Enermax Revolution 85+ High Efficiency PSU
by Christoph Katzer on November 6, 2008 4:15 AM EST- Posted in
- Cases/Cooling/PSUs
DC Output Stability and Quality
The DC output regulation is excellent with this power supply. Both the 3.3V and 5V rails have a regulation little over 2%; even at maximum loads of over 1000W, they stay just 1% under the ideal output. The standby rail has a larger regulation of around 6%, which is still within specs and seldom a cause for concern. As always, we combined all 12V rails into one graph. This time it represents six 12V rails, which is why the graph is so thick. With six rails, the various outputs will never be identical, and we measured a difference of roughly 0.15V at higher loads. Despite the spread between the 12V rails, we still get a voltage regulation of around 3%, which is a very good result.
The 3.3V and 5V output quality is okay, and the 3.3V rail is the worst we'll see from this PSU with a ripple result of 14.6mV. 12V1 has the lowest ripple with up to 17.79mV while the other 12V rails reach up to 30mV, but the overall results are similar to 12V1.
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strikeback03 - Friday, November 7, 2008 - link
You should have stated you were using a 700W power supply, your post indicated you thought you were drawing 700W.http://www.anandtech.com/casecoolingpsus/showdoc.a...">http://www.anandtech.com/casecoolingpsus/showdoc.a...
I have a similar system on my desk here at work (only 3 GHz on the q6600, but it is a B3 stepping; 2 HDD, 1 optical, 7300GT instead 0f 9800GX2) and idle is about 100 W at the wall, peak draw is like 160-170. Your system probably draws another 120-150W at idle, and maybe 250 at full power. A 700W power supply is quite reasonable for that system, as it probably uses 200-250 at idle and another 150-200 at full bore. It won't draw 700W.
Freddo - Thursday, November 6, 2008 - link
This PSU is so cool, as it's very energy efficient & have modular cables.I would really like to see a PSU as energy efficient as this one, but down at ~400W or so instead, and with passive cooling, or at least "half passive", with a small 80mm fan outwards that only starts to spin when it's near full load and getting hot.
Christoph Katzer - Thursday, November 6, 2008 - link
Wait until next year's ~CES/CeBIT, there is a manufacturer who might have exactly what you're waiting for...iwodo - Thursday, November 6, 2008 - link
As Anand as well as other tech site has confirm, even with GTX SLI and Quad Core CPU, you will hardly need more then 500W, lets give it a peak spike of 40% will only means 700W.So why are we having PSU that starts at 800W? When only less then 5% of market uses it. Not to mention 1000W PSU.
Shmak - Thursday, November 6, 2008 - link
All power supplies reach their efficiency peak at about 50% load, which is shown on any psu review you care to look at. Therefore, if your system idles at around 500W, a 1000W psu will likely be most efficient for your build.GaryJohnson - Thursday, November 6, 2008 - link
Watts don't mean anything. What matters is having enough stable amps on a couple (or single) 12v rails to power SLI or Crossfire.OddJensen - Thursday, November 6, 2008 - link
Try a Core i7 w/HD4870X2 in crossfire. You'll soon find out why we have 1kW PSUs.larson0699 - Thursday, November 6, 2008 - link
How about a Pentium D or Skulltrail with quad GTX 280's?Do like the small jets and shut off everything else before powering up THOSE engines.
Nigel.k.l - Tuesday, November 26, 2019 - link
I purchased mine back in 09 and its still running, I7 8700k 1070ti system