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Power supply replacement

Has anyone tried using a standard ATX sized supply in an HP a1747c case? I am looking to add an ULTRA LSP550 to replace a failing stock power supply and am not sure If I would have to modify the case?
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  1. Best answer
    The PSU HP recommends for replacement is a standard ATX... http://www.atxpowersupplies.com/400-watt-power-supply-FSP400-60THN.php

    The Ultra you selected should work but I would recommend a Corsair, Antec (except BP's), Seasonice or OCZ PSU instead for a more reliable PSU.
  2. Corsair, PC Power & Cooling, and Seasonic are some of the brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty. Lately we've been seeing a few other brands offering some high quality units. An example would be the Antec Earthwatts series which is an improvement over Antec’s older series psu’s.
  3. tecmo34 said:
    The PSU HP recommends for replacement is a standard ATX... http://www.atxpowersupplies.com/400-watt-power-supply-FSP400-60THN.php

    The Ultra you selected should work but I would recommend a Corsair, Antec (except BP's), Seasonice or OCZ PSU instead for a more reliable PSU.



    Thanks for your response, I am hoping the install is fairly straight forward as the case dimensions and mounting holes are definitely not quite standard ATX.
  4. Quote:
    Forget the Ultra, they are junk.

    Great deal right now. 82% eff, modular, 135mm fan, quiet, 3yr warranty, dual 25a rails.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817341022



    Thank you for the advice, I have little doubt that the supplies you guys suggested are all better than the Ultra, I had already ordered before each of you had responded, at least the Ultra has a Lifetime replacement warranty if I register it. I am kind of stoked though because the stock supply was only 300 watts and now I can add a really decent graphics card, the PCIe slot is a 1x16, not the newer 2, see any real limitations there?


    Michael
  5. tecmo34 said:
    The PSU HP recommends for replacement is a standard ATX... http://www.atxpowersupplies.com/400-watt-power-supply-FSP400-60THN.php

    The Ultra you selected should work but I would recommend a Corsair, Antec (except BP's), Seasonice or OCZ PSU instead for a more reliable PSU.



    All of the answers were helpful, but knowing that a standard ATX supply would fit in this HP case helped the most. If I were building a PC I would definitely look at the makes that you guys suggested. I would also be looking at a different build altogether.
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