First thing's first, the intake fan. Here we see PC Power is using an Adda AD1212HB-A71GL fan. This is the exact same fan Seasonic uses on their own S12-II power supplies. It's a good quality ball-bearing fan, but not one known to be "silent". I'm not all together sure why PC Power & Cooling didn't ask Seasonic to go with a 135mm or 140mm fan, which would be slightly quieter. You can also see here that a baffle is used to force air back into the front portion of the power supply so it doesn't just escape out of the vents in the back.
The overhead shot reveals this power supply is based off of the SS-600ET platform. This platform is also known as the Seasonic S12II Bronze, which is available in a 520W and 620W. This unit's +12V capability allows it to fall right in between.
The first stage of the transient filtering resides on the PSU housing where the AC input and power switch are installed.
On this PCB, we have one X capacitor, four Y capacitors, and a coil.
Our transient filtering is then continued on the main PCB where there's two more ferrite coils, two more Y capacitors, another X capacitor and an MOV. There's also a fuse. We can certainly say the transient filtering is complete.
Here, on the primary side, we see a single rectifying bridge mounted to it's own heatsink, the PFC coil and a single Chemi-Con capacitor. To the left is the PWM/PFC controller. In the background is a heatsink with two transistors and one diode for APFC and one of the switching transistors.
The other switching transistor is on the opposite side of the primary heatsink. Note, in this photo, how Seasonic not only uses a compression washer to lock the mounting screw in place, but also a dab of thread lock. You can be sure that this screw isn't going anywhere no matter how many heat cycles this power supply goes through.
It's a little crowded here on the secondary side, but here we can confirm we're using a group regulated design, which explains the wacky crossload results, and more Chemi-Con capacitors. The little PCB that is perpendicular to the main PCB is where the supervisor IC resides.
Here we see the modular interface. This is about as simple as it gets. Here we see a few more Chemi-Con capacitors.
Fianlly, here is the underside of the PCB. Located here is the rectifier for the +5VSB rail. The soldering isn't as good as most other Seasonic power supplies, but it's acceptable.
Now let's get to the scoring...