![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
![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%2FXNdmhHd5%2FPOST-codes-display-LED.jpg&hash=6206a6a0d7ad642dba24fd53f4e5085c)
How To - "No POST", "system won't boot", and "no video output" troubleshooting checklist | Tom's Hardware Forum
![Motherboard] Troubleshooting-No post or BIOS no display on WS Motherboard with Graphics card(VGA switch) | Official Support | ASUS USA Motherboard] Troubleshooting-No post or BIOS no display on WS Motherboard with Graphics card(VGA switch) | Official Support | ASUS USA](https://kmpic.asus.com/images/2022/12/02/fb77e026-3ec0-4dbe-9e21-a7be0b989f4c.png)
Motherboard] Troubleshooting-No post or BIOS no display on WS Motherboard with Graphics card(VGA switch) | Official Support | ASUS USA
What is a post code in motherboards? I hear it a lot, and I am about to buy a motherboard. How does this ''post code'' work, and what is it? - Quora
![PC doesn't post, what could this issue be? CPU fan spins up but then slows down, and spins up again, and so on. PSU fan does the same. I already cleared CMOS PC doesn't post, what could this issue be? CPU fan spins up but then slows down, and spins up again, and so on. PSU fan does the same. I already cleared CMOS](https://external-preview.redd.it/LlmJV6celBEBO-yE6y7Gqk7xnq_qRsYE9tz30TrqG6U.png?width=640&crop=smart&format=pjpg&auto=webp&s=4bec4cc368dc4c9009e119c88c509cd9b40a5f7a)
PC doesn't post, what could this issue be? CPU fan spins up but then slows down, and spins up again, and so on. PSU fan does the same. I already cleared CMOS
![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
![computer wont post so changed motherboard and CPU and now turns on for 30s and then off and on. — Micro Center computer wont post so changed motherboard and CPU and now turns on for 30s and then off and on. — Micro Center](https://us.v-cdn.net/6031942/uploads/editor/gi/oi2jf738ff11.jpg)
computer wont post so changed motherboard and CPU and now turns on for 30s and then off and on. — Micro Center
![Carboot Pickup - Asus 'P5Q Green' Motherboard - No Post / Reboot Loop Troubleshooting / Fix Attempt - YouTube Carboot Pickup - Asus 'P5Q Green' Motherboard - No Post / Reboot Loop Troubleshooting / Fix Attempt - YouTube](https://i.ytimg.com/vi/FEpzRE4_9Yo/maxresdefault.jpg)
Carboot Pickup - Asus 'P5Q Green' Motherboard - No Post / Reboot Loop Troubleshooting / Fix Attempt - YouTube
![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%2FDyYN49Kt%2F8-Pin-CPU-power-connector.png&hash=3975bb8e70aedcbe319a31f27cc75c6d)