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Is the extreme power supply calculator more accurate than a graphics cards recommended wattage?

Last response: in Components
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September 20, 2013 3:17:46 PM

I am planning a nice system upgrade for a friend who has a pretty old system. I am eyeing the GTS 450 currently because it offers decent performance and is on sale right now. The only problem is, the GTS 450 recommends a minimum of 400 watts whereas the psu calculator says a mere 313 watts is needed. I am currently only able to fit in 350 watts of power due to some size restrictions so I am wondering if that will be enough?
a c 139 ) Power supply
a c 229 U Graphics card
September 20, 2013 4:18:13 PM

I don't go under the manufacturer's recommended number, if for no other reason than warranty compliance.

http://www.guru3d.com/articles_pages/geforce_gts_450_re...

Quote:
Recommended Power Supply

Here is Guru3D's power supply recommendation:

GeForce GTS 450

On your average system the card requires you to have a 500 Watt power supply unit.

GeForce GTS 450 in SLI

A second card requires you to add another ~100 Watts. You'll need a 600 Watt power supply unit.

If you are going to overclock massively, then we do recommend you purchase something with some more stamina.


keep in mind this review was written in 2010 .... use of a modern 2013 era CPU will reduce that system's power needs.
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September 20, 2013 4:36:21 PM

The recommended wattage usually overestimates to make up for people buying poor quality PSUs. If your 350 watt is a quality one, then you should have no issues. What brand is it?
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September 20, 2013 4:51:04 PM

It is the antec basiq BP350.
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September 20, 2013 4:51:47 PM

thesuperguy said:
It is the antec basiq BP350.


you should be fine
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a b ) Power supply
September 20, 2013 5:46:21 PM

your gpu can take 250W on heavy load...
maybe is better to put your full specs
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September 20, 2013 5:52:11 PM

E6300

3 RAM

1 sata 7200rpm hard drive

not much else I think is of importance.
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a b ) Power supply
September 20, 2013 6:41:19 PM

add 60 watts for the cpu
250W + 60W = 310W
so i am not sure if you will be able to use your psu... its better to have a new one with higher wattage
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Best solution

a b ) Power supply
September 21, 2013 1:09:38 AM

That psu can deliver 336w on the 12v lines, I can't see that setup drawing more than 300w.

I think it will be fine unless you have a multitude of drives and led fans attached.

That PSU is available in higher wattage forms also and its the same size as yours 3.5 x 5.8 x 5.5

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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