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Last component...the PSU! Buy now!

All my main parts are pretty much set as follows:

i5-3450
Asrock h77 pro mvp
corsair veng LP 4Gb*2 kit
Sapphire 7850 OC version

My plan was to get the Antec hcg520 with cable management before i chose to go with this gpu. Is it still good for my build or do i need 620w. Mostly used for gaming at 1080p res.

Please help! Buying the parts today! Thanx!
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  1. i run a 6870 with 400W, so i would reccomend a minimum of 450W (i set off over current protection sometimes) http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027&Tpk=corsair
  2. Best answer
    For a system using a single Radeon HD 7850 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a combined +12 Volt continuous current rating of 24 Amps or greater and have at least one 6-pin PCI Express supplementary power connector.The Antec hcg520 is sufficient i would get whatever is cheaper rather it be Antec hcg520 or

    I recommend
    SeaSonic S12II 520 Bronze 520W ATX12V V2.3 / EPS 12V V2.91 80 PLUS BRONZE Certified Active PFC Power Supply
    15% off w/ promo code SSPSU15, ends 8/13 http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094#top
  3. This would be fine as well XFX ATX 550 Power Supply - P1550SXXB9 http://www.amazon.com/XFX-ATX-550-Power-Supply/dp/B004RJ8EKI/ref=pd_rhf_dp_p_t_1
  4. I don't think you need a beastly PSU. An OC'd 7850 by itself is what, 150W or so? Only has one 6pin PCIe plug so around 150W is the max it can draw from board and plug. (160W or 175 probably max it can do, always can get a bit more.)
  5. 4745454b said:
    I don't think you need a beastly PSU. An OC'd 7850 by itself is what, 150W or so? Only has one 6pin PCIe plug so around 150W is the max it can draw from board and plug. (160W or 175 probably max it can do, always can get a bit more.)
    Very true i have a buddy using this one with his Antec VP-450 450W ATX 12V v2.3 Power Supply $34.99 http://www.newegg.com/Product/Product.aspx?Item=N82E16817371045#top :lol: OP you could save some money and buy that PSU if you want it is good enough ;)
  6. while gaming you won't even break 100w on the card.

  7. It is an OC'd 7850 so I think it will break 100W.
  8. still a very efficient card even if OC
  9. my 6870 pulls 140W, and im on 400W with a 95W cpu... i think he will be okay with a 450W+ PSU
  10. Thank you all so much for the replies.
    I have heard many great things about the seasonic psu but i live in hong kong and the stores here recommend me to go with a bigger brand like antec. Hence i am just worried that the seasonic i get here may not match up in quality. is there anything i can check when i get that psu to ensure its the "good" seasonic?
  11. Antec hcg520 is built by seasonic i didn't know that people make fake seasonic PSU the only advice i could give is look though these threads for info
    http://www.realhardtechx.com/index_archivos/Page673.htm
    http://forums.guru3d.com/showthread.php?t=205763
  12. i think seasonic is a company that can be trusted, i so far haven't heard anything bad about them so i doubt you will see anything pop up

    and if it does fail, it comes with a 5 year warranty
  13. well that's good yes seasonic is actually one of the best if not the best here is a list of recommended PSU for future reference for you http://www.tomshardware.com/forum/322966-28-list-recommended-psus#
  14. make sure to pick a best answer to close this thread. When your satisfied.
  15. Best answer selected by phenom383.
  16. ok. since i am a little tight on budget, i will just go with the cheaper of the two.

    Is the cable management/modular worth the investment? i will only be getting a low end case likexigmatek asgard or coolermaster 340.
  17. phenom383 said:
    Is the cable management/modular worth the investment?

    I personally would not bother with modular since it adds to cost, adds a possibility of mechanical failure and a possibility of losing the spare cables by the time you need them. Also, cheap cases with bottom-mount PSUs and no motherboard cable management usually have plenty of space to stash cables behind the 3.5" HDD rack.

    For top-mount PSUs, you can install the DVD drive in the 2nd 5.25" bay and stuff unused cables in the 1st one. It might not look pretty but it keeps unneeded cables out of the airflow which is all that is really required.
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