X470 Taichi + 5900X - random freezes, reset

Dear

2 moth ago I have bought Ryzen 5900X, and installed on my X470 Taichi. BIOS 4.70, latest AMD chipset drivers, CPU stock settings, no OC, two kits RAM tested, two gfx card drom AMD nad Nvidia. Same results.

I get random freezes and resets. It happens once a day, maybe two in random moments, always when idle. Windows does not register any error code, because it looks like freezes (similar when chip is too much overclocked) and reset with no bluescreen. Any kind of stress test does not show any problem. Both when testing RAM, GPU and RAM.

What can be a reason? Is it hardware CPU failure? Or beta BIOS issue? That Mobo used to work with Ryzen 1700 with no issue at all.

Anyone had similar problem? Perhaps there is some settings in BIOS that can be tweaked to avoid that bug?

Thanks a lot.
Lukas

Ghungha wrote: Same problem here I've upgraded a 2700x to 5900x 2 weeks ago, bios 4.70 and system gets random reboots even using bios defaults (memories set to 2133 MHz)

Hi
If you have your RAM tested 100%, just set them on XMP, as they should be. It shouldn't be an issue. I have some tip for you. I found some info telling that PBO (Precision Boost Overdrive) can cause that issues. First what I've done was , reset BIOS to default, switch PBO into ENABLE (not AUTO as it was as default). Since that I haven't had any reset for few days. If I will get any reset, next step will be turn PBO off.