I'm searching for the best about 1200W power supply (2x Xeon v3, 2x 980, 8 drives, 8 sticks of ram, few fans, overclocking, expandability). I came with a list of top brands: Corsair AXi Antec High Current Pro/Platinium CoolerMaster V Series EVGA G2 Kingwin Lazer PC Power & Cooling Silencer Seasonic XFX Black, XXX series From this i've chose Corsair AX1200i but strongly consider EVGA or Seasonic psus.. What are Your advices?
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Personally, I would only recommend a few brands. Seasonic is an OEM manufacturer for many branded power supplies including Corsair, Cooler Master etc. But you may need to dig deeper to know if those branded PSU are based on Seasonic. But I believe the AX1200i is based on Flextronic PSU, which is equal or maybe even slightly above the Seasonic. Personally, I'm using a Seasonic based Corsair TX650W which is pretty old now.
have never used a kingwin, but the rest are reputable brands. reviews days have passed me by and i'm extremely lazy these days so I just buy corsair (knowing that you get at the very least a certain quality assurance )
Unfortunately, many Corsair models are using CWT, including low end CX and mid range RM models. It can be very confusing to buy a "good" Corsair PSU, as some series may use different OEM!