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Question about Power Supplies


I'm thinking of getting a new HDD for my gaming PC but at the moment I'm worried about the power usage of my Power Supply and I currently have installed 650W 80+ Gold Rated PSU. 

And these are my PC Specs:
  • Asus GeForce GTX 1070 Turbo 8192MB GDDR5 PCI-Express Graphics Card
  • Samsung 250GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive 
  • Intel Core i7-7700K 4.2GHz (Kaby Lake) Socket LGA1151 Processor - Retail
  • Corsair Vengeance LPX 16GB (2x8GB) DDR4 PC4-19200C14 2400MHz Dual Channel Kit
  • Seagate BarraCuda 1TB 7200RPM SATA 6Gb/s 64MB Cache HDD
  • Asus Prime Z270-K (Socket 1151) ATX Motherboard
  • 7.1 High Definition Audio

And I just want to make sure I don't use too much power for my 650W PSU, I know the Graphics Card takes a small amount of power etc. Can someone tell me if I should upgrade my PSU or keep my current one? If I need to upgrade it, please suggest what one I should get.

Look at this place... Fifty thousand people used to live in this city. Now it's a ghost town... I've never seen anything like it.
Your PSU should be enough, if it's really rated for 650W.
Yeah psu is fine if you plan to overclock or go skiing then you would need a bigger wattage but that's perfectly fine your system.

Barnum Designs
If you are worried, then go with another SSD instead of a HDD, SSDs are so much faster.
Since its a 650W 80+ Gold Rated PSU, it should handle your current load easily. Your Asus GeForce GTX 1070 Turbo will work with a minimum 500w PSU. As @Barnum4000 suggested, as long as you don't overclock your system your current PSU is fine.

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Question about Power Supplies492