Internals

Just four screws, and we're inside the REVOLUTION D.F. X. And the initial reaction is that there's quite a bit of space in here. With most significant heat producing components such as the bridge rectifiers being cooled by the singular heatsink, the layout is quite open. The REVOLUTION D.F. X utilizes a half-bridge resonant LLC topology.


On the primary filtering side two Y caps and one X cap right on the AC socket. Further down on the PCB we have two chokes, two more Y caps and one more X cap. There's also an MOV hiding under the second choke. Two bridge rectifiers are used in parallel on this unit.

The supervisor IC taking care of the PSU's protections is the GR8329E.


As you might have noticed, there's no separate DC-DC converter board to step down the +12 V voltage to +5 V and +3.3 V. All the components for the DC-DC conversion are built right onto the main PCB. Two APW7164 buck converters are responsible for stepping down the voltage for the two smaller rails respectively, each handling two DC3056CX ICs.

Some of the components, including the PFC and resonant controllers are hidden by a glossy plastic cover.


The modular cable connector board is quite compact with quite a few solid state capacitors helping with the ripple suppression. The same board is where the RGB side panel is also plugged in.


The bulk capacitors in this unit are two Rubycon 470 uF / 420 V MXE caps. All other electrolytic caps are either Rubycons or Nippon Chemi-Con. As you can see in the images, the capacitors and chokes have quite a bit of rubbery goop to eliminate any potential electrical noise. This is a common trend for this PSU.


The back of the PSU is quite clean with overall good but definitely not perfect soldering quality.


For the fan Enermax uses their own branded 120 mm dual ball bearing fan (PFERS-12H) rated at 2300 RPM and 12 V / 0.3 A. It is partially covered by a plastic cover to help direct the fresh air where it is needed the most. As Enermax points out, this is a three-phase fan, and it does have a 5 pin connector which plugs right into the PCB.

We must also mention that the fan utilizes Enermax's DFR (Dust Free Rotation) technology. This is a mechanism which upon the startup of the PSU briefly spins the fan in the opposite direction, which should loosen up the dust collected and reduce the dust accumulation on the fan over time.