Issue with ongoing VGA illumination - no successful start.
Issue with ongoing VGA illumination - no successful start.
Observing that others might search for answers, it seems the motherboard could be experiencing shorts to the case. Removing it from the case resolves the problem with all original parts functioning.
Many users shared similar experiences. Some suspected micro-cracks in solder joints during assembly or handling, though tests confirmed the motherboard wasn’t the root cause.
The VGA indicator light was on, producing a long beep followed by three short ones—indicating VGA wasn’t detected. This stopped the PC from booting.
Testing steps included swapping PCIe slots, GPUs, and CMOS pins, but none fixed the issue. RAM trials in different slots also didn’t help. Removing all drives and trying another motherboard temporarily improved stability.
Voltage checks on the GPU connector showed proper power delivery (12V on all pins). No changes were made to the CPU or PSU, which had the same model as the original system.
Since a replacement CPU wasn’t tried, and no other component was isolated, further investigation is needed. The situation remains unclear without additional testing.
You've explored nearly everything else, but the PSU is now your final stop. With almost three decades of PC building experience, I know how easily you can miss the PSU or its power cables as a common trouble spot. One of my latest PC problems centered on the PSU. It only became clear when I took it out and tried to disconnect the PCIe power cable—then I noticed the cable was warped against the PSU and wouldn’t move. In my setup, the PC would start but fail immediately once any load reached the GPU, pulling extra power beyond what the slot could supply.
Thanks for your reply, Chris. Your feedback means a lot, and I’m glad we adjusted the PSU. It turned out the motherboard was connecting to the case instead of the power supply—everything functions properly once the motherboard is removed from the case. Quite unusual, though!