Advice on wattage of PSU

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TomAtkins123

Reputable
May 26, 2014
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I'm looking to upgrade my GTX 560 Ti to a GTX 680 and I was unsure if my 550w PSU would provide enough power for my computer.
I have looked at a number of websites which has given me a variety of different answers as to how much wattage i would require WITH the GTX 680, the results ranging from 550w being a minimum to 400w being a minimum.

Other information:
CPU - i5-3570k @ 3.4ghz
RAM: DDR3 8gb
1 HDD
1 CD/DVD reader
 
Solution
ko888


For a system using a single GeForce GTX 680 graphics card NVIDIA specifies a minimum of a 550 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 38 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors or one 6-pin and one 8-pin PCI Express supplementary power connectors depending on brand and model of the graphics card.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on...
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ko888

ko888

Titan
Feb 18, 2009
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For a system using a single GeForce GTX 680 graphics card NVIDIA specifies a minimum of a 550 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 38 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors or one 6-pin and one 8-pin PCI Express supplementary power connectors depending on brand and model of the graphics card.

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.

Thermaltake Smart M550W, P/N: SP-550M, Model: SP-550AH3CCB
• OEM: CWT (Channel Well Technology)
• maximum combined +12 Volt continuous current rating of 42 Amps
• one 6-pin and one (6+2)-pin PCI Express supplementary power connectors
• Semi-Modular Output Cables: Yes
• Official Intel Haswell Compliance: No
• 80 PLUS BRONZE Efficiency Certification
• 3 Year Limited Warranty

It meets the requirements.
 
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