How much does energy does a computer run on?

  1. #1
    C0oLl2iCeF0o is offline Elite Member

    How much does energy does a computer run on?

    Not including the monitor, my comp is using 115 Volts of energy. How much is that equivalent to in everyday objects? I heard it was less than 1 light bulb..

  2. #2
    DJNafey is offline UK site moderator
    It's the wattage that is the measurement of how much energy it's using up, i.e. how much your power company are charging you for running your PC.

    Your power supply in your PC should have a power rating written on it - something like 350 watts (or maybe higher) in a new P4 system.

    By comparison, a pretty dim home light bulb will be 40 watts or 60 watts (in the UK at least), whereas a bright home light bulb will probably be 100 watts.

    A small back garden floodlight could consume about the same power as your PC if its power supply is working at its limit.

    If you're asking because you're working out whether you should leave your PC running constantly, I would recommend looking at the Power options in Control Panel - it will be expensive if you don't get your system to switch off the monitor or hard disk, etc. or go into standby / suspend mode when you're away from it for a long time.

    Hoep that helps

  3. #3
    C0oLl2iCeF0o is offline Elite Member
    i see, my comp just takes a little more than a light bulb, thanks

  4. #4
    HippyWarlock is offline Elite Member
    Addendum:

    The PSU rating is a maximum delivery, the only time your PC will approach anywhere near that is at Boot-up as the drives on discs, fans etc draw heavily to overcome inertia.

  5. #5
    DJNafey is offline UK site moderator
    Thanks for clarifying that Hippy Warlock

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