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06-02-2013 05:14 PM
My brand new HP Pavilion desktop computer, purchased May 2013 from Costco, is model p7-1597c. It has no video card now, other than what's onboard its motherboard.
I am shocked to find out the psu (300watt, HP Part # 667893-002) has no connector to power a pci-e graphics card! The power supply has only wires coming from it going to the 24-pin connector on the mobo, the 4-pin connector to the mobo for the cpu, and one connector to the hard drive and one to the optical drive.
Must I replace the power supply that came with my three week old new computer or am I missing something?? Yes, I have accounted for all wires coming out of the psu.
Thanks to all who chime in,
06-02-2013 05:26 PM - edited 06-02-2013 05:28 PM
A 300 watt power supply doesn't supply enough power to require having PCIe 4/6/8 pin connectors on it and most basic low-end cards don't require those extra power connectors. All but the most basic graphics cards will require a power supply rating of more than 300 watts. If you intend on installing an upgraded graphics card, you will need to replace the power supply with one rated according to the graphics card manufacturer's requirements. Typically, this is going to be 400, 500, or even 600 watts.
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