I need help with choosing a power supply

HabitualWaffle · Oct 15, 2015

HI, I'm building my first gaming pc and I have no idea which power supply I should get. I have all my parts so far except for the power supply.
My mother board is an Msi z97 gaming 5 lag 1150
I have an Intel i7 4790k 4.0 ghz Devils canyon
Asus nvidia Gtx 970
A 1tb 7200 hard drive
A cd DVD combo
And 8 gb of ddr3 ram

ko888 · Oct 15, 2015

System Power Supply Requirements for a single NVIDIA Reference Design GeForce GTX 970
• NVIDIA specifies a minimum of a 500 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 35 Amps or greater
• the system power supply should also have at least two 75-Watt 6-pin PCI Express supplementary power connectors. There are some non-reference design cards that require one 75-Watt 6-pin and one 150-Watt 8-pin PCI Express supplementary power connectors or just one 150-Watt 8-pin PCI Express supplementary power connector or two 150-Watt 8-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.

What's your budget amount for the power supply unit?

Dunlop0078 · Oct 15, 2015

Budget?

HabitualWaffle · Oct 15, 2015

My budget is no more than $140

Math Geek · Oct 15, 2015

way more power than needed but with the rebate it is always a great price for a quality psu

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ NCIX US)
Total: $59.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-15 14:03 EDT-0400

even semi modular to help with cable management. plenty of power for a second 970 as well if you ever decide to go there.

Dunlop0078 · Oct 15, 2015

HabitualWaffle :

This would be my recommendation its a reliable, high quality psu and comes with a very nice 7year warranty: http://pcpartpicker.com/part/evga-power-supply-220g20550y1

ko888 · Oct 15, 2015

https://pcpartpicker.com/parts/compare/evga-power-supply-220g20550y1%2Cevga-power-supply-220g20650y1%2Cxfx-power-supply-p1550bbefx%2Cxfx-power-supply-p1650bbefx/

or

EVGA SuperNOVA P2 650W 80+ Platinum Certified Fully-Modular ATX Power Supply with a 10 Year warranty with registration.
https://pcpartpicker.com/part/evga-power-supply-220p20650x1

HabitualWaffle · Oct 15, 2015

Is it bad to have more power than I need? Because I do plan on upgrading as I go

Dark Lord of Tech · Oct 15, 2015

Extra power can't hurt if you want to upgrade in the future.

Math Geek · Oct 15, 2015

a little extra power won't hurt at all. if the upgrades you plan on are simply ssd's and fans and such, then the 550w evga g2 above is plenty of power. if you think a second gpu might be in the future, then the 750w one is better for you. 650w is too much for what you have now, yet not really enough for a second gpu so it really is a bad choice for your needs.

think hard about what upgrades you may wish to do and plan accordingly.

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I need help with choosing a power supply

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