Another Graphics card not working after cleaning with an air duster

northwestrepair

16 Jul 202308:50

Summary

TLDRIn this engaging repair video, the host examines a damaged EVGA 2080 GPU, which was poorly shipped and reportedly failed after being cleaned with compressed air. Initial inspections reveal previous tampering, prompting the host to test for shorts and replace a blown fuse. After resolving power consumption issues and replacing a faulty IC, the GPU's performance improves, but high temperatures persist due to fan control problems. With adjustments made via software, the GPU is successfully repaired and ready to be returned to its owner, highlighting the importance of careful handling and effective troubleshooting in GPU maintenance.

Takeaways

😀 Poor packaging can lead to significant damage during shipping, as seen with the GPU's condition upon arrival.
🔧 A thorough inspection revealed the GPU had been previously refurbished inadequately, raising concerns about its condition.
⚡ Initial testing showed no shorts, but a blown fuse indicated a deeper issue with the power supply to the GPU.
🛠️ Replacing blown fuses and ensuring proper connections is crucial for restoring power to the GPU components.
🧊 The choice of thermal pad thickness is important for optimal contact with the GPU core; 1mm pads were selected in this case.
🔍 The process involved replacing a faulty IC to address performance issues related to the GPU's core frequency.
📊 After replacing the IC, power readings improved significantly, indicating a successful repair step.
🌡️ Thermal management is critical; high temperatures can indicate issues with fan performance or thermal paste application.
🎚️ Adjusting fan settings using software (like EVGA's Precision X) can effectively reduce GPU temperatures.
🚚 The repaired GPU was ultimately restored to functionality and prepared for return to its owner, demonstrating the effectiveness of careful troubleshooting.

Q & A

What was the condition of the GPU when it was received?
-The GPU was received in poor condition, with the package banged up and the GPU tumbling freely inside with no protection.
What specific model of GPU was being repaired?
-The model being repaired was an EVGA 2080.
What issue did the owner report about the GPU?
-The owner reported that the GPU stopped working after it was blown with compressed air.
What did the technician find upon opening the GPU?
-The technician found that the GPU had been opened previously, cleaned, and poorly refurbished with a small drop of new thermal paste applied.
What was the result of the initial power test on the GPU?
-The initial power test showed almost no power consumption, indicating a problem.
What did the technician discover about the coils on the GPU?
-The technician found that one of the three coils, which should all be 12 volts, was not functioning properly and had a blown fuse.
What steps did the technician take to diagnose the GPU?
-The technician checked for shorts, tested power rails, and replaced a malfunctioning IC to determine the cause of the issues.
What did the technician use to clean the GPU after repairs?
-The technician used alcohol and a soft bristle toothbrush to clean the GPU and remove silicone residue.
What issue was found with the temperatures during testing?
-The technician noticed that the temperatures were unusually high and switched from overclocking to normal settings without significant improvement.
How was the fan speed issue resolved?
-The fan speed issue was resolved by resetting the firmware settings using the Precision X software, which led to a 15-degree drop in temperature.