After a quick gander at the PSU label, what likely draws attention is the use of no less than six 12V rails, each capable of 20 amps each. The total output for 12V is a competitive 81 amps for 972 Watts of the available 1100 Watt capacity. This is very competitive for the segment, but unfortunately, like many other 1000 Watt power supplies, there are only four PCI-E cables. More on that in a bit.
You will note the only feature exception is the 50C power rating. Since the ATX standard only requires the manufacturer to rate the PSU at 25C operating temperature, the true power rating may be significantly less at 50C since power loss occurs as operating temperatures rise to this level. This PSU is rated at 40C, which is quite a bit better than 25C, but is still a little low from the standard set by premium brands like Corsair or PC Power and Cooling. Our hotbox test, which brings up the ambient temperature to about 45 to 50C, will definitely uncover any weakness if it exists. It will be interesting to see if the PowerBird 1100 can operate at the rated output at the elevated operating temperatures. The other item of interest is the 80 Plus certification, or the lack thereof, actually. It does claim "80 Plus" efficiency up to 85% on the side of the box, but it is not the normal trademarked 80 Plus label. A quick check at the 80 Plus certification site confirms that the power supply is not certified (at least, not yet). Now, while that does not mean the power supply cannot deliver 80 plus efficiency, it will definitely be something to validate. The manufacturer may have simply opted not to pay for the certification. It will be interesting to see if it makes the grade in spite of the lack of certification. The power supply is readily available from many online retailers and is competitively priced at 249.99 USD at NewEgg. The unit includes a standard three year warranty starting when you purchase the power supply, so make sure you file that receipt! While this is a not a 5 year or lifetime warranty offered by many competitors, it is still a good duration.
Last updated: Apr 7, 2020 at 12:27 pm CDT
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