GPU Workbench Lab
Real GPU repair cases based on daily hands-on work — diagnosing faults, attempting repairs, and sharing practical insights.
Quick Fixes & Shorts
RTX 20 Series GPU Resistance Values – Complete Diagnosis Guide
Learn RTX 20 series GPU resistance values and how to diagnose faults using VCore, VMem, PEX, and power rails. Complete repair guide for technicians.
RX 6600 XT Missing Phase Issue – IR35217 Controller Diagnosis (Real Repair Case)
Real-world diagnosis of RX 6600 XT missing VRM phase issue, tracing fault to IR35217 PWM controller and explaining practical repair approach.
GTX 1660 Super Resistance Values – Complete GPU Diagnosis Guide
Complete GTX 1660 Super resistance values guide with real diagnostic methods to identify shorts, VRM faults, and GPU repair issues.
Zotac GTX 1060 Mini: Missing Voltage Rails & Missing Components Repair
A practical repair log for a Zotac GTX 1060 Mini with missing voltage rails due to knocked-off PCB components.
RTX 3060 Ti No Display Complete Repair Guide
A complete, real-world technician's guide to diagnosing and fixing the common 'no display' problem on RTX 3060 Ti graphics cards.
How to Test a MOSFET Using a Multimeter (GPU Repair Guide)
Step-by-step guide to testing MOSFETs on GPU boards using a multimeter, covering resistance, diode mode, and fault identification techniques.
How to Test MOSFET on GPU (Real Multimeter Method – No Guesswork)
Practical guide to testing MOSFETs on GPUs using a multimeter with real diagnostic methods and common mistakes explained.
MOSFET Failure Symptoms in GPUs – Practical Diagnosis & Repair Guide
Detailed guide to identifying MOSFET failure symptoms in GPUs, including no power, short circuits, missing VCore, and overheating issues, with practical diagnostic steps.
Fix No Display, VRAM & POST, VRAM Reballing Issues GPU Issue
Step-by-step guide to diagnose and repair no display, VRAM faults, and intermittent POST issues using practical board-level techniques.
GIGABYTE GTX 960 OC 4GB – Step-by-Step GPU Repair Guide
This repair case focuses on diagnosing and fixing a GIGABYTE GTX 960 OC 4GB graphics card with two primary failure types: VRAM instability and intermittent POST issues.
GPU Overheating Fix: Step-by-Step Repair Guide
Practical thermal diagnosis, airflow checks, paste and pad strategy, and what to do when overheating keeps returning.
GPU Artifact Repair: Colored Lines, Blocks, and Flicker
How to separate cable/driver noise from actual VRAM or power-path faults and what repair validation should include.
Graphic Card Not Detected: Full Troubleshooting and Repair Path
From PCIe seating and BIOS setup to board-level diagnosis when GPU is missing in Device Manager or BIOS.
GPU Fan Not Working: Zero RPM, Noise, and Repair Options
Diagnose fan behavior correctly, identify header/controller faults, and avoid heat damage from delayed action.
GPU Repair Cost Guide: What Changes the Final Estimate
Understand realistic pricing ranges and which hidden factors push estimates up or keep repairs affordable.
GPU Thermal Paste Replacement: Correct Method and Mistakes to Avoid
A detailed guide to replacing GPU thermal paste correctly with pressure, pad, and testing best practices.
Cleaning GPU Fan Properly: Safe Method for Better Cooling
Step-by-step fan cleaning guide to reduce dust load, improve airflow, and avoid damage while servicing.
GPU Artifact Examples: What Different Visual Glitches Actually Mean
A practical pattern-based guide to interpreting GPU artifact symptoms and choosing the right next diagnostic step.