Originally Posted by yuksel911
He don't need 8+2, quality 4+1 is enough for quad cores.
I disagree. A quality 4+1 setup in most cases attributes to a TDP rating of 125W, which means that the motherboard is designed to run 125W TDP processors at stock speeds using the stock cooler. The overclocking headroom wouldn't be much without going in for additional VRM cooling. Even then, cooling only addresses the heat issue, not increase the amperage intake capability of the MOSFETS. Problems may not be faced initially or even after a significant period of time but degradation of the MOSFETS would eventually take place if the chip is run at a high OC, say 3.8-4.2 Ghz @ 1.55+v, over an extended period of time. An 8+2 phase design raises the TDP support to a more overclock-friendly 140W. That gives WAY more headroom for serious OCing, not to mention add future-proofing to the mix
. There are exceptions when a 4+1 setup is rated for 140W CPUS. That, however is not an an accurate figure to go by, because realistically, there is no 4+1 setup that has the amperage capability to handle 140W, the same way how there isn't any 3+1 setup that can realistically handle 125W CPUs. ASUS gets away with such a move(rating select 3+1 boards to handle 125W CPUs) because of their trademark VRM protection features. The moment a 125W CPU is popped in and put under intense load, CPU throttling kicks in more often than not, resulting in performance loss.
So a 4+1 setup IS enough for a quad, but at stock speeds with a substancial OC with proper VRM cooling at the very most.
Boards like the ASrock 970 Extreme 3, however, are exceptions. It uses a properly cooled/heatsinked 4+1 phase design with quality components used.Edited by PunkX 1 - 12/4/11 at 12:52pm