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820-00165 Fan spinning high

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  • rzeszu
    replied
    Ok, problem solved.
    R5805 have 8 Ohm and should be 0 Ohm
    Thanks for helping.

    Leave a comment:


  • dukefawks
    replied
    With that board there is an issue on SMBUS_SMC_3, all sensors that are failing are connected to that data bus. I bet corrosion in the trackpad connector or crap under SMC.

    Leave a comment:


  • rzeszu
    replied
    RPM is ok ~6000rpm
    I worry about Wifi - shows ~40C but isn't more hot that rest of board.
    I changed it but without good results.
    Now i stuck with this repair.
    I have next similar repair but with older mac(mid 2014). Maybe I'm doing something wrong. Maybe this is cleaning problem.
    Please look ASD log



    [12/31/15 16:08:49] Temperature (THSP) -- Thunderbolt Proximity (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:50] ERROR -- 1 [Unable to read sensor] -- TEST FAILED

    [12/31/15 16:08:50] Temperature (TM0P) -- MLB Top Side (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:50] Test Passed

    [12/31/15 16:08:51] Temperature (TS2P) -- S2 Camera Proximity (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:51] ERROR -- 1 [Unable to read sensor] -- TEST FAILED

    [12/31/15 16:08:51] Temperature (TW0P) -- AirPort Proximity (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:51] ERROR -- 1 [Unable to read sensor] -- TEST FAILED

    [12/31/15 16:08:51] Temperature (Ta0P) -- Input Air Flow (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:52] Test Passed

    [12/31/15 16:08:52] Temperature (Th1H) -- Fin Stack (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:52] Test Passed

    [12/31/15 16:08:53] Temperature (Tm0P) -- Memory Proximity (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:53] ERROR -- 1 [Unable to read sensor] -- TEST FAILED

    [12/31/15 16:08:53] Temperature (Ts0P) -- Trackpad Skin (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.

    [16:08:54] ERROR -- 1 [Unable to read sensor] -- TEST FAILED

    [12/31/15 16:08:54] Voltage (VC1C) -- 1.05 S0 (test #1) - Sensor Reads Within Operating Range

    - Check to ensure that sensor reads within operating range.


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  • dukefawks
    replied
    Looks fine. Is it also seeing the fan RPM correctly?

    Leave a comment:


  • rzeszu
    replied
    Now I Have some new information from ISTAT.
    I solder old SMC
    Attached Files

    Leave a comment:


  • rzeszu
    replied
    No, its working fine. Only fan is spinning

    Leave a comment:


  • dukefawks
    replied
    Is the machine also lagging or is it running fine?

    Leave a comment:


  • rzeszu
    replied
    All temp. are fine ~24-35ËšC

    Leave a comment:


  • dukefawks
    replied
    Install iStat or some other temperature utility and see if any sensor read weird or are missing.

    Leave a comment:


  • rzeszu
    replied
    I changed SMC because of this problem.

    Leave a comment:


  • dukefawks
    replied
    Was the SMC replaced because of this issue or something else?

    Leave a comment:


  • rzeszu
    replied
    Pin 17 0,910 0,640
    pin 16 0,910 0,640

    Leave a comment:


  • dukefawks
    replied
    Pin 16 and 17 on the trackpad connector carry the data for the sensor. Inspect the connector for corrosion and measure the data lines on diode mode.

    Leave a comment:


  • rzeszu
    replied
    I tested it in working top case.
    Board has not turning on with battery and that was R7150 problem.
    Was water damaged SMC area - some pads and resistors repaired/changed.
    SMC i took from new board, number same but different processor.

    Leave a comment:


  • dukefawks
    replied
    That is pretty classic for the trackpad sensor. Where was the liquid damage and what was done to the board? Was the SMC from the exact same board?

    Leave a comment:

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