Build Power consumption Question

bty0610 · Mar 27, 2016

I am worried that this psu isn't enough power for this build? Is 650 enough?

PCPartPicker part list: http://pcpartpicker.com/p/MvTKCJ
Price breakdown by merchant: http://pcpartpicker.com/p/MvTKCJ/by_merchant/

CPU: Intel Core i7-6700 3.4GHz Quad-Core Processor ($324.99 @ Best Buy)
CPU Cooler: Corsair H75 54.0 CFM Liquid CPU Cooler ($74.99 @ Newegg)
Motherboard: MSI H170A Gaming Pro ATX LGA1151 Motherboard ($119.99 @ Micro Center)
Memory: G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-2133 Memory ($61.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($86.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($48.85 @ OutletPC)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($295.00 @ Newegg)
Case: Fractal Design Define R5 (Black) ATX Mid Tower Case ($89.99 @ Newegg)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($59.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($15.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($86.86 @ Amazon)
Wireless Network Adapter: TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter ($36.99 @ Amazon)
Monitor: Asus VX248H 60Hz 24.0" Monitor ($139.99 @ Micro Center)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($24.99 @ Newegg)
Headphones: Creative Labs Creative Fatal1ty Headset ($19.99 @ Amazon)
Speakers: Logitech S120 2.3W 2ch Speakers ($11.99 @ SuperBiiz)
Total: $1494.58
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-03-27 14:32 EDT-0400

Archaic59 · Mar 27, 2016

650 watts is plenty of power for your specs, but you should drop the Supernova NEX for the Supernova G2, which is a higher quality model made by Super Flower, the best.

bty0610 · Mar 27, 2016

Archaic59 :

Does it cost more because I'm on a budget build

Archaic59 · Mar 27, 2016

bty0610 :

Yes, it costs more but the NEX is not a very good power supply.

bty0610 · Mar 27, 2016

Archaic59 :

bty0610 :

But it has a gold rating, I'm confused. His is it not good when it's a gold rating?
Yes, it costs more but the NEX is not a very good power supply.

Archaic59 · Mar 27, 2016

Gold rating has zero to do with quality of the unit. It's an efficiency rating that tells how much power it has to pull from the wall to convert to 12volt DC. So, a gold unit uses a little bit less electricity than a bronze unit does, but it has nothing to do with quality of the parts inside it. Plenty of gold units out there that are not so good (Supernova NEX) and plenty of bronze units that are high quality (Supernova B2).

bty0610 · Mar 27, 2016

Archaic59 :

Alright, could you link me to the psu you were talking about

Archaic59 · Mar 27, 2016

Either of these is better than the NEX-

http://pcpartpicker.com/parts/compare/evga-power-supply-110b20750vr,evga-power-supply-220g20650y1/

Mint__ · Mar 27, 2016

Switching power supplies (those having no power transformer) are very efficient. Properly designed, they can operate on an input voltage of around 105 volts to 250 volts at either 50 or 60 cycles depending on what part of the world. By the same token, they draw only the amount of energy needed to run your system less a small fraction for heat loses. They are also designed to withstand a certain amount of surge current as anything with a motor draws extra current during startup. There are websites where you can list and tally up all your devices to see what the maximum current draw might be. Note that the power supply rating is the maximum rating and not necessarily what energy is actually being used at any moment. Using a VOM, you can measure the current draw on the primary side then multiply the current times the voltage to find wattage. Or, you can buy a "Kill A Watt" meter and plug your computer into that device to see how close to the PSU maximum rating at any given moment. Google Kill A Watt.

bty0610 · Mar 27, 2016

Archaic59 :

Thank you so much! I picked the bronze one you had selected. It's a better price and a lot more reviews!

Archaic59 · Mar 27, 2016

bty0610 :

BTW, the rest of your build looks very good. Cheers.

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