Upgraded GPU caused red and yellow lights to appear on the motherboard.
Upgraded GPU caused red and yellow lights to appear on the motherboard.
Details: CPU model AMD Ryzen 5 7600x 4.7 GHz with 6 cores. Cooler used Cooler Master Hyper 212 Black Edition 42 CFM. Motherboard ASRock B850M Riptide WiFi Micro ATX with AM5 BIOS. RAM installed 2x816 GB Lexar Ares DDR5. Storage options included Western Digital Blue SN580 500 GB M.2-2280 PCIe 4.0 X4 NVME drive and an Asus PRIME OC GeForce RTX 5070 (previously GeForce 1660 Ti). Power supply MSI MAG A850GL 850W, 80+ Gold certified, fully modular ATX design. OS is Windows 11 Home OEM DVD 64-bit. Issue arose after upgrading GPU: red and yellow indicator lights appeared on the motherboard while the monitor displayed "no signal." All other components powered on normally, including fans and the new GPU. Attempted to reinstall GPU, re-seat CPU, changed RAM sticks, performed BIOS flashback, and even tried clearing CMOS battery. The problem started shortly after the GPU upgrade, with no prior issues before that.
How long are you waiting? It could just be doing memory training and that can take a while, usually 10-15 minutes, but some have reported longer training times.. both those lights relate/can relate to memory training. Some motherboards will go through all this crap after ANY hardware changes. A note on trouble shooting; If the only thing you touched in your system is the GPU, why in the world are you messing with the CPU? How would any CPU/socket pins get bent if all you did was swap GPU's? Only check things you actually changed first as going about it the way you have can actually compound issues and make it harder to diagnose. You have to approach troubleshooting methodically.
My MSi B650 Tomahawk occasionally displays an orange light while running the 7700X and 6000 DDR5. The process involves memory training, which requires leaving it on for several minutes.
If you reinstall the 1660ti, and remove the GPU to use the built-in CPU graphics, problems might arise if you upgraded your GPU without reinstalling Windows. However, this shouldn't stop your computer from starting. Verify all connections and cables are correctly placed in their headers. Consider resetting the CMOS memory after updating your BIOS—it can resolve many issues. Ensure your motherboard supports EZ Flash BIOS or a similar option; if so, you may attempt a BIOS flash again. This process needs only a functioning motherboard and power supply. Good luck!
Thank you for your patience. I experienced delays multiple times, ranging from 15 minutes to over an hour, but nothing resolved the issue. After reinstalling the 1660 Ti, it still failed to pass the POST test. The system was already installed on Widows, and my motherboard supported EZ flash updates. I rechecked the board, noticed some physical damage—several pieces were loose and disconnected. Eventually, I returned the motherboard and upgraded to a better model. Everything now functions properly, and I’m grateful for the support received. It looks like my troubleshooting approach was effective.