User’s Manual
Table Of Contents
- 1.1 Knowing BIOS
- 1.2 BIOS setup program
- 1.3 My Favorites
- 1.4 Main menu
- 1.5 Ai Tweaker menu
- 1.6 Advanced menu
- 1.6.1 AMD fTPM configuration
- 1.6.2 CPU Configuration
- 1.6.3 SATA Configuration
- 1.6.4 Onboard Devices Configuration
- 1.6.5 APM Configuration
- 1.6.6 PCI Subsystem Settings
- 1.6.7 USB Configuration
- 1.6.8 Network Stack Configuration
- 1.6.9 HDD/SSD SMART Information
- 1.6.10 NVMe Configuration
- 1.6.11 AMD PBS
- 1.6.12 AMD Overclocking
- 1.6.13 AMD CBS
- 1.7 Monitor menu
- 1.8 Boot menu
- 1.9 Tool menu
- 1.10 Exit menu
- 1.11 Updating BIOS
ROG STRIX B550-E GAMING BIOS Manual
17
Memory Frequency
This item allows you to set the memory operating frequency. The congurable options vary
with the BCLK (base clock) frequency setting. Select the auto mode to apply the optimized
setting. Conguration options: [Auto] [DDR4-1333MHz] – [DDR4-6000MHz]
Selecting a very high memory frequency may cause the system to become unstable! If this
happens, revert to the default setting.
FCLK Frequency
This item allows you to specify the FCLK frequency.
Conguration options: [Auto] [666MHz] [800MHz] – [3000MHz]
CPU Core Ratio
This item allows you to set the CPU core ratio. Use the <+> or <-> keys to adjust the value.
The values depend on the CPU installed.
CPU Core Ratio (Per CCX)
Core VID
This item allows you to set a custom CPU core VID. Use the <+> or <-> to adjust the
value. The values range from 0.700 to 1.550.
CCX0/1 Ratio
This item allows you to set a custom Core Ratio for this CCX. Use the <+> or <-> to
adjust the value. The values range from 28.00 to 63.75.
TPU
The TPU automatically overclocks the CPU frequency and voltage to enhance the system
performance. It also boosts the CPU graphics performance according to the CPU graphics
loading. Conguration options: [Keep Current Settings] [OC Tuner]
To keep the current overclocking tuner status, select [Keep Current Settings].
Performance Bias
This item allows you to select different values to help different Software’s performance.
Conguration options: [Auto] [None] [CBR15 Gentle] [Aida/Geekbench] [CBR15 Aggressive]
Precision Boost Overdrive
This item allows the processor to run beyond the dened values for PPT, VDD_CPU EDC,
VDD_CPU TDC, VDD_SOC EDC, VDD_SOC TDC set as the boards limits, and allows it to
boost at higher voltages for a longer duration.
PBO Fmax Enhancer
When enabled, the peak frequencies (Fmax) will be potentially improved during single
threaded workloads. Conguration options: [Auto] [Disabled] [Enabled]
Precision Boost Overdrive
This item allows you to set the precise boost overdrive.
Conguration options: [Auto] [Disabled] [Enabled] [Manual]