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Can I ask a stupid question?

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  • Can I ask a stupid question?

    Is -5v the same as GND? What about when a schematic says 0v? I would like to use a floppy drive power connector to power an LCD and it's pinout is as follows:

    +12v|GND|GND|+5v

  • #2
    -5V is not the same as Gnd(Ground)

    Gnd is the same as 0V

    Get the power for the LCD from the +5V(Red wire) and either Gnd connection (black wires)

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    • #3
      Where would I get -5v if I needed it?

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      • #4
        The only place to get -5V is from the motherboard connector. On the motherboard connector there is both -5V and -12V. Check the side of the power supply to see what colour wire is the -5V and use a multimeter to verify it.

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        • #5
          I don't think I'll really need it. It's just that alot of the schematics I've seen seem to use ground, -5v and 0v interchangeably.

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