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psprom14
  • 27 months ago

what if you bought a 850w power supply and your system only needs 250-400w

does it pull more power making your house bill high?

Comments

  • 27 months ago
  • 1 point

That is their rated maximum capacity. The PSU will only draw/deliver whatever the system needs. For example, with a system needing 300w, the 850w PSU will deliver 300w.

At max the PSU can deliver 850W but power drawn from the wall would be higher due to power efficiency (probably ~950w).

does it pull more power making your house bill high?

Only if the efficiency of the PSU is less than the other PSU in comparison. Though the difference would likely be negligible.

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