GPU Repair Power Supply Control Unit — Safe GPU Testing Without Damaging Your Board

In this video I walk through my custom GPU Repair Power Supply Control Unit — what it does, how it works, and why every GPU repair technician needs one on their bench. This unit sits between your bench PSU and the GPU under test, giving you controlled, metered power delivery with multiple independent output rails — protecting the card during diagnostics. Output rails: ✅ Variable 0.6V – 30V at 4A (buck-boost, independent) ✅ 1.8V — for VRAM and logic injection ✅ 3.3V — for PEX rail and logic injection ✅ 12.5V — passthrough with live V & I monitoring 📄 Full build guide + circuit diagram + 3D print files: https://gpusolutions.net/gpu-repair-p... 🛒 Buy the pre-built kit (with memory testing software): https://gpusolutions.net/product/gpu-... ────────────────────────────── 🔧 PARTS LIST (AliExpress affiliate links) ────────────────────────────── DC-DC Buck-Boost Converter: https://s.click.aliexpress.com/e/_c3c... PZEM-031 Multimeter Module: https://s.click.aliexpress.com/e/_c4S... Step-Down Buck Converter (x2): https://s.click.aliexpress.com/e/_c34... 3-Pin Switches (x2): https://s.click.aliexpress.com/e/_c32... Banana Plugs (Male & Female): https://s.click.aliexpress.com/e/_c3S... PCIe X1 to X16 Riser: https://s.click.aliexpress.com/e/_c3S... ────────────────────────────── 🧰 MY REPAIR TOOLS PAGE ────────────────────────────── https://gpusolutions.net/repair-tools/ ────────────────────────────── 📺 MORE FROM GPU SOLUTIONS ────────────────────────────── 🌐 Website: https://gpusolutions.net 📧 Book a repair: https://gpusolutions.net/book-device/ ▶️ YouTube:    / @graphicscardrepairs-tk7ql   #GPURepair #GraphicsCardRepair #GPUBenchTesting #GPUDiagnostics #GPUSolutions