Power Supply Wattage and Electricity Use

VFN

Member
First, can anybody give me an educated guess on my Pc's power supply wattage based on its specs? Second, how does power supply wattage translate into electricity use and does a greater wattage always use more power than a smaller regardless of what the PC is doing? Are PCs Energy Star rated? That doesn't seem to be the case.

Thanks.
 

My Computer

System One

  • Operating System
    Vista Home Premium x64
    Manufacturer/Model
    Dell Inspiron 546
    CPU
    Sempron LE-1300
    Memory
    2GB DDR SDRAM 800MHZ-2X1GB DIM M
    Graphics Card(s)
    Integrated ATI Radeon HD3200
    Sound Card
    VIA High Definition Audio
    Monitor(s) Displays
    Samsung 32" HDTV
    Screen Resolution
    1366 x 768
    Hard Drives
    320GB NCQ Serial ATA (7200 RPM) w/ 16MB DataBurst Cache
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