Is this a good PSU for my build?

Is this a good PSU for my build? Which one is more advised? and the details of the 1st PSU doesnt say if it is SLI or Crossfire Ready, can I still have SLI or Crossfire even if it doesnt say...

PSU - CORSAIR Builder Series CX600 600W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

compared to this one that says that its SLI/Crossfire Ready

PSU - Rosewill Stallion Series RD600 600W ATX12V V2.3 SLI Ready CrossFire Ready Power Supply

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CPU - Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 BX80637I53570K

Motherboard - GIGABYTE GA-Z77X-UP4 TH LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with Dual Thunderbolt

HSF - COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler

RAM - G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL

SAPPHIRE 100355-1GOCL Radeon HD 7850 1GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card OC Version

BD-ROM - LG DVD Burner Black SATA Model GH24NS90 - OEM

OS/App HDD - Western Digital WD Blue WD5000AAKX 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Case - Rosewill CHALLENGER-U3 Black Gaming ATX Mid Tower Computer Case
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More about good build
  1. Are you planning on OCing the CPU/GPU?
    Recommended 500w PSU 21A.

    They can run xfire with those PSU but leaves little power left for OC and the rest of the hardware.
    You would get at least a 700w PSU for that.
    I recommend the XFX XXX 750w or the Corsair CX750w.

    Wasn't able to find one on the corsair exactly but:
    "Also, USD 70 is the same price as the Corsair CX600 V2, a power supply that, as far as we can tell, is internally identical to the Enermax NAXN 80+ 600 W"

    I've recommended corsair in the past, and while the CX is their lowest tier PSU product line, they are still fairly respected in my opinion. They are considered a tier 3 (good budget supply) in this listing:

    Also, 600W seems a little slim to me for crossfire/sli. Realistically, 600W is probably fine for 2x7850 if nothing is hugely overclocked, however something like this maybe a lot better: (I picked one of these up from newegg for 70$, considering the holidays coming up, if you are in the states, you may find one well priced).
  3. So 7850 consumes 132W peak with OC.

    So 'lets' make it 2 = 265W

    The CPU is 77W so lets make it 90 with OC

    15 Hdd , 25W DVD , 16W Ram

    And its a good 415 W

    So a good 520 /620 W will be ok

    I recomend this 90$ + Free shipping 60$ + 6$ shipping

    or this
  4. Those are both great supplies /\
  5. ^Agreed :)
  6. Thanks alot!

    The links to the information are a really big help as well.
  7. found a nice PSU, tier 1!! and with the promos its not that expencive

    Price $119 with promo $89

    PSU - KINGWIN Absolute Platinum Series AP-550 550W ATX 12V v2.2, EPS 12V v2.91 and SSI EPS 12V v2.92 SLI Ready CrossFire Ready 80 PLUS PLATINUM Certified Active PFC Power Supply
  8. I don't see it listed as a tier one from the site I linked (a different kingwin supply is, but not that one), however:

    It seems techpowerup found it to be a great unit, but at 550W it's great for 1x7850, but it is a bit small for 2x7850 (despite being crossfire ready).
  9. U dont need tha PSU. Platinium -.- . 120 for that PSU.

    U can get a bigger PSU if u want but u dont need a 550W at 120$.

    If u want other recc here they are

    Xfx 550W Pro Core
    Seasonic M12II 520W
  10. sorry... forgot about the SLI/Crossfire

    You're right, need a stronger (more Watt) PSU
  11. You need 415W on the rail . So a high quality PSU wuill do the job. The first that i mentioned are great but even the last 2 are great .So choose the cheapest one u can find out of the four.

    Xfx 550/650 W Pro Core
    Seasonic M12II 520/620W
  12. Newegg has a good deal going here:

    Tier1 supply, plenty of wattage for CF, cheaper than the 550w, and it's 80+Gold (not really important, but nice to have).

    If you see this post while it's still 100$ I wouldn't hesitate :)
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