🏆Computer repair cases
Computer repair case studiess (6 cases)
Click on any case to view the complete process: receiving → testing → processing → delivery, including time, results and customer feedback. These cases come from our 2025–2026 service records.
PC Repair (6 cases)
Desktop/laptop/motherboard chip level, 30 batch failures also connected
💻Cases
An enterprise office computer batch failure: motherboard capacitor explosion emergency maintenance
30 computers in an enterprise office showed no display at the same time, and the detection found that the motherboard capacitor exploded. After replacing the capacitor overnight, all returned to normal to ensure the normal office of the enterprise.
📱Cases
MacBook Pro water does not boot: motherboard corrosion repair record
The MacBook Pro cannot be turned on after water enters, and the motherboard is corroded in many places. After ultrasonic cleaning and flying wire repair, the motherboard function is successfully restored, and the data is intact.
🔧Cases
Game graphics card garbled screen failure: GPU chip replanting ball repair
RTX3080 graphics card screen, diagnosed as GPU chip false solder. Use BGA rework station to re-implant ball solder, repair after passing 3DMark pressure test.
💻Cases
Lenovo laptop screen fragmentation: original screen replacement + data migration
The user laptop dropped the screen and cracked, replaced the original LCD screen and assisted in data migration, delivered on the same day, and the display effect was as new as before.
💻Cases
The company front desk all-in-one PC does not start: power module replacement
The all-in-one PC cannot be powered on. It is detected that the power module is damaged. After replacing the original power supply, it returns to normal to ensure that the front desk business is not interrupted.
💻Cases
Old computer card upgrade: add SSD + memory
A ten-year-old computer runs slowly. After installing SSD and memory, the boot time is shortened from 2 minutes to 15 seconds. The performance is completely new.
Computer Maintenance Record Articles (4)
Original long article by engineer, including complete troubleshooting process, accessory model and charging details
🔧 PC Repair
Graphics card garbled screen first don't throw: RTX2070 memory cold solder joints reballing record, cost RMB 280 to save a card
Game flash, screen snowflake point, run points off half--memory cold solder joints three signals. BGA reballing process, temperature curve, RMB 280 and new RMB 3000 account how to calculate.
📅2026-09-05 ·Original·Read about 5 minutes
🔧 PC Repair
Laptop automatically shut down when playing games? 90% is the cooling system blocked: Lenovo Legion Y7000 dust cleaning for thermal paste record
With 3 years of games, this CPU hits the temperature wall at 98℃ when it is fully loaded. The whole process of removing dust: dust blanket, dry thermal paste, collapse thermal pad, RMB 150 to restore full blood performance.
📅2026-09-05 ·Original·Read about 5 minutes
🔧 PC Repair
Display flash screen, color spots, dark edges: first distinguish between screen problems or line problems, acceptance do not sign bad screen
The company purchased 20 monitors in bulk, 3 with defective dots and 2 flash screens, and the supplier refused to compensate after signing. Fault triage table, Detection Tools, acceptance process and wholesale procurement avoidance pit.
📅2026-09-08 ·Original·Read about 5 minutes
🔧 PC Repair
32 8-year-old computers do not change machines: batch upgrade SSD records, RMB 380 per capita for three years
Tianhe Trading Company 32 i5 - 4590 machine stuck to want to change. Measured batch upgrade SSD+ memory: boot from 127 seconds to 19 seconds, RMB 380 per capita vs RMB 4500 per capita.
📅2026-09-07 ·Original·Read about 5 minutes