Thermaltake Toughpower Grand 650W vs Seasonic M12II 620W

the 650 is but the lesser ones are not so I read but that's all I see is this on that issue

A PSU with a DC-DC secondary will be officially compatible with Haswell, which the S12II/M12II 650w+ has. The S12II/M12II Bronze 430~620w and the units that are based on it does not and is a group regulated design.


don't hold me to it I just remember this from way back
 
EVGA 500 Bronze is not Intel Haswell compatible when tested according to Intel's test procedures. The +5V rail drops below the minimum +4.75V allowed by ATX12V specs. It is based on the cheaper group regulated design. The OEM is Heroichi, aka HEC, aka Compucase. Its hold-up time is too short to meet AT12V specs.

The SeaSonic G-Series 550W has tighter voltage regulation than the Cooler Master Silent Pro 550W that is made by FSP based on FSP's Aurum platform.
 

JKDH

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I think I'll go with SeaSonic S12II 520. Im on tight budget now. I need to buy a Gtx 750 Ti. I'll just disable the sleep on BIOS.

Also my case got a cable management compartment to hide the cables so doesnt matter if non modular.