How to check an atx power supply?: A Step-by-Step Guide
How to check an atx power supply? The ATX power supply is a vital component of a computer system, providing power to all the internal components. If you suspect an issue with your ATX power supply, it’s important to perform a thorough check to ensure it is functioning properly. In this guide, we will walk you through the steps to check an ATX power supply effectively.
Note: Working with electrical components can be dangerous. Make sure to take appropriate safety precautions, such as wearing anti-static wristbands and disconnecting the power cord from the wall socket before starting the process.
Start by visually inspecting the ATX power supply for any obvious signs of damage, such as burnt marks, bulging capacitors, loose connections, or damaged cables. Ensure that the power supply fan is running smoothly without any obstructions. If you notice any significant damage or abnormalities, it may be necessary to replace the power supply.
Power Supply Tester:
Using a power supply tester is an effective way to check the functionality of an ATX power supply. Follow these steps:
a. Purchase or obtain a power supply tester specifically designed for ATX power supplies.
b. Ensure the computer system is powered off and disconnected from the wall socket.
c. Disconnect the power supply cables from the motherboard and other components, including the hard drives and graphics card.
d. Connect the 24-pin motherboard connector from the power supply to the corresponding port on the power supply tester.
e. Connect any additional power connectors, such as the 4-pin or 8-pin CPU power connectors, to the power supply tester if applicable.
f. Plug in the power cord of the ATX power supply into a wall socket.
g. Turn on the power supply using the switch on the back (if available).
h. Observe the power supply tester’s display or LED lights for any indications of voltage or power abnormalities. The tester should show stable voltages within the expected range.
i. Refer to the power supply tester’s user manual for specific instructions and interpretations of the displayed readings.
Multimeter Voltage Test:
If a power supply tester is not available, you can use a digital multimeter to check the voltages of the ATX power supply. Follow these steps:
a. Set the digital multimeter to DC (Direct Current) voltage mode.
b. Locate the 24-pin motherboard connector on the ATX power supply.
c. Insert the black multimeter probe into one of the black (ground) wires on the 24-pin connector.
d. Insert the red multimeter probe into each of the colored wires (e.g., yellow, red, and orange) on the 24-pin connector, one at a time, to measure the voltages.
e. Record and compare the measured voltages with the expected values. Consult the power supply manufacturer’s documentation or ATX specifications for the correct voltage ranges.
The fan within the ATX power supply helps prevent overheating. To check its functionality, follow these steps:
a. Connect the ATX power supply to a power source, ensuring it is securely plugged in.
b. Turn on the power supply using the switch on the back (if available).
c. Listen for the sound of the fan spinning. Additionally, you can visually inspect the fan to ensure it is rotating smoothly.
Checking the functionality of an ATX power supply is essential for maintaining a stable and reliable computer system. By following the steps outlined in this guide, you can perform visual inspections, use a power supply tester or multimeter, and test the fan to ensure the power supply is functioning properly