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Hey everyone,

I've noticed a lot of posts lately about PCs failing to boot up correctly. This can be frustrating, but many issues are common and have straightforward solutions. I wanted to create a thread to consolidate some of the most frequent problems and their fixes.

Common symptoms include:

• No power, no lights.
• Lights and fans turn on, but nothing on screen (black screen).
• Beep codes from the motherboard.
• Error messages during boot (e.g., "No bootable device").

Let's break down some potential causes and what you can do:

1. Power Supply Unit (PSU) Issues

Often the culprit for "no power" or intermittent failures. Ensure it's properly connected and powerful enough for your components.

2. RAM (Memory) Problems

Loose or faulty RAM sticks are a very common cause of POST (Power-On Self-Test) failures, leading to no display or beep codes. Try reseating the RAM or testing with a single stick.

3. Graphics Card (GPU) Issues

Similar to RAM, a dislodged or faulty GPU can cause a black screen. Ensure it's seated correctly and its power cables are connected.

4. Motherboard or CPU Failure

Less common, but still possible. Beep codes can sometimes point to specific motherboard or CPU errors.

Please share your boot-up problems below! If you have a solution that worked for you, don't hesitate to post it. Let's help each other out.

Keywords: PC won't start, no boot, black screen, beep codes, PSU, RAM, GPU, motherboard, troubleshooting.

Great thread, TechGuru88!

I had a black screen issue last week after upgrading my GPU. Turns out I forgot to plug in the second 8-pin power connector to the new card. Felt like an idiot, but it fixed it immediately!

Always double-check all power connections, especially after hardware changes!

This is super helpful. I recently encountered a PC that would turn on but get stuck on the motherboard logo with no further progress. No beep codes, just a frozen logo.

After trying everything else, I ended up unplugging all non-essential peripherals (USB devices, extra drives, etc.) and it booted fine. It turned out to be a faulty USB hub that was somehow interfering with the boot process.

Tip: Try booting with the absolute minimum hardware connected: CPU, one stick of RAM, motherboard, and GPU (if no integrated graphics).