Reviews - EVGA Supernova T2 1600W
Sample Provided by: EVGA (By OklahomaWolf on Mon, Jan-26-2015)

Page 5 - Disassembly

We begin this page with a shot of a ball bearing fan from Globe.

A familiar and yet different sight greets us as we look at the innards. Looks like they went with different heatsinks on the PFC daughterboards, and those two transformers right of center certainly aren't something I've seen before.

Like the P2 and G2, there are no line filtering components on the receptacle board.

Super Flower's best soldering jobs are fantastic, just below Delta level and on par with most of the really good OEMs. This... is not one of their best solder jobs. I see enough joints with too little solder in here to score against. We know what they're capable of thanks to the P2 and G2 reviews, we just don't quite get there this time.

This could explain the ripple bug in this unit, but I tend to doubt it. All the same, I am Mr. Monk with a soldering iron and I have every intention of touching up all those joints. Which seem to be concentrated on the 12V output daughterboards.

As was the case with the other 1600s, the line filtering is just fine on this unit. I see six Y caps, two X caps, a TVS diode, and two coils. There are three more Y caps after the PFC coils.

Being a semi-bridgeless design, only a single U30K80R is found in this unit. This will only be in use at low loads with the PFC section taking over at higher loads.

You can see those three extra Y capacitors I spoke of in this shot. Right behind them is the standby output section of the unit, with the fan controller right behind that.

Speaking of the PFC section, this time Super Flower used heatsinks I have no hope of removing for parts identification without breaking things. So, I won't even try.

A better look at one of the minor rail VRMs (left), the fan controller (center), and the standby output parts (right).

Four 5R140Ps make up the main switchers. These parts are rated to handle stupid high temperatures and are right in the fan's airflow, so no heatsinks are needed.

All capacitors are from Nippon Chemi-Con.

Twelve 027N04LS parts handle the 12V output of this unit. The missing parts you see provided for are likely only added when Super Flower extends this platform to 2kW.

Yes, Super Flower is going to be selling a 2kW version of this unit in Europe. Not here, no... the UL wouldn't pass such a monster unless it was 230V only, and good luck convincing people they need a 230V outlet to run a certain computer power supply.

I like the looks of the modular connector board. Nice and clean.

There's our PWM controller.

Those... are the weirdest looking transformers I've ever seen, and likely a big part of what makes this bad boy a Titanium unit.

I'll just put this beast back together now and run that post review stress test I mentioned. I'll go 30 minutes, alternating 80% and 100% loads. I don't want to stay at 100%, because that's too much wear on the load testers, but we'll definitely find out if anything has changed.

Post Review Oscilloscope Measurements - EVGA T2 1600W
Test #
+3.3V
+5V
+12V
Test
5

Well, well, well... look at that. The ripple bug is gone and the unit is under 15mV, all rails. That's what I was hoping to see earlier. That's also what I saw back when I ran it with the P2 units. Did I fix it with my Rembrandt like soldering skills? That is a strong possibility. Several of those joints were just barely holding on. I'm thinking... no, I didn't. But there's still a good chance I did.

Even so, I can't score on this result. I've had it apart and tinkered with it now. It's no longer an untouched virgin sample. I score on the shots from page four, and those shots only. But those were still excellent, so I can't complain.

Let's go do some scoring.



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