Berkeley CSUA MOTD:Entry 38093
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2025/07/12 [General] UID:1000 Activity:popular
7/12    

2005/6/13-14 [Computer/Networking] UID:38093 Activity:nil
6/12    Would a 5.4V rated power adapter be bad for a device (actually a
        dlink router) rated for using 5v input?  The current limit
        is fine and it works for the time being, but I am wondering if it
        might shorten the life of the router or blow it out all of a sudden.
        I am asking this because I am travelling to a 220v country and have a
        hard time finding an appropriate 5v adapter.
        \_ some of the guys told me the tolerance for computer electronics
           is +/-5%.  Anything deviates from that 5% is risky, especially
           voltage.
           \_ Yep, +/- 5%.  You worry about speed on the undervoltage side,
              heat on the overvoltage side, and bad design practices on both
              sides.  That said, an additional 3% will probably just disappear
              in the margins anyway and will not have any real effect on the
              preformance or long-term reliability of your device.
2025/07/12 [General] UID:1000 Activity:popular
7/12    

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