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Old 07-01-2008, 09:08 PM   #1
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Default i need help choosing a PSU

okay i am in the middle of my first build
and i need some help
(i know you guys can help me)
i need a psu and buying a $350 1.1 KW PSU just isn't in the cards
but i would still like to get one that has plenty of power for any case mods that i will do
and i have a few up my sleeve
here is what i have so far
BB PC
http://www.tigerdirect.com/applicati...033&CatId=2405
GPUs 2 of these (will be working independently of each other)
http://www.newegg.com/Product/Produc...82E16814130319

now for what i will get to finish this pc
optical drives
CD
http://www.newegg.com/Product/Produc...82E16827106084
DVD
http://www.newegg.com/Product/Produc...82E16827135168
Heat sink
http://www.newegg.com/Product/Produc...82E16835186134
ram fan
http://www.newegg.com/Product/Produc...ir%2bdominator
tv tuner card
http://www.newegg.com/Product/Produc...82E16815306006
sound card
http://www.tigerdirect.com/applicati...?EdpNo=2687630

k that's the basics
now for my fun
Fans
120mm
Rear
http://www.frozencpu.com/products/25...?tl=g36c15s518
Front
http://www.tigerdirect.com/applicati...8781&CatId=802
those will run all of the time
i will also get a thermometer and a front bezel
http://www.frozencpu.com/products/68...tl=g12c133s492
http://www.frozencpu.com/products/38...c137s292#blank
now i have one of these
http://www.frozencpu.com/products/98...?tl=g34c17s285
on the first 2 switches there will be a lot of custom rigged LEDs
each using 12v
and for the next 4 its one of these
http://www.frozencpu.com/products/72...l?tl=g36c15s58
each pulling 12v

i was going to use this PSU
http://www.newegg.com/Product/Produc...82E16817814012
but the $ and my increasing anxiousness to use this monster ASAP leads me to wonder
do i really need that much power?
i also seen these 2
http://www.newegg.com/Product/Produc...82E16817182072
http://www.newegg.com/Product/Produc...82E16817148035
what are your opinions
or suggestions for my monster of a pc build?
thanks for any help
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Old 07-02-2008, 12:08 AM   #2
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Default Re: i need help choosing a PSU

That thing comes with a 600W Ultra X-Pro power supply. That's a very good unit and should be enough for your needs.

But, if you feel you need a more "stout" unit, a good quality power supply would be an Antec TPQ-850 850W for $149.99.
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Old 07-02-2008, 12:17 AM   #3
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Default Re: i need help choosing a PSU

The PSU that came with the barebones kit will probably be enough. You may as well try it. If not, then here are a few good quality pretty cheap PSUs:
http://www.newegg.com/Product/Produc...82E16817153039
http://www.newegg.com/Product/Produc...82E16817139006
http://www.newegg.com/Product/Produc...82E16817703009
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Old 07-02-2008, 03:12 PM   #4
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Default Re: i need help choosing a PSU

what about the two that i was looking at?
are they just crappy or what?
http://www.newegg.com/Product/Produc...82E16817148035
http://www.newegg.com/Product/Produc...82E16817182072
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Old 07-02-2008, 04:05 PM   #5
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Default Re: i need help choosing a PSU

Quote:
Originally Posted by hedoe View Post
what about the two that i was looking at?
are they just crappy or what?
http://www.newegg.com/Product/Produc...82E16817148035
http://www.newegg.com/Product/Produc...82E16817182072
Yeah, pretty much. You want to stick with reliable brands for PSUs.
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Old 07-02-2008, 04:26 PM   #6
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Default Re: i need help choosing a PSU

cool thanks for the info
im eyeballing that Antec 850W
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Old 07-02-2008, 04:39 PM   #7
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Default Re: i need help choosing a PSU

You mean this one?
http://www.newegg.com/Product/Produc...82E16817371009

To be honest, it's a waste. Most of your computer's components draw power from the +12 volt rail. It is most important to have a lot of power (measured in amperes, or amps) on the +12V rail(s). That 850 watt Antec has a combined total of 72A on the +12V rails.

Now, look at this 700W Thermaltake I posted for $50 cheaper after MIR:
http://www.newegg.com/Product/Produc...82E16817153039
It has the exact same +12V rail configuration as that 850W Antec. It's sort of a marketing scheme, to beef up the other rails that aren't as important, in order to rate it as higher wattage.
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Old 07-02-2008, 05:47 PM   #8
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Default Re: i need help choosing a PSU

do you think that a 700W PSU will be enough?
for everything that will go into that case
including 24+ LEDs?
and 3 12v fans?
thats my only concern
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Old 07-02-2008, 08:32 PM   #9
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Default Re: i need help choosing a PSU

Quote:
Originally Posted by freestyler105 View Post
To be honest, it's a waste. Most of your computer's components draw power from the +12 volt rail. It is most important to have a lot of power (measured in amperes, or amps) on the +12V rail(s). That 850 watt Antec has a combined total of 72A on the +12V rails.

Now, look at this 700W Thermaltake I posted for $50 cheaper after MIR:

It has the exact same +12V rail configuration as that 850W Antec. It's sort of a marketing scheme, to beef up the other rails that aren't as important, in order to rate it as higher wattage.
Hmm. . .

Lets see:
Antec 850W
4 - +12V rails @ 18A
+3.3V @ 25A
+5V @ 30A

Thermaltake 700W
4 +12V rails @ 18A
+3.3 @ 30A
+5V @ 28A

It looks to me like Thermaltake "beefed up the other rails that aren't as important, in order to rate it as higher wattage."

I wouldn't call the Antec a waste at all. It has high power, great reliability and is backed by excellent customer service. 150W more than the Thermaltake at the same price sounds like a good deal to me. I haven't known any of the high quality PSU manufacturers to "fudge" it's numbers to get a higher rating.
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Old 07-02-2008, 09:05 PM   #10
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Default Re: i need help choosing a PSU

Quote:
Originally Posted by Atomic Rooster View Post
Hmm. . .

Lets see:
Antec 850W
4 - +12V rails @ 18A
+3.3V @ 25A
+5V @ 30A

Thermaltake 700W
4 +12V rails @ 18A
+3.3 @ 30A
+5V @ 28A

It looks to me like Thermaltake "beefed up the other rails that aren't as important, in order to rate it as higher wattage."

I wouldn't call the Antec a waste at all. It has high power, great reliability and is backed by excellent customer service. 150W more than the Thermaltake at the same price sounds like a good deal to me. I haven't known any of the high quality PSU manufacturers to "fudge" it's numbers to get a higher rating.
What are you talking about...who cares about the +3.3 and +5V rails? They don't matter, no matter what both PSUs are gonna have more than enough power there. All that matters is that the Thermaltake has the same amount of power on the +12V rails for less money.

And after the MIR, the Thermaltake is $50 cheaper. And they pretty much have the same amount of power (on the +12V rails, which is all that really matters)
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