Biostar A75MH, A55MH Bios Setup Manual

A75MH / A55MH UEFI BIOS Manual

i

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

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

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

3 Chipset Menu ....................................................................................... 17

4 Boot Menu............................................................................................. 25

5 Security Menu ...................................................................................... 27

6 Performance Menu .............................................................................. 28

7 Exit Menu ............................................................................................. 36

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UEFI BIOS Setup

Introduction

The purpose of this manual is to describe the settings in the AMI UEFI BIOS Setup
program on this motherboard. T he S etup 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 sys t em co ntrols most of the input and outp ut d evices s uch as keybo ard,
mouse, s erial por ts and dis k drives. BIOS act iva tes at the f irs t st age o f the boot ing
process, lo ading and ex ecuting t he op er ating system. Some add itional feat ures, s uch
as vir us and pass word protect io n or chips et f ine -t uning op tions are also includ ed in
UEFI BIOS.
The rest of this manual will to guide yo u through the options and settings in UEFI
BIOS Setup.

Plug and Pla y Support

This AMI UEF I BIOS suppo rts the Plug a nd Play Vers ion 1. 0A spec ific at ion.

EPA Green PC Support

This AMI UEF I BIOS suppo rts Vers ion 1. 03 of the EPA Green PC spec ification.

ACPI Support

AMI ACPI UEFI BIOS supp o rt Vers ion 1.0/2.0 o f Ad v anced Configur at io n and
Power interface specificatio n (ACPI). It provides ASL code for power
management and device configuratio n capabilities as defined in the ACPI
spec ification, developed by Microsoft, Intel and Toshiba.

PCI Bus Support

This AMI UEFI BIOS a lso s uppo rts Vers ion 2.3 of the Intel PCI (P eriphe ral
Component Interconnect) local b us specification.

DRAM Support

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

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Supported CPUs

This AMI UEFI BIOS supports AMD CPU.

Using Setup

Whe n starting up the c o mput er, press

<Del> during the Power-On Self-Test
(POST) to enter t he 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
descriptio n of the selected item.
Navigation Ke ys for that particular menu
are at the bottom right corner, and you can
use these keys to select item and c h ange
the settings.

Notice

z The default UEFI BIOS settings apply for most conditions to ensure optimum

performance of the motherboard. If the system beco mes unstable after c hanging
any settings, p leas e load t he default settings to ensure system’s comp atibility and
stability. Us e Load Setup Default under the Exit Menu.

z For better system performance, the UEFI BIOS firmware is being continuously

updated. T he UEF I BIO S in for mation describ ed in this manual is for your referenc e
only. The actual UEFI BIOS information and settings on board may be slightly
different from this manual.

z The content of this manual is subject to be changed wit hout notice. We will not be

resp onsible for any mist akes found in this user’s manual and any system dama ge that
may b e c aused by wrong-sett ings.

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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 s ystem info rmation including UEFI BIOS version, Project Code, Model
Name, Build Date, etc.

Total Memor y

Shows system memory size, VGA s hard memo ry will b e excluded.

System Date

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

System Time

Set t he syst em int ernal c loc k.

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2 Advanced Menu

The Advanced Menu allows you to configure the settings of CPU, Super I/O, Power
Management, and other system devices.

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to malfunct ion.

PCI Subs yste m Settings

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PCI ROM Priority

In case of multiple option ROMs (Legacy and EFI Compatible), this item specifies
what PCI Op t ion ROM to la unc h
Optio ns: Legacy ROM (Default) / EFI Compatible ROM

PCI Latency Timer

This item sets the value to b e programmed into PC I Latency Timer Register.
Optio ns : 32 PCI Bus Cloc ks (Default) / 64 PCI Bus Cloc ks / 96 PCI Bus Clocks /

128 PCI Bus Clocks / 160 PCI Bus Clocks / 192 PCI Bus Clocks / 224
PCI Bus Clocks / 248 PCI Bus Cloc ks

VGA Palette Snoop

This item enables or disables VGA Palette Registers Snooping.
Optio ns: Disabled (Default) / Enabled

