Device fails to post, GPU turns on and off before resuming operation
Device fails to post, GPU turns on and off before resuming operation
Hello, I'm working on improving my 10-year-old PC. The parts list shows everything is installed—CPU, NVMe M.2 SSD, GPU, cooler, and RAM. When booting up the test bench, all components except the GPU function normally. My Gigabyte RX580 4GB GPU doesn't activate at all; the error LED lights up briefly, fans spin for a few seconds, then turn off again before restarting after 5-10 seconds. After about 15-25 seconds, it finally powers on properly. I've checked reseating CPU, RAM, and GPU, but everything seems fine. The issue might be with the PSU, as suggested on Reddit, or possibly a BIOS problem between my CPU and Mobo. The Gigabyte site says this model supports Ryzen 5 5000 series CPUs, which my CPU is. I'm not sure what to try next—PSU, BIOS, or something else. Any advice would be appreciated.
Edit: Monitor never displays anything during this process. Updated July 16, 2022 by Waxted
Uncertain about whether the issue is GPU-related since the monitor output isn't visible or any visible signs. If it restarts two or three times before finally booting and displaying, does it eventually work? Also, note that even though the product packaging claims support for a specific chip model, updates to the BIOS might be necessary for it to function properly.
Thank you for your message. It seems there are no signals displayed on the monitor during use. I've tested using HDMI, DP, and both simultaneously, but nothing appears even after two minutes. My old computer (3570k MSI Z87-G41) shows GPU activity when powered on/off, suggesting a possible GPU issue.
This suggests you might still have a previous GPU. Try connecting it to your current PC and see if it starts up. It should simplify the process.
Observed a recurring issue before—your setup was affected by the board itself. The problem seems tied to the APU's capabilities; the BIOS often defaults to what the APU would normally supply for graphics. I assure you, if you use an AM4 APU and connect your monitor via HDMI, it should function properly. Previously, even with external GPUs, switching back to APU output was necessary, indicating a BIOS-related concern. The best fix is to choose a board less prone to this behavior, as both your boards are from Gigabyte.
It appears the setup might not work with your current configuration. Your CPU needs a separate graphics card, but you’ve updated your BIOS without a new discrete card. The fan behavior and SSD cooling changes suggest hardware quirks. There could be workarounds, though it’s possible the board won’t function well for gaming if it defaults to an APU instead of supporting a dedicated GPU.
I updated the BIOS to the latest version via Q-Flash Plus on the motherboard. The graphics card now functions differently during startup, yet the problem continues. There are no debug indicators visible, and no startup lights appear.
Not always a waste of time—APUs can be useful if you manage to secure one. You can at least test the board to confirm functionality before proceeding. APUs are affordable, so you don’t need a high-end model; just ensure the board supports it (avoid Summit Ridge models). Check compatibility and experiment with modifications to assess usability. If issues persist, consider an RMA rather than purchasing from Gigabyte again.