PSU watt required / Model

Hi folks, for a system with the following set up , may I know the PSU wattage required.Also kindly suggest some top quality PSU.
Thought of getting a Antec700W PSU,Any suggestions?

i5 - 750
Intel DP55KG
Radeon 5770 - for now 1,will to CF in future so take it as X2
2 GB RAM - Transend
Seagate 500 GB
Samsung DVD-Writer 22xD
13 answers Last reply
More about watt required model
  1. Antec is solid. You may also want to take a look at Corsair, Seasonic, and OCZ's 80 Plus power supplies if you want to save a bit of cash and still be safe.

    650W will be plenty for that system and you will want 4GBs of RAM.
  2. BohleyK said:
    Antec is solid. You may also want to take a look at Corsair, Seasonic, and OCZ's 80 Plus power supplies if you want to save a bit of cash and still be safe.

    650W will be plenty for that system and you will want 4GBs of RAM.


    Thanks man,
    I am curious why 4 Gb is required ?
  3. Its the standard now a days. Applications are needing more and more memory.

    Also, you mine as well pay the extra $20 for twice the memory. P55 is designed for 2 and 4 sticks of RAM. If you are using a single 2GB stick the motherboard will not take full advantage since its not running Dual Channel.
  4. Yes get 4GB Ram.preferably the same model and same brand as of the 1st one.
    Since Vista/Windows 7 will use 1GB RAM themselves along with Antivirus and other programs.
    That leaves 1GB for other purposes like gaming which is quite LOW.
    Even a 3 year old game utilizes 1GB of RAM,

    Even a Cosair 550Vx or 650TX will be sufficient for your rig.

    Antec 700W will be enough to handle the rig.
  5. ati reccomends 600 watts for crossfire 5770
    antec sg /ea 650
    corsair tx/hx650
    seasonic 650
    enermax 650
    ocz 650
    xfx 650
    will all run 2 5770's with ease
  6. From your comment i get it that a 650w antec will do the job . Will putting in a 700w PSU , where a 650w is required do any damage . Assuming too much power like in over voltage .
  7. From your comment i get it that a 650w antec will do the job . Will putting in a 700w PSU , where a 650w is required do any damage . Assuming too much power like in over voltage .
  8. sri@1kGHz said:
    Will putting in a 700w PSU , where a 650w is required do any damage .

    No.
  9. No.It won't do any damage.
  10. BohleyK said:
    Antec is solid. You may also want to take a look at Corsair, Seasonic, and OCZ's 80 Plus power supplies if you want to save a bit of cash and still be safe.

    650W will be plenty for that system and you will want 4GBs of RAM.



    For My PSU to be 650 W what will be an optimum UPS rating required
    ?
  11. http://www.antec.outervision.com/PSUEngine
    calcuated as 412 W for i5 - high end board - CF - Radeon 5770 + ...
  12. http://www.anandtech.com/casecoolingpsus/showdoc.aspx?i=3413&p=7

    By this article ,the 850 W Antec PSU will be quiter and efficient .
  13. seasonic X-650/X-750 is some of the quietest power supplies ever made
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