PCI Express Settings

No Sn oop

This item enables or disables PCI Express Device No Snoop option.
Optio ns: Enabled (Default) / Disab led

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Maximum Payload

This item sets Maximum P ayload of PCI Express Device or allows System BIOS to
select the value.
Optio ns: Auto (Default) / 128 Bytes / 256 Bytes / 512 Bytes / 1024 Bytes / 2048

Bytes / 4096 Bytes

Maximum Read Request

This item sets Maximum Read Request Size o f PCI Express Device or allows
System BIOS to select the value.
Optio ns: Auto (Default) / 128 Bytes / 256 Bytes / 512 Bytes / 1024 Bytes / 2048

Bytes / 4096 Bytes

ASPM Support

This item sets the ASPM Level: Force LO – Force all links to LO State; Auto –
BIOS auto co nfigures; Dis ab led – Dis ables ASPM.
Optio ns: Disabled (Default) / Auto / Force L0s

ACPI Settings/WakeUp Event control

ACPI Sleep State

This item selects the highest ACPI s leep state the syst em will enter when the
SUSPEND button is pressed.
Options: S3 (Suspend to RAM) (Default) / Suspend Disabled

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S3 Video Repost

This item allows you to enable o r disable S3 Video Repost.
Optio ns: Disabled (Default) / Enabled

EuP Con trol

When EuP is enabled, the system will meet EuP requirement.
Optio ns: Disabled (Default) / Enabled

PME Wake up from S5

The it em e nables the syste m to wake from S5 using PME e vent.
Optio ns: 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.
Optio ns: 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 c an c hoos e the system boot up time, inpu t ho ur, minute and seco nd to s p ec if y.

Ring-In Wake up from S5

This item enables the system to wake from S 5 us ing Ring-In event.
Optio ns: Disabled (Default) / Enabled

PS2 Keyboard PowerOn

This item allows you to control the keybo ard power on funct ion.
Optio ns: Dis abled (Default) / Any Key / Stro ke Key / Specific Key

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Stroke Keys Selected

This item will s how only when Keyboard PowerOn is set “Stroke Key.”
Optio ns: Wake Key (Defa ult) / Power Key / Ctrl+F1 / Ctr l+F2 / Ctrl+F 3 /

Ctrl +F4 / Ctrl+F5 / Ctrl+F6

Specific Key Enter

This item will show only when Keyboard PowerOn is set “Spec ific Key. ” Press
Enter to set Specific key.

PS2 Mouse PowerOn

This item allows you to control the mouse power on function.
Optio ns: Disabled (Default) / Enabled

USB Device Wakeup from S3/S4

This item allo ws yo u to enab le or dis abled the USB res ume from S3/S4 funct io n.
Optio ns: Disabled (Default) / Enabled

CPU Configuration

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Li mi t CP UI D Max im um

When the comp uter is booted up, the operating system executes the CPUID
instruction to identify the processor and its capab ilities. Before it can do so, it must
first query the processor to find out the highest input value CPUID recognizes. This
determines the kind of basic information CPUID can provide the operating s ystem.
Optio ns: Disabled (Default) / Enabled

C6 Mode

This item allows you to enable o r disable C6.
Optio ns: Enabled (Default) / Disabled

CPB Mode

This item allows you to enable o r disable CPB.
Optio ns: Auto (Default) / Disabled

AMD Power Now function

This item allows you to enable o r disable the PowerNow power saving tec hnology.
Optio ns: Enabled (Default) / Disabled

SVM

This item allows you to enable AMD virtualization in CPU. This secure virtual mode
will let your run multiple OS (guest) on the same physical hardware by decoup ling
OS and physical hardware with the hypervisor layer.
Optio ns: Enabled (Default) / Disabled

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CPU Information

This it em s ho ws CPU Info rmation

SATA Configuration

The BIOS will automat ically d etect the p resenc e of SATA devices. There is a
sub-menu for each SATA device. Select a device and press <Enter> to enter the
sub-menu for detailed options.

