Reviews - EVGA Supernova GS 850W
Sample Provided by: EVGA (By OklahomaWolf on Mon, Feb-16-2015)

Page 5 - Disassembly

A Teflon nano-steel bearing fan? Looks sleeve bearing to me. That said, EVGA insists and has shared proof with me that this fan does have those special bearings. It just happens to have the same part number as a sleeve bearing fan, on both the fan itself and in the official datasheet. I'm not sure why Globe didn't change the part number to reflect the different bearing, but I would suggest that they do so to prevent future confusion.

Yup, she's a Seasonic all right. How much do you want to wager there's no thermal paste between the two 12V heatsink sections? I haven't seen this design come with the stuff once, and even though it's not necessary for this design I'll be adding some.

Once more, the heatshrink around the fan switch wires is a problem in that it is completely useless. It doesn't shrink far enough to stay in place. Seasonic, you need to heatshrink the wires separately, if you want the heatshrink tubing to stay in place.

A good deal of the line filtering is found by the AC receptacle. Four Y caps, one X cap, one coil.

The fuse is also found there.

Soldering on a Seasonic is very often among the best in the world these days. However, sometimes you're the windshield and sometimes you're the bug. This is not one of Seasonic's better solder jobs. There are ugly splashes of flux in places and I see more than one messy joint for me to fix up.

More line filtering right here. Two more Y caps, two more coils, two more X caps, and one TVS diode.

Four 5R399Ps make up the main switchers. Nearby, we find two GBJ1506 bridges.

Near the primary side Hitachi capacitors, we get two 6R199Ps and a diode for the PFC parts.

I knew it - no thermal paste. Time to get out the Arctic Silver, making sure not to block the holes in the heatsink.

Capacitors on the secondary come from Nippon Chemi-Con and Fujitsu/Nichicon. All top notch stuff. That's a CM6901 PWM controller on the right.

The minor rail VRM uses one APW7159 and six 0906NS parts to supply the 3.3V and 5V rails. Again, the soldering is subpar for Seasonic in places.

On the modular connector side of things, we find a bunch of Chemi-Con polymers and space for an extra connector.

Finally, a Weltrend WT7527V provides protection for this unit.



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