Asus P9X79 User Manual download pdf (Page 100)

3-24 Chapter 3: BIOS setup

Chapter 3

DRAM Voltage (CHA, CHB) [Auto]

Allows you to set the DRAM voltage. The values range from 1.20V to 1.99V with a 0.005V

interval.

DRAM Voltage (CHC, CHD) [Auto]

Allows you to set the DRAM voltage. The values range from 1.20V to 1.99V with a 0.005V

interval.

According to Intel CPU spec, DIMMs with voltage requirement over 1.65V may damage

the CPU permanently. We recommend you install the DIMMs with the voltage requirement

below 1.65V.

CPU PLL Voltage [Auto]

Allows you to set the CPU and PCH PLL voltage. The values range from 1.80V to 2.10V with

a 0.00625V interval.

VTTCPU Voltage [Auto]

Allows you to set the VTTCPU voltage. The values range from 1.05V to 1.70V with a

0.00625V interval.

PCH 1.1v Voltage [Auto]

Allows you to set the 1.1v Platform Controller Hub voltage. The values range from 1.10V to

1.70V with a 0.00625V interval.

PCH 1.5v Voltage [Auto]

Allows you to set the 1.5v Platform Controller Hub voltage. The values range from 1.50V to

1.80V with a 0.00625V interval.

• The values of the CPU VCORE/VCCSA Manual Voltage, CPU VCORE/VCCSA

Offset Voltage, DRAM Voltage, CPU PLL Voltage, VTTCPU Voltage and PCH

1.1V/1.5V Voltage items are labeled in different color, indicating the risk levels of high

voltage settings. Refer to the table below for details.

• The system may need better cooling system to work stably under high voltage settings.

VTTDDR Voltage (CHA, CHB) [Auto]

Allows you to set the CHA, CHB VTTDDR voltage. The values range from 0.6250V to 1.10V

with a 0.00625V interval.

VTTDDR Voltage (CHC, CHD) [Auto]

Allows you to set the CHC, CHD VTTDDR voltage. The values range from 0.6250V to 1.10V

with a 0.00625V interval.

DRAM CTRL REF Voltage on CHA [Auto]

Allows you to set the DRAM CTRL REF Voltage on CHA. The values range from 0.3950x to

0.6300x with a 0.005x interval.

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Asus P9X79 User Manual Page 100