.

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SMART FAN Control

CPU Smart FAN

This item allows you to control the CPU Smart F an funct ion.
Optio ns: Disabled (Default) / Auto / 4Pin / 3Pin

CPU FAN Calibrate

Press [ENTER] to calibrate CPU FAN.

Control Mode

This item provides several operation modes of the fan.
Optio ns: Quiet / Aggress ive / Manual

Fan Ctrl OFF(℃)

When CP U temperature is lower than this value, the C P U fan will keep lowest RPM.
Optio ns : 10 (℃) (default)

Fan Ctrl On(℃)

When CPU temperature is higher than this value, the CPU fan controller will turn on.
Optio ns : 20 (℃) (Default)

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Fan Ctrl Start Value

This item sets CP U FAN Start Sp eed Value.
Options: 50 (Default)

Fan Ctrl Sensitive

The bigger the numeral is, the higher the FAN speed is.
Options: 30 (Default)

USB Configuration

Legacy USB Support

This item determines if the BIOS should provide legacy s upport for USB devices
like the keyboard, mouse, and USB drive. This is a useful feature when using such
USB devices with operating systems that do not natively support USB (e.g.
Microsoft DOS o r Windows NT).
Optio ns: Enabled (Default) / Disab led / Auto

USB3.0 Support (Only for A75MH)

The item allows you to enable or disable USB3.0 (XHCI) Contro ller support.
Optio ns: Enabled (Default) / Disabled

XHCI Hand-Off (Only for A75MH)

This is a workaround for OSes without XHCI hand-off support. The XHCI
ownership change sho uld be claimed by XHCI driver.
Optio ns: Disabled (Default) / Enabled

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EHCI Hand-Off

This is a workaround for OSes without EHCI hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Optio ns: Disabled (Default) / Enabled

USB FLASH DRIVE PMAP

This items shows when user inserts USB drive.
Optio ns: Auto (Default) / Flopp y / Forc ed F DD / Hard Disk / CD-R OM

Super IO Configuration

Restore AC Power Loss

This setting specifies how your s ystem should behave after a power fail or interrupts
occurs. Power Off: Leaving the system in power-off status after power recovers.
Po we r ON: Po wer ing o n th e system immed iately wh e n po we r r et urns. Last S tat e : 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.
Optio ns: Power Off (Default) / Power On / Last State

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Serial Port 1 Configuration

Serial Port

This item enab les or dis ables S erial Port (CO M).
Optio ns: Enabled (Default) / Disabled

Change Settings

This item selec ts an opt imal sett ing fo r S uper IO device.
Optio ns: Auto (Default)

Parallel Port Con figuration

Parallel Port

This item enables or disables Parallel Port (LPT/LPTE).
Optio ns: Enabled (Default) / Disabled

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Change Settings

This item allows you to select an optimal setting for Super IO device.
Optio ns : Auto (Defau lt) / IO= 378h; IRQ=5 / IO= 378h; IR Q= 5, 6, 7, 9, 10, 11, 12 /

IO=278h; IRQ=5, 6, 7, 9, 10, 11, 12 / IO=3BCh; IRQ=5, 6, 7, 9, 10, 11,
12

Device Mode

This item allows you to determine how the p arallel port should function.
Options: Standard Parallel Port Mode (Default) (Using Parallel port as Standard

Printer Port) /
EPP Mode (Using Parallel Port as Enhanced Parallel Port) /
ECP Mode (Using P arallel port as Extended Capabilities Port) /
ECP Mode & EPP Mode (Us ing Paralle l port as ECP & EPP mode)

CIR Controller Configuration

CIR Controller

This item enables or disables CIR Controller.
Optio ns: Disabled (Default) / Enabled

Change Settings

This item selec ts an opt imal sett ing fo r S uper IO device.
Optio ns: Auto (Default)

