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  1. #1
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    A1989 820-00850-a no power

    hello ,
    This is a T2 chip 820-00850 and there is no power all the ports are stuck on 5v. I have 3.3v okay smc supply_g3 okay and 12v ok. now my questions are
    1) since this is with a T2 chip is it servicable investing time and efforts can this board be repaired as there are too many programmable devices and all in tandem with the big daddy T2
    2) the cd3215c has black epoxy on it so has anyone replaced this chip on the same motherboard
    3) i notice the pp1v8_slp2r keeps fluctuating not stable., but no short any where nor any water damage.
    4) how do we know which ports from4 malfunctioning.
    thanks.

  2. #2
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    Re: A1989 820-00850-a no power

    T2 has lost its firmware.

    try this.

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