Biostar H77MU3 Manual 

i UEFI BIOS Setup...................................................................................... 1 1 Main Menu ............................................................................................. 3 2 Advanced Menu...................................................................................... 4 3 Chipset Menu ....................................................................................... 22 4 Boot Menu............................................................................................. 32 5 Security Menu ...................................................................................... 34 6 Performance ......................................................................................... 35 7 Exit Menu ............................................................................................. 40

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 output devices such as keyboard, mouse, serial ports and disk drives. BIOS activates at the first stage of the booting process, loading and executing the operating system. Some additional features, such as virus and password 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 Version 1.0A specification. EPA Green PC Support This AMI UEFI BIOS supports Version 1.03 of the EPA Green PC specification. ACPI Support AMI ACPI UEFI BIOS support Version 1.0/2.0 of Advanced Configuration and Power interface specification (ACPI). It provides ASL code for power 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 supports Version 2.3 of the Intel PCI (Peripheral Component Interconnect) local bus specification. DRAM Support DDR3 SDRAM (Double Data Rate III Synchronous DRAM) is supported.

2 Supported CPUs This AMI UEFI BIOS supports the Intel CPU. Using Setup When starting up the computer, press 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 these keys to select item and change the settings. Notice z The default UEFI BIOS settings apply for most conditions to ensure optimum performance of the motherboard. If the system becomes 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. z For better system performance, the UEFI BIOS firmware is being continuously updated. The UEFI BIOS information described in this manual is for your reference 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 without notice. We will not be responsible for any mistakes found in this user’s manual and any system damage that may be caused by wrong-settings.

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 Memory Shows system memory size, VGA shard 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 system internal clock. Access Level Shows the access level of current user.

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 z Beware of that setting inappropriate values in items of this menu may cause system to malfunction. PCI Subsystem Settings

5 PCI ROM Priority In case of multiple option ROMs (Legacy and EFI Compatible), this item specifies what PCI Option ROM to launch Options: Legacy ROM (Default) / EFI Compatible ROM Above 4G Decoding Enables or disables 64bit capable device to be decoded in above 4G address space (only if system support 64 bit PCI decoding). Options: Disabled (Default) / Enabled 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 Clocks / 224 PCI Bus Clocks / 248 PCI Bus Clocks 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

6 PCI Express Settings Relaxed Ordering Enables or disables PCI express device No snoop option. Options: Disabled (Default) / Enabled Extended Tag If enabled allows device to use 8-bit tab field as a requester. Options: Disabled (Default) / Enabled No Snoop 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

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. Options: 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

8 ACPI Sleep State This item selects the highest ACPI sleep 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 ON: Powering on the system immediately when power returns. Last State: 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 choose the system boot up time, input hour, 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

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.” Options: Wake Key (Default) / Power Key / Ctrl+F1 / Ctrl+F2 / Ctrl+F3 / 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 allows you to enable or disabled the USB resume from S3/S4 function. Options: Disabled (Default) / Enabled CPU Configuration

10 Active Processor Cores This item sets number of cores to enable in each processor package. Options: All (Default) / 1 / 2 / 3 Limit CPUID Maximum When the computer is booted up, the operating system executes the CPUID instruction to identify the processor and its capabilities. 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 system. Options: Disabled (Default) / Enabled Execute-Disable Bit XD can prevent certain classes of malicious buffer overflow attacks when combined with a supporting OS (Windows Server 2003 SP1, Windows XP SP2, SuSE Linux 9.2, RedHat Enterprise 3 Update 3.). Options: Enabled (Default) / Disabled Intel Virtualization Tech Virtualization Technology can virtually separate your system resource into several parts, thus enhance the performance when running virtual machines or multi interface systems. Options: Disabled (Default) / Enabled Hardware Prefetcher The processor has a hardware prefetcher that automatically analyzes its requirements and prefetches data and instructions from the memory into the Level 2 cache that are likely to be required in the near future. This reduces the latency associated with memory reads. Options: Enabled (Default) / Disabled Adjacent Cache Line Prefetch The processor has a hardware adjacent cache line prefetch mechanism that automatically fetches an extra 64-byte cache line whenever the processor requests for a 64-byte cache line. This reduces cache latency by making the next cache line immediately available if the processor requires it as well. Options: Enabled (Default) / Disabled

