I recently built a new PC and everything was working perfectly at first. After testing it outside the case, I installed all the components into the case. However, once I powered it up, the motherboard's VGA light turned on, and there was no display. The GPU's lights are on, and the fans spin briefly but then stop. I've reseated the GPU and power cables, checked the motherboard alignment, and even tried running the components outside the case again, but I still get the same VGA error.
To troubleshoot further, I took my PC to a local shop where it booted up without any issues. I paid for them to assemble it properly and watched it work before leaving. But when I brought it home and plugged it in, the dreaded VGA issue returned. The system works fine with the onboard graphics, confirming it's the GPU at fault. Nothing changed on my end except the transport so I'm puzzled. Could this be a power issue, a PSU problem, or something that got shifted during transport? Has anyone experienced something similar?
2 Answers
Did you connect the GPU to your monitor at home? Sometimes, the issue can be with the monitor or the cables. If it worked at the shop, it’s worth checking if your display might be acting up without you realizing it.
It worked on my TV, so I doubt it's the monitor. Still, you might want to try unplugging it and see if that changes anything.
When you transported the case, how did you handle it? The GPU can be sensitive during transport, and something may have shifted. Also, check if your motherboard has another PCIe slot; that could help isolate if it's a slot issue.
Exactly! You might want to test the GPU in a different slot and see if that does anything.
Definitely worth considering—those GPUs can be delicate with movement.
Yeah, that sounds like a logical guess. Sometimes it can just be an issue with the HDMI or DisplayPort cables.