Sencapri wrote:would the TX650 corsair power supply be sufficient for my gtx 470? I think it might be over kill 0_o
morphine wrote:It's not the wattage that counts, it's the total power on the 12V rail. You quoted 28 amps, which gives you 28*12 = 336W. If your CPU consumes little power, then it can cut it, but personally I wouldn't go that route. Even if the whole system under load consumes only 250W, that means that the PSU will be running at ~74% load. Which for that type of power supply will be far too close for comfort.
If it would work? Probably. If I would do it? No way. Always invest in a good power supply, and always check the 12V amperage rating. That's the only thing that matters nowadays, really.
JustAnEngineer wrote:The best route would probably be Enermax or SeaSonic, but Corsair is just fine.
canoli wrote:Where do you find - or - how do I calculate the amperage for the 12v rail?
morphine wrote:canoli wrote:Where do you find - or - how do I calculate the amperage for the 12v rail?
Specifications page or sticker on the side.
Watts = volts * amps.
It's not Total_watts / Volts because you're assuming that the full wattage can go to the 12V rail, and that's exactly where cheap PSUs fail, as they only deliver a (sometimes small) portion of it at 12V.
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