New gaming build, PSU concerns

So, this is my first build-it-myself desktop and I have a question regarding the PSU.

Here is the setup so far. Note that all parts have been ordered and are on their way:

CPU Intel Core i7-3770K 3.5GHz Quad-Core Processor
CPU Cooler Zalman CNPS9900MAX-B CPU Cooler
Motherboard Asus SABERTOOTH Z77 ATX LGA1155 Motherboard
Memory G.Skill Ripjaws Series 16GB (4 x 4GB) DDR3-1600 Memory
Storage Samsung 830 Series 256GB 2.5" Solid State Disk
Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive
Kingston HyperX 3K 120GB 2.5" Solid State Disk
Video Card EVGA GeForce GTX 670 2GB Video Card -
Case Cooler Master HAF 932 Advanced ATX Full Tower Case
Power Supply Cooler Master Silent Pro M 1000W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply
Monitor Asus VS247H-P 23.6" Monitor
Operating System Microsoft Windows 7 Ultimate Full (32/64-bit)

After doing a bit more research with the GPU, I decided to cancel the 1000W PSU and order the 850W version instead:

My GPU requires 550W (48A) and the GPU puts out 850W 80A single rail 12V. I intend on adding another 670 down the road, will this PSU be ample for that SLI configuration without having to upgrade it?

Also, I want to purchase a UPS. I read that even though the PSU states a wattage, that it doesn't necessarily draw that much. What specifications would be good to look for for a UPS with the 850W PSU? Thanks!
5 answers Last reply
More about gaming build concerns
  1. It will be fine nVidia itself recommend 500W for a single 670. Add 170W for SLI & recommended is 670W.

    For testing conducted for SLI 670, the resulting system consumption for SLI is 433W of which 293W are attributed to the gpu cards.

    If you use this psu calculator considering your components, the result is 664W (overclocked processor & used 680x2 to simulate gpu OC:

    All points out to 850W being more than enough.
  2. Awesome, thank you for the reply. I used the PSU calculator earlier which returned a much lower wattage consumption than anticipated, so I just wanted to make sure.

    Do you have any recommendations on specs for a UPS?
  3. Nice build, just my 2 cents:

    Intel core i5 3570K is more than enough for any game.

    I think that Gigabyte 670 OC or MSI 670 PE are better GTX 670 choices. However, with the new AMD drivers and the price cut of AMD GPUs, HD 7970 is a very attractive alternative on the same budget, performing better than 670 with higher levels of AA. Unless you want to stay with nVidia for specific reasons, you should opt for Sapphire 7970 OC or Sapphire 7970 Vapor-X.

    Your PSU is fine, however my choice is Corsair GS 800W.

    Hope I helped!
  4. one thing i noticed on your build is you choosing the 1600mhz memory
    your better with 1333 and its cheaper
    belive me that 1600 is useless for gaming
  5. I suppose I should have noted that this will also be used for a home business as well so there are benefits to having the i7 over the i5. As far as choosing nVidia, it was just a matter of comfort. I've always owned nVidia and am familiar with their interface and overclocking.

    I'm looking at a UPS now, finding conflicting comments regarding what specs will be good. Cyberpower has a 1350VA 810W and a 1500VA 900W UPS, however these don't seem to be "Pure Sine Wave".

    Then I found this one:
    and this one:

    Anybody have any suggestions for a UPS for this build? It's going to support the tower, monitor, Samsung ML2165W laser printer, HP D100 Envy printer, and Logitech Z623.
Ask a new question

Read More

Power Supplies Build Components