Choose power supply computer exactly

PostDateIcon August 16th, 2011

We all have a vague idea that the power supply computer with more watts is better than one with fewer watts. We also know, and hope that different manufacturers have different interpretations. “Output peak” In other words, you already know that all 300W power supplies are not created equal – you also know that a redundant 550W power supplies for standard desktop machine. But how much power you really need, exactly? Most of you probably do not know the answer to this. In fact, before last month, I do not know the right answer either. Initially, I used to rely on a list of power supply AMD, but AMD stopped updating it. Since then, I just fell back to the old-school my criteria: start with the combo of power supply that is in the range of $ 50, and then put the extra money for better design and cooling.

Why would a power supply computer that is important, everyone kept talking about watts, and it’s understandable approach. People are always talking about high-end power supply is one reason why servers and workstations are more reliable than standard desktop machines. For example, SGI Octane workstations have 800W power supply, although the MIPS CPU is a highly efficient architecture consumes only about 17W each, the same as x86 notebook chips. But this is the wrong way to choose the power supply computer. First of all you need to decide what the rest of your system will look like, and find out how much power it takes. Then you can buy a power supply that meets your budget.

Budgeting power requirements, First things first: You have to think your power supply is not as one unit, but a box that contains multiple, independent power supply. That is, if you look at the label on the power supply, you will see that the maximum flow registered independently to +3.3 V, +5 V and +12 V. Another way of thinking, imagine the total watts to power water pumps in the reservoir, and that there is a water pump 3.3 V, 5.5 water, and water +12 V. Just be patient with me, it would make sense at the end of this article. Determining the Power Budget, Some people tell you to add the amount of watts that supports your components. For example, an AMD Athlon XP 2000 + (Palomino) uses 87.5W. 23.5W your motherboard, so your 111W power requirement for now. Add all your components and you’re done. The problem is that because the power supply is not unified energy source, 87.5W from the Athlon XP is meaningless unless you know how to 87.5 watts distributed.

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