I recently got a compact prebuilt PC (MSI Trident 3) and I was planning to upgrade it. Since the motherboard is proprietary, I knew I would have to get a new one, along with a new case and power supply. Before doing that, I opened it up to check the specs of my RAM, GPU, and CPU to avoid any compatibility issues later on. I found out I have an NVIDIA 3060 Aero ITX OC, an Intel i5-11400F, 16GB of Samsung SODIMM RAM, and a WD Blue 512GB SSD. After putting everything back together, my PC isn't showing any signal on the monitor and there doesn't seem to be any POST signal either. The GPU and CPU fans are spinning, and the case lights are on, but I just can't get it to display anything. Any thoughts on what might be the issue?
3 Answers
It sounds like you might’ve accidentally dislodged something while taking your PC apart. Double-check all your connections, especially the power cables and the ones for the GPU. Sometimes it can be tricky to get everything plugged back in just right after disassembly. Also, make sure your HDMI or DisplayPort cable is secure. If all else fails, try reseating the RAM and GPU.
Just to clarify, there is indeed an Intel i5-11400F, so that’s all good. But if the system doesn’t POST, definitely check that your CPU fan is connected properly too. If all fans are running and there’s still no signal, it could be a motherboard issue or something else preventing a full start.
Yeah, I noticed you mentioned you’re using laptop RAM. When you upgrade, you’ll likely need desktop RAM as it won’t be compatible with standard motherboards. As for why it won’t boot, it might be worth checking if you’ve missed any connectors or if something got damaged during the process. It's easy to miss a connection when reassembling.
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