Asus RAMPAGE IV BLACK EDITION AC4 RAMPAGE IV BLACK EDITION User's Manual - Page 100

EPU Power Saving Mode [Disabled] Allows you to enable or disable the EPU power saving function. Configuration options: [Disabled] [Enabled] The following item only appears when you set EPU Power Saving Mode to [Enabled]. EPU Setting [Auto] Allows you to select the EPU power saving function. Configuration options: [Auto] [Light Power Saving] [Medium Power Saving] [Max Power Saving] DRAM Timing Control The subitems 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. Memory Presets This item allows you to select and load a memory preset or timing profile from a redefined list. The configurations of the memory presets are provided by the ROG OC expert team. Users can load the profiles before performing overclocking or DRAM tweaking. Rampage Tweak [Auto] This item allows you to choose the mode that is supported by Rampage Tweak when you want to fine tune the DRAM of the system. Mode 1 helps you with the DRAM performance, Mode 2 helps you in overclocking and system performance, and Mode 3 is suitable for Ivy Biridge-E. [Auto] Automatically selects the mode. [Mode 1] Memory compatibility. [Mode 2] Overclocking and performance. [Mode 3] Ivy Bridge-E compatability Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings. Primary Timings DRAM CAS# Latency [Auto] Configuration options: [Auto] [1] - [31] DRAM RAS# to CAS# Delay [Auto] Configuration options: [Auto] [1] - [31] DRAM RAS# PRE Time [Auto] Configuration options: [Auto] [1] - [15] DRAM RAS# ACT Time [Auto] Configuration options: [Auto] [1] - [63] DRAM Command Rate [Auto] Configuration options: [Auto] [1] - [3] Chapter 3 3-10 Chapter 3: BIOS setup