Berkeley CSUA MOTD:Entry 32301
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2025/05/24 [General] UID:1000 Activity:popular
5/24    

2004/7/15-16 [Computer/SW/OS/Linux, Computer/HW/Drives] UID:32301 Activity:moderate
7/15    I have a FireWire IDE enclosure. If I have static on my body and touch
        the enclosure while it is running (zap), it resets the drive
        (click), and causes linux kernel panic. I assume that data would be
        lost in such a sitation.  Is this normal behavior for an
        ennclosure?
        \_ Is your power supply connected to a true ground?  Or one of those
           screw-on plugs for older outlets without a ground?
           \_ The computer is plugged into a three prong power strip, which
              is plugged into a 3 prong recepticle in the wall.  I assumed
              that the wall plug was grounded (I will test it).  The power
              supply for the firewire enclosure only has 2 prongs.  I think
              that the enclosure is grounded via the FW cable.  Also, the
              aluminium housing of the enclosure is in direct contact with
              the metal on top of the disk drive.  Does static arc between
              a charged human and a grounded metal? This is the enclosure:
              http://coolmaxusa.com/cd-309.html
              \_ Static will arc between any 2 objects that have a different
                 charge level.  Since 'grounded' is defined as having no charge
                 you can spark on grounded metal if you build up any charge.
                 Ideally, your enclosure should be grounded.  If it is not
                 grounded and you spark on it, the current will flow into any
                 parts connected to the case, including delicate electronics.
                 \_ It's worth pointing out that the human body can have
                    multiple kilovolts on it pretty easily, particularly
                    in dry weather.
2025/05/24 [General] UID:1000 Activity:popular
5/24    

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Cache (770 bytes)
coolmaxusa.com/cd-309.html
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