Biostar A57A2 Manual
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Biostar A57A2 Manual

Uefi bios
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A57A2 UEFI BIOS Manual
UEFI BIOS Setup ........................................................................... 1
1 Main Menu................................................................................... 3
2 Advanced Menu.......................................................................... 4
3 Chipset Menu............................................................................ 15
4 Boot Menu................................................................................. 19
5 Security Menu........................................................................... 22
6 Performance Menu ................................................................... 23
7 Exit Menu .................................................................................. 29
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  • Page 1 A57A2 UEFI BIOS Manual UEFI BIOS Setup ................1 1 Main Menu................... 3 2 Advanced Menu................4 3 Chipset Menu................15 4 Boot Menu................. 19 5 Security Menu................22 6 Performance Menu ..............23 7 Exit Menu .................. 29...

  • Page 2: Uefi Bios Setup

    A57A2 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.

  • Page 3: Supported Cpus

    A57A2 UEFI BIOS Manual Supported CPUs This AMI UEFI BIOS supports the latest 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...

  • Page 4: Bios Information

    A57A2 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 It shows system information including UEFI BIOS version, Project Code, Model Name, Build Date and etc.

  • Page 5: Advanced Menu

    A57A2 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 Beware of that setting inappropriate values in items of this menu may cause system to malfunction.
  • Page 6 A57A2 UEFI BIOS Manual PCI Latency Timer This item sets the value to be programmed into PCI Latency Timer Register. Options: 32 PCI Bus Clocks (Default) / 64 PCI Bus Clocks / 96 PCI Bus Clocks / 128 PCI Bus Clocks / 160 PCI Bus Clocks / 192 PCI Bus...
  • Page 7 A57A2 UEFI BIOS Manual ACPI Settings/ WakeUp Event control EuP Control When EuP is enabled, the system will meet EuP requirement. All wake up events do not work except Power Button after power down system (S5). Options: Disabled (Default) / Enabled...

  • Page 8: Cpu Configuration

    A57A2 UEFI BIOS Manual Ring-In Wake up from S5 This item enables the system to wake from S5 using Ring-In event. Options: Disabled (Default) / Enabled PS2 Keyboard PowerOn This item allows you to control the keyboard power on function.
  • Page 9 A57A2 UEFI BIOS Manual Power Now This item allows you to enable or disable the PowerNow power saving technology. Options: Enabled (Default) / Disabled NX Mode This item allows you to enable or disable No-execute page protection Function Options: Enabled (Default) / Disabled This item allows you to enable AMD virtualization in CPU.

  • Page 10: Sata Configuration

    A57A2 UEFI BIOS Manual SATA Configuration The BIOS will automatically detect the presence 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. OnChip SATA Channel...

  • Page 11: Usb Configuration

    A57A2 UEFI BIOS Manual USB Configuration Legacy USB Support The item allows you to enable Legacy USB support. AUTO option disables legacy support if no USB devices are connected. DISABLE option will keep USB devices available only for EFI applications.

  • Page 12: Super Io Configuration

    A57A2 UEFI BIOS Manual CPU Smart FAN This item allows you to control the CPU Smart Fan function. Options: Disabled (Default) / 4Pin CPU FAN Calibrate Press [ENTER] to calibrate CPU FAN. Control Mode This item provides several operation modes of the fan.
  • Page 13 A57A2 UEFI BIOS Manual 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 ON: Powering on the system immediately when power returns.
  • Page 14 A57A2 UEFI BIOS Manual Parallel Port Configuration Parallel Port This item enables or disables Parallel Port (LPT/LPTE). Options: Enabled (Default) / Disabled Change Settings This item allows you to select an optimal setting for Super IO device. Options: Auto (Default) / IO=378h; IRQ=5 / IO=378h; IRQ=5, 6, 7, 10, 11, 12 / IO=278h;...

  • Page 15: Network Stack

    A57A2 UEFI BIOS Manual Shutdown Temperature This item allows you to set up the CPU shutdown Temperature. Options: Disabled (Default) / 70℃/158℉ / 75℃/167℉ / 80℃/176℉ Network Stack Network Stack This item enables or disables UEFI network stack Options: Disabled (Default) / Enabled...

