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Is this PSU enough for my system?

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  • Overclocking
  • Power Supplies
  • Components
Last response: in Components
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April 4, 2014 9:54:46 AM

AMD FX 8-Core Black Edition FX-8350
Gigabyte 990FXA-UD5
Cooler Master Hyper 212 EVO
Sapphire Radeon R9 270X Toxic OC Edition
Corsair Vengeance 8GB 1866 MHz
WD BLACK SERIES 1TB

http://www.newegg.com/Product/ProductList.aspx?Submit=E...

I've been wanted an 800-850w PSU as I understand its needed for moderate to heavy overclocking, although I have found this one which is 750W and 80plus gold rated. would it be enough for my system plus heavy overclocking? the 850w version of this is a little out of my price range. also I want a white PSU so thats my reason for choosing this one. if anyone could recommend me a good quality 750-850w white PSU that would be good also.

More about : psu system

April 4, 2014 10:00:56 AM

The rule of thumb for choosing the right PSU is always 70% for the optimum power band efficacy. If you are choosing 750Watts, make sure you have calculated the correct amount for your current setup. In your case your current setup should not exceed 525 Watts for a 750 PSU.

Lastly, you would want to consider if SLI/Crossfire is an option in the near future as well which then the 800-850 PSU could be a possibility. Good luck!
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April 4, 2014 10:26:05 AM

so my system wont exceed 525 watts even with heavy overclocking? 750 watts is more than enough then?
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Best solution

a b K Overclocking
a c 1218 ) Power supply
April 4, 2014 2:16:55 PM

For a system using a single SAPPHIRE TOXIC R9 270X 2GB GDDR5 WITH BOOST graphics card Sapphire specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 30 Amps or greater and have at least two 75 Watt 6-pin PCI Express supplementary power connectors.

For a system using two SAPPHIRE TOXIC R9 270X 2GB GDDR5 WITH BOOST graphics cards in 2-way CrossFire mode Sapphire specifies a minimum of an 600 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 45 Amps or greater and have at least four 75 Watt 6-pin PCI Express supplementary power connectors.

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) is the most critical factor.

Overclocking of the CPU and/or GPU(s) may 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 being attempted.

An AMD FX 8-Core Black Edition FX-8350 overclocked to 5 GHz will draw somewhere around 10 Amps more from the +12V rail than when operating at its stock clock speed.

PC Power & Cooling Silencer Mk III 750W (PPCMK3S750)
• OEM: Super Flower
• maximum combined +12 Volt continuous current rating of 62 Amps
• four 150 Watt (6+2)-pin PCI Express supplementary power connectors
• semiModular Output Cables: Yes
• Haswell Compatible: Yes
• 80 PLUS GOLD Efficiency Certification
• 7 Year Limited Warranty

So the PPCMK3S750 has way more than enough capacity to handle your system configuration even with heavy overclocking.
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