I recently decided to clean my PC for the first time in a while, and during the process, I removed some fans and my GPU to get rid of dust. After reassembling everything carefully, I powered it up, but the monitor displays "No Signal." All the fans are spinning, and the lights are on, but nothing appears on the screen. I've tried reconnecting my GPU to the PCIe slot a few times, even switching from vertical mounting to the standard PCIe slot. I've also tested different cables like HDMI instead of DisplayPort and even removed the RAM. What else can I try to fix this issue?
3 Answers
Have you tried connecting the HDMI directly to the motherboard instead of the GPU? Doing this can help determine if it’s a GPU issue or something else in the system. If you see something on the screen with integrated graphics, check BIOS to see if it recognizes your GPU. By the way, when you cleaned the dust out, did you use canned air or do something else?
Before you try anything else, did you use an antistatic device while working on your PC? It’s important for protecting the components from static electricity during cleaning and repairs.
It sounds like it might be an issue with seating or power connections. Make sure your GPU is seated correctly—push it in until it clicks. Also, double-check the PCIe power cables are firmly attached. Don't forget to plug your monitor into the GPU instead of the motherboard. If that doesn't work, reseat your RAM too and consider clearing the CMOS if needed. Often, it's just a small thing you overlook during reassembly.
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