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michael92864
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power

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HP Pavilion p7-1235 Desktop PC
Microsoft Windows 10 (64-bit)

HP Pavilion p7-1235 Desktop PC need a power supply up grade. to run a ( msi gtx 1660 ti GPU )  i only have 300watt will this run the GPU was told i needed at least 500 watt ??? power supply is there a 500-550 watt that will replace my 300watt

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KingOP
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There is. Amazon has a wide selection of them and what little I saw they were inexpensive.

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SimonaStick
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Before you wildly leap into a power supply, let it be known that HP Desktops use proprietary connections from the power supply to the motherboard. 

 

HP Pavilion p7-1235 Desktop came with an "MSI" built AMD A8 processor in a FM2 socket which is older high energy consumption hardware. Even at the current level of energy consumption you should not be looking at anywhere near 300 Watts consumed by just your desktop alone, regardless of your single gpu. 

 

If you do not have an available PCI-e plug for your new graphics card and are willing to forego your optical drive, you can get a patch cord that connects one sata connection to PCI-e graphic plug. This can be purchased from Amazon as well and costs far less than a new power supply what will not work out of the box anyway. Take my word for it, you need an adapter plug for those too. 

 

Good Luck

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wb2001
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@michael92864,

The PSU in that case is a 300W Gamay, a standard 24pin main and 4 pin aux ATX power supply.

It is not an HP product, nor is it proprietary. A Corsair CX550 is an exact fit.  Your old unit should be on the left.

A Corsair (550W,  660W or 650W same measurements) is shown on the right.

Standard ATX PSU measurements (324 x 212).jpg

Corsair CX600 rear view-1.jpg

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