Adapt a PCIe16 plug to an older power supply

Microsoft / Combat flight simulator
November 19, 2010 at 20:58:08
Specs: Windows XP, 2.8Ghz/2GB
Gateway 5404 with 300 watt power supply, with 1 PCIe connector provided for the one slot on the motherboard. 300 watts is minimum to run the Nvidia GT 7900 graphics card. I have a 450 watt Coolmax power supply but it does not have a PCIe connector. Old unit but 33% more power than the stock power supply. Can I adapt one of the white 4 wire plugs to a PCIe plug to use the bigger power supply? Any feedback would be appreciated. Thank you for listening.

See More: Adapt a PCIe16 plug to an older power supply

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#1
November 20, 2010 at 06:27:56
Just because the wattage is higher doesn't mean it has 33% more power. Compare the amperage on the +12v rails. I don't recommend what you're considering.

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#2
November 20, 2010 at 07:03:01
You can purchase adaptor cables from most good PC Shops and Ebay.

Yes the wattage is irrelevent as stated above...


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#3
November 21, 2010 at 12:33:14
Thank you for your reply. Thinking about a square peg and round hole, I am going to invest in a new power supply with PCIe connection and do it right. Thanks for the info.

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