How To Find Out Power Supply Wattage On Pc?

Power supply wattage is an important factor to consider when building or upgrading a PC. It determines the amount of power your system can handle, which in turn affects the stability and performance of your components. However, finding out the exact wattage of your power supply can be a daunting task, especially for those who are new to the world of computer hardware.

Fortunately, there are several methods that you can use to determine the wattage of your power supply. These methods include checking the label on the power supply itself, using software, or calculating the wattage based on the components installed in your system. By understanding how to find out the power supply wattage on your PC, you can avoid potential issues such as component failure, system crashes, and overheating.

How to Find Out Power Supply Wattage on PC?

Power supply wattage is an important aspect of a computer system and has a significant impact on the overall performance and stability of the system. It is essential to know the right power supply wattage required for your PC to ensure that the system works seamlessly.

Here are some steps to help you find out the power supply wattage of your PC:

1. Check your power supply unit’s label – Power supply units (PSUs) usually have a label that displays the model number, voltage, and amperage. The label may also state the wattage rating of the PSU.

2. Check the manufacturer’s website – If you can’t find the label or it’s unclear, check the manufacturer’s website for specifications of your PSU model.

3. Use a PSU calculator – There are several online power supply calculators available that take into account your system’s components, including the processor, graphics card, and number of peripherals. Input the data, and it will calculate the recommended wattage for your PC.

4. Consult a professional – If you’re unsure of what to do or don’t want to risk damaging your PC, consult a professional technician to help you identify the wattage required for your PSU.

In summary, finding out the power supply wattage required for your PC is an essential step in building or upgrading your system. You can use the PSU label, manufacturer’s website, online calculator, or seek the help of a professional to find out the right wattage supply for your PC.


1. Q: How do I check the power supply wattage on my PC?
A: You can check the power supply wattage on your PC by opening the side panel of your computer case and looking for a label on the power supply unit (PSU) that indicates its wattage.

2. Q: What is the importance of knowing my power supply’s wattage?
A: Knowing your power supply’s wattage can help you determine if it can support the hardware you currently have or plan to install in your computer.

3. Q: Can I check my power supply wattage without opening my computer case?
A: Yes, you can use software tools like HWiNFO and AIDA64 to check your power supply wattage without opening your computer case.

4. Q: What happens if my power supply wattage is too low?
A: If your power supply wattage is too low, your computer may experience sudden shutdowns, instability, or random freezes.

5. Q: Can I upgrade my power supply for higher wattage?
A: Yes, you can upgrade your power supply for higher wattage, but make sure to choose a power supply with enough power to support your hardware and has the right connectors.


In conclusion, it is important to ensure that your PC has the right wattage power supply to avoid performance issues or damage. By using the various methods discussed in this article, you can easily determine your power supply wattage and make informed decisions about your upgrade needs. Remember, it is always better to be safe than sorry when it comes to your PC’s performance and longevity.

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