PSU

[projectsi]

O.k I've been hearing stuffy about the PSU rails about how 1 rail is better than 2 and stuff so I just want to be sure on this... Is 1 rail better than 2?

can someone explain why or why not to me please?

 

[treefrog07]

It probably doesn't matter on a quality, modern 80+ certified PSU. If you have all your 12V power (amps) on one rail, then it is much easier to know that your GPUs, HDDs, etc. have enough power for your system. On older PSUs, you have to figure out whether or not the 12V on multiple rails will power your board, HDDs, opticals, FDD, and GPUs, especially when you're trying to estimate your power need for a SLI or Crossfire configuration. You can read more here.