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Looking for a good psu (modular preferably) under $100

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January 17, 2013 3:31:32 PM

Hi. I'm looking for recommendations on a good psu under $100.
Here are the ones im looking at now
http://www.newegg.com/Product/Produc...82E16817182261
http://www.newegg.com/Product/Produc...82E16817703035
http://www.newegg.com/Product/Produc...82E16817151095

My computer is an old dell xps 7100, phenom 830 x4, and I'm going to upgrade it and put in a gtx560 ti or a 660, along with upgrading the psu and adding a ssd.

The power consumption will probably be like 3-400 (guessing, maybe more idk), so I'd assume I'll need 400-500w psu? Are these ones good?

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a c 1194 ) Power supply
January 17, 2013 5:59:09 PM

For a system using a single GeForce GTX 560 Ti graphics card NVIDIA specifies a minimum of a 500 Watt or greater power supply that has a maximum combined +12 Volt continuous current rating of 30 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

For a system using a single GeForce GTX 660 (non-Ti) graphics card NVIDIA specifies a minimum of a 450 Watt or greater power supply that has a maximum combined +12 Volt continuous current rating of 24 Amps or greater and that has at least one 6-pin PCI Express supplementary power connector.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) will require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock you are trying to achieve.

You may find power supplies on the market that supply more than enough Wattage to run the system. However, some of them lack Sufficient Amperage capacity on the critical +12 Volt rail, which is necessary to properly power the critical components in the system (i.e. CPU and GPUs). This is the reason why graphics card manufacturers may overstate the power supply wattage, usually by at least 50 Watts, in an attempt to take into account some of those power supplies that have the weaker +12 Volt rail(s).

The Rosewill CAPSTONE Series 450 Watt Modular Power Supply (CAPSTONE-450-M), with its maximum combined +12 Volt continuous current rating of 37 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single GeForce GTX 560 Ti or GeForce GTX 660 graphics card. This power supply model uses Super Flower as its OEM.

The PC Power and Cooling Silencer Mk III Series 500W Modular Power Supply (PPCMK3S500), with its maximum combined +12 Volt continuous current rating of 38 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single GeForce GTX 560 Ti or GeForce GTX 660 graphics card. This power supply model uses SeaSonic as its OEM.

The SeaSonic M12II Bronze Series 620W (SS-620GM), with its maximum combined +12 Volt continuous current rating of 48 Amps and with one 6-pin and one (6+2)-pin PCI Express supplementary power connectors, is way more than sufficient to power your system configuration with a single GeForce GTX 560 Ti or GeForce GTX 660 graphics card.

All three models are decent power supplies.
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January 17, 2013 6:22:28 PM

Thanks. Someone on another thread (I asked this question on another site also) said that the psu built into my computer should actually be fine, since it is the same one used to supply a different config of my computer (Xps7100) with a 6 core phenom black and a 5870 (i believe was the name, maybe another 5 series one), which he said used way more power than either the 660 or the 560 ti, so i would be fine. They also said that the dell motherboard that was built into it uses a different power connector (though i could find an adapter possibly) so I shouldn't change case or upgrade psu. I guess I'll just be getting a new gpu then. Thanks for the answers though.
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January 17, 2013 6:22:35 PM

Best answer selected by qzyxya.
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