32ME303V/F7 BA4AFPG0201 1 Type F or G

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  • RRice25541
    Member
    • Nov 2015
    • 47
    • USA
    #1

    32ME303V/F7 BA4AFPG0201 1 Type F or G

    ok, So I've got this PS/MB all in 1 PCB on the bench and I'm stumped,
    With only the AC power cord hooked to the PCB and monitoring the 21V rail and monitoring the 13V rail..
    These voltages come up for less than 30 seconds and then they both drop.
    The 21V drops to about 12V and the 13V drops to about 8V.
    they stay this way as long as the power cord is plugged in,,If i unplug the power cord, after about 3 sec or so the voltages return to there 21V and 13V until the main cap is drained at which point hey all drop to there respected 0V condition.
    So my Question is.. with nothing else other than the power cord hooked to this PCB is this normal behavior?
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