i5 3570k Asrock z77 Extreme3 Corsair Vengance 8GB CML8GX3M2A1600C9 MSI GTX 660 TF/OC 1TB Caviar Blue Case Elite 431
My PSU is just 550w Corsair, i want buy the 650W but they're out of stock.
From what i read, 550w is almost sufficient for that spec, but what i want to know is 550w PSU capable for overclocking?
VGA and Processor, only a little .. Like Processor @ 4.0 - 4.2Ghz
And just increase the VGA Core speed by a little amount
P.S Sry english is not my native language
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More about550w overclocking
Yeah, you don't even need to overvolt the I5 to get 4ghz (i've seen some at 4.2-4.3 with stock vcore) so no difference on the wattage VS stock I5 and overclocking an NVIDIA card with GPU boost doesn't require Vcore so you'll not add load on the PSU...
550w is enough for a single video card setup, you don't need more, Corsair make great PSU so you'll never have any trouble...