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As a computer technician, I buy what I think are AT and ATX power supplies that have &quot;enough&quot; wattage to handle most userss computers -- usually I get 250 - 350 watt units in case I need one for a customer.<br />
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Question is, if I put a 350 Watt power supply into a computer that was using a 170 Watt supply before it broke, will it use more power? &nbsp;The obvious answer seems &quot;yes&quot;, but, I know the computer only uses a small bit of the power coming into the system...anyone with electricity background probably knows the answer offhandedly. &nbsp;An answer with a little information would be nice. &nbsp;Thanks a lot.
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As a computer technician, I buy what I think are AT and ATX power supplies that have "enough" wattage to handle most userss computers -- usually I get 250 - 350 watt units in case I need one for a customer.

Question is, if I put a 350 Watt power supply into a computer that was using a 170 Watt supply before it broke, will it use more power?  The obvious answer seems "yes", but, I know the computer only uses a small bit of the power coming into the system...anyone with electricity background probably knows the answer offhandedly.  An answer with a little information would be nice.  Thanks a lot.

power supply electricity usage rates

A desktop computer is a personal computer designed for use at a single location due to its size and power requirements, usually by one person. The most common configuration has a case that houses the power supply, motherboard, disk storage (usually one or more hard disk drives and optical disc drives); a keyboard and mouse for input; and computer monitor and printer for output. The case may be oriented horizontally and placed atop a desk or vertically and placed underneath or beside a desk.