BIOS update is not recommended unless your system is NOT working properly.
X570 BIOS AGESA 1.0.0.3ABBA
Caution!!
1. Better download the latest AMD tool (Ryzen Master) from AMD website for verification
2. This BIOS does not affect DRAM overclocking much but memory may become a little bit more unstable above 4600Mhz (MICRON)
3. You may try disabling GearDownMode to have better performance if using HYNIX single side die
4. Might not observe significant change if CPU cooler is not powerful enough (Stock Cooler)
Note.
CPPC (Collaborative Power And Performance Control)
Auto/Enable -> System would have better performance but CPU frequency will not drop during idle (use windows 10 with update after MAY + Cinebench R15)
Disable -> CPU frequency will drop to save energy during idle
Location in BIOS
Auto/Enable - 2176cb
Disable (drop to 2.2G) - 2163cb
CPU frequency optimization
3800X - 4550Mhz
3900X - 4625MHz
MPG X570 GAMING EDGE WIFI 1.0.0.3 ABBA 7C37AMS.141
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http://www.coolaler.com.tw/toppc/X570/E7C37AMS141.7z]