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Dual 12V PSU Shootout
Author: JonnyGuru
Date Posted:21/07/2005 13:42.03
| AMS Mercury PP-44603 SLRating: |  |
| Seasonic S-12-430 SLRating: | |
| Thermaltake TWV500 SLRating: | |
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Bottom Line:
The three of these power supplies really don\'t shoot-out each other. If you want cheap, the AMS. If you want quiet, the Seasonic. If you want modular, the Thermaltake.
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Pages:
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2
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4
5
6
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8
Discuss This Article |
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Load test results
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AMS
Mercury PP-4603
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Total
Wattage
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12V1
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12V2
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5V
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PF
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Efficiency
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Test
1
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405W
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11.94
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11.92
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4.98
|
.71
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74%
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Test
2
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450W
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11.86
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11.82
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5.00
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.72
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72%
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Test
3
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460W
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11.88
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11.88
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4.95
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.72
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71%
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Test
4
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460W
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11.92
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11.83
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4.95
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.72
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71%
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Test
5
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516.8W
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11.70
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11.68
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5.02
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.74
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68%
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5VSB
Only Load
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.56
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46%
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For $60, this AMS
is kicking ass and taking names. The rails remained very consistant
and I was able to put a load significantly greater than what the label
showed. Power factor and efficiency were average.
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Seasonic
S-12
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Total
Wattage
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12V1
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12V2
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5V
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PF
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Efficiency
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Test
1
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407W
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12.00
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11.94
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5.04
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.99
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76%
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Test
2
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453W
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11.94
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11.88
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5.04
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1.00
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75%
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Test
3
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N/A
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N/A
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N/A
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N/A
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N/A
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N/A
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Test
4
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463.4W
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11.98
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11.89
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5.03
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1.00
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74%
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14A/15A/14A/10A
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465W
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11.92
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11.85
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5.05
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1.00
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74%
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5VSB
Only Load
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.91
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45%
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Surprisingly enough,
the famed efficiency of the Seasonic, which no doubt is very efficient,
is not even as good as the Enermax we reviewed last month.
Test 3 was a no go
with the Seasonic. The load was too much for the 12V1 rail. The
power supply didn't shutdown like it did when I applied the default
Test 5 settings, but the voltages were fluctuating so radically, it
wouldn't be fair to even attempt to document.
Certainly the Seasonic
is a strong power supply.. for a 430W unit. I can only imagine
that the higher end models are just that much better.
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Thermaltake
TWV500W
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Total
Wattage
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12V1
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12V2
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5V
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PF
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Efficiency
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Test
1
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411W
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12.20
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12.13
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4.98
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.98
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72%
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Test
2
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459W
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12.18
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12.11
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4.96
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.98
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71%
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Test
3
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469W
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12.16
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12.13
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4.95
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.98
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71%
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Test
4
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469W
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12.20
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12.07
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4.95
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.98
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71%
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Test
5
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530W
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12.14
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12.06
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4.93
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.99
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69%
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18A/18A/10A/10A
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535W
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12.16
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12.06
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4.95
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.99
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69%
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5VSB
Only Load
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.94
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25%
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The Thermaltake has
decent power factor and average efficiency (almost below average,)
but it can certainly produce it's advertised power and then some. During
Test 5, the power supply didn't even flinch for the full half an hour
it was loaded up. I decided to take things further and loaded
both 12V rails up to 18A to produce a total wattage of 535W. Although
efficiency dipped below 70%, it still stayed cool and the rails hardly
fluctuated at all. WOW!
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