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H/W Monitor

Shutdow n Temperature

This item allows you to set up the CPU s hutdo wn Temp erat ure.
Optio ns: Dis abled (Default) / 70 /158 / 75 /167 / 80 /176 / 85 /185 ℃℉℃℉℃℉℃℉

/ 90 / 1 94℃℉

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3 Chipset Menu

This sec tion describes configuring the PCI bus system. PCI, or Personal Computer
Inte rconnect, is a syst em which allows I/ O devices to ope rate at sp eeds near ing the
speed of the CPU itself uses when communicating with its own special components.

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to malfunctio n.

Onboard PCI-E Devices

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Launch PXE OpROM

This item enables/disables Boot Option for Legacy Network Devices.
Optio ns: Disabled (Default) / Enabled

Launch Storage OpROM

This item enables/disables Boot Optio n for Legacy Mass Storage Devices with
Option ROM.
Optio ns: Enabled (Default) / Disabled

Realtek PCIE NIC

This item enables/d isab les Realtek PCIE NIC.
Optio ns: Enabled (Default) / Disabled

North Bridge

Primary Video Device

This item allows you to s elect Primary Video Device that BIOS will use to for
output.
Options: IGD Video (Default) / NB PCIe slot Video

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GFX Configuation

PSPP Policy

This item allows you to set PCIe speed po wer polic y.
Optio ns: Balanced-High (Default) / Disabled / P erformance / Balanced -Low /

Power Saving

GFX HD Audio contr oller

This item allows you to enable o r disable GFX HD Audio co ntro ller.
Optio ns: Enabled (Default) / Disabled

Integrate d Graph ics

This item set integrated graphics controller.
Optio ns: Auto (Default) / Disabled / Force

UMA Frame buffer Size

Options: 384M (Default) / 32M / 64M / 128M / 256M / 512M / 1G / 2G

Memory Hole Remapping

This item allo ws you to enable or disable the remapping of the overlapp ed PCI
memory above the total physical memory. Only 64-bit OS supports this function.
Optio ns: Enabled (Default) / Disabled

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Bank In terleaving

Bank Interleaving is an advanced chipse t techniq ue us ed to impro ve memory
performance. Memory interleaving inc reases bandwidth by allowing simultaneo us
access to more than one piec e of memory.
Optio ns: Enabled (Default) / Disabled

Channel Interleavin g

This item allows you to control the DDR3 dual-channel function.
Optio ns: Enabled (Default) / Disabled

South Bridge Configuration

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SB SAT A Configuration

S

OnChip SATA Channel

This optio n allows you to enable the on-chip Serial ATA.
Optio ns: Enabled (Default) / Disabled

OnChip SATA Type

This optio n allows you to s elect the on-chip S erial ATA operatio n mode.
Optio ns: Native IDE (Def ault) / RAID / AHCI / Legacy IDE

SATA IDE Combined Mode

This optio n co ntro ls the SATA/PATA combined mode.
Optio ns: Enabled (Default) / Disabled

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SB USB Con figuration

XHCI Switch ( Onl y for A75 MH)

This item allows you to switch XHCI
Optio ns: Enabled (Default) / Disabled

OHCI HC (Bus 0 Dev 18/19/20 Fn 0/5)

This item allows you to control OHCI host co ntro ller. (USB 1.1 Device)
Optio ns: Enabled (Default) / Disabled

EHCI HC (Bus 0 Dev 18/19 Fn 2)

This item allows you to control EHCI host contro ller. (USB 2.0 Device)
Optio ns: Enabled (Default) / Disabled

USB PORT 0 ~ 5

Optio ns: Enabled (Default) / Disabled

XHCI0 PORT 0/1 (Only for A75MH)

Optio ns: Enabled (Default) / Disabled

XHCI1 PORT 0/1 (Only for A75MH)

