Installing a new HD 5670 on my computer?

Hello, my current computer now is the P6655D, and the link to its information is right here. http://www.villman.com/Product-Detail/HP_Pavilion_p6655d_DT_PC anyway, the computer comes with the standard motherboard "Iona-GL8E". it also has an HD 5450 1gb card, and it comes with a 250 power supply. I wanna upgrade my Power Supply and my Video card but my mobo only has ONE x16 graphics slot lane. i was wondering if the HD 5670 is compatible? and if i can put a new power supply into the computer aswell? i dont wanna risk getting a blank screen when i turn on my computer with a new 5670. So any help is appreciated
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  1. driftkingz109 said:
    Hello, my current computer now is the P6655D, and the link to its information is right here. http://www.villman.com/Product-Detail/HP_Pavilion_p6655d_DT_PC anyway, the computer comes with the standard motherboard "Iona-GL8E". it also has an HD 5450 1gb card, and it comes with a 250 power supply. I wanna upgrade my Power Supply and my Video card but my mobo only has ONE x16 graphics slot lane. i was wondering if the HD 5670 is compatible? and if i can put a new power supply into the computer aswell? i dont wanna risk getting a blank screen when i turn on my computer with a new 5670. So any help is appreciated

    I had a 220W Power Supply and it ran a Radeon 5570 perfectly. For the Radeon 5670, considering you have 30W extra, you shouldn't have a problem. If you do then get a new power supply. If you don't want a power supply then consider getting the Radeon 5570.
  2. check out your specs on label on PSU
    look for amps on 12v+ line
    I run my HD 5670 on a Dell 280w PSU with a 16amp 12v+
    total wattage does not indicate how well a PSU can handle a card
    also have to consider wattage of CPU,how many hard drives,optical drives
    PCI cards etc
    the HD 5670 is a low powered card that draws 64w on max load
    this is a decent PSU calculator
    http://extreme.outervision.com/psucalculatorlite.jsp
    it will show minimum and recomended wattages
    it overestimates a little also
    so take that into account
  3. I did the PSU calculator and
    minimum is 211w
    recommended is 261w

    that is calculating with
    1 stick of ram (as spec'd by your link)
    1 HD
    2 80mm fans
    1 dvdrw
    1 media card reader
    I3-550
    10 percent PSU capacitor aging

    so you should be fine
    but remember that PSUs are not always rated right by manafacturers
    they play with the numbers
    also it is pushing your PSU to its limits
    so be aware of that
    with any GPU upgrade there are risks
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