Ryzen 1600 on stock cooler, how to explain that weird OC behaviour?

radk33

Prominent
Sep 13, 2017
2
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510
Mobo: Asus prime B350 plus (latest BIOS)
CPU: Ryzen 1600
Cooler: stock
RAM: Corsair LPX Vengeace 3000mhz (2x4GB) CL15

My attempt to get 3.8ghz was successful (used Ryzen Master). 1.2625V, temps went up to 76C after 3h of prime95 on 2133Mhz RAM. I started to push ram in bios by activating Asus DOCP and set it on 2933Mhz, I used my parameters from Ryzen Master in bios as well, and here came the problems.

Processor wasn't anymore stable. I went back to 2133Mhz to check CPU stability, used Ryzen Master again. Basically to starting point. Finished with 3.7ghz under 1.3V, temps up to 68C prime95 2 hours. CPU is not stable at 3.8ghz mark with 1,35V...

I made CMOS reset, checked new bios again. It didn't help. How is that possible that I lost so much silicon potential?
 
Solution
No chip are the same, some wont clock as high. Regarding to RAM stability, that is a known issue with Ryzen CPU. Most cases has been fix by BIOS updates by now, but i still see many people here in the forums with ram problems when running at higher speeds.
No chip are the same, some wont clock as high. Regarding to RAM stability, that is a known issue with Ryzen CPU. Most cases has been fix by BIOS updates by now, but i still see many people here in the forums with ram problems when running at higher speeds.
 
Solution