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what the difference between certified and ready haswell PSU?

what the difference between certified and ready haswell PSU?
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More about difference certified ready haswell psu
  1. Best answer
    I would say around 80% of the current Haswell certified PSUs are pre-Haswell. So, I guess most recent quality PSUs would work with Haswell.
    However, there is of course no guarantee. But it should work fine.
    I just saw a link:
    http://coolermaster-usa.com/press_release/haswell/haswell.html

    Most power supplies don’t support Haswell – False
    I need a Haswell certified power supply to build a Haswell system – False
    Haswell only works with DC-DC Power Supplies – False
    Haswell only works with 80+ Gold and better Power Supplies – False
    Haswell requires a second 12V rail and doesn't work with single rail Power Supplies – False
    On some older power supplies, Haswell consumes 5W more in idle mode - True
    That's what they say...

    Basically,certified,Haswell ready PSU means, that PSU sure will power up your Haswell system. But the others,there exist doubts...though it doesn't mean they won't...Just not completely sure...
  2. From what I know Haswell has a really deep sleep state. Any PSU should be able to power Haswell. But if you choose to use the sleep function in windows if your PSU handle the low load it will reboot. If you don't use sleep this won't be an issue.

    Edit: Let me try this again...

    From what I know Haswell has a really deep sleep state. Any PSU should be able to power Haswell. But if you use the sleep function in windows and if your PSU can't handle the low load it will reboot. If you don't use sleep this won't be an issue.
  3. Yeah... 4745454b is right....It's something about the sleep mode....
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