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Dual 12V Rail PSU Shootout
Author: JonnyGuru
Date Posted:31/05/2005 15:13.08
Enermax SLRating: |  |
Neopower SLRating: |  |
Silverstone SLRating: |  |
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Bottom Line:
Grading of the Enermax, Antec and Silverstone Power Supplies was tough, but with stable rails and quiet operation, both the Enermax and Antec are going to come out on top.
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Discuss This Article |
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Load test results:
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Enermax
EG495P-VE |
|
Total Wattage |
12V1 |
12V2 |
5V |
PF |
Efficiency |
Test 1 |
367W |
12.16 |
12.07 |
5.06 |
.69 |
80% |
Test 2 |
462W |
12.08 |
11.96 |
5.06 |
.70 |
78% |
Test 3 |
438W |
11.97 |
11.93 |
5.07 |
.70 |
78% |
Test 4 |
437W |
12.10 |
11.95 |
5.06 |
.70 |
78% |
Test 5 |
508W |
12.02 |
11.90 |
5.06 |
.70 |
76% |
5VSB Only Load |
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|
.56 |
46% |
Stable rails and awesome
efficiency really made the Enermax shine.
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Antec
NeoPower 480W |
|
Total Wattage |
12V1 |
12V2 |
5V |
PF |
Efficiency |
Test 1 |
366W |
12.1 |
12.05 |
5.06 |
.99 |
74% |
Test 2 |
463W |
12.1 |
12.01 |
5.05 |
.99 |
73% |
Test 3 |
438W |
12.08 |
12.07 |
5.04 |
.99 |
73% |
Test 4 |
436W |
12.09 |
11.94 |
5.04 |
.99 |
73% |
Test 5 |
508W |
12.06 |
11.97 |
5.03 |
.91 |
72% |
5VSB Only Load |
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|
.95 |
21% |
The Antec NeoPower exhibited
the most fluctuation on the 5V rail, but the least fluctuation on the 12V
rail. Throughout all tests, the 12V rail never
fluctuated
more than .04V. It also had Power Factor Correction that held up even
during the +5VSB test.
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Silverstone
Zeus ST52F |
|
Total Wattage |
12V1 |
12V2 |
5V |
PF |
Efficiency |
Test 1 |
365W |
11.97 |
11.93 |
5.07 |
.99 |
75% |
Test 2 |
455W |
11.74 |
11.72 |
5.09 |
.99 |
73% |
Test 3 |
430W |
11.76 |
11.76 |
5.10 |
.99 |
73% |
Test 4 |
430W |
11.79 |
11.71 |
5.10 |
.99 |
73% |
Test 5 |
498W |
11.6 |
11.57 |
5.10 |
.99 |
71% |
5VSB Only Load |
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|
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.84 |
44% |
Even though it's rated
at 520W, the Silverstone had the lowest rated 12V rails (all of it's rated
power
is
on
the 5V rail.) The
12V rail moved around quite a bit. Furthermore,
the 12V rail actually bounced around while it was under a steady load. It
was actually difficult to get a reading because voltage would bounce by about
.2V every other second.
So where does that put
us? |
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