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Can i use a seperate PSU to power a GTS250

post #1 of 54
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I don't have a PSU with a 6-pin connector, My PSU right not is 600W but without a 6-Pin, I also have a 300W PSU that i can start using a paper clip bent into shape that is not being used for a PC but only used for testing parts that my clients buys..
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post #2 of 54
I was actually wondering the same thing. I know it's possible but people don't recommend it. Then there's this thing:

http://www.newegg.com/Product/Produc...82E16817104054

But they don't sell it in my country

EDIT:

I read the question the wrong way......

Get a dual molex to 6 pin adapter
Edited by TheBlademaster01 - 1/27/11 at 8:01am
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post #3 of 54
Better off getting a molex to 6 pin pci-e adapter.
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post #4 of 54
Quote:
Originally Posted by Speedster159 View Post
I don't have a PSU with a 6-pin connector, My PSU right not is 600W but without a 6-Pin, I also have a 300W PSU that i can start using a paper clip bent into shape that is not being used for a PC but only used for testing parts that my clients buys..
You can and it should not be a problem with the GTS250, however a 300w PSU is probably not 300W its probably more like 200W(although this is plenty for the GTS250).

Now if you post this in the Power Supply section the PSU gurus will tell you running a PSU using only the 12v rails can cause the 12v rails to perform outside spec and thus cause instability.

That being said it really depends how much your value your GTS250, if you want to deliver perfectly clean power to it this is probably not the best idea, if you just want it to work, this will probably be just fine.
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post #5 of 54
Thread Starter 
Quote:
Originally Posted by TheBlademaster01 View Post
I was actually wondering the same thing. I know it's possible but people don't recommend it. Then there's this thing:

http://www.newegg.com/Product/Produc...82E16817104054

But they don't sell it in my country

EDIT:

I read the question the wrong way......

Get a dual molex to 6 pin adapter
I think it's the same thing only bigger?
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post #6 of 54
Thread Starter 
Quote:
Originally Posted by tconroy135 View Post
You can and it should not be a problem with the GTS250, however a 300w PSU is probably not 300W its probably more like 200W(although this is plenty for the GTS250).

Now if you post this in the Power Supply section the PSU gurus will tell you running a PSU using only the 12v rails can cause the 12v rails to perform outside spec and thus cause instability.

That being said it really depends how much your value your GTS250, if you want to deliver perfectly clean power to it this is probably not the best idea, if you just want it to work, this will probably be just fine.
How can it cause instability?
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post #7 of 54
You can buy pci-e power units but they died of death very quickly, and theres something about them thats not too healthy, I would get ur self a new psu, or used a molex adapter until you do.

What do you mean testing? I dont quite get the scenario.
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post #8 of 54
Thread Starter 
Quote:
Originally Posted by andrewmchugh View Post
You can buy pci-e power units but they died of death very quickly, and theres something about them thats not too healthy, I would get ur self a new psu, or used a molex adapter until you do.

What do you mean testing? I dont quite get the scenario.
Instead of plugging CPU Fans, Case Fans,ect.. to my Computer PSU, I just use that 300W(indicated)to test em..
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post #9 of 54
What is your current PSU? Can you post a picture (or link to one) of the side sticker on it? It's very possible that it'll be more than enough power to run a GTS250 . There's also molex to 6pin adapters out there (assuming your PSU is powerful enough). If you're buying the card brand new, it should even come with them.
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post #10 of 54
I'm using dual PSUs.
Its no problem power other cards or fans or anything with a second PSU.
But if you main PSU is enough, just get a molex to 6-pin connector, or get from one of your friends who has a newer card (almost every card nowadays comes with a molex to 6-pin or 8-pin cable).
The GTS250 barely takes any power. More like 150W, so a 300W PSU should be more than enough.

About a 300W not giving 300W but 200W, its a bit odd thing to say.
Even an old tired 300W PSU, as long as its ok, will give a lot more than 200W.
It will not be very efficient, or it will ripple a bit, but not enough to cause any issues with the gts250.
Edited by Defoler - 1/27/11 at 8:19am
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