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Dell Dimension E521 Power Supply
Purchasing a new Dell Dimension E521 PSU is quite simple as long as you have the old one for making size comparisons. Be sure to replace a power supply with at least the same watts, if not bigger. Never go too cheap on a PSU because it is the only barrier between a large quantity of electricity and fragile internal computer components. It is usually pretty easy to install a power supply in the Dimension E521 desktop. The power supply in your Dell desktop is responsible for powering the hardware in the computer.
Important hints the main power source needs a replacement ASAP
- System shuts down while under a heavy load
- You sense smoke in your PSU
- Your desktop will not power on
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