650 Watt Power Supply for new build

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askronnizzle

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Nov 16, 2017
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Hey guys, I’m building my first system, have a i7-4790k installed on a ASUS Z97-PRO motherboard and a Gigabyte GeForce GTX 960 2GB graphics card (all parts donated to me by an old friend). I’ve been recommended to a 650 watt PSU. Does that sound pretty normal? Too high or low? I’m not going to pretend I know a ton, so all and any feedback would be greatly appreciated, thanks!
 
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DRagor

DRagor

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Jan 23, 2017
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Assuming you have a normal rig there (2-3 drives, 2-4 sticks of ram), 450 W would be plenty if no OC, with OC I would go for 550 W, but that's about it. 650 W is too much. Of course, talking about quality units, that are real 450-550 W, not some brick that says 750 W on label while in reality is 300 W max.
 
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askronnizzle

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Nov 16, 2017
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I’m planning on installing a 120 SSD and a 1 or 2 TB hard drive, and 16GB RAM. I figure I can always upgrade RAM if I need to later, though I think that’s a good start. Is there any advantage/disadvantage to having something like a 650 or 750?
 
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jankerson

jankerson

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Sep 10, 2006
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Not really with your system.

Now if you plan on building a new higher end machine later then it might be good to invest in a good quality 650W PSU and you can transfer the PSU to the new machine.

Like this one.

PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - FOCUS Plus Gold 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($83.99 @ SuperBiiz)
Total: $83.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-16 11:39 EST-0500
 
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theyeti87

theyeti87

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Sep 15, 2012
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If you want more headroom on your power supply than 550W, there is nothing wrong with choosing a 650 or 750 watt supply.

I run my system with 2 RAM sticks, 2 SATA SSD, 1 PCIe SSD, 2 HDD, 1 SATA DVD drive and a GTX 1060 6GB off a 650 watt EVGA Supernova P2.
 
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askronnizzle

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Nov 16, 2017
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Yeah, eventually I will want to, but I figure this setup will be a step in the right direction. That seems like a good option to me, and the price ain’t too bad either! I appreciate the help!
 
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