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Solutions to common computer problems
| serial number | question | solution |
| From 1 to ***, try to operate or replace it to see which part has a problem (must be tested and ruled out in the order from 1 to the last) | ||
| 1 | The computer has a blurry screen |
1. Memory problem: (change the memory) 2. Motherboard: (change the motherboard) 3. CPU: (change the CPU) |
| 2 | computer blue screen |
1. Disconnect the system: reinstall the system 2. Memory: change the memory 3. Motherboard: change the motherboard 4. CPU: change the CPU 5. The computer system conflicts with the software 6. Hard disk: change the hard disk |
| 3 | The computer appears discolored or the display is unstable |
1. Display cable: change VGA or HDMI cable, see which one the customer is using 2. Display: change the display 3. Motherboard: change the motherboard (if there is an independent graphics card, change the graphics card first) |
| 4 | All-in-one does not display |
Whether an external display is displayed 1. it will display: Is the resolution correct, 18.5 inches is 1024*768, 19 inches 1366*768, 19.5 inches 1600*900, 21.5/23.6/23.8 inches 1920*1080 2. the resolution is correct, But it does not display: (1) Check the screen cable, (2) The high-voltage bar connection line and the high-voltage bar, (3) The display screen, (4) The main board. |
| 5 | Desktop, all-in-one, and mini machines are not powered on |
1. Power cord power supply, whether the power supply is good or bad 2. Check whether the interfaces of the main board are loose 3. Main board: change the main board |
| 6 | Desktop, all-in-one, and mini machines do not turn on |
1. Check whether the power supply is good or bad. 2. Check whether each interface is loose. 3. Use an eraser to wipe the gold finger of the memory and the metal contact of the CPU. 4. Check whether the memory and CPU are good or bad. 5. The motherboard |
| 7 | Desktop, all-in-one, and mini machines flash off (click to flash once) |
1. Check whether the power supply is good or bad 2. Check whether the memory and CPU are good or bad 3. Motherboard |
| 8 | All-in-one touch, contact deviation | Reburn Touch Software |
| 9 | All-in-One Touch, Breakpoint |
1. Is the interface between the touch control board and the touch screen well connected? 2. Problems with the touch control board: change the touch control board 3. Problems with the touch screen: change the touch screen |
| 10 | The touch of the all-in-one machine does not respond to the touch |
1. Whether the interface between the touch control board and the touch screen is connected properly. 2. Problems with the touch control board: change the touch control board. 3. Problems with the touch screen: change the touch screen. 4. Main board: change the main board |
| 11 | All-in-one touch, jump point |
1. Check if the touch screen touches other places, causing interference 2. Reburn the touch software |
| 12 | All-in-one touch, slow response |
1. Check whether the computer system is slow, if it is slow, reinstall the system 2. Touch the software again |
| 13 | Automatic shutdown or automatic restart after a while |
1. If the power of the power supply is too low, change the power supply to test 2. Power supply problem 3. CPU heat dissipation: whether the CPU fan is working normally 4. Memory: change the memory 5. Motherboard: change the motherboard 6. CPU: change the CPU |
| 14 | All-in-one splash screen |
1. Whether the screen cable is loose or not 2. Display screen: replace the display screen 3. Main board: replace the main board |
| 15 | desktop splash screen |
1. Is the VGA cable loose? 2. Monitor: change the monitor 3. Motherboard: change the motherboard |
