Boot issue after turning off BIOS protection settings.
Boot issue after turning off BIOS protection settings.
my b450 motherboard is colorful, and the pc powers on briefly before shutting down completely. the keyboard and mouse lights up, but there’s no display. it restarts automatically. i’ve tried updating ram, gpu, clearing cmos, and nothing helped. also changed monitors and cables, but the issue persists. luckily, the motherboard is still under warranty, but i’m running out of time and don’t want to wait days.
Here are some quick tips you might find useful:
- Reset the CMOS again, ensuring the power supply is off and wait about 30 seconds. You can either short the two contacts or hold a dedicated button if available. Consider removing the CMOS battery completely.
- Check the debug lights on the motherboard to see if they’re active.
- Try reinstalling the BIOS. It’s possible the write protection was disabled, which might have corrupted it.
- If you’re unsure about your motherboard model or BIOS version, you can use this link: [BIOS download info](https://en.colorful.cn/en/home/product?mid=84&id=878).
- You may need to follow the official instructions for reinstalling.
Feel free to ask if you need more details!
I changed the CMOS multiple times and adjusted the jumper to pins 2-3, yet it doesn’t work. The motherboard lacks a BIOS flashback feature, so I’m giving it another shot. Thanks!