To test the motherboard, you first need to understand what are the main causes of breakdowns. After all, it has long been known that if you find out the cause of a breakdown, then you can easily understand how to eliminate this cause.
Instructions
Step 1
To determine the state of the motherboard, whether it is in good condition or not, you need to follow the basic steps that are given below.
With the computer power off, disconnect the mouse, LPT connector, and other devices. Now turn on your computer. It often happens that due to some low-quality device, the entire motherboard does not work.
Step 2
If the motherboard also does not work, then you need to check if the Reset button is working correctly. It happens that she is "whiling away". Disconnect the F_PANEL - RS wire from the motherboard.
Step 3
Check whether the case of the system unit itself is "shorting" or not. To do this, try placing it on a dielectric.
Step 4
Check the voltage on the BIOS battery. If the voltage is less than 2.9V, then the battery needs to be replaced. The consumed current should be in the range of 3-10 μA.
Step 5
Reset the CMOS module with a special jumper. You can also remove the battery and leave it on for a few minutes.
Step 6
Change the power supply or check this one on another system unit.
Step 7
Disconnect all devices on the motherboard, leave only the processor. If the speaker beeps when the power is turned on, then the motherboard is in working order.
