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Antec TruePower 550watt Power Supply Review - Test Results

Power Supply Units, or PSUs, can often be overlooked as an unimportant product when it comes to choosing the specifications for your PC. For quite a while now Enermax have had control over the high-end PSU market but just recently Antec have entered as a challenger with their TruePower line of PSUs which are being marketed right toward the enthusiast user. After almost four weeks of torture testing, Asher "Acid" Moses has completed his review of the Antec 550watt PSU which includes extensive testing to see if the stated specifications do indeed hold true.

By: | Other PSUs in Cases, Cooling & PSU | Posted: Jul 10, 2002 4:00 am
TweakTown Rating: 9.5%Manufacturer: Antec

Test Results


Voltage readings in blue are the numbers recorded from the Voltmeter across the load. The current through the load was obtained by calculating the series resistance required for achieving the desired current flow under load conditions.



Note: Calculated Total Output Power has 24.5 watts added to it. This is the power at maximum current specified, for -5v, -12v and +5v SB. These rails were loaded, for a maximum total load of 24.5 watts for all the tests.


- Specifications vs. Test Results



Normally, in practice not all outputs would be running at maximum current anyway. Antec rates this as a 550watt power supply, even though the total adds up to 618 watts. This would still be sufficient to allow you to operate at the maximum specified current on some of the rails.



- Voltage Regulation


Compared to Intel's guide on power supply specifications, the output voltage ranges for the Antec 550 Watt supply is less than +/-3% on the +5v, +12v & +3.3v outputs. In practice, Antec's power supply outputs work well within this range for different loads. Furthermore, the noise on the +5v DC rail is less than 50 millivolts. This is a very good result for a switching power supply.



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Further Reading: Read and find more Cases, Cooling & PSU content at our Cases, Cooling & PSU reviews, guides and articles index page.

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