PC fails to power on following GPU connection
PC fails to power on following GPU connection
Hello, after linking the GPU to my machine it fails to activate. A clicking sound occurs but no action takes place. It functions flawlessly with IGPU, yet not with the GPU I have. I've used two graphics cards (RTX 4070 Super and RX 6700 XT), tried connecting them to various power connectors in the PSU (only those marked with CPU/PCI-E labels), adjusted settings in UEFI, reset the system, but nothing works. My setup includes: CPU - Ryzen 5 8600G, Motherboard - MSI Pro B650M-A WiFi, RAM - Corsair Vengeance 32GB DDR5 5200MHz, Power Supply - Gigabyte UD750GM 750W, CPU fan - Endorfy Fera 5 Dual Fan.
1. The power supply unit isn't working properly to feed energy to the graphics card—tried various cards without success.
2. The GPU is malfunctioning and preventing the system from starting up.
3. The PCIe connector is damaged. You might have installed it in a different slot.
4. The motherboard connection isn't secure enough, and with the GPU in place it's making contact with the case, causing a short circuit. Consider building the PC from scratch on a flat surface.
I purchased it in the after-return condition (14 days) from a reliable shop, but if it's actually faulty, it remains under warranty. 3. The power supply is too large to fit into the second slot. I understand that the LEDs on the RTX card worked when connected to a PCI-E slot, but not with the power supply. The computer started up, but only the GPU was functional—not the GPU itself. I hope this didn’t damage that slot, since the second one isn’t nearly as good as the main one, which would significantly limit my GPU options. 4. I’m unsure about the MOTO (motherboard) type. Or perhaps I don’t understand English well enough. I’ll attempt to remove everything from the case and try again. I bought another GPU power cable, so tomorrow I’ll check if my current one is still working or not. Is there a correct way to connect those cables? Are they labeled left and right, or does it don’t matter which slot the GPU goes into? (Just to clarify, I’m not referring to the one connected to the power supply—it wouldn’t fit at all.)
Are you using a modular power supply? Then your connection from the PSU to the GPU might be difficult to swap. The port on the PSU side (the order or the wires) changes between models and can also cause issues if you don’t use the original cable that came with the PSU.
I purchased the cable but it didn't fit, so I sent it back. I also checked another original in the box, but it didn't work either. I removed the motherboard from the case, inspected both PCIe ports, verified every port on the power supply with CPU and PCIe labels, took out one RAM stick, swapped both into different slots, but the PC still wouldn't boot. It functions without a GPU, so I’m returning the power supply because I did everything possible—it must be defective.
After bringing the power supply back to the shop for repair or replacement, I received a message saying it was fine. Seven days later, they told me they wouldn’t have it in stock anymore and offered a refund. I took the money back and purchased a new PSU, which functioned properly. Issue resolved.