![How To - "No POST", "system won't boot", and "no video output" troubleshooting checklist | Tom's Hardware Forum How To - "No POST", "system won't boot", and "no video output" troubleshooting checklist | Tom's Hardware Forum](https://forums.tomshardware.com/proxy.php?image=https%3A%2F%2Fi.postimg.cc%2F2886SZz0%2F4-Pin-motherboard-CPU-power-connector.png&hash=98fc2e31b606a466b71d0661552eb8f9)
How To - "No POST", "system won't boot", and "no video output" troubleshooting checklist | Tom's Hardware Forum
![An old ASUS motherboard here. The PC only turns on when the small 4-pin ATX12V ISN'T connected. The PC doesn't output anything from the GPU. Can't hear POST beep codes because this An old ASUS motherboard here. The PC only turns on when the small 4-pin ATX12V ISN'T connected. The PC doesn't output anything from the GPU. Can't hear POST beep codes because this](https://preview.redd.it/vlgvajq2d0991.jpg?width=640&crop=smart&auto=webp&s=29d73f24883c3e4e6aafa5308c43b294cee32f27)
An old ASUS motherboard here. The PC only turns on when the small 4-pin ATX12V ISN'T connected. The PC doesn't output anything from the GPU. Can't hear POST beep codes because this
![Motherboard turns on with No Display, No Beeps, Fan running, LED on - CPUs, Motherboards, and Memory - Linus Tech Tips Motherboard turns on with No Display, No Beeps, Fan running, LED on - CPUs, Motherboards, and Memory - Linus Tech Tips](https://pbs-prod.linustechtips.com/monthly_2017_06/IMG_20170624_163309.jpg.d0e6495aa023ca4ae9255006a6e82021.jpg)
Motherboard turns on with No Display, No Beeps, Fan running, LED on - CPUs, Motherboards, and Memory - Linus Tech Tips
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What does 5 beeps bios on PC start up mean? I have no running issues everything is working as usual and I haven't dropped or damaged my PC recently. - Quora
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Desktop Motherboard Starts / Powers on but does not boot / POST No boot No beeps/bleeps LER #178 - YouTube
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