How To Tell What Power Supply I Have?

It's important to understand power supply, even though they may receive less attention than other components in a PC. Knowing how much power your system has is particularly important if you're building your PC. If you've purchased a pre-assembled PC, the PS should already be configured appropriately for the build, and you shouldn't encounter any problems. However, if you're considering upgrading a pre-built PC, it's a different matter. There are two methods for determining your PC's power supply, and which one you should use will depend on your specific system. This article will provide instructions for finding out what power supply you currently have and what power supply you need.

Check The Packaging/Receipt

One straightforward method for finding out which power supply you have is to open your PC case and read the label on the PS. If you're uncomfortable opening the case, your only other option is to check the information on the original PSU packaging or the receipt for your PC.

Opening Up The Case

If you've thrown away the packaging for your power supply and need to know its specifications, you can open up your PC's case. According to the UL (formerly Underwriters Laboratories), all PSs should have a label with power ratings. Once you've opened the case, try locating the PS and the sticker.

The sticker is on a different side of the PS, so you may need to open the back of the case to see if the sticker is visible. If it isn't, the sticker isn't at the top of the PSU either. In this case, you may need help to determine the exact make and model of your PSU, which could be a problem if you're considering upgrading your system or ensuring that it's compatible with your current build.

If you purchased a pre-assembled PC, you might not have the original packaging for the components, but you should have a receipt or other proof of purchase that lists the brand and model of the PSU. If you bought the PC components individually, try to find the packaging for the PSU, as it should include the make and model.

Conclusion:

If you own a pre-assembled PC, the easiest and most reliable way to determine which power supply you have is to consult the manual or other documentation that came with the PC.

You don't need to open the case and potentially cause problems when the information you need is readily available. If you no longer have the manual, you can find the specifications for your PS by searching for your PC's model online and checking the manufacturer's website.

It will give you the make and model of the PS and any other relevant information you need

Frequently Asked Questions:

How do I tell if my power supply is inadequate?

You can tell if your power supply is inadequate by turning it on and seeing if it works.

How do I tell if my motherboard is bad?

You can tell if your motherboard is wrong by using a multimeter.

How do I tell if my motherboard is overheating?

Looking at the temperature readout, you can tell if your motherboard is overheating.

How do I tell if my CPU fan is terrible?

Looking at the motherboard, you can tell if your CPU fan is terrible.

How do I tell if my CPU fan is spinning?

Looking at the motherboard, you can tell if your CPU fan is spinning.

How do I tell if my CPU fan is not spinning?

Looking at the motherboard, you can tell if your CPU fan is not spinning.

How do I tell if my power supply is overheating? 

You can tell if your power supply is overheating by looking at the temperature readout on your power supply.

How do I know if my power supply is about to die?

If your computer or laptop is getting hot, it might be time for a new power supply.

What do I need to do if I need to replace my power supply?

If you need to replace your power supply, you will need to remove the old one and put in the new one.

What do I need to know about my power supply?

You will need to know how much power your power supply has before you start using it. You need to know how much power you have and when it's time to replace it.