PSU Calculator not accurate

Hi,


I tried different PSU Calculators and they differ in huge amounts for the same setup. Like at least 50- 90 watts difference in the 3 PSU calculators. I just cannot afford to buy a costly PSU . I asked my PC dealer and he told for the money i got he could get me a Mercury 450 Watt PSU
Will that be enough for

this setup :

AMD Athlonx2 7750
XFX XXX ATI 4850
2GB DDr2 COrshair
1 DVDRW drive
2 Seagate barracude 7200rpm

I just need to know if 450 watt PSU will be enough? Anyone help ? please .
5 answers Last reply
More about calculator accurate
  1. A good quality 400W PSU is plenty for your system. I would recommend Corsair CX400, Antec Earthwatts 380 or 430, or Seasonic S12 II 380 or 430.

    The PSU is the most important component in your system. If you buy a crappy PSU there is a good chance it will fail, and when it does it can take other components with it.
  2. Thanks a lot . But I can't afford a Corsair or Antec etc ... No money . My PC dealer suggested me Mercury 450 watt will that be okay ?
  3. hash said:
    Thanks a lot . But I can't afford a Corsair or Antec etc ... No money . My PC dealer suggested me Mercury 450 watt will that be okay ?


    Never heard of it, so chances are it's crap, which means it may ending up costing you a lot more in the long run if you need to replace other parts due to failure.

    Some decent lower cost PSUs are Antec Basiq or OCZ, or Seasonic SS.
  4. Although I like Antecs (I own two), I have heard enough bad the about the Basiq line, that I'd avoid it.

    hash, I'd avoid the Mercury PSU. I tried to google the PSU. Could not find specs.

    One thing you could, if you do not need it right away, is to watch for sales.
  5. Do try and get a decent psu. I used to use a 480W cheapo that come with my case. That is until i started getting the LED on the fans dimming when i loaded up games then crashing 5min in. Borrow $30 off a friend for a couple of weeks and splash out on a decent psu as it is the blood of your system. You will not regret it I PROMISE
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