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5830 on a 450W PSU

post #1 of 8
Thread Starter 
Okay so i have a Odyssey PSU @450Watt.....I read around and found that it'd generally hold the load of a 5830 if the current on 12V rail is pretty strong....but I looked it up and it has only 10A on the 12V line -,-
the choice is only have is to get another local 450 watt PSU and run it for ONLY the card because I'm kinda totally dry for next couple of months and cant afford the 500W ones :/
So OCers, think its a good idea? I'll spilce the green and the black ground from the second PSU into the first PSU to load the second PSU.
And if it will work, what amount of least current should there be on the 12V line if I'm to run ONLY the card on it?
i've read that 5830 eats upto 175W on load.....but I'll most probably be also OCing it....assuming the PSU is not so efficient and to leave some headroom, should the minimum current on 12V line be like 18-20 amps? Or does the PCI-e provide the 75 watt and I'll only need to feed 100 W through the 2 6-pin connectors?
Is there any kind of risk of over-current to the card?

And if you've previously done dual PSU system, how did it perform and what cautions to take?
thanks folks! cheers!
Edited by sandy2409 - 3/4/12 at 8:47pm
post #2 of 8
Thread Starter 
anyone?
post #3 of 8
looking at the psu i doubt it is a decent psu. 450W might be the MAX, so really it would be a 300-350W PSU. What places do you have to purchase from, because I don't thing simply adding another PSU would solve your problems. Most cheap PSUs have most of their rated power on the 3.3V and 5V
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post #4 of 8
it's not a fully 450W PSU~upgrade it.
post #5 of 8
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182199&Tpk=rosewill%20530w grab this PSU if you are on a budget. Will run any single GPU out there.
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post #6 of 8
I'm assuming that the OP is in India based on the PSU he says he has
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ShadowForge
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post #7 of 8
Thread Starter 
yes, I'm in india....the 500 W PSUs would cost me about double to that of 450W....I already asked for my next month's allowance in advance for the card biggrin.gif
so now I'm left with just enough money for a 450W PSU redface.gif
I might look around and search for a 450W PSU with higher ratings on the 12V rail if that might solve the problem?
post #8 of 8
Thread Starter 
@Quesoblanco
I cant use newegg frown.gif I saw a lot of very amazing deals on there but sadly they dont ship internationally.
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