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450Watts enough for this system?

By korrupt ยท 9 replies
Oct 12, 2006
  1. I'm thinking of building the following system for a mate, but need to know if 450w psu is enough.

    CPU CORE 2 DUO E6600/2.40GHz/4MB CACHE/1066FSB/LGA775
    RAM Kingston KVR667D2N5/1G 1Gb DDR2 667
    Motherboard GIGABYTE GA865P S775, P965, ATX, FSB1066, PCIE16, DDR2, SATAII, RAID, GbELAN, VDUALBIO, Core2Duo
    Harddrive (system) WD 74GB 10,000rpm 16Mb Cache SATA
    Video card Gigabyte GF 7950GX2 1Gb/TV-Out/DVI
    Case/psu Antec Sonata II Tower Case w/450W


  2. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,443   +36

    Nope. I would recommend at least a 550W+ PSU for that configuration. The 7950GX2 is a terrible sucker for power, as are the E6600 and the Raptor.
  3. Didou

    Didou Bowtie extraordinair! Posts: 4,274

    You'll be fine with that PSU, I suppose it is the Antec PSU that came with the Sonata. The only reason you'd need a stronger PSU is if you were intending to use a 2nd VGA card for SLI but even then I'm not sure that 450 wouldn't suffice.
  4. korrupt

    korrupt TS Rookie Topic Starter Posts: 716

    so I have 2 different opinions from two very "reputable" people - any more opinions would be appreciated!

  5. Shoupie080

    Shoupie080 TS Rookie Posts: 67

    I've burnt up two 450 watts in my system:

    p4 3.0
    1 g ddr 3200 ram

    So for 50 bucks more or whatever the price I would get a 550-600 watt. It's very frustrating when you start to smell your computer burning because of your psu.
  6. jb444

    jb444 TS Rookie Posts: 100

  7. Rik

    Rik Banned Posts: 3,814

  8. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,443   +36

    I agree. It's better to get a 550W PSU and be sure that it's more than enough than get a 450W one and have it get burnt out.
  9. nickslick74

    nickslick74 TS Rookie Posts: 575

    Using your specs as a rough guide, you will need a 432 watt psu (according to the calculator above). If you figure they run at about 80% effiency, then you are looking at about a 500W psu. The 450 will probably get him by, but it will be stressed.


    If he plans on going Sli in the future, you are looking at 600+ for a psu.
  10. altheman

    altheman TS Rookie Posts: 425

    Seriously, get a 550w. That is a powerful system, taking the risk isn't worth it.
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