11 SATA Configuration SATA Controller(s) This item enables/disables Serial ATA Device. Options: Enabled (Default) / Disabled SATA Mode Selection This item determines how SATA controller(s) operate. Options: IDE (Default) / AHCI / RAID Aggressive LPM Support This item enables PCH to aggressively enter link power state. Options: Enabled (Default) / Disabled SATA Controller Speed This item indicates the maximum speed the SATA controller can support. Options: Gen3 (Default) / Gen1 / Gen2

12 Software Feature Mask Configuration RAID 0 / 1 / 10 / 5 This item enables or disables RAID 0 / 1 /10 / 5 feature. Options: Enabled (Default) / Disabled Intel Rapid Recovery Technology This item enables or disables Intel Rapid Recovery Technology Options: Enabled (Default) / Disabled OROM UI and Banner If this item id enabled then the ROM UI is shown. Otherwise, no OROM banner or information will be displayed if all disks and RAID volumes are normal Options: Enabled (Default) / Disabled HDD Unlock If this item is enabled, the system indicates. the HDD password unlock in the OS. Options: Enabled (Default) / Disabled LED Locate If this item is enabled, the system indicates. the LED/SGPIO hardware is attached and pin to locate feature one the OS. Options: Enabled (Default) / Disabled IRRT Only on eSATA If this item is enabled, then only URRT volumes can span internal and eSATA drives. If this item is disabled, the any RAID volume can span internal and eSATA drives. Options: Enabled (Default) / Disabled

13 Smart Response Technology If this item is enables/ disables smart response technology. Options: Enabled (Default) / Disabled OROM UI Delay If this item is enabled, the system indicates. the delay of the OROM UI splash screen in a normal status.. Options: 2 Seconds (Default) / 4 Seconds / 6 Seconds / 8 Seconds / Intel(R) Rapid Start Technology Intel(R) Rapid Start Technology This item enables/disables Intel(R) Rapid Start Technology. Options: Disabled (Default) / Enabled Entry on S3 RTC Wake This item sets iFFS invocation upon S3 RTC wake . Options: Enabled (Default) / Disabled Entry After This item enables RTC wake timer at S3 entry. Options: 10 minutes (Default) / Immediately / 1 minute / 2 minutes / 5 minutes / 15 minutes / 30 minutes / 1 hour / 2 hours

14 Active Page Threshold Support This item allows system to support RST with small partition. Options: Disabled (Default) / Enabled Active Memory Threshold This item allows system to try to support RST when partition size > Active Page Threshold size in MB. When set to zero, the item will be in AUTO mode and check if partition size is enough at S3 entry. Options: 0 (Default) PCH-FW Configuration MDES BIOS Status Code This item enables/disables MDES BIOS status code.. Options: Disabled (Default) / Enabled

15 Firmware updated Configuration Me FW Image Re-Flash This item enables or disables Me FW image Re-Flash function. Options: Disabled (Default) / Enabled USB Configuration Legacy USB Support This item determines if the BIOS should provide legacy support 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 or Windows NT). Options: Enabled (Default) / Disabled / Auto

