Difference between NF4 SLI motherboards

Jan 15, 2005
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I noticed the the Gigabyte has Dual Power System and MSI has VPower. Both appear to improve the stability of power coming into the board. The Asus doesn't seem to have anything. Does anyone know if this is a big deal or not. Would a good PSU do the same thing? Is it more important if your using SLI?