750 watt good enough ?

I currently have a 750 watt rosewill power supply. I hear VERY bad things about Rosewill and I think this PSU is about 2 years old already. I bought my pc used. I am about to do a BIG upgrade from 920 to 970 I don't want to risk damage from a cheap crappy PSU So I am going to get a corsair I think.

My question is will a 750 watt corsair be enough to do what I need. The crappie rosewill seems to be doing good now with the 920 ES at stock volts.

My upgrade will include

12 gigs of tipple channel memory
1 dvd / re write drive
1 blu ray read write drive
1 corsair h50 water cooler
i7 970 overclocked to 4.2ghz
1 ati 5830 may do crossfire with the new 6900 series in the future at stock but don't know
1 TB hard drive
1 2 TB hard Drive
1 solid state drive
5 cpu fans total
8 answers Last reply
More about watt good
  1. how about Coolermaster?
  2. The 750 watt Corsair will be more than adequate for your proposed system.

    The cheap CoolerMaster PSU's are junk. The GX series? I don't know.They may be OK, but why risk it?
  3. Corsair makes great psu's especially if you're talking a TXV2,HX,orAX.
    Here's some power consumption measurements with a i7 965 mid oc.
    http://www.guru3d.com/article/radeon-6950-6970-review/11
    http://www.guru3d.com/article/radeon-hd-6950-crossfirex-review/14
    I would probably buy an 850W unit.
    Btw you'll never oc your cpu to 4.2Ghz with a H50 and have good temps.
    A 750W Corsair would be fine with your current specs.
  4. Why not oc your 920 instead of buying a 970? Do you just want the 6 core?
  5. Exactly ^.. Don't go for a 970 if you do not need it.. Also, I did not understand your crossfire idea.. If you were suggesting about crossfiring a 5830 with a 6950/6970 then I think its not possible.. Btw, a 750 watter from Corsair, Antec, XFX or Seasonic will be plenty for your current needs and future plans..
  6. davcon said:
    Corsair makes great psu's especially if you're talking a TXV2,HX,orAX.
    Here's some power consumption measurements with a i7 965 mid oc.
    http://www.guru3d.com/article/radeon-6950-6970-review/11
    http://www.guru3d.com/article/radeon-hd-6950-crossfirex-review/14
    I would probably buy an 850W unit.
    Btw you'll never oc your cpu to 4.2Ghz with a H50 and have good temps.
    A 750W Corsair would be fine with your current specs.



    I thought that the 970 4.2 could be overclocked at 4.2ghz on air cooler with good temps and that the corsair h50 was better then air?
  7. christop said:
    Why not oc your 920 instead of buying a 970? Do you just want the 6 core?


    I am having issues with my 920 overclocking. First off it's a 920 ES step A and from what I hear the processor is great for over clocking but harder for a amateur like myself to over clock.


    I do ALOT of blu ray movie encoding and I want to try and increase my rips down to a hour less.
  8. jsc said:
    The 750 watt Corsair will be more than adequate for your proposed system.

    The cheap CoolerMaster PSU's are junk. The GX series? I don't know.They may be OK, but why risk it?



    Thanks I GOT TO GET THIS ROSEWILL CRAP OUT OF MY RIGG before I install the i7 970 I think I am asking for trouble if I don't.
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