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PSU selection - a dilemma!

Clannagh
  • 74 months ago

Hi,

I am having a dilemma with my PSU. I've managed to pick out everything else, but the PSU is still the one item that mystifies me.

I know I'm looking for a fully modular one, as it helps with tidying the cables. My build says it has a draw of 442W and I'd like a bit extra in case I decide to expand further and/or overclock so I'm assuming I need a 650W+? Or a 750W+? My PC is on every day, and probably averages 7-8hrs a day over the week in terms of usage.

Here is my build currently: PCPartPicker part list

Type Item Price
CPU Intel Core i5-4670K 3.4GHz Quad-Core Processor £172.11 @ Amazon UK
CPU Cooler Corsair H100i 77.0 CFM Liquid CPU Cooler £86.50 @ Amazon UK
Motherboard MSI Z87-G45 Gaming ATX LGA1150 Motherboard £109.90
Memory G.Skill Ares Series 16GB (2 x 8GB) DDR3-1600 Memory £126.35 @ Amazon UK
Storage Samsung 840 Pro Series 128GB 2.5" Solid State Disk £89.29 @ Amazon UK
Storage Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive £63.99 @ Amazon UK
Video Card MSI GeForce GTX 770 2GB Video Card £248.12 @ Scan.co.uk
Wireless Network Adapter TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter £25.98 @ Amazon UK
Case Fractal Design Define R4 w/Window (Black Pearl) ATX Mid Tower Case £79.99 @ Amazon UK
Optical Drive LG GH24NSB0 DVD/CD Writer £14.89 @ Amazon UK
Operating System Microsoft Windows 8 (OEM) (64-bit) £71.94
Total
Prices include shipping, taxes, and discounts when available. £1089.06
Generated by PCPartPicker 2014-02-14 04:54 GMT+0000

Any help on this is appreciated. :)

Comments

  • 74 months ago
  • 2 points

You could go with a Corsair RM550 which is fully modular and a wonderful PSU or you could go with the Corsair CX600 which is semi-modular, plenty powerful and also fairly reputable. Other brands are available as well but I am not nearly as familiar with them personally. You really only need 550 watts but you can go higher if you think you will add another GTX 770.

  • 74 months ago
  • 2 points

You'd be fine with a 550-600W power supply. That case has fairly decent cable management options so a fully modular won't really be necessary either. Also, the saved electrical costs of an 80+ Gold or platinum won't make up the extra cost. Taking all that into account, I'd get something like this. I wouldn't recommend getting corsair's cx series as they have a pretty mixed reputation

  • 74 months ago
  • 1 point

Calculator that permits factoring in capacitor aging and overclocking...

  • 74 months ago
  • 1 point

PSU are very efficient so going a bit higher than is required, is usually recommended. That will put less stress and have longer longevity on that component.

I wouldn't way overshoot it with a 1000w or even a 850w. But around 700w would be ideal, especially since your doing overclocking from the looks of it with the "K" cpu and the H100i cooler.

(opinion alert) My favorite high end modular psu is the Seasonic Hybrid fan (only turns on when needed, which is almost never). http://www.newegg.com/Product/Product.aspx?Item=N82E16817151120

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