can you upgrade pc 200 - 400 watt

May 26, 2011 at 11:09:07
Specs: Windows 7
can you upgrade pc powersupply from 200 watt to 400 watt

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May 26, 2011 at 11:11:52
Yes you can.

It's a good day when you learn something

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May 26, 2011 at 11:12:12
You surely can do that, if the computer is not age-old.
That's because the age-old motherboards do have other connectors for the power supply.

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May 26, 2011 at 11:38:11
I would ask why you want to do that. If this is a small form factor PC then you will have a hard time finding a 400W PSU for it. If it is just old then what is the purpose of increasing the size of the PSU.

You do understand you are talking about REPLACING the current PSU with one that has more wattage.

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May 26, 2011 at 17:52:06
To amplify response #1.

The wattage of a power supply is the amount of power that it is capable of delivering. If a computer is consuming, say, 150W and the PSU is rated at 200W then that is fine. A 400W PSU replacement will still only handle the same 150W but it is capable of more. Clearly the PSU power rating must never be lower than the maximum power drawn and you would normally rate it a little higher so that it is not running flat out.

Having a PSU with a higher wattage rating only changes "capability" so it will not damage anything.

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