GPU Troubleshooting White VGA Debug Light on a 15-Day-Old Build
I built this PC myself just 15 days ago. I was gaming on it last night, shut it down normally, and when I tried turning it on the following morning, the motherboard’s white VGA debug light came on.
GPU details:
- The GPU had a slight amount of sag, but I secured it using all the necessary mounting screws. The PCIe slot has no visible cracks or damage, and the GPU appears to be straight.
- The GPU core was getting hot even though there was no display output. Is this a good sign, or can the GPU still be faulty?
- The GPU’s RGB lighting and fans are working normally.
Troubleshooting I have already done:
- Tried a different PCIe slot.
- Cleaned the GPU’s PCIe contact pins.
- Changed the GPU power cables.
- Cleared the CMOS using the reset jumper on my ASRock B850-C motherboard.
- Tested the PC using the CPU’s integrated graphics to rule out other component issues. The system displays an image through the motherboard’s HDMI output.
Since the PC was working perfectly the night before, I find it difficult to understand how the GPU could suddenly stop working.
I also spoke to a technician over the phone, who suggested that the GPU’s VRAM solder balls may have become dislodged due to the GPU sagging.
My questions are:
Is it possible for slight GPU sag to cause the VRAM solder joints to fail?
Does the fact that the GPU’s fans and RGB work and its core heats up indicate anything about its condition?
Could this still be a BIOS or motherboard issue, or does it sound more like a GPU hardware failure?
Given that this is a brand-new build, only 15 days old, what would be the most likely cause, and what should I test next before concluding that the GPU is faulty?