^^
agreed, from alot of reviews, Corsair TX650 is much more stable than TX750, but dnt worry, the PSU u (to the OP) hv ordered, is really good, and better than Antec, Its not abt the +50W mare but the quality that counts,
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Also, if at all u are using a UPS, then i must tell u that the Corsair PSU is an ACTIVE PFC PSU and hence required a PURE SINEWAVE UPS..
else, (in the long run) u may experience, screen black outs, unresponsive CPU, hissing noise from the PSU etc..etc.. (it occurs in many cases and sum are lucky NOT to face such issues) with a ACTIVE PFC PSU+non SINEWAVE (stepped or Modified sine wave) UPSes... so get this funda right...
I hv researched alot on this (for abt 6 months) hence advisin' u on these terms..
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Cheers n e-peace...