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Power supply testing methodology
TESTING Part 1st (Real testing)
At this part the ClacialPower GP-AX950AA will be tested in real conditions, in my pc that was built for this reason.
The ClacialPower GP-AX950AA remained very silent at idle and the fan was completely inaudible, but at load the noise was a bit higher and fan was spinning at higher speed.This is normal because a 950w psu is producing lots of heat, but despite the high fan speed the noise was still at very low levels.What amazed me was the stability, there was a really slight voltage drop.This indicates a high quality psu.But it will tested better at the synthetic testing which is more difficult for the power supplies.
TESTING Part 2nd(Synthetic testing)
At this part my homemade psu tester is used.This allows me to know the exact load of each rail.This is very usefull because I can measure the efficiency and also see if the psu can really provide the specified wattage.
Please note that synthetic testing is much more difficult for the power supply, and this means that it has more voltage drop than with the same load at a real system.
Here are the results:
Part 1 - 30% load
Part 2 - 50% load
Part 3 - 80% load
Part 4 - 100% load
Part 5 - Individual line loads(each line is tested alone with the maximum specified load)
Efficiency is calculated by measuring the consumption of the power supply for known loads.
Here exhaust air temperature was measured.
ClacialPower GP-AX950AA was able to withstand 950w load for 5 hours, so I raised the bars and tried to find its absolute limits...For short time it also was able to hold with 1100w load, but after about 30 minutes the psu was shutting off.The max load the psu was able to withstand without failing was 1010 watts.The noise was noticeable at such high loads,but in no way annoying. We can have a look at the noise testing below.
ClacialPower GP-AX950AA Sound pressure level
Generated sound was monitored 10cm away of the exhaust of the psu at a sound insulated box in order to eliminate any external sound or echo.Readings are taken using a high sensitivity digital SPL meter.(Values under 17dBA are considered to be inaudible)
|Last Updated on Monday, 26 April 2010 20:07|
Monday, 08 March 2010 18:55
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