Optio ns: Enabled (Default) / Disabled

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SB GPP Port Configuration

GPP Link ASPM

Optio ns: Disabled (Default) / L0s / L1 / L0s +L1

GPP Gen2/ UMI Gen2

Optio ns: Enabled (Default) / Disabled

GPP HW Compliance Mode

Optio ns: Disabled (Default) / Port A / Port B / Port C / Po rt D

SB GPP LANE REVERSAL

Optio ns: Disabled (Default) / Enabled

SB Azalia Audio Configuration

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HD Audi o Azalia Device

This item allows you to control the HD audio device.
Optio ns: Enabled (Default) / Auto / Disabled

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4 Boot Menu

This menu allows you to setup the sys tem boo t opt io ns.

Setup Prompt Timeout

This item sets numb er of seconds to wait for setup activatio n key.
Options: 2 (Default)

Bootup NumLock State

This it em selec ts the keybo ard NumLock stat e.
Options: On (Default) / Off

Full Screen LOGO Display

This item allows you to enable/disable F ull Screen LOGO S how function.
Optio ns: Enabled (Default) / Disabled

BOOT SUCCESS BEEP

When this item is set to Enabled, BIOS will let user know boot success with beep.
Optio ns: Enabled (Default) / Disabled

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GateA20 Active

Upon Request – FA20 can be disabled using BIOS services. Always – do not allow
disabling GA20; this option is useful when any RT code is executed above 1MB
Optio ns: Upon Request (Default) / Always

Option ROM Messages

This item sets the d isplay mode for op tion ROM.
Options: Force BIOS (Default) / Keep Current

Interrupt 19 Capture

Interrupt 19 is the software interrupt that handles the boot disk function. When set
to Enabled, this item allows t he option ROMs to trap interrupt 19.
Optio ns: Disabled (Default) / Enabled

BIOS Flash protection

While enabled, it can’t flash write and flas h erase by S MI.
Optio ns: Enabled (Default) / Disabled

Boot O ption #1/#2/#3

The items specify the boo t de vice prio rity seq uence fro m the available d evices.
The number of device items that appears on the screen depends on the number of
devices installed in the system.

CD/DVD ROM Drive BBS Priorities

This item s ets the order of the legacy devices in this group.

Hard Drive BBS Priorities

This item s ets the order of the legacy devices in this group.

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5 Security Menu

Admin i strator Password

This item sets Administrator Pass word.

User Password

This item sets User Password.

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6 Performance Menu

This submenu allo ws yo u to change volt a ge and clock o f var ious dev ices .
(However, we suggest you us e the default setting. Changing the voltage and c lock
improperly may damage the device.)

Notice

z Beware of that setting inappropriate values in items of this menu may cause

system to malfunct ion.

IGD Clock Control

This item allows user to adjust IG D clock.
Optio ns: Auto (Default) / Enab led

IGD Clock

This item allo ws BIOS to select IGD clock. Range: 300MHz-1200MHz

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P-States Configuration

Custom P-States

This item tells BIOS whether to us e the setup option below t his to co nfigure the
P-States, or whether to configure the P-States automat ic ally.
Optio ns: Disabled (Default) / Enabled

Core FID

This item se ts the frequ enc y to use for Core P-S tate selected. Value is s aved in t he
_PSS ob ject.
Optio ns: x8.0 1600MHz ~ x31.5 6300MHz

Core VID

This func t ion allows yo u to ad jus t th e vo ltage of Co re.

Core DID

This is the Core Divider.
Options: Divided by 1 (Default) / Divided by 1.5 / Divided b y 2 / Divided by 3 /

Divided by 4 / Divided 6 / Divided by 8 / Divided 12 / Divided by 16

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Over-Voltage Configuration

APU-Core Over Voltage

This item allows you to select APU-Core Voltage Control.

APU-NB Over Voltage

This item allows you to select APU-NB Voltage Contro l.

DDR Memory Over Voltage

This item allows you to select DDR Memo ry Voltage Control.

