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READ BEFORE REGISTERING SO YOUR ACCOUNT WORKS

In order for your account to be activated INSTANTLY, your PayPal email MUST MATCH THE EMAIL YOU USE TO REGISTER YOUR ACCOUNT ON THIS FORUM!! If your PAYPAL email address differs from your FORUM email address, your account will have to be activated MANUALLY when a customer service agent gets around to it.

I realize this sucks, and I do apologize.
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3437 VSS PRAM Block is Messed Up

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  • 3437 VSS PRAM Block is Messed Up

    Quarter Fan Spin in Loop

    PPBUS_G3H: 8.59V
    PP3V42: 3.401V
    PPRTC_G3H: 3.310V
    PP5V_S5: 4.994V
    PP3V_S5: 3.310V
    S4 to S0 rails, Pin 3 of U1950 pulsing

    SMC_ADAPTER_EN : 3.366V
    PM_BATLOW_L : 3.305V
    PM_DSW_PWRGD: 3.398V
    SMC_PM_G2_EN: 3.396V

    Checked all SPI Bus Series Termination traces and resistors
    Put flux and heated SMC and SPI

    When I connect the Medusa it displays "VSS PRAM Block is Messed Up"
    Replaced U6100 and tried without reprogramming and cleaning anything: Board Starts S0 state OK but No Chime and backlight/Display
    Write Spi Rom, cleaned ME region, Fixed Fsys Crc Serial, cleaned Pram: still showing same Pram missed up message and fan is not Spining.
    When I connect the Medusa to the board, it starts.

    Did you ever seen this message on the medusa?


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