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Dell OptiPlex 390 Power Supply
The PSU, or power supply, is responsible for powering the hardware in the computer. It is usually pretty easy to install a new PSU in the OptiPlex 390 desktop. It is always a good idea to replace a PSU with a similar wattage or bigger. You do not always want to go with the cheapest PSU as it is the only thing between the power coming from your wall and delicate components inside your Dell. Purchasing a new Dell OptiPlex 390 PSU is quite simple as long as you have the old one for making size comparisons.
Subtle cues of an ailing primary power supply
- The Dell shuts down while processing a taxing load
- You see burnt wires in the PSU of your Dell
- The PC is unable to turn on
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Dell OptiPlex 390 power supply should be purchased new because of wear and tear on an older one. It is in your best interest to make note of the manufacturers part number so you order the correct power supply replacement. The Dell OptiPlex 390 desktop will be happier for buying the right part! Always get computer parts from a well-known website when buying parts online.
Feel free to download your manual for help.
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