16 USB3.0 Support This item enables or disables USB3.0 (XHCI) Controller support. Options: Enabled (Default) / Disabled XHCI Hand-Off This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change should be claimed by XHCI driver. Options: Enabled (Default) / Disabled EHCI Hand-Off This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change should be claimed by EHCI driver. Options: Disabled (Default) / Enabled Port 60/64 Emulation This items enables I/O port 60h/64h emulation support. This should be enabled for the complete USB keyboard legacy support for non-USB aware OSes. Options: Enabled (Default) / Disabled USB transfer time-out The time-out value for Control, Bulk, and Interrupt transfers. Options: 20 sec (Default) / 1 sec / 5 sec / 10 sec Device reset time-out The item sets USB mass storage device Start Unit command time-out. Options: 20 sec (Default) / 10 sec / 30 sec / 40 sec Device power-up delay “Auto” uses default value: for a Root port it is 100ms, for a Hub port the delay is taken from Hub descriptor. Options: Auto (Default) / Manual Device power-up delay in seconds Delay range is 1 ~ 40 seconds, in one second increments. Options: 5 (Default)

17 SMART FAN Control CPU Smart FAN This item allows you to control the CPU Smart Fan function. Options: Disabled (Default) / Auto CPU FAN Calibrate Press [ENTER] to calibrate CPU FAN. Control Mode This item provides several operation modes of the fan. Options: Quiet / Aggressive / Manual Fan Ctrl OFF(℃) When CPU temperature is lower than this value, the CPU fan will keep lowest RPM. Options: 10 (℃) (default) Fan Ctrl On(℃) When CPU temperature is higher than this value, the CPU fan controller will turn on. Options: 20 (℃) (Default)

18 Fan Ctrl Start Value This item sets CPU FAN Start Speed Value. Options: 50 (Default) Fan Ctrl Sensitive The bigger the numeral is, the higher the FAN speed is. Options: 30 (Default) Super IO Configuration Serial Port 0 Configuration

19 Serial Port This item enables or disables Serial Port (COM). Options: Enabled (Default) / Disabled Change Settings This item selects an optimal setting for Super IO device. Options: Auto (Default) / IO=3F8h; IRQ=4 / IO=3F8h; IRQ=3,4,5,6,7,10,11,12 / IO=2F8h; IRQ=3,4,5,6,7,10,11,12 / IO=3E8h; IRQ=3,4,5,6,7,10,11,12 / IO=2E8h; IRQ=3,4,5,6,7,10,11,12 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, 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 parallel 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 Parallel port as Extended Capabilities Port) / ECP Mode & EPP Mode (Using Parallel port as ECP & EPP mode)

20 CIR Controller Configuration CIR Controller This item enables or disables CIR Controller. Options: Disabled (Default) / Enabled Change Settings This item selects an optimal setting for Super IO device. Options: Auto (Default) / IO=3E0h; IRQ=10 / IO=3E0h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12 / IO=2E0h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12 / IO=298h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12 H/W Monitor

21 Shutdown Temperature This item allows you to set up the CPU shutdown Temperature. Options: Disabled (Default) / 70 /158 / 75 /167 / 80 /176 / 85 /185 ℃ ℉ ℃ ℉ ℃ ℉ ℃ ℉ / 90 /194 ℃ ℉

22 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. Notice z Beware of that setting inappropriate values in items of this menu may cause system to malfunction. PCH-IO Configuration

23 on board lan option rom This item enables or disables onboard LAN option ROM. Options: Disabled (Default) / Enabled Launch Storage OpROM This item enables or disables boot Options for legacy mass storage devices with option ROM. Options: Enabled (Default) / Disabled Launch Video OpROM This item enables or disables execution of the legacy option ROM for video devices. Options: Enabled (Default) / Disabled / Enabled when no UEFI Driver PCI Express Configuration Onboard PCIE Giga LAN / PEX1_1 Slot / PEX1_2 Slot / PEX16_2 Slot This item controls the PCI Express Root Port. Options: Enabled (Default) / Disabled ASPM This item sets PCI Express Active State Power Management settings. Options: Disabled (Default) / L0s / L1 / L0sL1 / Auto

