Hi i'm currently working on building a new computer and i came to where i needed to pick out a power supply. I read up in several places about 12v single rail or multiple rail, and it seems the general consensus is that their isnt really a difference. neither one will give you much of an advantage and as long as theyre well built by good manufacturers, theyll each be able to do the same thing.
but then i talked to my friend, who insisted that with a single rail psu, i wouldn't be able to run 2 graphics card (sli or crossfire) or have multiple hard drives. that i needed a multiple rail psu to split the power for that, i tried correcting him that it didn't make a difference but he was sure it did.
these we're the two single rail psu i was looking at:
750w 12v60a
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006
850w 12v70a
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139009
and here's the multi rail psu he reccomended instead:
620w 3 12v18a each
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139002
the computer im building initialy would be fine with any of these threes, but i kind of want it to be the last computer i build so it being able to last through stronger video cards (including sli or crossfire) and multiple hard drives is ideal. also i'm just noticing the 850w one isnt core i7 compatable, how is that possible?
but then i talked to my friend, who insisted that with a single rail psu, i wouldn't be able to run 2 graphics card (sli or crossfire) or have multiple hard drives. that i needed a multiple rail psu to split the power for that, i tried correcting him that it didn't make a difference but he was sure it did.
these we're the two single rail psu i was looking at:
750w 12v60a
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006
850w 12v70a
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139009
and here's the multi rail psu he reccomended instead:
620w 3 12v18a each
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139002
the computer im building initialy would be fine with any of these threes, but i kind of want it to be the last computer i build so it being able to last through stronger video cards (including sli or crossfire) and multiple hard drives is ideal. also i'm just noticing the 850w one isnt core i7 compatable, how is that possible?