Asus ROG MAXIMUS Z790 FORMULA ROG Z790 Series BIOS Manual English - Page 28

DRAM Timing Control, AVX2 Ratio Offset to per-core Ratio Limit

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AVX2 Ratio Offset to per-core Ratio Limit Configuration options: [Auto] [User Specify] The following item appears only when AVX2 Ratio Offset to per-core Ratio Limit is set to [User Specify]. AVX2 Ratio Offset Specifies number of bins to decrease AVX ratio vs. Per-Core Ratio. AVX is a more stressful workload, it is helpful to lower the AVX ratio to ensure maximum possible ratio for SSE workloads. Uses Mailbox MSR 0x150, cmd 0x1B. Range 0-31. 0=No offset. Use the or to adjust the value. Configuration options: [0] - [31] AVX2 Voltage Guardband Scale Factor Configuration options: [Auto] [User Specify] The following item appears only when AVX2 Voltage Guardband Scale Factor is set to [User Specify]. AVX2 Voltage Guardband Scale Factor Controls the voltage guardband applied to AVX workloads. Range in 1/100 units, where 125=1.25 scale factor. The resulting final voltage guardband is default guardband * Scale Factor. Therefore lower than 100 values reduce guardband while higher than 100 values increase guardband. Use the or to adjust the value. Configuration options: [0] - [199] DRAM Timing Control The sub-items in this menu allow you to set the DRAM timing control features. Use the and keys to adjust the value. To restore the default setting, type [Auto] using the keyboard and press the key. You can also select various Memory Presets to load settings suitably tuned for some memory modules. Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings. Maximus Tweak Configuration options: [Auto] [Mode 1] [Mode 2] Primary Timings DRAM CAS# Latency Only Even numbers are supported on DDR5. Odd numbers will be rounded up. Configuration options: [Auto] [2] - [66] DRAM RAS# to CAS# Delay Read Configuration options: [Auto] [0] - [255] DRAM RAS# to CAS# Delay Write Configuration options: [Auto] [0] - [255] DRAM RAS# PRE Time Configuration options: [Auto] [0] - [255] DRAM RAS# ACT Time Configuration options: [Auto] [1] - [511] 28 ROG Z790 Series (Intel® 14th) BIOS Manual

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28
ROG Z790 Series (Intel
®
14
th
) BIOS Manual
AVX2 Ratio Offset to per-core Ratio Limit
Configuration options: [Auto] [User Specify]
The following item appears only when
AVX2 Ratio Offset to per-core Ratio Limit
is set
to
[User Specify]
.
AVX2 Ratio Offset
Specifies number of bins to decrease AVX ratio vs. Per-Core Ratio. AVX is a more
stressful workload, it is helpful to lower the AVX ratio to ensure maximum possible
ratio for SSE workloads. Uses Mailbox MSR 0x150, cmd 0x1B. Range 0-31. 0=No
offset. Use the <+> or <-> to adjust the value.
Configuration options: [0] - [31]
AVX2 Voltage Guardband Scale Factor
Configuration options: [Auto] [User Specify]
The following item appears only when
AVX2 Voltage Guardband Scale Factor
is set to
[User Specify]
.
AVX2 Voltage Guardband Scale Factor
Controls the voltage guardband applied to AVX workloads. Range in 1/100 units,
where 125=1.25 scale factor. The resulting final voltage guardband is default
guardband * Scale Factor. Therefore lower than 100 values reduce guardband while
higher than 100 values increase guardband. Use the <+> or <-> to adjust the value.
Configuration options: [0] - [199]
DRAM Timing Control
The sub-items in this menu allow you to set the DRAM timing control features. Use the
<+> and <-> keys to adjust the value. To restore the default setting, type
[Auto]
using the
keyboard and press the <Enter> key. You can also select various
Memory Presets
to load
settings suitably tuned for some memory modules.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.
Maximus Tweak
Configuration options: [Auto] [Mode 1] [Mode 2]
Primary Timings
DRAM CAS# Latency
Only Even numbers are supported on DDR5. Odd numbers will be rounded up.
Configuration options: [Auto] [2] - [66]
DRAM RAS# to CAS# Delay Read
Configuration options: [Auto] [0] - [255]
DRAM RAS# to CAS# Delay Write
Configuration options: [Auto] [0] - [255]
DRAM RAS# PRE Time
Configuration options: [Auto] [0] - [255]
DRAM RAS# ACT Time
Configuration options: [Auto] [1] - [511]