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B75MU3+ UEFI BIOS Manual

UEFI BIOS Setup...................................................................................... 1

1 Main Menu ............................................................................................. 3

2 Advanced Menu...................................................................................... 4

3 Chipset Menu ....................................................................................... 23

4 Boot Menu............................................................................................. 33

5 Security Menu ...................................................................................... 35

6 Performance ......................................................................................... 36

7 Exit Menu ............................................................................................. 41

B75MU3+ UEFI BIOS Manual

UEFI BIOS Setup

Introduction

The purpose of this manual is to describe the settings in the AMI UEFI BIOS Setup

program on this motherboard. The Setup program allows users to modify the basic

system configuration and save these settings to NVRAM.

UEFI BIOS determines what a computer can do without accessing programs from a

disk. This system controls most of the input and outp ut devices such as keybo ard,

mouse, serial ports and dis k drives. BIOS activates at the firs t stage o f the booting

process, loading and executing the operating system. Some additional features, s uch

as virus and pass word protection or chipset fine-tuning options are also included in

UEFI BIOS.

The rest of this manual will to guide you through the options and settings in UEFI

BIOS Setup.

Plug and Play Support

This AMI UEFI BIOS supports the Plug and Play Vers ion 1. 0A spec ific ation.

EPA Green PC Support

This AMI UEF I BIOS s upports Vers ion 1.03 of the EPA Green PC spec ification.

ACPI Support

AMI ACP I UEFI BIOS s upport Vers io n 1.0/2. 0 of Advanced Configuration and

Power interfac e sp ecification (ACPI). It provides ASL code for po wer management

and device configuration capabilities as defined in the ACPI specification, developed

by Microsoft, Intel and Toshiba.

PCI Bus Support

This AMI UEFI BIOS also s upports Vers ion 2.3 of the Intel PC I (P eripheral

Component Interconnect) local bus specification.

DRAM Support

DDR3 SDRAM (Double Data Rate III Synchronous DRAM) is supported.

B75MU3+ UEFI BIOS Manual

Supported CPUs

This AMI UEF I BIOS s uppo rts the Intel CPU.

Using Setup

When starting up the computer, press

<Del> during the Power-On Self-Test

(POST) to enter the UEFI BIOS setup

utility.

In the UEFI BIOS setup utility, you will

see General Help description at the top

right corner, and this is providing a brief

description of the selected item.

Navigation Keys for that particular menu

are at the bottom right corner, and you can

use thes e keys to select item and change

the settings.

Notice

zThe default UEFI BIOS settings apply for most conditions to ensure optimum

performance of the motherboard. If the s ystem beco mes unstable after changing

any settings, please load the default settings to ensure system’s compatibility and

stability. Use Load Setup Default under the Exit Menu.

zFor better system performance, the UEFI BIOS firmware is being continuously

updated. T he UEFI BIOS information d escribed in this manual is for your reference

only. The actual UEFI BIOS information and settings on board may be slightly

different from this manual.

zThe content of this manual is subject to be changed without notice. We will not be

responsible for any mistakes found in this user’s manual and any system damage that

may be c aused by wrong-s ettings.

B75MU3+ UEFI BIOS Manual

1 Main Menu

Once you enter AMI UEFI BIOS Setup Utility, the Main Menu will appear on the

screen providing an overview of the basic system information.

BIOS Information

Shows system information including UEFI BIOS version, model name, marketing

name, built date, etc.

Total Memor y

Shows system memory size, VGA s hard memory will be excluded.

System Date

Set the system date. Note that the ‘Day’ automatically changes when you set the

date.

System Time

Set the s ystem internal clock.

Access Level

Shows the access level of current user.

B75MU3+ UEFI BIOS Manual

2 Advanced Menu

The Advanced Menu allows you to configure the settings of CPU, Super I/O, Power

Management, and other system devices.

Notice

zBeware of that setting inappropriate values in items of this menu may cause

system to malfunction.

PCI Subs ystem Settings

B75MU3+ UEFI BIOS Manual

PCI ROM Priority

In case of multiple option ROMs (Legacy and EFI Compatible), this item specifies

what PCI Option ROM to launch

Optio ns: Legacy ROM (Default) / EFI Compatible ROM

Above 4G Decoding

Enables or disables 64bit capable device to be decoded in above 4G address space

(o nly if s ys tem support 64 bit P CI d ecoding).

Options: Disabled (Default) / Enabled

PCI Latency Timer

This item sets the value to be programmed into PCI Latency Timer Register.

