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trying to upgrade my pc for the first time and need advice on what power supply to choose

so this is the pc i have : http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03382053&lang=en&cc=us&taskId=110&contentType=SupportFAQ&prodSeriesId=5258508

i need at least 500W for the graphics card i want to purchase , but i cant seem to find a power supply with the right size.
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  1. Kai Edwards said:
    so this is the pc i have : http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03382053&lang=en&cc=us&taskId=110&contentType=SupportFAQ&prodSeriesId=5258508

    i need at least 500W for the graphics card i want to purchase , but i cant seem to find a power supply with the right size.


    Hi - that mini-tower accepts std ATX size PSU's, which are the vast majority being
    sold and available now. The width & height are std, the length can differ, you
    should be OK with any ATX PSU.

    What is your budget for a PSU? and what graphics card are you purchasing. You might
    have more of an issue with the GPU fitting than the PSU.
  2. well i was thinking about getting this graphics card : http://www.overclockers.co.uk/showproduct.php?prodid=GX-292-AS&groupid=701&catid=1914

    However when it comes to PSU my budget is quite high.
  3. Best answer
    Kai Edwards said:
    well i was thinking about getting this graphics card : http://www.overclockers.co.uk/showproduct.php?prodid=GX-292-AS&groupid=701&catid=1914

    However when it comes to PSU my budget is quite high.


    Hi - I'll look for some for you to choose from in a minute or two. Please remove the side panel
    from your PC and measure along the PCIe slot (where the gpu will go) from the rear of
    the tower to where the 1st obstruction is, generally your hdd. You might have an issue, &
    you might be OK. You need 272millimeters for the length of that card to fit.

    I'll now look for some PSU's for you.

    Hi again -here a few choices for you to consider, all will run your system:

    http://uk.pcpartpicker.com/mr/scancouk/xfx-power-supply-p1550sxxb9 XFX 550 & least expensive of these.

    http://uk.pcpartpicker.com/mr/scancouk/antec-power-supply-hcg520 Antec 520w high current gamer

    http://uk.pcpartpicker.com/mr/amazonuk/seasonic-power-supply-m12ii520bronze Seasonic 520 - modular

    http://uk.pcpartpicker.com/mr/scancouk/seasonic-power-supply-ssr550rm Seasonic 550 - modular - gold efficiency
  4. Assuming your GPU fits may I suggest the Corsair 600w CXM? ( http://www.ebuyer.com/429985-corsair-cx-series-cx600m-atx-power-supply-cp-9020060-uk?utm_source=google&utm_medium=products&gclid=CKudpIb2jLkCFYfMtAodqmwAvQ )
    It's efficient (80 plus bronze) and it's modular, so it'll keep airflow, keeping your Computer cooler.
  5. Kai Edwards said:
    well i was thinking about getting this graphics card : http://www.overclockers.co.uk/showproduct.php?prodid=GX-292-AS&groupid=701&catid=1914

    However when it comes to PSU my budget is quite high.


    I recommended some above, I didn't suggest any 'budget level' units, as you aren't
    overly concerned about lowest cost.
  6. For a system using a single GeForce GTX 660 (non-Ti) graphics card NVIDIA specifies a minimum of a 450 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 24 Amps or greater and that has at least one 6-pin PCI Express supplementary power connector.

    Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

    Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

    The XFX Pro Series Core Edition 450W (P1-450S-X2B9) power supply unit, with its maximum combined +12 Volt continuous current rating of 37 Amps and with one (6+2)-pin PCI Express supplementary power connector, is more than sufficient to power your system configuration with a single GeForce GTX 660 (non-Ti) graphics card. Its physical dimensions are exactly the same as your current HP OEM 300W power supply unit.

    http://www.scan.co.uk/products/450w-xfx-pro-core-edition-p1-450s-x2b9-85-eff-80-plus-bronze-sli-crossfire-eps-12v-fan-atx-v231-psu
  7. with the graphics card it does not have to be that one , that one was just a benchmark , if you see any that you know my pc should be able to fit just tell me.
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