SUPPLIED BY: Enermax USA
PRODUCT: Enermax RevoBron 700W
PROD LINK: RevoBron Product Page
PRICE: $68.41 @ Amazon
Price is at time of testing!
After yours truly taking a couple days off to go get the car fixed, it’s time to get the take apart page done starting with a fan shot. As the box promised, this model uses a PWM twister bearing fan. Because this is one of those extended life sleeve bearing variants, I do require a good warranty behind such fans.
In this case, I had a devil of a time finding the warranty spec for this unit. It’s not printed on the box, the website, or datasheet. I finally found it in small print in the owner’s manual: three years. Not good enough, I need five years to stop me from pulling points. While I do believe these fans are long lasting I have no way of testing that to be sure.
As mentioned, the innards of this unit come from CWT.
Line filtering starts with two Y caps and one X.
CWT has been known for the occasional solder quality blip every now and then. This is one of those occasions, but it’s not quite bad enough to remove the whole point later. But because this is a single layer PCB, I’ll easily be able to remove the main heatsinks to show you later.
PWM and PFC controller is an CM6800TX.
I’ve got an issue with the two Nichicon main filter caps. Not because of the brand name. Not because of the reliability. It’s because of what the box promised… 105 degree Japanese parts. That smaller main filter cap? It’s an 85 degree part. The big one is 105 degree.
Now, I said I’m not concerned about reliability and I meant it. Both of those caps are in the airflow from the fan. They’ll never get as warm as 85 degrees at any time unless the fan dies. It’s just if you’re going to promise me something, please deliver on it. I won’t score against it because there’s really nothing to score it for, it’s just annoying.
Line filtering concludes with three coils, two more X caps, two more Y caps, and a TVS diode. A Sitronix ST9S429-PG14 handles protection in this unit.
We’ve found the standby controller, a TNY177PN part.
Controlled by an APW7159C, the minor rail VRM uses M3006 parts to provide those outputs.
All secondary electrolytic capacitors come from Nippon Chemi-Con.
There are a few polymer capacitors in the unit – these come from Apaq and Elite.
The backside of the modular board is soldered better than the mainboard. This is the only place you can find 12V2… as mentioned, 12V1 is for the hardwired cables only.
There’s room for one more peripheral cable connector on this side of the board.
The primary heatsink. Four GP28S50Gs in total are here. Two on the right for switching, the other two for PFC with the PFC diode in the middle.
Finally, the secondary heatsink with the GBU1506 bridge rectifier. Two SG65N02Ps and two PFR30L60CTs handle 12V output.