When looking at the Seasonic Power Supply test results we see
two values, wattage (W) and volt-amps
(VA). Since it might not be clear to everyone what they measure, here's a brief
volt-amp (VA) value is how much real power is being consumed by the power supply
being tested to provide the wattage (W) value. The higher the VA value is, the
more electricity is being used by the power supply. Because no electrical device
is 100% efficient, there will always be some loss when converting AC to DC. The
closer the volt-amps and wattage figures are to each other, the more efficient a
power supply is. This is called the Power Factor: wattage / volt-amps =
Since we're testing with a 120W dummy load, the
load on the power supply (wattage) should be as close to this figure as
possible. Anything above this load in apparent power describes the overhead and
wasted energy (given off as heat) for the particular power supply being tested.
For the unloaded tests, the wattage and volt-amp figures should be as close as
possible to one another. The lower the figures are, the less power is being
Measurements were taken with an Extech 380803 Power
Analyzer for the PC Power & Cooling 1KW unit.
Seasonic Power Load
||7 VA |
||21 VA |
|Antec TruePower 330
||38 VA |
|Ultra X-Connect Green UV 500W
||40 VA |
|AOpen Silent Power AO400-12AHN
||18 VA |
|PC Power and Cooling Turbo-Cool 510 Express/SLI
|29 W |
||32 VA |
|HEC Ace Power 580UB
|12 W |
||26 VA |
|HEC Win 550UB
|Akasa PowerPlus AK-P550FF
Prima Power AO700-12ALN
|Seasonic S12 600
|PC Power & Cooling Turbo-Cool 1KW
PFC tests the PC Power & Cooling Turbo-Cool 1kW power supply does pretty
well overall. With no load, the power factor is only around 78% which is lower
than what we would have expected however load PFC values are nice and efficient
at 99%. Overall the PC Power & Cooling Turbo-Cool 1kW power supply does
consume a fair bit of power, but it is not designed with such low load values in mind.
PC Power & Cooling Make an Insane Power Supply
When it comes to power supplies even among computer enthusiasts, the consensus is that the PC Power & Cooling brand is the best on the market. PC Power & Cooling's track record of consistently delivering the high quality products is largely responsible for this positive impression.
In the last year or so, power requirements of cutting edge PC's have shot through the roof and today, a quality 500W power supply would be the bare minimum an enthusiast should use. For those who want to be on the safe side, larger power supplies are readily available and the "baddest" power supply available is easily the PC Power & Cooling Turbo-Cool 1kW.
Once the heavyweight PC Power & Cooling
Turbo-Cool 1KW was pulled out of its packaging, we were expecting good things from
it and it did not disappoint. This power supply proved to be extremely solid
and accurate in terms of the voltage it delivered across its various rails. It's a
big and heavy unit, but it delivers excellently.
In terms of power use, like the Turbo-Cool 510 Express/SLI before it,
the PC Power & Cooling Turbo-Cool 1KW takes a bit more for itself
than most of the PSUs we've tested, especially when not under load. In
light of its Active-PFC and excellent voltage stability though, voltage
regulating potentiometers for fine adjustments in overclocked settings, and twin
6-pin SLI power cables, that one small disparity is easily forgiven.
PC Power and Cooling offers a five year warranty on the Turbo-Cool 1KW.
Considering that power supplies are the most common cause of computer failure,
this indicates a comforting degree of confidence in the product by the
manufacturer. With a retail price of $538CDN ($489 USD, £260 GBP) for the 1000 Watt model, the PC Power &
Cooling Turbo-Cool 1KW power supply is ideal for true hardcore enthusiasts
and high-end SLI computer systems, or anyone investing seriously into an overclocking rig. You
won't need a power supply like this for a small PC, but if you're running dual
videocards and a pile of RAID'd hard drives with the latest CPU, this is as
good as it gets!
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