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| Corsair HX620W Power Supply |
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Corsair HX620W Power Supply
TestingI tested the HX620W with the following load, along with miscellaneous peripherals:
The
primary aspect that determines a power supply's quality is whether the
voltage lines meet ATX standards, which is a +/-5% tolerance, and
whether the voltage is stable on that line.
Voltages across key lines, using a digital multi-meter:
| +12V |
+5V |
+3.3V |
Idle |
12.02-12.03 | 4.95 | 3.34 | Stress |
12.03 | 4.94~4.95 | 3.34 | Shutdown |
12.02 | 4.95 | 3.34 | Boot |
12.03 | 4.94~4.95 | 3.34 |
Conclusion
As you can see in the table above, the HX620W power supply from Corsair
is not only nearly spot-on with the target voltages, but is extremely
stable at those voltages and a swing of 0.01V is essentially
negligible. Overall, this is a premium quality power supply, and it is
extremely quiet as well. The HX620W is available for $170 from Newegg, or if a 520W power supply is plenty for you, consider the HX520W at $115
(just make sure you're not cutting this too close). This may seem like
a lot of money, but it is absolutely crucial to make sure you are
getting a stable power supply. You might be able to get by just fine
with a cheaper power supply if you're on a budget, but if you've
already spent over $1000 on other components, why risk your valuable
system trying to save a few bucks on such an important part?
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