Antec NeoPower 650 ReviewFormer staff writer - November 27, 2007
Getting the power supply freed from the packaging shows a gun metal grey powder coated finish on the case, with black sleeved main lines. The finish is done well, and even after a few screwdriver bites while removing the cover, there were no scratches to be seen in the powder coat finish. This is a big plus of powder coating over painting. The inlet side of the power supply is completely vented to promote airflow. Along the bottom of the power supply front are the 5 plugs for the component cables. All cabling is justified to the right to enable better cable routing against the back side of your case. Around back is the 80mm low speed ADDA fan that varies speed in response to load and temp conditions. The specification sticker graces the left side of the power supply showing the max current on each of the rails. Antec uses three +12V lines rated at 19A each to balance the current draw.
There is absolutely no need to open up a power supply, especially if it has had power going through it recently since the capacitors will hold a charge and give you a pretty good shock if you happen to short them out accidentally. We open it up so you don’t have to. Taking a look inside the power supply from the top, right away you notice the two large silver heatsinks used to dissipate the heat generated by the voltage regulators. Coming to the secondary side shows where the main lines come in and are soldered to the board. Antec does not use a component cable for the main lines and this is a good thing. The less “breaks” in the wire you have, the better voltage regulation you achieve. Behind the main lines you can see two of the filter coils on the PCB. On the primary side the dominating feature is the large PFC (Power Factor Correction) coil. The capacitor used in the NeoPower 650 is a Nippon Chemi-Con SMQ series 400V, 470µF.