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afterdawn.com > forums > pc hardware > building a new pc > psu help
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PSU help
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aaWee
Junior Member
_ 		16. April 2010 @ 11:12 _ Link to this message    Send private message to this user   
I need help to choose between:
Chieftec APS-500S, 500W, two +12V rails at 18A link
or
Silverstone Strider Essential SST-ST50F-ES, 500W, one +12V at 34A link
?????????????????
The computer is meant for medium playing. Other components will be:
AMD Phenom II X4 945
nVidia GeForce 8800GT
Kingston ValueRAM 2x2GB DDR3 1333MHz
Asus M4A77TD AM3
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kgtrain
Member
_ 		16. April 2010 @ 23:15 _ Link to this message    Send private message to this user   
The reason there are increasingly more and more multiple rail PSU's is because it provides for more stability, since components drawing power from the 12v rails do so at different rates. The rails will allow for a balancing of the power draw to guard against a rail being overwhelmed and shutting down. As long as you buy a quality PSU, single versus multi-rail makes no difference.
I would go with the Silverstone Strider 500W.
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Intel Q6600 @ 3.6 (1.4 vCore) | Thermalright Ultra 120 eXtreme | Gigabyte EP45-DQ6 | Corsair Dominator 4x2GB DDR2 1066MHz (5-5-5-15 @ 2.1Volts) | WD 1TB SATA II | 2 x XFX 4890 1GB CrossFire @ 950Mhz Core, 1200Mhz Memory | Samsung P2270 22" 1080p | Antec Quattro 1000W | ASUS TA-M1 chassis |
sammorris
AfterDawn Addict

4 product reviews
_ 		17. April 2010 @ 16:47 _ Link to this message    Send private message to this user   
The Silverstone is the better unit, but are these the only two options? A Corsair CX 400W would be a better choice.
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
KillerBug
AfterDawn Addict

1 product review
_ 		19. April 2010 @ 00:27 _ Link to this message    Send private message to this user   
Multiple 12V rails are just to save money...it is cheaper to make 2 20A rails than a single 40A rail. If your voltages are dropping or rising on any of the RAILS, there is a problem!
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sammorris
AfterDawn Addict

4 product reviews
_ 		19. April 2010 @ 06:08 _ Link to this message    Send private message to this user   
Really? I would have thought it would be the other way round.
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Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
KillerBug
AfterDawn Addict

1 product review
_ 		20. April 2010 @ 00:51 _ Link to this message    Send private message to this user   
Nope...that is why single-rail PSUs tend to me more expensive. My current PSU has 4 12V rails because that was a whole lot cheaper than making a single 80A 12v rail.
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sammorris
AfterDawn Addict

4 product reviews
_ 		20. April 2010 @ 06:28 _ Link to this message    Send private message to this user   
Typically, single rail PSUs are cheaper than multi-rail PSUs but that's presumably because they are also modular. With top end PSUs, it's less a case of cost I expect, more that the scale of making a single rail with such a huge current limit isn't cost-effective. With lower wattage figures I don't expect there's much to be gained from using multi-rail, as surely more components are required.
[ + quote]


Afterdawn Addict // Silent PC enthusiast // PC Build advisor // LANGamer Alias:Ratmanscoop
PC Specs page -- http://my.afterdawn.com/sammorris/blog_entry.cfm/11247
updated 10-Dec-13
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