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Power Supply question for my new build

Last response: in Components
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August 21, 2009 3:59:38 AM

I am building a new PC, my budget is currently 1200-1300 dollars.

The Specs are as Follows:
GTX275
Phenom II 955 BE
790FX based mobo
6 gigs of DDR3
Coolermaster case with 4 120mm fans
1TB Seagate SATA HDD and a DVD-RW.
Windows 7 Pro.

The question I have is about the power supply for the rig. I currently have a Thermaltake Toughpower 850W psu that is in my current PC. I believe it is in the 62 Amp class. Will this be enough? The specs as listed eats up the $1200 I had budgeted. I really do not wish to spend the $300 or more that it will take to buy a beefier PSU but I will if I must.
a c 248 ) Power supply
August 21, 2009 5:29:33 AM

Your entire system will use a lot less power than an 850 watt psu is capable of delivering. Your psu is more than you need. You should be okay.
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August 21, 2009 5:55:48 AM

Does that include Amperage? Its mainly the Amps I'm worried about. I know Watt wise I will be more than ok. I just want to make sure it doesn't eat up more amps then a given 12V rail can supply. I think I accidentally burned up my x1950xt GFX card that way on my previous PSU(it was a 36A/650W PSU). I just want to make sure I don't do that again.

Thanks for the help!
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a c 243 ) Power supply
August 21, 2009 10:20:53 AM

That includes amperage.
Your previous psu probably wasn't very good , only 36 amps out of a 650 watt psu isn't a good sign,most good quality 550's can do better than 40 amps.
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a c 144 ) Power supply
August 21, 2009 11:25:17 AM

A good 650 watt PSU will put out at least 50 amps at 12 volts. 36 amps is <insert scatalogical adjective here>.
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