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A Single rail good ?

Last response: in Components
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July 17, 2010 8:01:28 AM

I am planning to get this power supply
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Instead of this one
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The corshair one has single rail while the antec has 4 rails,
Which on is better and will be more future proof ?
I cant have things blowing up and stuff.
Does the corshair have over current protection ?

More about : single rail good

a b ) Power supply
July 17, 2010 11:45:22 AM

The Antec TPQ only fits in certain cases also so be aware of that. The corsair would be a great unit and so would the Antec. Single or Multiple rails doesn't really make all that much a difference as long as the PSU is a quality unit and has the power you need thats all that matters. I believe that I did read somewhere for the GTX 480 a single rail PSU is recommended, but I see no reason to make the single or multiple rail config be the determining factor in a PSU.

850 watts is a huge amount of power what are your system specs?
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July 17, 2010 7:55:46 PM

saaiello said:
The Antec TPQ only fits in certain cases also so be aware of that. The corsair would be a great unit and so would the Antec. Single or Multiple rails doesn't really make all that much a difference as long as the PSU is a quality unit and has the power you need thats all that matters. I believe that I did read somewhere for the GTX 480 a single rail PSU is recommended, but I see no reason to make the single or multiple rail config be the determining factor in a PSU.

850 watts is a huge amount of power what are your system specs?

Antec Nine Hundred Two Black Steel ATX Mid Tower Computer Case
http://www.newegg.com/Product/Prod [...] 6811129058

Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Prod [...] 6822136533

ASUS M4A89TD PRO/USB3 AM3 AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
http://www.newegg.com/Product/Prod [...] 6813131655

XFX HD-587X-ZNFC Radeon HD 5870 1GB 256-bit DDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

CORSAIR HX Series CMPSU-850HX 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory Model F3-16000CL9D-4GBRH
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz Socket AM3 125W Six-Core Desktop Processor HDT90ZFBGRBOX
http://www.newegg.com/Product/Prod [...] 6819103849
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a c 243 ) Power supply
July 17, 2010 8:45:02 PM

saaiello said:
The Antec TPQ only fits in certain cases also so be aware of that.

The TPQ is a standard ATX unit and will fit most any case, it's the CP850 that follow's a different form factor and only fits certain Antec cases.
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July 17, 2010 8:51:30 PM

delluser1 said:
I'd take the Corsair over the TPQ.
650 watts would do unless you plan to Crossfire.

I'm planning to crossfire to kepp it future proof.
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a c 137 ) Power supply
July 17, 2010 9:16:41 PM

AMD 5870 requires only 600w and 4 6-pin pci-e power connectors for crossfire.
http://www.amd.com/us/products/desktop/graphics/ati-rad...

I think 850w is a bit much when 750 or even 650 will do. An overspec'd psu will operate way below it's optimum efficiency.

I suggest the XFX 750w unit:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

There is a lot to love:
1) cheaper by $50
2) modular
3) silver certified efficient
4) Very good reviews

Also, single rail vs multi rail does not really mean much. There are marketing arguments for either. All quality units are safe.
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July 17, 2010 9:25:07 PM

geofelt said:
AMD 5870 requires only 600w and 4 6-pin pci-e power connectors for crossfire.
http://www.amd.com/us/products/desktop/graphics/ati-rad...

I think 850w is a bit much when 750 or even 650 will do. An overspec'd psu will operate way below it's optimum efficiency.

I suggest the XFX 750w unit:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

There is a lot to love:
1) cheaper by $50
2) modular
3) silver certified efficient
4) Very good reviews

Also, single rail vs multi rail does not really mean much. There are marketing arguments for either. All quality units are safe.

but wait you forgot, I have Hardrives ,Fans ,etc plug in too. so it equals around maybe 700 or 650w
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a c 137 ) Power supply
July 17, 2010 9:45:53 PM

ipenguins said:
but wait you forgot, I have Hardrives ,Fans ,etc plug in too. so it equals around maybe 700 or 650w


Everybody has fans, cpu,ram,dvd, a couple of hard drives etc. They do not amount to very much. The AMD recommendations include normal configurations, and are probably conservative to account for lesser quality psu's.
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July 17, 2010 9:56:30 PM

geofelt said:
Everybody has fans, cpu,ram,dvd, a couple of hard drives etc. They do not amount to very much. The AMD recommendations include normal configurations, and are probably conservative to account for lesser quality psu's.

Well its good to have some extra power (:
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a c 137 ) Power supply
July 18, 2010 3:59:29 AM

ipenguins said:
Well its good to have some extra power (:

Up to a point,you are correct. But... a PSU operates most efficiently in the middle third of it's range. An overly strong psu will not be as efficient as it can be.
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July 18, 2010 5:43:36 PM

geofelt said:
Up to a point,you are correct. But... a PSU operates most efficiently in the middle third of it's range. An overly strong psu will not be as efficient as it can be.

If you use the newegg one, i got around 800w for a crossfire , it looks like its really 700w but why not have extra just in case ?
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July 28, 2010 4:58:07 AM

Best answer selected by ipenguins.
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