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IN WIN Commander 1200W Power Supply Review

paulktreg    -   January 6, 2009
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Closer Look:

The matte green paint finish on the IN WIN Commander 1200W is certainly different and looks well. You will probably notice from the photograph that this power supply is a little longer than standard power supply - nearly 8 inches, and this should be taken into account as not all cases will easily accommodate it.  

 

 

 

 

 

 

 

 

 

 

 

 

The back panel containing the honeycombed exhaust grill, IEC mains connector and a nice large mains on/off switch. The front panel accommodates the modular cable connectors, complete with dust caps, hard wired cable port and a modular cable connector diagram with colour coded sockets for peripheral power (black), first PCI-E card auxiliary power (blue) and second PCI-E card auxiliary power (red).

 

 

One side panel with a repeat of the stencilled look logo and wattage similar to the box lid and a plain unadorned opposite face.

 

 

A large 140mm fan takes care of the cooling and the opposite face sports the specification label. The label is a little difficult to read as dark grey print on a black background is never a good combination.

 

 

The three hard wired cables that once again looks a little untidy because the sleeving has not been taken all the way into the case. A good selection of modular cables which are all color coded to match the sockets on the power supply.

 

 

The large 140mm cooling fan is a GP D14BH-12 type rated at 12v 0.7A. This Yate Loon manufactured fan is rated at 2800 RPM maximum and will shift 140 CFM of air. The quoted maximum noise level is 48.5dB which is rather noisy, we will see.

 

The photograph below shows the power supply printed circuit board from above and you may notice two main smoothing capacitors. The IN WIN Commander 1200W, like others in its class, would appear to be in effect two switch mode power supplies. Each side providing two of the four 12V rails and either the 3V3 or 5V0 via DC to DC convertors but without dismantling the power supply I can't tell exactly where the -12V and 5VSB rails are derived from but these are of such low power they would have negligible current draw on either side. I should also like to point out that this board looks very similar to the one used in the Corsair HX1000W power supply.

 

Two more internal views from different angles. You can see that the heatsink is highly finned to increase its surface area and maximise heat loss in conjunction with the large 140mm fan.

 

 

The IN WIN Commander 1200W build quality is very high. Heatshrink sleeving as been used to keep all the cables neatly bound which always helps to give a tidy appearance. The main smoothing capacitors carry a 85°C rating which is a little disapointing in a power supply of this class. 105°C rated capacitors seem to be the norm these days and do have a longer life expectancy. The board, which I mentioned earlier, is identical to the one used in the Corsair HX1000W and if it performs the same it should be a winner. It does however, supply another 200W, so it's either over driven or component upgrades have been made to accommodate the extra power. Let's have a look at the specification 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 At 110VAC & 230VAC
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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