power supply upgrade

March 2, 2011 at 12:23:01
Specs: Windows vista, 2gb
so i need to upgrade my emachines t5082's power supply but i dont know if all brands would be compatible with my computer, or if there is anything to consider when u change your power supply. Im upgrading because a graphics card i bought says i need a 550 watt power supply.

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March 2, 2011 at 13:25:11

This will do nicely, and it's only $45 after the rebate. Most importantly, it has a single 12 volt rail and 80% efficiency rating. You won't do better than this.

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March 2, 2011 at 13:50:00
another thing if the card need a 550 watt power supply should i get something with more wattage for the other components of my computer or would it be fine with just the 550wtt?

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March 2, 2011 at 15:02:46
It will be fine with the one I suggested. It goes more with Amps than wattage anyhow.

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March 2, 2011 at 16:02:35
Your problem is you bought an outdated power-hungry video card, Radeon HD 2900XT, I believe? AMD/ATI has already released the HD 6000 series, so your card is 4 generations old. A lot has happened in terms of performance & power efficiency since then. The HD 5670 for example, performs just as well or better than the HD 2900XT & it doesn't use anywhere near as much power. It doesn't even require the 6-pin PCIe plug.


Anyhow, a 500-550W PSU should be plenty, just make sure it's a good one. The one suggested by grasshopper is an excellent choice. The cost of the video card & PSU is a lot of money to drop into an weak outdated machine though.


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