Asus ROG MAXIMUS Z690 EXTREME [23/94] Dram timing control

ROG Z690 Series BIOS Manual

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.

Memory Presets

The items in this menu allow you to select different memory presets for different

memory modules.

Maximus Tweak

Configuration options: [Auto] [Mode1] [Mode2]

Primary Timings

DRAM CAS# Latency

Configuration options: [Auto] [2] - [126]

DRAM RAS# to CAS# Delay

Configuration options: [Auto] [0] - [255]

DRAM RAS# PRE Time

Configuration options: [Auto] [0] - [255]

DRAM RAS# ACT Time

Configuration options: [Auto] [1] - [511]