PSU help?

Can somebody look at this current pc build that i am going to be buying soon and tell me if i need a better psu or not? I Have looked at reviews for this psu and on newegg about 75 % gave it 5 star and about 10% 4. Some people said it was great but some said it wasn't. This is my first time building and im really worried about choosing a bad psu.. :/
Build:

CPU: Intel Core i5-2500K 3.3GHz Quad-Core Processor  
Motherboard: ASRock Z68 Extreme3 Gen3 ATX  LGA1155 Motherboard 
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1333 Memory  
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive  
Video Card: Sapphire 11199-00-20G HD7870 2GB GDDR5 Graphics Card 
Case: Cooler Master CM Storm Enforcer 
Power Supply: OCZ 550W ATX12V Power Supply  
Optical Drive: Sony DDU1681S-0B DVD/CD Drive 
Operating System: Microsoft Windows 7 Home Premium SP1 (64-bit)  
6 answers Last reply
More about help
  1. http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=XFX%20550
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817703035 <- Recommend, $20 rebate PLUS 15% discount.

    These are my three choices for your rig :) They will provide enough power and are VERY reliable.

    However, if you already purchased your PSU, what is the exact model? (ZS series? ZT Series?) Some are very robust, some are actually pretty shotty.
  2. mocchan said:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=XFX%20550
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817703035 <- Recommend, $20 rebate PLUS 15% discount.

    These are my three choices for your rig :) They will provide enough power and are VERY reliable.

    However, if you already purchased your PSU, what is the exact model? (ZS series? ZT Series?) Some are very robust, some are actually pretty shotty.


    Thanks for the links :) I havent ordered it yet no.
    will a 500 - 550 w definately do though? because that part really confuses me, and some people say to get a 600w to be safe but it all confuses me too much :P
  3. 600w would be if you want to Crossfire the HD7870's in the future.

    500w is MORE than enough for a 2500k+HD7870 :) they're very power efficient pieces of hardware.
  4. oh and the one i was looking at was the ZS series
  5. mocchan said:
    600w would be if you want to Crossfire the HD7870's in the future.

    500w is MORE than enough for a 2500k+HD7870 :) they're very power efficient pieces of hardware.

    Oh ok thats cool,
    Out of the three you recommended, what would you go for if you have my system?
  6. I would go for the PC Power and Cooling unit. I personally love the looks of the PSU, very reliable brand, and very decent price at the moment. It's hard to refuse :)

    Also on a side note, I plan to get that particular unit for my mother's new build :na:
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