Mainboard shows VGA red light, black screen occasionally but sometimes connection works.
Mainboard shows VGA red light, black screen occasionally but sometimes connection works.
Hello! Here are your PC details rephrased:
- Processor: Ryzen 5 5600
- Graphics card: Vega 56 GB, 1.4 GHz
- RAM: 2x 8GB at 3200MHz DDR4
- Storage: 500GB Samsung Evo 970, 250GB SATA SSD, 2TB HDD
- Power supply: 600W unit
- Monitors: Usually connected, HDMI and DP 1.4
- Operating system: Latest Windows 11
- Recent issue: PC restarted unexpectedly during a game, RGB lights flickered between VGA and DMA, then went black. Could boot into Windows 11 but kept blacking out. Tried reseating GPU, changing ports, updating drivers, testing with a new SSD, but nothing resolved it. Recently changed GPU thermal paste and everything worked fine. No spare GPU available for testing. Uncertain if the problem is with the GPU itself or another component.
I don’t have the age or condition of your PSU, but it seems like there might be an issue. Even if 600W was sufficient at the time, performance could have dropped and it can’t handle the load anymore. The overcurrent protection might activate unexpectedly. A simple test would be to swap in another PSU and observe if the problem persists. Also, I thought you might have already checked if you properly seated the GPU, RAM, and CPU. If not, give it another shot? Good luck!
I've already attempted to reinstall the GPU and RAM, but not the CPU. Now I'm going to try reseating the CPU. It might be the power supply unit, it's around 4 to 5 years old and an 80+ bronze model. I'll replace the PSU and see if that helps. Additionally, I've ordered a new mainboard in case the problem lies with it.