24 PCIe Speed This item selects PCI Express port speed. Options: Auto (Default) / Gen1 / Gen2 USB Configuration XHCI Pre-Boot Driver This item enables or disables XHCI Pre-Boot Driver support. Options: Enabled (Default) / Disabled XHCI Mode This item sets the mode of operation of XHCI controller. Options: Smart Auto (Default) / Auto / Enabled / Disabled HS Port #1 / #2 / #3 / #4 Switchable This item allows for HS port switching between xHCI and ECHI/ If disabled, port is routed to ECHI, If Hs port is routed to XHCIU, the corresponding SS port is enabled. Options: Enabled (Default) / Disabled xHCI Streams This item enables xHCI maximum primary stream array size. Options: Enabled (Default) / Disabled EHCI1/2 This item controls the USB EHCI (USB2.0) functions. One EHCI controller must always be enabled. Options: Enabled (Default) / Disabled

25 Azalia This item controls detection of the Azalia device. Disabled = Azalia will be unconditionally disabled. Enabled = Azalia will be unconditionally Enabled. Auto = Azalia will be enabled if present, disabled otherwise. Options: Auto (Default) / Disabled / Enabled Azalia Internal HDMI Codec This item enables or disables internal HDMI codec for Azalia. Options: Auto (Default) / Disabled EuP Control When EuP is enabled, the system will meet EuP requirement. Options: Disabled (Default) / Enabled in S5 / Enabled in S4-S5 High Precision Timer This item enables or disables the high precision event timer.. Options: Enabled (Default) / Disabled SLP_S4 Assertion Width This item selects a minimum assertion width of the SLP_S4# signal. Options: 4-5 Seconds (Default) / Disabled / 1-2 Seconds / 2-3 Seconds / 3-4 Seconds System Agent (SA) Configuration C-State Pre-Wake This item controls C-State Pre-Wake feature for ARAT, in SSKPR[57]. Options: Enabled (Default) / Disabled

26 Graphics Configuration Graphics turbo IMON Current This item sets graphics turbo IMON current values supported (14-31). Options: 31(Default) Primary Display This item select which of IGFX/PEG/PCI Graphics device should be Primary Display or select SG for Switchable Gfx. Options: Auto (Default) / IGFX / PEG / PCI Internal Graphics This item keeps IGD enabled based on the setup options. Options: Auto (Default) / Disabled / Enabled GTT Size This item select GTT Size. Options: 2MB (Default) / 1MB Aperture Size This item select Aperature Size. Options: 256MB (Default) / 128MB / 512MB

27 DVMT Pre-Allocated This item select DVMT 5.0 Pre-Allocated (Fixed) Graphics Memory size used by the Internal Graphics Device. Options: 64M (Default) / 32M / 96M / 128M / 160M / 192M / 224M / 256M / 288M / 320M / 352M / 384M / 416M / 448M / 480M / 512M / 1024M DVMT Total Gfx Mem This item select DVMT5.0 Total Graphic Memory size used by the Internal Graphics Device. Options: 256MB (Default) / 128MB / MAX Gfx Low Power Mode This option is applicable for SFF only Options: Enabled (Default) / Disabled Graphics Performance Analyzers This item is enables/ disables Intel graphics performance analyzers counters. Options: Disabled (Default) / Enabled DMI Configuration DMI Vc1 / Vcp / Vcm Control This item enables/ disables DMI Vc1 / Vcp / Vcm Options: Enabled (Default) / Disabled DMI Link ASPM Control This item enables/ disables the control of active state power management on SA side of the DMI link.. Options: L0sL1 (Default) / Disabled / L0S / L1

28 DMI Extended Synch Control This item enables/ disables DMI extended synchronization. Options: Disabled (Default) / Enabled DMI Gen2 This item enables/ disables DMI Gen2/nAuto means disabled for IVB A0 MB/DT and IVB B0MB, Enabled for other CPUs/ Options: Auto(Default) / Enabled / Disabled NB PCIe Configuration PEX16_1 – Gen X This item configures PEG0 B0:D1:F0 Gen1-Gen3. Options: Auto (Default) / Gen1 / Gen2 / Gen3 PEG0 ASPM This item controls ASPM support for the PEG: Device 1 Funtion0. This has no effect if PEG is not the currently active device. Options: Disabled (Default) / Auto / ASPM L0s / ASPM L1 / ASPM L0sL1 Enable PEG This item enables/ disables the PEG.. Options: Auto (Default) / Disabled / Enabled De-emphasis Control This item configures the De-emphasis control on PEG. Options: -3.5 dB (Default) / -6 dB