Optio ns: 32 PCI Bus Cloc ks (Default) / 64 PCI Bus Clocks / 96 PCI Bus Cloc ks /

128 PCI Bus Clocks / 160 PCI Bus Clocks / 192 PCI Bus Clocks / 224

PCI Bus Clocks / 248 PCI Bus Cloc ks

VGA Palette Snoop

Enables or disables VGA palette registers snooping.

Options: Disabled (Default) / Enabled

PERR# Generation

Enables or disables PCI device to generate SERR#.

Options: Disabled (Default) / Enabled

SERR# Generation

Enables or disables PCI device to generate SERR#.

Options: Disabled (Default) / Enabled

B75MU3+ UEFI BIOS Manual

PCI Express Settings

Relaxed Ordering

Enables or disables PCI express device No snoop option.

Options: Disabled (Default) / Enabled

Extended Tag

If enabled allows d evice to use 8-bit tab field as a requester.

Options: Disabled (Default) / Enabled

No Sn oop

This item enables or disables PCI Express Device No Snoop option.

Options: Enabled (Default) / Disabled

Maximum Payload

This item sets Maximum Payload of PCI Express Device or allows System BIOS to

select the value.

Options: Auto (Default) / 128 Bytes / 256 Bytes / 512 Bytes / 1024 Bytes / 2048

Bytes / 4096 Bytes

Maximum Read Request

This item sets Maximum Read Request Size of PCI Express Device or allows

System BIOS to select the value.

Options: Auto (Default) / 128 Bytes / 256 Bytes / 512 Bytes / 1024 Bytes / 2048

Bytes / 4096 Bytes

B75MU3+ UEFI BIOS Manual

ASPM

This item sets the ASPM (Active State Power Management Settings) Level: Force

L0 – Force all links to LO State; Auto – BIOS auto configures; Disabled – Disables

ASPM.

Options: Disabled (Default) / Auto / Force L0s

Extend Synch

If enabled allows generation of extended synchronization patterns.

Options: Disabled (Default) / Enabled

Link Training Retry

Defines number of retry attempts software will take to retrain the link if previous

training attempt was unsuccessful.

Optio ns: 5 (Default) / Disabled / 2 / 3

Link Training Timeout(uS)

Defines number of microseconds software will wait before polling ‘Link Training’

bit in link status register. Value range from 10 to 1000 uS.

Options: 100 (Default)

Unpopulated Links

In order to save power, software will disable unpopulated PCI Express links, if this

option set to ‘ Disable Link’.

Options: Keep Link ON (Default) / Disable Link

ACPI Settings

B75MU3+ UEFI BIOS Manual

ACPI Sleep State

This item selects the highest ACPI s leep state the system will enter when the

SUSPEND button is pressed.

Options: S1 (CPU Stop Clock) (Default) / Suspend Disabled / S3 (Suspend to

RAM)

Restore AC Power Loss

This setting specifies how your system should behave after a power fail or interrupts

occurs. Power Off: Leaving the system in power-off status after power recovers.

Power O N: Po wering o n t he s ys tem immed iately when po wer returns. Last S tate: 1.

Leaving the system in power-off if the system shuts down at DC off status; 2.

Powering on the system immediately if the system shuts down at DC on status.

Options: Power Off (Default) / Power On / Last State

PME Wake up from S5

This item enables the system to wake from S5 using PEM event.

Options: Disabled (Default) / Enabled

Wake system with Fixed Time

This item enables or disables the system to wake on by alarm event. When this item

is enabled, the system will wake on the hr::min::sec specified.

Options: Disabled (Default) / Enabled

Wake up date

You can choose which date the system will boot up.

Wake up hour / Wake up minute / Wake up second

You can choos e the system boot up time, input ho ur, minute and second to specify.

Ring-In Wake up from S5

This item enables the system to wake from S5 using Ring-In event.

Options: Disabled (Default) / Enabled

B75MU3+ UEFI BIOS Manual

PS2 Keyboard PowerOn

This item allows you to control the keyboard power on function.

Options: Disabled (Default) / Any Key / Stroke Key / Specific Key

Stroke Keys Selected

This item will show only when Keyboard PowerOn is set “Stroke Key.”

Optio ns: Wake Key (Default) / Power Key / Ctrl+F1 / Ctrl+F2 / Ctrl+F 3 /

Ctrl +F4 / Ctrl+F5 / Ctrl+F6

Specific Key Enter

This item will show only when Keyboard PowerOn is set “Specific Key.” Press

Enter to set Specific key.

PS2 Mouse PowerOn

This item allows you to control the mouse power on function.

Options: Disabled (Default) / Enabled

USB Device Wakeup from S3/S4

This item allo ws you to enab le or d isabled the USB res ume from S3/S4 function.

Options: Disabled (Default) / Enabled

CPU Configuration

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