sorry for the language change, I replaced the r5410 and pulled the tracks back to the u5410 pads.

 

[iClub]

After the reballing, it seems that the voltages have normalized, it's taking 5v and 3v, but spin doesn't spin, you know how to be a friend?

voltage; PPbus_g3h 12.60V; PP5v_s0 5.10V; PP3v_s0 3.32v; PP3V3_S5 3.31V; PPVCORE_S0_CPU 0V;

 

[2informaticos]

Board cannot work if no CPU VCORE present.
If you get voltage on other coils (RAM, PCH), then check R7402/03 for corrosion.

 

[iClub]

as tensões nos resistores r7402 e r7403 estão corretas. Agora as tensões PP5v_s0 e PP3v3_s0 estão ausentes novamente. Você teria outra região que possa medir para identificar qual componente está causando esse defeito?

 

[2informaticos]

Use english please, I do not understand you correctly...

 

[null]

as tensões nos resistores r7402 e r7403 estão corretas. Agora as tensões PP5v_s0 e PP3v3_s0 estão ausentes novamente. Você teria outra região que possa medir para identificar qual componente está causando esse defeito?

Voce esta escrevendo em portugues. Em grande parte, digo 99% das pessoas aqui escrevem em ingles. Se quiser ajuda, so me chamar.