29 PEG Sampler Calibrate This item enables or disables PEG Sampler Calibrate. Auto means Disabled for SNB MB/DT, Enabled for IVB A0 B0. Options: Auto (Default) / Enabled / Disabled Swing Control This item performs PEG Swing Control, on IVB C0 and Later. Options: Full (Default) / Reduced / Half Gen3 Equalization This item performs PEG Gen3 Equalization steps. Options: Enabled (Default) / Disabled Memory Configuration Max TOLUD This item sets maximum value of TOLUD. Dynamic assignment would adjust TOLUD automatically based on largest MMIO length of installed graphic controller. Options: Dynamic (Default) / 1 GB / 1.25 GB / 1.5 GB / 1.75 GB / 2 GB / 2.25 GB / 2.5 GB / 2.75 GB / 3 GB / 3.25 GB NMode Support This item sets for NMode support option. Options: Auto (Default) / 1N Mode / 2N Mode

30 Memory Scrambler This item enables or disables memory scrambler support. Options: Enabled (Default) / Disabled MRC Fast Boot This item enables or disables MRC Fast Boot. Options: Enabled (Default) / Disabled Force Cold Reset Force cold reset or choose MRC cold reset mode, when cold boot is required during MRC execution. Note: If ME 5.0MB is present, Force cold reset is required!. Options: Enabled (Default) / Disabled DIMM Exit Mode This item sets DIMM Exit Mode Control.. Options: Fast Exit (Default) / Auto / Slow Exit Power Down Mode This item sets power down mode control. Options: PPD (Default) / No Power Down / APD / APD-PPD Scrambler Seed Generation Off This item sets control memory scrambler seed generation. Enable – do not generation scrambler seed. Disable – generation scrambler seed always. Options: Disabled (Default) / Enabled Memory Remap This item enables or disables memory remap above 4G. Options: Enabled (Default) / Disabled Memory Alias Check This item enables or disables memory alias check. Options: Disabled (Default) / Enabled Channel A / B DIMM Control This item enables or disables dims on channel A / B. Options: Enabled Both DIMMS(Default) / Disable DIMM0 / Disable DIMM1 / Disable Both DIMMS.

31 GT – Power Management Control RC6 (Render Standby) This item checks to enable render standby support. Options: Enabled (Default) / Disabled RC6+ (Deep RC6) This item checks to enable deep RC6 (RC6+) support. Options: Enabled (Default) / Disabled

32 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. Options: On (Default) / Off Full Screen LOGO Display This item allows you to enable/disable Full Screen LOGO Show function. Options: Enabled (Default) / Disabled GateA20 Active Upon Request – GA20 can be disabled using BIOS services. Always – do not allow disabling GA20; this option is useful when any RT code is executed above 1MB Options: Upon Request (Default) / Always

33 Option ROM Messages This item sets the display mode for Option 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 the option ROMs to trap interrupt 19. Options: Disabled (Default) / Enabled CSM Support This item enables / disables CSM Support. If Auto is selected, based on OS, CSM will be enabled / disabled automatically. Options: Enabled (Default) / Disabled / Auto BIOS Flash protection While enabled, it can’t flash write and flash erase by SMI. Options: Enabled (Default) / Disabled Boot Success Beep When this item is set to Enabled, BIOS will let user know boot success with beep. Options: Enabled (Default) / Disabled UEFI Boot This option enables/disables boot from the UEFI Devices. Options: Disabled (Default) / Enabled

34 5 Security Menu Administrator Password This item sets Administrator Password. User Password This item sets User Password.

