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Antec Truepower Quattro 1200W Power Supply Review

paulktreg    -   April 25, 2010
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Closer Look :

The Antec Truepower Quattro 1200W is finished in matt black with two orange stripes that run all the way around the enclosure with 1200 written into oval panels on the top and bottom of the unit similar to the design on some racing cars.

 

 

 

 

 

 

 

 

 

 

 

 

Antec have opted to use a smaller 80mm fan mounted on the rear panel rather than the more conventional top mounted larger fan. I have to wonder whether this is enough to keep the unit cool and quiet, as small fans and quiet operation don't go together too often especially on high power units. The IEC mains input connector isn't the usual 13A rated type seen on lower power units and has been upgraded to a 16A connector. Potentially this unit could pull 12A from the wall outlet on a 115Vac supply. The rear of the unit shows the modular cable connector sockets, red for PCI-E and black for peripheral, along the bottom edge of the panel. The captive cable set is sleeved all the way into the unit which is nice to see.

 

 

Here is the small auxiliary ventilation grill on one side panel and the specification table on the other.

 

 

Here are the top and bottom faces showing the orange stripes and oval number panels.

 

 

The Antec Truepower Quattro 1200W captive cable set is quite comprehensive and there are enough connectors to wire up and run a powerful PC. The plastic tubular cases on all of the captive cable set house electrolytic capacitors connected between the +12V rail and ground (0V) and this is the PowerCache feature mentioned earlier in the review. The power supply also comes with a comprehensive set of modular cables - no PowerCache capacitors on the peripheral cables, but they are present on the modular PCI-E cables.

 

 

This photograph shows a close-up of the PowerCache capacitor on the PCI-E cable, a 2200uF in this case.

 

Pop open the plastic tube to reveal a Chemi-Con KZE 2200uF 16V electrolytic capacitor connected between +12V and ground. The electrolytic is held in place with clear plastic tape and the connection to the wires is insulated with heat shrink sleeving. (I didn't want to disturb the sleeving too much but going off the impression in the heat shrink, it looks like the connection to the wires is made using some kind of crimped ring terminal). The 2200uF is not used on all the cables, as the peripheral cables are fitted with a lower value 220uF capacitor because of their far lower current requirements.

 

 

The Antec Truepower Quattro 1200W heat sinks are oriented, and rightly so, to take advantage of the airflow from the front of the power supply out through the rear. The photograph on the right shows two vertically mounted printed circuit boards and DC to DC convertors, that are responsible for producing the +5V0 and +3V3 rails from the +12V rail.

 

 

The area of the printed circuit board to which all the wire connections is made, is very crowded and the inclusion of ferrite beads, under the heat shrink sleeving, around the +3V3 and +5V0 rail wires doesn't help, but obviously some problems with RFI have been identified and protection thought necessary.

 

The small board at the rear of the power supply carries the modular cable sockets and on closer inspection a series of electrolytic capacitors are wired across various rails that could explain their omission from the peripheral modular cables. The cooling fan is a 80mm DC brushless unit by Adda.

 

 

The build quality of the Antec Truepower Quattro 1200W is up there with the best, but things do get a little cramped. The electrolytic capacitors, all good quality, are a mixture of Chemi-Con and Sanyo as far as I can make out with a few polymer type devices used on the DC to DC convertor boards. Pretty good so far, so let's have a look at the specification and features and then see how it performs.




  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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