NZXT E500 500W Power Supply

REVIEW INFORMATION
SUPPLIED BY: NZXT
PRODUCT: NZXT E500 500W
PROD LINK: E500 Product Page
PRICE: $119.99 @ NewEgg
Price is at time of testing!


NZXT E500 500W – Overshoot Transient Tests
VSB On VSB to Full, 12V Off to Full, 12V

Recent Seasonic based units haven’t been looking all that great on these tests, and this is the case here again today. The 5V standby rail looks as good as it ever gets, but the 12V side of things is still looking pretty staggered. I’ll have to ditch that half of the S&C point later.

For now, we’ll run the hot tests. This unit is far too small to get the load tester very warm at all, so we’ll likely need to be content with whatever temperature we can get this thing up to.

NZXT E500 500W – Hot Load Tests
Test # +3.3V +5V +12V DC Watts/
AC Watts
AC
Input
Eff. P.F. Fan
RPM
Intake/
Exhaust
Progressive Load Tests
1 1A 1A 3.4A 50.5W/
61.1W
118.5V 82.7% 0.945 0 26°C/
28°C
3.302V 5.01V 12.04V
2 1.5A 1.5A 7A 99.2W/
113.4W
119.3V 87.5% 0.978 0 29°C/
34°C
3.306V 5.01V 12.03V
3 3A 3A 18A 248.8W/
277.8W
118.8V 89.6% 0.988 931 33°C/
39°C
3.302V 5.01V 12.02V
4 4.5A 4.5A 27A 371.6W/
417.9W
118.8V 88.9% 0.989 1764 36°C/
42°C
3.298V 5.00V 12.01V
5 6A 6A 36A 496.6W/
568.1W
116.9V 87.4% 0.990 2172 38°C/
46°C
3.293V 5.00V 12.00V
Crossload Tests
CL1 12A 12A 0A 100.8W/
120.9W
117.8V 83.4% 0.980 579 29°C/
34°C
3.295V 5.00V 12.03V
CL2 0A 0A 41A 492.8W/
558.8W
116.7V 88.2% 0.990 2140 38°C/
45°C
3.306V 5.01V 11.99V

Even so, we did get close to the forty degree mark with no issues at all. Once more, the unit has no trouble hitting the Gold mark.

And just like other units based on Seasonic platforms, it has decided to improve on the cold tests when it comes to regulation. Now, I have improvements on both minor rails to 0.39% and 0.20% while the 12V rail stays the same at 0.33%. Now, our average is 0.31%, even more mythic than before.

Sadly, the ability to adjust the fan’s behavior remains as it was with the 850W. You can make the fan turn on sooner, but not later. And you can’t make it run any slower than it was here when the heat really built up. Adding heat makes it always want to go to 100% fan at full gallop.

NZXT E500 500W – Oscilloscope
Test # +3.3V +5V +12V
1
2
3
4
5
CL1
CL2

Now, a look at the scope shots. Thanks in part to the in cable capacitors, we have some good looking waveforms here. 25mV on the 12V side of things, 5.5mV for the 5V output, and 8mV for the 3.3V output means we are looking at excellence all the way down the line.

Let’s take it apart and look at the innards.