Seasonic M12 600w Modular PSU

Looking Inside

My favourite part of any power supply review has to be taking the unit apart and having a poke around inside. By doing this we can usually get a good idea about the quality of components used and how the unit is likely to perform in our tests.

Seasonic M12 600w Inside Seasonic M12 600w Inside
From the images above, we can see that the M12 has two yellow transformers placed on the centre of the board. The larger of the two is most likely responsible for the +12v rails with the smaller being responsible for +3.3v and +5.0v rails. Placed in between the transformers is a single, reasonably sized black capacitor.

Turn the PSU around, and we can see two wire-wound inductors sitting below one of the large ‘claw’ shaped heatsinks. Inductors perform a similar role to capacitors and assist in providing steady, clean voltage to the components in your computer system.

Seasonic M12 600w Fan Seasonic M12 600w Fan
As previously mentioned, the S12 makes use of two fans manufactured by ADDA (1x120mm and 1x60mm) in order to cool all components inside the unit. The specifications of these fans can be seen below:

Model: AD0612HB-D71GL
Size: 60mm x 60mm x 15mm
CFM: 16.6cfm
dBA: 32.4dba
RPM: 4500rpm

Model: AD1212HB-A71GL
Size: 120mm x 120mm x 25mm
CFM: 85.2cfm
dBA: 39.1dba
RPM: 2200rpm

More information on ADDA fans can be found here.