Can this PSU Handle my system>

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Frederico Vilela Curti

Honorable
May 24, 2013
4
0
10,510
Hello everyone, i'm from Brazil and hardware products here are really expensive. I've found a great deal on a OCZ ZT 650W PSU, and i'd like to know if it is sufficient to power my system that is:

- Intel core i5 3570K (not planning to overclock it yet)

- 2x MSI GeForce GTX 660 Twin Frozr III in SLI (non-ti) (These only require 1 pci-e 6 pin connector each)

- 8GB corsair vengeance DDR3 1600Mhz

- 1TB Caviar Black 7200rpm sata3

-MSI Z77A-G45 GAMING Motherboard

- 3 case fans + stock cpu cooler

Thank you very much, any help is appreciated. Please be optimistic about this PSU as it is the only attractive price i could find (otherwise im taking my dad crazy)
 
Solution
ko888
For a system using two GeForce GTX 660 (non-Ti) graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 36 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

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

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings...
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aredflyingbird

aredflyingbird

Honorable
Dec 3, 2012
537
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11,160


Yes it's more than enough. Your system at load will probably pull around at 400 watts. Have fun!
 
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Ramzzz2936

Honorable
Nov 25, 2012
163
0
10,690
even a 550w would be enough go with it bro
and if u want to calculate the power consumption again just go to this site=http://www.thermaltake.outervision.com/Power
if it says power supply recommended 520 or 530 w than go with a 600 w one not a 550w always leave a little room
 
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ko888

ko888

Titan
Feb 18, 2009
16,708
41
84,990
For a system using two GeForce GTX 660 (non-Ti) graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 36 Amps or greater and that has at least two 6-pin PCI Express supplementary power connectors.

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

The OCZ ZT Series 650W (OCZ-ZT650W), with its maximum combined +12 Volt continuous current rating of 54 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is way more than sufficient to power your system configuration with two GeForce GTX 660 (non-Ti) graphics cards in 2-way SLI mode. There is ample spare capacity to handle any overclocking of the CPU and GPUs.
 
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