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GTX 550 TI 400 watt psu?

Last response: in Graphics & Displays
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February 8, 2012 12:30:46 AM

i have a 400 watt dynex branded PSU

specs are

will it be enough to power a system consisting of : x2 555 BE amd
4gigs of corsair ram
150gb hdd
regular cd rom drive
and a 550ti without problems? thank you

More about : gtx 550 400 watt psu

February 8, 2012 12:51:50 AM

I highly doubt it will be enough, the 550 Ti needs 24A on the 12V and you only have 15A.
February 8, 2012 12:54:55 AM

asnorton44 said:
I highly doubt it will be enough, the 550 Ti needs 24A on the 12V and you only have 15A.


arent there 2 12v rails though?
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a c 179 U Graphics card
February 8, 2012 1:07:16 AM

The 550 Ti only need 22 amps and both 12v rails are 30a. Problem is that PSU is one of the worst PSU's out there. I would not chance it with my 550's. I am sure asnorton 44 miss seeing the second 12v rail I almost did.

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a b U Graphics card
February 8, 2012 1:13:25 AM
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You will want a new PSU. Dynex is iffy.

I have this one, could run a 550ti no problem: http://www.newegg.com/Product/Product.aspx?Item=N82E168... Antec is one of the best around.

Its bigger brother has 2 PEG power connectors for GPU's in case you ever want to upgrade to a more powerful GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And if you buy like today, get their even bigger brother, on sale for $30 off! http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Now that my Antec fanboyism is done, I'll give you a more objective suggestion and that is that any unit from Antec, Seasonic, XFX, and Corsair would work just fine. Those are the best PSU brands.
a c 179 U Graphics card
February 8, 2012 1:32:17 AM

^^+1
Good job VetteDude. I would think about the fucture. What am I going to do later on? Am I going to buy a better card? which you will. the 550's are the weakest of the GTX 5xx series. I wish I hadn't got mine.

So if you are going to upgrade later on I would get the bigger of the PSU's shown. That way you are covered later on. All this is just food for thought. And I wish you the best on getting a new rig. Good luck to ya.
February 8, 2012 2:45:34 AM

Best answer selected by grapez.
February 8, 2012 2:46:36 AM

Vettedude said:
You will want a new PSU. Dynex is iffy.

I have this one, could run a 550ti no problem: http://www.newegg.com/Product/Product.aspx?Item=N82E168... Antec is one of the best around.

Its bigger brother has 2 PEG power connectors for GPU's in case you ever want to upgrade to a more powerful GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And if you buy like today, get their even bigger brother, on sale for $30 off! http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Now that my Antec fanboyism is done, I'll give you a more objective suggestion and that is that any unit from Antec, Seasonic, XFX, and Corsair would work just fine. Those are the best PSU brands.


thank you for the informative post. so many things you have to upgrade when upgrading a computer. sucks being a teenager without a job. Thanks.
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