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Ups to my psu

i had an in build psu of 180 watt . so i want to replace my old psu with corsair 450 watt psu. but i doubt that my ups can give 450 watt to my psu. my ups is 300 watt. so my question is do i have to remove my 300 watt ups if i buy a 450 psu?
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  1. If you are simply replacing the PSU and no other hardware, the UPS will be able to handle the load (the draw from the PSU won't change). If you are adding hardware, that is a different story.
    There is one concern though (found out the hard way) and that is the Corsair is an "Active PFC Power Supply" so unless your UPS is "Pure Sine-wave" or compatible, it will probably not work with the Corsair.
    What model UPS, I can find out.
  2. C12Friedman said:
    If you are simply replacing the PSU and no other hardware, the UPS will be able to handle the load (the draw from the PSU won't change). If you are adding hardware, that is a different story.
    There is one concern though (found out the hard way) and that is the Corsair is an "Active PFC Power Supply" so unless your UPS is "Pure Sine-wave" or compatible, it will probably not work with the Corsair.
    What model UPS, I can find out.

    Back ups 550 apc
  3. If it is this one
    http://www.newegg.com/Product/Product.aspx?Item=N82E16842101088
    it is not Pure Sine-wave and will probably not work correctly with the Corsair PSU

    The sad part of it is Active PFC PSU's are a better design than non active ones so the legitimacy of an upgrade is valid but... if you have power issues like I do at home, the UPS is almost a necessity so where do you balance? I personally took the expensive route but, unless you are not concerned about budget... I don't know if that's the best course or not
  4. C12Friedman said:
    If it is this one
    http://www.newegg.com/Product/Product.aspx?Item=N82E16842101088
    it is not Pure Sine-wave and will probably not work correctly with the Corsair PSU

    The sad part of it is Active PFC PSU's are a better design than non active ones so the legitimacy of an upgrade is valid but... if you have power issues like I do at home, the UPS is almost a necessity so where do you balance? I personally took the expensive route but, unless you are not concerned about budget... I don't know if that's the best course or not

    please tell me what i can do now.
  5. 300 Watts / 500 VA ... it's can handle your PSU 450W :, look http://www.apc.com/resource/include/techspec_index.cfm?base_sku=bk500ei

    ex : 450W / 0.86 (Efficiency *see at label PSU ) = 523 , it's max load power ... and 523W / 0.99 PF (Power Factor) = 528VA (your UPS )

    i think your PC doesnot ran at fulload everyday :D .. just assuming
  6. henydiah said:
    300 Watts / 500 VA ... it's can handle your PSU 450W :, look http://www.apc.com/resource/include/techspec_index.cfm?base_sku=bk500ei

    ex : 450W / 0.86 (Efficiency *see at label PSU ) = 523 , it's max load power ... and 523W / 0.99 PF (Power Factor) = 528VA (your UPS )

    i think your PC doesnot ran at fulload everyday :D .. just assuming

    what will happen if i run 450 watt psu on 300 watt ups?
  7. f electricity at home suddenly shutoff, the battery backup had time is not much ... may be 1 - 3 minutes or less , sorry no accurate calculation of time :D
  8. BSNL said:
    please tell me what i can do now.

    As far as I can tell, your options are
    1) keep current PSU/UPS combo
    2) upgrade both (most expensive option)
    3) upgrade PSU now to active PFC, and UPS when budget allows
    4) upgrade PSU to nonactive PFC type and keep current UPS

    Although 4 is the least expensive upgrade path, I would personally not choose that option since, as I pointed out before, active PFC PSU's are a better design. I feel that if you're going to upgrade, it should be an actual "upgrade".
    My $.02 worth.
  9. C12Friedman said:
    As far as I can tell, your options are
    1) keep current PSU/UPS combo
    2) upgrade both (most expensive option)
    3) upgrade PSU now to active PFC, and UPS when budget allows
    4) upgrade PSU to nonactive PFC type and keep current UPS

    Although 4 is the least expensive upgrade path, I would personally not choose that option since, as I pointed out before, active PFC PSU's are a better design. I feel that if you're going to upgrade, it should be an actual "upgrade".
    My $.02 worth.

    i am going to buy psu because i am going to buy a hd 6770 1gb ddr5 graphics card
  10. Remember that in the domestic environment your UPS is designed give your computer a chance to shut down gracefully in the event of a power failure. Or to cover a short term 'brown out'. 300watt is sufficient for that.

