[Please help] X399 TaiChi BIOS problem? Ryzen Master cannot control setting?

Sep 20, 2018
1
0
10
Hi all i recently change to Asrock x399 Taichi for my TR1900x but encounter some problems, spent a lot of time but no use, please help!

1.Wrong temp sensor lead to unnecessary CPU underclock?
I notice the cpu temp shown in BIOS is wrong, it say 7x-8x degree when I turn on my PC, but actually it is just around 3x - 40 C (shown in Ryzen master and HW Monitor.)
During prime95, CPU will underclock and I guess this is due to the thermal protection because BIOS think cpu is over heat >100C (rmb even 3x degree BIOS though is 7x degree)
It leads to a problem that I cannot load heavy program at full speed.

2. Ryzen Master cannot control the voltage and clock rate
Becasue my water cooling AIO is not very good, I like to de-voltage the CPU at around 1.25V to run at base@3.8GHz to lower the temp. Everytime when I want to apply the setting, ryzen master request me to restart my PC, after restarting nothing is changed and if I apply the setting again Im requested to restart my PC, like a loop but nothing works.
(PS: I reset and flash the BIOS, ryzen works. But after a day it doesnt work again. I dont want to infinitely reflash bios every day.....)


Anyone have similar problem? how to solve it? thanks
so much
(NOT CPU/ryzen master problem...)
 
Solution
Have you updated the motherboard Bios?
bios 2.0 mentions syncing with HWmonitor, so you may want to try that to monitor temps since we really don't know which one is showing you the correct temps (bios or Ryzen Master).