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How much power?

Hey, my build is:

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor
Motherboard: Intel DZ77BH55K ATX LGA1155 Motherboard
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory (CMZ8GX3M2A1600C9B)
Storage: OCZ Vertex 3 120GB 2.5" Solid State Disk (VTX3-25SAT3-120G)
Storage: Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive
Video Card: XFX Radeon HD 7850 1GB Video Card (FX-785A-ZNFV (not ZNFC) ) (Tigerdirect for $170)
Case: unbranded but its atx size
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer
Monitor: LG E2742V-BN 27.0" Monitor
Keyboard: Thermaltake eSPORTS Challenger Pro Wired Gaming Keyboard
Mouse: Logitech M325 Wireless Optical Mouse


Can anyone say how much power this build needs to run efficiently so i can pick a psu. I was looking at the cooler master extreme 500w but everyone is saying its bad. I'm currently not planning on overclocking anytime soon and don't want to spend alot of money on this. So would a 430w or something work?
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More about power
  1. It all depends on how much room for expansion you're looking for. I personally have a cooler master extreme 600w and wish I had something that I could do more with. I mean, the wattage is great but there are just not enough connections in the right categories to constitute a good power supply for a nice gaming system.

    I would suggest something modular and high-wattage, because you are going to eventually have to upgrade and things will constantly demand more power and connections to keep up with the gaming community, and PSU units are relatively low range in price to wattage. It's nothing like graphics cards' exponential increase of price with minimal differentiation in results.

    But if you need to stick to a budget, the minimum wattage for that system would be fine, but you HAVE TO make sure that its going to support everything you need. I bought a radeon 4850 not knowing my PSU didn't have a pic power connector, and I had to watch it sitting in that bag for weeks.

    I can't stress enough that checking what can support what is the most important aspect of choosing a PSU. I can say this from experience.

    Please keep us updated with what you choose, and thanks for hearing me out!
  2. http://www.extreme.outervision.com/psucalculatorlite.jsp

    using this, pulls under 400. Skimping out on the PSU is a good way to lose all of your goodies. Most important but underrated component. You don't need high wattage but higher quality.

    500 watt version but you can pick up the 430 version as well if you really don't care.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027
  3. If you've got the cash, skip the CX and go straight for the TX - Corsair TX 650 v2.
  4. Best answer
    rick123123 said:
    Hey, my build is:

    CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor
    Motherboard: Intel DZ77BH55K ATX LGA1155 Motherboard
    Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory (CMZ8GX3M2A1600C9B)
    Storage: OCZ Vertex 3 120GB 2.5" Solid State Disk (VTX3-25SAT3-120G)
    Storage: Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive
    Video Card: XFX Radeon HD 7850 1GB Video Card (FX-785A-ZNFV (not ZNFC) ) (Tigerdirect for $170)
    Case: unbranded but its atx size
    Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer
    Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer
    Monitor: LG E2742V-BN 27.0" Monitor
    Keyboard: Thermaltake eSPORTS Challenger Pro Wired Gaming Keyboard
    Mouse: Logitech M325 Wireless Optical Mouse


    Can anyone say how much power this build needs to run efficiently so i can pick a psu. I was looking at the cooler master extreme 500w but everyone is saying its bad. I'm currently not planning on overclocking anytime soon and don't want to spend alot of money on this. So would a 430w or something work?
    Nope that will not work.You half to save more money i guess.
    Here is Guru3D's power supply recommendation:

    Radeon HD 7850 - On your average system the card requires you to have a 500 Watt power supply unit and 650 Watt if you go with two cards in Crossfire mode.


    If you are going to overclock the GPU or processor, then we do recommend you purchase something with some more stamina. Source: http://www.guru3d.com/articles_pages/amd_radeon_hd_7850_and_7870_review,7.html Here some recommendations

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371030
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151119
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027
  5. I'd go for an 850 watt PSU, it gives you more cables to work with and the extra power will allow for excessive use of CD/DVD drives, espcially if you intend on burning lots of disks.

    Don't forget that you may be thinking about attaching extra devices to usb ports or may need to add a another hdd in the future, best to have alittle more power than running at full steam all of the time.
  6. thanks for all the help. What exactly is the difference between the corsair tx and cx series?
  7. CX is built using less quality parts TX V2 is built by Seasonic the CX is built by CWT if you want to learn more about it check these links http://www.realhardtechx.com/index_archivos/Page541.htm and this one http://www.eggxpert.com/forums/permalink/323050/323050/ShowThread.aspx#323050
  8. I found these at good price right now. Which would you recommend?
    Antec EA-650 Green
    Corsair CX600 V2
  9. both are decent get which ever is cheaper
  10. Thanks for all the Help everyone! I got the corsair.
  11. Best answer selected by rick123123.
  12. Your welcome! :)
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