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Is my 550W SMPS enough for GTX 470?

Last response: in Graphics & Displays
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April 20, 2010 1:35:37 PM

My SMPS is 550w. Also I have Core i5-750, 1 TB Seagate, 4GB RAM, DVD writer. I am planning on selling my current HD5770 and buying GTX470. Is my power enough?

More about : 550w smps gtx 470

a b Î Nvidia
April 20, 2010 5:00:15 PM

I wouldn't. Not unless you're running over 40a on a single rail.
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Best solution

April 20, 2010 5:28:43 PM

About the only 550 watt PSU I would trust to run a GTX470 is a Corsair 550VX (41 amp 12 volt rail):
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Or a similar high quality PSU.

Otherwise, go to a 650 watt PSU.
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a b Î Nvidia
April 20, 2010 5:30:53 PM

never heard of SMPS power supplies. Like mentioned above, I would run a solid and tested 550W for a GTX 470. It uses as much power as a 5970 for crying out loud.
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April 20, 2010 6:14:07 PM

Is there something you can't run on the 5770? I've never heard of SMPS either, but would check the ratings on those rails, but I'd guess no.
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April 20, 2010 7:07:27 PM

My Logisys 575 watt psu had the soul sucked out of it after a few hours with the GTX 470. It was only a $25 piece of trash compared to my new Corsair TX650W.
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a b Î Nvidia
April 20, 2010 7:11:42 PM

jay2tall said:
never heard of SMPS power supplies.

Switching Mode Power Supply, it's not a brand name.
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a b Î Nvidia
April 20, 2010 7:45:27 PM

delluser1 said:
Switching Mode Power Supply, it's not a brand name.

I know that. but for some reason i though the OP was refering to a brand. Aren't all PC PSU's SMPS?
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a b Î Nvidia
April 20, 2010 7:49:16 PM

jay2tall said:
Aren't all PC PSU's SMPS?

Yes
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April 20, 2010 7:51:23 PM

jay2tall said:
I know that. but for some reason i though the OP was refering to a brand. Aren't all PC PSU's SMPS?



I don't know the reason but everyone in INDIA uses SMPS instead of PSU/Power supply...

I guess Hardware shopkeepers made the term more popular :D 
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April 20, 2010 7:52:19 PM

@OP: Which Brand SMPS is it?

What resolution do you game at?
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April 21, 2010 12:57:58 AM

Stout92 said:
My Logisys 575 watt psu had the soul sucked out of it after a few hours with the GTX 470. It was only a $25 piece of trash compared to my new Corsair TX650W.


be happy it didn't kill your card when it died
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April 21, 2010 11:41:23 AM

naveenk said:
My SMPS is 550w. Also I have Core i5-750, 1 TB Seagate, 4GB RAM, DVD writer. I am planning on selling my current HD5770 and buying GTX470. Is my power enough?

It's cutting it pretty close but I would get a 600 atleast.
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April 21, 2010 4:29:18 PM

OP hasn't showed for the second time!!


Hey naveenk!
You can also post replies here!!!

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April 22, 2010 4:24:48 AM

Best answer selected by naveenk.
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April 22, 2010 11:18:21 AM

GURU 3D SAYS
Quote:
On your average system the card requires you to have a 550 Watt power supply unit. We recommend at least 35 Amps in total available on the +12 volts rails (accumulated).
And I have a Huntkey 550W PSU with two +12V rails adding upto 34A.
Refer the specs of my PSU here www.huntkeydiy.com/ProductsParticular?pid=50ede7b21de1d...

I really dunno anything about PSUs So I have a another question:

As I said it has two +12V rails adding to 34A. I currently have a HD5770 and I am going to remove and sell it and get a GTX470. After I get the GTX470 and after removing my current HD5770 can I connect these two +12v rails to my GTX470 OR will some other component will be using any of those two +12V rails bcoz I need BOTH of the two +12v rails and there are only 2 rails in my PSU in other words: are these +12v rail things only for GPUs ?? (I tried removing my cabinet to see it for myself but couldnt figure out anything).

So I if my current GPU HD5770 is removed and I get a GTX470 I should be able to connect both the +12V rails right? Please throw some light on this, I dont want to change my PSU.
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April 22, 2010 2:43:18 PM

I'm sorry to tell but you MUST change your PSU.
Yours is a low quality PSU.

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