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> 550 /should/ be enough, correct. However, as Nuitari asks, what brand, |
| 2 |
> and is it UL/CE certified or not? If not, as I said, the rating's worth |
| 3 |
> less than the sticker it's printed on. |
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550w doesn't mean much actually. It is the total power output it is |
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capable of, under ideal conditions. |
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You have to see how much each individual voltage can take amp wise. |
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In the time of 300w power supplies, there were a lot of cheap ones that |
| 11 |
had a 10A 12v line. 10a * 10v = 120watt, which is definitely not what |
| 12 |
someone would expect from a 300w power supply. |
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|
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Then came the 350w ones with the same rating for 12v, so no gain there. |
| 15 |
Better ones had at least 15A for 12V as the CPUs started using much more |
| 16 |
power. |
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|
| 18 |
I am currently using an Antec SmartPower 2.0 450W power supply. |
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|
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It has these ratings: |
| 21 |
+3.3V * 32A = 105.6W |
| 22 |
+5V * 30A = 150W |
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+12V1 * 15A = 180W |
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+12V2 * 17A = 204W |
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| 26 |
According to the documentation, the combined output of these cannot exceed |
| 27 |
440Watts (there are some watts for +5V standby and -12V). |
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+12V1 is what does to the motherboard and peripherals and +12V2 goes to |
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the processor(s). |
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|
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You should calculate how much you are using power wise with all of your |
| 33 |
peripherals to see if your power supply is strong enough. |
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-- |
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