I recently upgraded my CPU from a Ryzen 5 2600 to a Ryzen 9 5900x, but now my computer keeps freezing. I had set the CPU clock limit to 2800 MHz in the BIOS and turned off Precision Boost Overdrive (PBO), which allowed Windows to start up fine. However, after I disabled the clock limit, I can no longer access the BIOS at all. What steps should I take to resolve this issue? Just as a note, I used translation for this question, so it might sound a bit off. Here are my specs: CPU: Ryzen 9 5900x, GPU: RTX 4060, Motherboard: Steel Legend B450, RAM: 16GB, Power Supply: 700W.
5 Answers
If clearing the CMOS doesn't work and still no BIOS access, maybe try reinstalling your old CPU to see if it boots up. After you get it running, download the latest drivers for your motherboard directly from the manufacturer's site, specifically for your new CPU. Sometimes a CPU needs specific drivers to work correctly, especially if it's not recognized.
So, why did you set the clock limit to 2800 MHz? That's pretty low for a 5900x, which has a base clock of around 3.5 GHz. If heat was your concern, try using Eco Mode instead. But if you can’t access BIOS, definitely try removing that CMOS battery for a couple of minutes. Also, did you update your motherboard’s BIOS before switching CPUs? That could be important since your B450 might not handle the new processor well without the latest firmware update. Just a heads-up, you might need to keep an eye on overheating issues with that setup too.
Even in Eco Mode, the freezing was bad, which is why I thought to set the clock limit myself, but yes, the BIOS is up to date.
If you reused the cooler from your old CPU, it might not be efficient enough for the 5900x, leading to overheating issues. Use HWInfo64 to check your CPU temps while stress testing. It’s crucial to keep an eye on your core temperatures, so you can see if that’s an issue.
Sorry for the lack of details, but my CPU temperature wasn't that high.
First thing you should try is clearing the CMOS. Just unplug your PC, take out the round battery for about 30 seconds, and then pop it back in. This will reset your BIOS to its default settings, which might help you regain access to it.
Ok then I'll try it, thanks!
Definitely make sure to have the latest BIOS version installed from the manufacturer's website. Also, don't forget the CMOS reset that everyone else has mentioned!
Does the CPU even have drivers?