APU DDR-PHY/PCI-E Over Voltage

This item allows you to select APU DDR-PHY/PCI-E Voltage Control.

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DRAM Timing Configuration

MCT Timing Mode

This item allo ws yo u to select the DRAM Frequency programming met hod. If Auto,
the DRAM speed will be based on SPDs. If Limit, the DRAM speed will not exceed
the spec ified value. If Manual, the DRAM speed specified will be programmed
regardless of SPD.
Optio ns: Auto (Default) / Limit / Manual

Memclock Value

This item allows you to set the Memory Clock.
Options: DDR-800 (Default) / DDR-1066 / DDR-1333 / DDR-1600 / DDR-1866

DRAM Timing Mode

This item allo ws you to choose to manually or automatically regulate the DRAM
Timing.
Optio ns: Auto (Default) / DCT0 / DCT1 / Both

CL

Optio ns: Auto (Default) / 4~12 CLK

2TCMD

Optio ns: Auto (Default) / 1T / 2T

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TRCD

Optio ns: Auto (Default) / 5~12 CLK

TRP

Optio ns: Auto (Default) / 5~12 CLK

TRTP

Optio ns: Auto (Default) / 4~7 CLK

TRAS

Optio ns: Auto (Default) / 15~30 CLK

TRC

Optio ns: Auto (Default) / 11~42 CLK

TWR

Optio ns: Auto (Default) / 5~8 / 10 / 12 CLK

TRRD

Optio ns: Auto (Default) / 4~7 CLK

TRWTTO

Optio ns: Auto (Default) / 4~7 CLK

TWRRD

Optio ns: Auto (Default) / 4~7 CLK

TWTR

Optio ns: Auto (Default) / 4~7 CLK

TWRWR

Optio ns: Auto (Default) / 4~7 CLK

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TRDRD

Optio ns: Auto (Default) / 4~7 CLK

TRFC0 / TRFC1

Options: Auto (Default) / 90ns / 110ns / 160ns / 300ns / 350ns

MCT Configuration

Bank In terleaving

Bank Interleaving is an advanced chipse t techniq ue us ed to impro ve memory
performance. Memory interleaving inc reases bandwidth by allowing simultaneo us
access to more than one piec e of memory.
Optio ns: Auto (Default) / Disabled

Channel Interleavin g

This item allows you to control the DDR2 dual-channel function.
Optio ns: Auto (Default) / Disabled

Clock to All DIMMs

This item enables unused clocks to DIMMs even memory slots are not populated.
Optio ns: Disable Link (Default) / Enab led

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MemClk Tristate C3/ATLVID

This item enables or disables the MemClk Tristate funct ion in C3 Mode.
Optio ns: Disable Link (Default) / Enab led

Memory Hole Remapping

This item allo ws you to enable or disable the remapping of the overlapp ed PCI
memory above the total physical memory. Only 64-bit OS supports this function.
Optio ns: Enabled (Default) / Disable Link

Unganged Mode support

This item controls the DRAM controller ganged (128bit*1) / unganged (64bit*2)
dual-channel operation mode. If two DRAM modules with different size are
installed, using unganged mode can still make it run in dual-channel operation.
Optio ns: Enabled (Default) / Disable Link

Power Down Enable

This item controls the DRAM power down funct ion.
Optio ns: Disable Link (Default) / Enab led

BIOSTAR Memory Insight

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DDR3_A1/B1

These items display SPD information of DDR3 memory.

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7 Exit Menu

This menu allows you to load the optimal d efault settings, and save or disc ard the
changes to the BIOS items.

Save Changes and Reset

Reset the system after saving the changes.

Discard Changes and Exit

Abandon all changes made during the current session and exit setup.

Restore D efaults

This s election allo ws you to reload t he BIOS when p roblem occ urs during sys tem
booting sequence. These configurations are factory settings optimized for this
system.

Launch Shell from device

This item attempts to EFI Shell application (Shellx64. efi) from one of the available
devices.