35 6 Performance 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 z Beware of that setting inappropriate values in items of this menu may cause system to malfunction. Start Page You can set the entrance page when you enter UEFI BIOS Setup. Options: Page – Main (Default) / Page – Advanced / Page – Chipset / Page – Boot / Page – Security / Page – O.N.E / Page – Save & Exit Fixed CPU Ratio This item enables/disables Fixed CPU Ratio all the time. Options: Disabled (Default) / Enabled CPU Ratio This item allows you to set the CPU ratio. This item is adjustable only when Fixed CPU Ratio is set to Enabled. Options: 30 (Default) / 10 ~ 50

36 IA Core Current Max (1/8 Amp) This item sets IA core current MAX Options: 896 (Default) iGFX Core Current Max (1/8 Amp) This item sets iGFX core current MAX Options: 400 (Default) Enhanced Intel SpeedStep Technology This item enables/disables Enhanced Intel SpeedStep Technology. Options: Enabled (Default) / Disabled Turbo Mode This item enables/disables Turbo Mode. Options: Enabled (Default) / Disabled Power Limit 1 Value (1/8 Watt) This item sets the power limit value which CPU must not exceed over a specific time. Options: 616 (Default) Power Limit 2 Value (1/8 Watt) This item sets the power limit value which CPU must not exceed over a specific time. Options: 770 (Default) CPU C1E C1E is “Enhanced Halt State” function, this function helps to save power and decrease heat by lowering CPU frequency while the processor is not working. Options: Enabled (Default) / Disabled DRAM Timing Control This item allows you to choose to manually or automatically regulate the DRAM Timing. Options: By SPD (Default) / Manual

37 DDR DRAM Multiplier This item allows you to set DDR3 DRAM Multiplier. Options: 14(Default) / 16 / 18 / 20 / 22 / 26 / 28 CAS# Latency (tCL) This item allows you to select CAS Latency of DDR3. Options: 9 (Default) / 3 ~ 15 Row Precharge Time (tRP) This item allows you to select Row Precharge Time of DDR3. Options: 9 (Default) / 3 ~ 15 RAS# to CAS# Delay (tRCD) This item allows you to select Row Address to Column Address Delay of DDR3. Options: 9 (Default) / 3 ~ 15 RAS# Active Time (tRAS) This item allows you to select Row Active Time of DDR3. Options: 24 (Default) / 9 ~ 63 Write Recovery Time (tWR) This item allows you to select Internal Write to Read Command Delay of DDR3. Options: 10 (Default) / 3 ~ 31 Row Refresh Cycle Time (tRFC) This item allows you to select Minimum Refresh Recovery Time of DDR3. Options: 107 (Default) / 15 ~ 255 Write to Read Delay (tWTR) This item allows you to select Internal Write to Read Command Delay of DDR3. Options: 5 (Default) / 3 ~ 31

38 Active to Active Delay (tRRD) This item allows you to select Row Active to Row Active Delay of DDR3. Options: 4 (Default) / 4 ~ 15 Read CAS# Precharge (tRTP) This item allows you to select Read to Precharge Delay of DDR3. Options: 5 (Default) / 4 ~ 15 Four Active Window Delay (tFAW) This item allows you to select Four Active Window Delay of DDR3. Options: 20 (Default) / 4 ~ 63 Graphics Core Ratio Limit This item sets Graphics Core Ratio Limit. Options: 24 (Default) DRAM Voltage This item sets DRAM Voltage. BIOSTAR Memory Insight

39 DDR3 1/2/3/4 Information These items display SPD information of DDR3 memory.

40 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. Save Changes and Reset Reset the system after saving the changes. Restore Defaults This selection allows you to reload the BIOS when problem occurs during system booting sequence. These configurations are factory settings optimized for this system. Built-in EFI Shell Press enter to execute UEFI BIOS built-in EFI Shell.