650W or 750w psu?

peti446

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Oct 31, 2014
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Hi,
I Have an Intel I7 2600 (3.4Ghz), 8Gb DDR3 Ram (2x 4GB DDR3), GTX 750Ti, an 7200rpm sata Hard drive and 8 usb port.
So is 650W enough for my pc or do I need to aim for a 750W psu (Both from the Corsair RM serie 80 Plus gold)?
Thx for all!
 
A 300 Watt power supply unit is sufficient for that build.

System Power Supply Requirements for a single GeForce GTX 750 Ti
NVIDIA specifies a minimum of a 300 Watt or greater system power supply. (Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.)
the system power supply must also have a maximum combined +12 Volt continuous current rating of 20 Amps or greater
the system power supply should also have at least one 75-Watt 6-pin PCI Express supplementary power connector for some of the non-reference design cards (e.g. ASUS GTX 750 Ti OC 2 GB [GTX750TI-OC-2GD5], EVGA GeForce GTX 750 Ti FTW w/ EVGA ACX Cooling [02G-P4-3757-KR]).

Total Power Supply Wattage is NOT the crucial factor in determining power supply adequacy!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.
 

peti446

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Oct 31, 2014
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Hi,
Thx for all the answers!
I was looking and find this one EVGA 500B 500W Power Supply (https://pcpartpicker.com/part/evga-power-supply-100b10500kr) would that be ok this one has 40A on a single rail?¿ or do i need 550W
 

Sandstorm3000

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That'll do, but i would recommend the XFX 550W unit over the EVGA unit, because XFX has a better reputation at making PSU's.
 

peti446

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Another quick question:
I have MSI B75MA-E33 B75 Socket 1155 VGA HDMI 8 Channel Audio Micro-ATX Motherboard as moderboard nad it says that it need 4-pin ATX 12V power connector, for example the Corsair CXM 500W Hybrid Modular Power Supply comes with a 8pin CPU +12V so it would not fit in the board no? (I will need to look for a 4pin or 4+4pin right ?)
Thx for all the help!
 

Vic 40

Polypheme
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