    Q
  11. BSNL said:
    i am going to buy psu because i am going to buy a hd 6770 1gb ddr5 graphics card

    Okay, with that GPU you may be drawing more than 300W (I believe that GPU alone draws about 200W under load) so your UPS upgrade would've been inevitable anyway...
    Something to consider as budget allows...
  12. C12Friedman said:
    Okay, with that GPU you may be drawing more than 300W (I believe that GPU alone draws about 200W under load) so your UPS upgrade would've been inevitable anyway...
    Something to consider as budget allows...

    will there be any different gaming experience between 4gb ddr2 and 4gb ddr3 ram. i mean that will i can recognize the quality of those two ram while gaming with intel core2duo e7400 @2.80ghz and 6770 1gb graphics card?
  13. C12Friedman said:
    If it is this one
    http://www.newegg.com/Product/Product.aspx?Item=N82E16842101088
    it is not Pure Sine-wave and will probably not work correctly with the Corsair PSU

    The sad part of it is Active PFC PSU's are a better design than non active ones so the legitimacy of an upgrade is valid but... if you have power issues like I do at home, the UPS is almost a necessity so where do you balance? I personally took the expensive route but, unless you are not concerned about budget... I don't know if that's the best course or not

    no that's not my psu, this is my psu

    http://www.google.co.in/imgres?q=back+ups+550&num=10&hl=en&biw=1366&bih=643&tbm=isch&tbnid=ZMXe3S9sSaXd0M:&imgrefurl=http://pune.olx.in/apc-back-ups-550-230v-ups-without-auto-shutdown-software-for-sale-iid-70587936&docid=GtvY_UTt-3F8uM&imgurl=http://images04.olx.in/ui/4/85/36/70587936_1-Pictures-of-APC-Back-UPS-550-230V-UPS-without-auto-shutdown-software-for-sale.jpg&w=500&h=500&ei=puMfUPmDOoPprAfarIHIAQ&zoom=1&iact=hc&vpx=627&vpy=287&dur=186&hovh=225&hovw=225&tx=115&ty=132&sig=109504759742161309543&page=1&tbnh=136&tbnw=128&start=0&ndsp=20&ved=1t:429,r:9,s:0,i:101
  14. henydiah said:
    f electricity at home suddenly shutoff, the battery backup had time is not much ... may be 1 - 3 minutes or less , sorry no accurate calculation of time :D

    i dont care about the backup. 1-3 minutes is enough. please tell me the 300 watt back ups 550 can handle(give power) to the 450 watt corsair psu?my ups is this one.will it do nothing like burning my ups,cpu,psu or gpu?

    http://www.google.co.in/imgres?q=back+ups+550&hl=en&sa=G&biw=1366&bih=643&tbm=isch&tbnid=euha-aWoghQGrM:&imgrefurl=http://apexenterprises.in/index.php%3Froute%3Dproduct/product%26manufacturer_id%3D24%26product_id%3D271&docid=vYTk7Mb8a_r1bM&imgurl=http://apexenterprises.in/image/cache/APC550-500x500.jpg&w=500&h=500&ei=KQ4iUJjBAZSciQeexYCICA&zoom=1
  15. Best answer
    I know this is old, but....

    The UPS will beep if you try to draw too much power(the software will also tell you if you have it installed). Unless the system actually draws the 300 watts, it will work. Get over 300(or at whatever point to ups calls an overload ) and it will just fold(shut off in a power out).

    It is better for the UPS to fold then try to power something it can not.
  16. Best answer selected by BSNL.
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