Power Usage
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Power Supplies: How Much Power Do You Need? |
| Component | Requirement |
| AGP Video Card | 30W - 50W |
| PCI Express Video | 100W - 225W |
| Average PCI Card | 5W - 10W |
| DVD/CD | 20W - 30W |
| Hard Drive | 15W - 30W |
| Case/CPU Fans | 3W (ea.) |
| Motherboard (w/o CPU or RAM) | 50W - 100W |
| RAM | 15W per 1GB |
| Pentium III Processor | 40W |
| Pentium 4 Processor | 80W - 125W |
| AMD Athlon Processor | 80W - 125W |
For overall power supply wattage, add the requirement for each device in your system, then multiply by 1.5. (The multiplier takes into account that today's systems draw disproportionally on the +12V output. Furthermore, power supplies are more efficient and reliable when loaded to 30% - 70% of maximum capacity.)
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TECHNOLOGY CORNERThe Tech Center provides a comprehensive power supply knowledge base that gives you clear and honest facts. more |
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SEE OUR FACILITYOn April 19,1985, PC Power & Cooling began operations in a small warehouse just outside of San Diego, CA. Founded by Doug Dodson. more |
