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Question with PSU

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2 years ago#1
If I have 500w PSU powering machine that only need 400w, does the PSU draw the whole 500w of electricity, leaving 100w power wasted, or does it only draw 400w?
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"The heads of peasants are much better as footballs."
~Ningishzida
2 years ago#2
It'll draw what is needed.
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2 years ago#3
ihumpmypillow89 posted...
It'll draw what is needed.


yep
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Corsair 500r ~ P8Z68-V Pro ~ i5 2500k ~ Hyper 212+ ~ Corsair 2x4gb ~ TX750w v2 ~ 560 Ti ~ F3 1TB ~ Crucial M4 128GB ~ Xonar DG ~ Tt Meka G1 ~ Asus PA248Q
2 years ago#4
I see, so I don't need to worry about buying PSU too big for my not so powerful PC
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"The heads of peasants are much better as footballs."
~Ningishzida
2 years ago#5
It is not 400w either actually. The power bill you will feel also depends on the PSU's efficiency, just see if it has 80 Plus tag on it.
2 years ago#6
What is your rig, btw?
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MSI 660 GeForce 2GB | i5 3570K | AsRock Z77 Pro3 | Seagate Barracuda 500GB | Ballistix 8GB | Corsair CX430
2 years ago#7
Joke topic?
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