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Dell PowerEdge SC420 Power Supply
It is a pretty straighforward job to install a power supply in the PowerEdge SC420 desktop. The PSU, or power supply, is in charge of distributing power to the hard drive, motherboard and any other peripherals in the PC. It is always better to replace a PSU with the same size or bigger. You do not always want to go with the cheapest PSU as it is the final barrier between a large quantity of electricity and fragile internal computer components. Purchasing a new Dell PowerEdge SC420 PSU is a piece of cake, provided you are still in posession of the old power supply for comparison.
Warnings to watch for in a failing PSU
- Computer will not power on
- System shuts down while under a certain amount of stress
- You see anything burning in the PSU
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