Five 550 And 600 W 80 PLUS Platinum Power Supplies, Tested
A good power supply doesn't just provide you with ample output. Increasingly, vendors have put a bigger emphasis on delivering power more efficiently, too. We're testing five 80 PLUS Platinum-rated power supplies in the 550- to 600-watt range.
Test Setup, Hold-Up Time, And Inrush Current
Test Hardware | |
---|---|
AC Source | Chroma Programmable AC Source 6530 |
Power Meter | Yokogawa WT210 Digital Power Meter |
Loads | 4 x 600 W Chroma 63306 for 12 V testing4 x 300 W Chroma 63303 for 5 and 3.3 V testingusing Chroma HighSpeed- DC Load Mainframes 6334 |
Oscilloscope | Tektronix DPO3034 Digital Phosphore Oscilloscope (300 MHz) |
Test Procedure | |
Voltages | 110 and 230 V |
Standby Power | 0.25 A fixed current to simulate PC standby power on 5 Vsb |
80 PLUS Efficiency Testing | 100/50/20% load, relative to specified total output Load distribution across 12/5/3.3V rails at the same proportion as specified for 100% testing at 110 V according to ATX 2.3 specification |
Efficiency at Fixed Loads | 25, 50, 85, 300, 500 W loads Load distribution across 12/5/3.3 V rails at the same proportion as specified for 100% |
Peak Load Test | 110% Overload Testing at maximum combined 12 V |
Temperature Test | Air intake vs. exhaust temperature delta tracking highest delta during all tests |
Please refer to our Desktop Power Supply Charts to see more results of these and other power supplies.
Hold-Up Time and Inrush Current
For what it's worth, we were unable to get usable readings from Antec's power supply during our Inrush Current test.
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Current page: Test Setup, Hold-Up Time, And Inrush Current
Prev Page Results: Rosewill Fortress 550 Next Page Efficiency (According To The 80 PLUS Spec)-
mousseng Is that a typo in the first chart for Kingwin's Lazer? It claims that it fails 80 Plus's 50% load spec (82% of 92%); I assume that was meant to say 92% (since that's what the chart below it shows).Reply
Pleasant read, though, I like PSU reviews. -
What happen to Seasonic? They have the 520W fanless SS-520FL Platinum version. No PSU test is complete without a seasonic to compare to, in my own opinion.Reply
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dudewitbow jupiter optimus maximusWhat happen to Seasonic? They have the 520W fanless SS-520FL Platinum version. No PSU test is complete without a seasonic to compare to, in my own opinion.they asked for vendors for the PSUs. Theres the offshoot chance that seasonic declined the offer. On other sites, the 520w fanless seasonic unit was compared to Rosewill's 500w silent night unit. The seasonic unit I believe in that review barely edged out a victory.Reply -
cangelini iknowhowtofixitEither the Rosewill FORTRESS was defective or your calibration was off for the last test. Your o-scope shots do not match those of other highly credible reviewers. Also, I'm curious of your testing methodology, but it was not listed.I believe this is still applicable to all of the power supply testing our German team does: http://www.tomshardware.com/reviews/psu-test-equipment,2657.html. I'm waiting for confirmation that I'm right.Reply
Edit: Yup, that's the correct testing equipment/procedure! -
Dun dun dun..................... no acoustic performance measured, the only reason some people buy high end PSU's.Reply
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sebbesapa WOW! Thanks a bunch for including the 25watt "Low-Power PC" efficiency test! All other reviewers stop @ 20% load witch is not "idle" or "low load" at all. :-)Reply -
jaideep1337 I don't understandReply
Why is the 80 plus spec officially test by having more load on the 3.3v and 5v rails?
Clearly loading the 12v rail would give us a better overall image -
jaquith Interesting, IMHO the most important aspect is 'Ripple Voltage' @ Rated Load. The only mention I see is a vague reference in your conclusion page.Reply
Never mind I see the ripple data buried in the individual tests. It would have been better in the summary side-by-side tests.
Nice article.