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420r Power-up issue - will only come up when keyboard power buttoncontinually held down.

Discussion in 'Sun Hardware' started by David Tudor, Jan 11, 2012.

  1. David Tudor

    David Tudor Guest

    My Sun 420r has a fault that I believe lays somewhere in the main
    board. When I attempt to power it up using the power button on the
    server it will power up for about 30 to 40 seconds before turning
    itself off.
    However if I bring the server up using the keyboard power button and
    keep the button depressed then the system comes fully up and stays up
    right up until the point were I take my finger off the power key
    causing it to power off again less than 5 seconds after.

    Can anyone explain this behavior? I can only think that by holding the
    key down I am blocking a power down signal?

    I have yet to run any diagnostics on the server beyond "test-all",
    this is new territory for me so I intend to spend a couple of hours
    this evening reading the diagnostics section of the 420r service
    manual to find out what test options I have.

    Thank you for reading and any illumination on this topic would be

    David Tudor, Jan 11, 2012
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