Only when IGPU is detected starts the boot, otherwise it fails without an installed GPU.
Only when IGPU is detected starts the boot, otherwise it fails without an installed GPU.
Hey everyone, I’m really struggling here. I’m just a beginner with PCs and I’m hoping someone can assist me. I’m using my old GPU from a previous computer, which was working perfectly fine. But now that I’ve built a new PC—everything except the GPU is brand new—I’m getting nothing on the screen. The fans are spinning as expected. What’s odd is that when I swap in the built-in GPU instead of the dedicated one, the system boots normally. However, once the dedicated GPU is removed, the screen goes black and I have to reset it. This doesn’t happen with the internal GPU. I’ve updated the BIOS, turned off the integrated GPU when it was installed, changed the PCIe Gen 4 to Gen 3 even though all parts are Gen 4, and checked the riser cable—nothing seems wrong. The GPU from my old PC still works without issues. What I’m doing so far includes updating BIOS, disabling the integrated GPU during installation, switching to Gen 3 PCIe, and testing the riser cable. The GPU itself is fine, but it seems the setup isn’t compatible with the new hardware.
May seems a bit odd but you managed to link power from the PSU? (It looks like it's dark in this shot) Also, are you plugging HDMI straight into the GPU instead of the motherboard, right?
It doesn't seem like a simple error—it's something I've encountered before. Everything works together as intended. The HDMI cable should connect the screen to the GPU, not the motherboard. There are two PCIe power cables (6 and 8) linked from the PSU to the GPU's PCIe slots. When I'm at home, I'll share photos of the setup. This should help with troubleshooting.
It seems the GPU wasn't connected during this session. Quick update: I just replaced my power supply, motherboard, and GPU, then reconnected everything. The PC starts up now, even with the GPU connected, but after a while (about half an hour) a black screen appears randomly. “No Signal” shows up, so I have to press the reset button to restart. This happens when I idle in BIOS or boot into the OS and do some tasks. It doesn’t matter. After about half an hour of idling in BIOS, the CPU and motherboard temperatures look normal, though I feel the parts are much hotter than indicated.