Learn to solder and repair: https://www.techdemy.de ▬▬▬▬▬▬▬ Our channels ▬▬▬▬▬▬▬ A board-level repair on a graphics card is a complex and technical process that goes far beyond basic troubleshooting. This type of repair involves working with the printed circuit board (PCB) and requires expertise in electronics, knowledge of soldering components, and access to special diagnostic tools. Here is a basic guide for a board-level repair of a graphics card: Important notes: Warning: Board-level repairs often void the warranty. You should only proceed if you have experience working with sensitive electronics. Tools: Multimeter, Helpful : Oscilloscope (if you have one), hot air soldering station, soldering iron, spare components (transistors, resistors, capacitors, possibly MOSFETs, memory chips) 1. Identify graphics card and find schematic drawings Find out what exact model of graphics card you are repairing (e.g. NVIDIA GTX 1080, AMD RX 580). Search online for schematics or boardview files that show the board structure and the card's circuitry. 2. Visual inspection Perform a thorough visual inspection of the board. Look for signs of: Burnt components: Capacitors, resistors or MOSFETs that have been exposed to heat. Loose components: Some SMD components may come loose or break. Cracks or deformation: Inspect the board for hairline cracks. 3. Multimeter diagnostics Use a multimeter to check the resistance of important power rails (12V, 5V, 3.3V). Make sure there are no shorts. Check the coils, MOSFETs and other components for proper functioning. Measure power good signals: Check the voltages at the test points on the board to make sure the various voltage regulators are working. 4. Check and replace SMD components Identify defective SMD components (e.g. resistors, capacitors, MOSFETs). You can desolder these components with a soldering iron or hot air station. Replace defective parts with new ones (make sure the values ​​are correct). 5. GPU reballing or reflow (if GPU problem) Very complex and difficult, cannot be carried out correctly without a BGA machine. Please do not put your card in the OVEN! 6. Test VRM (Voltage Regulator) The voltage regulator modules (VRM) that provide the voltage for the GPU and memory are common sources of failure. Check the MOSFETs and capacitors in these circuits with the multimeter. If they are damaged, replace them. 7. Check EEPROM and BIOS Check the BIOS of the graphics card. Sometimes a damaged BIOS can cause problems. Flash the BIOS of the card with the appropriate software and a suitable BIOS file that you can find on Techpowerup. (CH341A Programmer) 8. Component test and replacement Memory chips (VRAM): Sometimes memory chips can also be damaged. With special software you can test whether all VRAM chips are working properly. However, replacing defective memory chips is very demanding. Voltage converters: Defective voltage converters can lead to a faulty power supply. These components must be carefully checked and replaced if necessary. 9. Cleaning the board If you did any soldering, clean the board with isopropyl alcohol and a soft brush to remove any flux residue. 10. Testing the graphics card Reinstall the graphics card into the system and test it under load using benchmarks like 3DMark or FurMark to make sure the repair was successful. Monitor temperatures and voltages to make sure the card is stable. Additional tips: ESD protection: Always use anti-static measures to avoid damaging components. Experience: These repairs require a high level of expertise. If you are not familiar with SMD soldering, reballing, or working on PCBs, it is advisable to have the card repaired by a professional. You can use these steps to attempt to repair a broken graphics card at the board level. Some of the steps, particularly reballing or replacing VRAM, require special tools and a lot of experience. ▬▬▬▬▬▬▬ Our channels ▬▬▬▬▬▬▬ Learn soldering and modding: https://www.techdemy.de ► TikTok: / techmagnet​ ► Youtube Main (EN): / techmagnet ► Instagram: / techmagnet_yt​ ► Twitter: / techmagnet_yt​ ► Twitter: / techmagnet