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How do you protect your power supply from power surges and outages?

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The power supply unit (PSU) is a vital component of your PC, as it converts the AC power from the wall outlet into the DC power that your components need. However, the power supply can also be vulnerable to power surges and outages, which can damage or destroy it and other parts of your PC. In this article, you will learn how to use a power supply calculator to choose the right PSU for your PC, and how to protect it from power problems.

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1 Power supply calculator

A power supply calculator is a tool that helps you estimate how much wattage your PC needs based on the components you have or plan to have. You can find various online power supply calculators, such as the one from Newegg or PCPartPicker. To use a power supply calculator, you need to enter the specifications of your CPU, GPU, RAM, storage, fans, and other peripherals. The calculator will then give you a recommended wattage range for your PSU. You should always choose a PSU that is within or above that range, and that has a high efficiency rating (80 Plus or higher).

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2 Power surges

A power surge is a sudden spike in the voltage or current of the power supply, which can be caused by lightning strikes, faulty wiring, or other factors. A power surge can overload and damage your PSU and other components, especially if they are not designed to handle such fluctuations. To prevent power surges from harming your PC, you should use a surge protector, which is a device that plugs into the wall outlet and filters out the excess voltage or current. You should look for a surge protector that has a high joule rating (the amount of energy it can absorb), a low clamping voltage (the threshold at which it activates), and a warranty that covers your equipment.

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Maya Steele

Computer Engineer
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Another option if you get power outages regularly in your area is to get a surge protector with a battery. This way you have a grace period where the battery will keep your computer on for 15 minutes or so, allowing you to save any work.

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3 Power outages

A power outage is a complete loss of power supply, which can be caused by storms, accidents, or blackouts. A power outage can interrupt your PC's operation and cause data loss, corruption, or damage. To protect your PC from power outages, you should use an uninterruptible power supply (UPS), which is a device that provides backup power to your PC in case of a power failure. A UPS can give you enough time to save your work and shut down your PC safely. You should look for a UPS that has a high power rating (the amount of wattage it can supply), a long battery life (the amount of time it can run on battery), and a software feature that can automatically shut down your PC when the battery is low.

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4 Power supply installation

Once you have chosen and bought the right PSU, surge protector, and UPS for your PC, you need to install them properly. To install the PSU, you need to open your PC case and locate the PSU slot, which is usually at the bottom or the top of the case. You need to align the PSU with the slot and secure it with screws. Then, you need to connect the PSU cables to the motherboard, the CPU, the GPU, the storage drives, and any other components that need power. You should follow the instructions from your PSU manual and your component manuals to make sure you connect the cables correctly and safely. To install the surge protector and the UPS, you need to plug them into the wall outlet and then plug your PC and any other devices into them. You should follow the instructions from your surge protector and UPS manuals to make sure you set them up correctly and test them periodically.

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5 Power supply maintenance

To keep your PSU, surge protector, and UPS in good condition, you need to perform some basic maintenance tasks. You should clean your PSU regularly by using compressed air or a soft brush to remove any dust or debris that might block the airflow or cause overheating. You should also check your PSU cables for any signs of wear or damage, and replace them if necessary. You should replace your surge protector every few years or after a major surge, as its effectiveness can degrade over time or after absorbing a large amount of energy. You should also replace your UPS battery every few years or when it shows signs of low performance, such as short run time or frequent beeping.

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Christopher Sanders
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To highlight the importance of battery maintenance, if you're not diligent and sit on this, you can find instances where the battery could release caustic chemicals. So not only are you creating a potential business impact with failed batteries, you have the potential to create a hazardous situation. Many of these batteries have the potential to release Hydrogen Sulfide (H2S) if they become compromised. It's worth looking up the MSDS regarding that chemical for further information.

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How do you protect your power supply from power surges and outages?

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1 Power supply calculator

2 Power surges

3 Power outages

4 Power supply installation

5 Power supply maintenance

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