Biostar B75MU3 User manual

B75MU3+ UEFI BIOS Manual
i
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
1
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
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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