need help picking a power supply

i already have an amd ii 965 black edition cpu, some am3+ motherboard (i forget the model, its from a couple years ago). i just purchased a 7870 ghz oz edition: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102983

this is the ram i'll be getting: http://www.newegg.com/Product/Product.aspx?Item=N82E16820226219&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

and this is the case: http://www.newegg.com/Product/Product.aspx?Item=N82E16811147160&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

and this is the psu i'm planning on getting:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

also, I'll be getting the cheapest dvd drive i can and not crossfiring or upgrading anything for a while. is 550w enough or should i go 650w? i think 550 is enough but thoughts?
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More about picking power supply
  1. nevermind....just remembered i changed to a 650w from corsair, should be more than enough.
  2. Anonymous said:
    nevermind....just remembered i changed to a 650w from corsair, should be more than enough.



    No harm in the 650, but the XFX 550 is more than enough for your system.
  3. toyftw said:
    Anonymous said:
    nevermind....just remembered i changed to a 650w from corsair, should be more than enough.



    No harm in the 650, but the XFX 550 is more than enough for your system.



    i just figure that since sapphire recommends a minimum of 500 for the card and eventually i'll be upgrading, the 650 can't hurt. plus there are some great sales going on now, thanks
  4. Anonymous said:
    toyftw said:
    Anonymous said:
    nevermind....just remembered i changed to a 650w from corsair, should be more than enough.



    No harm in the 650, but the XFX 550 is more than enough for your system.



    i just figure that since sapphire recommends a minimum of 500 for the card and eventually i'll be upgrading, the 650 can't hurt. plus there are some great sales going on now, thanks


    Correct, a 650w won't hurt. Did that myself, needed 450-500w, got a 650.
    Pointed out XFX550 as it is sufficient & usually 550's are less money than 650's.
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