  • Page 16: Chipset Menu

    A57A2 UEFI BIOS Manual 3 Chipset Menu This section describes configuring the PCI bus system. PCI, or Personal Computer Interconnect, is a system which allows I/O devices to operate at speeds nearing the speed of the CPU itself uses when communicating with its own special components.
  • Page 17 A57A2 UEFI BIOS Manual SB USB Configuration OHCI HC (Bus 0 Dev 18/19/22 Fn 0) This item allows you to control OHCI host controller. (USB 1.1 Device) Options: Enabled (Default) / Disabled EHCI HC (Bus 0 Dev 18/19/22 Fn 2) This item allows you to control EHCI host controller.

  • Page 18: North Bridge

    A57A2 UEFI BIOS Manual SB Azalia Audio Configuration HD Audio Azalia Device This item allows you to control the HD audio device. Options: Enabled (Default) / Auto / Disabled North Bridge IOMMU It enables or disables IOMMU support. Options: Disabled (Default) / Enabled...

  • Page 19: Onboard Devices

    A57A2 UEFI BIOS Manual GFX Configuration PSPP Policy This item allows you to set PCIe speed power policy. Options: Balanced-High (Default) / Disabled / Performance / Balanced-Low / Power Saving Onboard Devices Realtek PCIE NIC This item enables/disables Realtek PCIE NIC...
  • Page 20 A57A2 UEFI BIOS Manual 4 Boot Menu This menu allows you to setup the system boot options. Setup Prompt Timeout This item sets number of seconds to wait for setup activation key. Options: 2 (Default) Bootup NumLock State This item selects the keyboard NumLock state.

  • Page 21: Bios Flash Protection

    A57A2 UEFI BIOS Manual Option ROM Messages This item sets the display mode for option ROM. Options: Force BIOS (Default) / Keep Current INT19 Trap Response BIOS reaction on INT19 trapping by Option ROM: IMMEDIATE – execute the trap right away; POSTPONED – execute the trap during legacy boot.

  • Page 22: Csm Parameters

    A57A2 UEFI BIOS Manual CSM parameters Launch CSM This option controls if CSM will be launched Options: Always (Default) / Never Boot option filter This option controls what devices system can boot to. Options: UEFI and Legacy (Default) / Legacy only / UEFI only...

  • Page 23: Security Menu

    A57A2 UEFI BIOS Manual 5 Security Menu Administrator Password This item sets Administrator Password. User Password This item sets User Password.

  • Page 24: Performance Menu

    A57A2 UEFI BIOS Manual 6 Performance Menu This submenu allows you to change voltage and clock of various devices. (However, we suggest you use the default setting. Changing the voltage and clock improperly may damage the device.) Notice Beware of that setting inappropriate values in items of this menu may cause system to malfunction.
  • Page 25 A57A2 UEFI BIOS Manual AMD Pstate Configuration Custom P-Stated This item will tell BIOS whether to use the step option below this configure the P-State, or whether to configure the P-States automatically. Options: Disabled (Default) / Enabled Note: The following items appear only when you set the Custom P-State item to...

  • Page 26: Dram Timing Configuration

    A57A2 UEFI BIOS Manual DRAM Timing Configuration DRAM Timing Mode This item selects DRAM Timing Mode. Options: Auto (Default) / DCT0 / DCT1 / Both Note: The following items appear only when you set the DRAM Timing Mode item to [DCT0 / DCT1 / Both]...
  • Page 27 A57A2 UEFI BIOS Manual TRRD Options: Auto (Default) / 1~9 CLK TRTP Options: Auto (Default) / 4~11 CLK MCT Configuration Bank Interleaving This item allows you to enable or disable Memory Bank interleaving. Options: Enabled (Default) / Disabled Channel Interleaving This item allows you to control the Memory Channel interleaving.
  • Page 28 A57A2 UEFI BIOS Manual DDR Memory Voltage This item allows you to select DDR Memory Voltage Control. PWM Core Load Line Control This item allows you to set PWM Core Load Line Control Options: 0% (Default) / Disabled / -40% / -20% / +20% / +40% / +60% /...

  • Page 29: Phase Control

    A57A2 UEFI BIOS Manual DDR3_A1/B1 These items display SPD information of DDR3 memory. G.P.U Phase Control G.P.U Phase Mode This item allows you to control G.P.U Phase Mode (power saving technology) It only works under ACPI OS with CnQ enabled.
  • Page 30 A57A2 UEFI BIOS Manual 7 Exit Menu This menu allows you to load the optimal default settings, and save or discard the changes to the BIOS items. Discard Changes and Exit Abandon all changes made during the current session and exit setup.

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