Efficiency meets 80 PLUS specifications:


Efficiency under different load profiles:


We anticipated seeing solid efficiency measurements since this is one of our 80 PLUS Bronze units. We were not disappointed. The Huntkey Jumper 450B achieved the best results in almost all of our tests. The PSU hit its efficiency peak of 87% at 230 V and 300 W, managed to stay above 80% all the way down to 50 W, and even managed a respectable 73% efficiency at 25 W. All of this is very good. The overload test showed that the PSU does not have the high margins of other test candidates, switching off at a load of 517 W. Remaining tests on the Jumper 450B revealed no further weaknesses.
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Summary
- PSUs At A Reasonable Price
- Corsair CX400W
- Corsair CX400W: Measurements
- FSP Saga II 400
- FSP Saga II 400: Measurements
- Huntkey Jumper 450B
- Huntkey Jumper 450B: Measurements
- Xigmatek NRP-PC402
- Xigmatek NRP-PC402: Measurements
- Test Configuration And Short Circuit Tests
- Antec EA-380D Green
- Antec EA-380D Green: Measurements
- Chieftec BPS-450S
- Chieftec BPS-450S: Measurements
- Enermax PRO82+ II (425 W)
- Enermax Pro82+ II: Measurements
- Test Configuration And Short Circuit Tests
- Hold-Up Time, Inrush Current, And Peak Load Tests
- Efficiency In Accordance With 80 PLUS Specification, Temp., And Standby Power
- Load Profiles Efficiency Overview
- Conclusion And Recommendations
Ask a Category Expert
Looking at the picture and the fan alignment it seems otherwise.
While your tests show that these PSU's perform up to or even above their power output specs, that's not the whole story. You say you have an oscilloscope, but where are it's readings across all those load tests? What about voltage fluctuation measurements across them as well?
I just think you're capable of providing more thorough tests and results.
Oh, and it was interesting to see a real PSU blow up
Looking at the picture and the fan alignment it seems otherwise.
great video, Ive always wanted to see a PSU explode lol.
Looking at the picture and the fan alignment it seems otherwise.
While your tests show that these PSU's perform up to or even above their power output specs, that's not the whole story. You say you have an oscilloscope, but where are it's readings across all those load tests? What about voltage fluctuation measurements across them as well?
I just think you're capable of providing more thorough tests and results.
The initial request makes me think these were cherry-picked, rather than selected from a Retail source. That bodes particularly poorly for AXP; looks like they should not be legal for sale.
If you doubt this, try using a kill-a-watt meter or equivalent. Most mainstream PC's idle lower than 100, and max lower than 250.