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Old 05-29-2009, 10:48 PM   #1
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Default How much power do I need?

Hi. I am going to build a new computer for light to moderate gaming. I am going to use a 3.2 GHz AMD phenom II x4 CPU and an NVIDIA geforce 9800 gfx card. I am wondering exactly how much power I need. I have never built a computer nearly this powerful before, so maybe you can help me out. I currently have a 580w, but I am sure that isn't enough, so I am thinking a 700w, but am still unsure about that. what do I really need? thanks.
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Old 05-29-2009, 10:51 PM   #2
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Default Re: How much power do I need?

lol i think that 580w will be perfect unless its a very old PSU. 700w is way to much for that rig
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Old 05-29-2009, 10:52 PM   #3
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Default Re: How much power do I need?

Overall Wattage is usually the second thing you look at.

How many watts are on the 12v rail is what matters most, which is displayed as amps on a power supply. Do you have a link/specs of the current power supply you have now? 580 watts should be plenty depending on your 12v rail
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Old 05-29-2009, 10:57 PM   #4
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Default Re: How much power do I need?

WOW that's surprising. A friend told me that i would need like 800, and I thought that 580 wasn't much. I plan to do some overclocking too, so will it be enough for that? I want to OC to 3.8.
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Old 05-29-2009, 10:59 PM   #5
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Default Re: How much power do I need?

Quote:
Originally Posted by foothead View Post
WOW that's surprising. A friend told me that i would need like 800, and I thought that 580 wasn't much. I plan to do some overclocking too, so will it be enough for that? I want to OC to 3.8.
Again, we need the specs/webpage of your current PSU. Depending on where you bought it, you may find it on newegg.com...or the actual product page from the company.
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Old 05-29-2009, 11:00 PM   #6
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Default Re: How much power do I need?

Well regardless of specs 580watt wont be enough to overclock a Phenom II to 3.8ghz so what would be your budget for a new psu?
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Old 05-29-2009, 11:00 PM   #7
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Default Re: How much power do I need?

If it's a quality 580W, you should be fine. Can you tell the make and power outputs of your power supply?
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Old 05-29-2009, 11:07 PM   #8
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Default Re: How much power do I need?

I'm not really sure what model it is, but I know it is at least 2 years old. I bought it for my old gaming rig when its old one burned out. It was only llike $50, so i thnk it might be time for a new one. Ummm... I would rather only spend about $50, but I will go to $100 max if necessary.
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Old 05-29-2009, 11:14 PM   #9
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Default Re: How much power do I need?

Here ya go: OCZ StealthXStream OCZ500SXS 500W

The recommended power supply for a 9800GT is only 400W. This OCZ will give you plenty of power and is very reliable.
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Old 05-29-2009, 11:17 PM   #10
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Default Re: How much power do I need?

Okay. If that's all I need, then will this one work?
http://www.newegg.com/Product/Produc...82E16817152028
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