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H55A+ BIOS Manual
BIOS Setup .................................................................................................1
1 Main Menu...............................................................................................3
2 Advanced Menu.......................................................................................8
3 PCIPnP Menu........................................................................................22
4 Boot Menu..............................................................................................25
5 Chipset Menu.........................................................................................28
6 Performance Menu...............................................................................33
7 Exit Menu...............................................................................................36
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Summary of Contents for Biostar H55A
- Page 1 H55A+ BIOS Manual BIOS Setup ....................1 1 Main Menu....................3 2 Advanced Menu..................8 3 PCIPnP Menu..................22 4 Boot Menu....................25 5 Chipset Menu..................28 6 Performance Menu................33 7 Exit Menu....................36...
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Page 2: Bios Setup
H55A+ BIOS Manual BIOS Setup Introduction T he purpose of this manual is to describe the settings in the AMI BIOS Setup program on this motherboard. The Setup program allows users to modify the basic system configuration and save these settings to CMOS RAM. T he power of CMOS RAM is supplied by a battery so that it retains the Setup information when the power is turned off. -
Page 3: Pci Bus Support
H55A+ BIOS Manual PCI Bus Support T his AMI BIOS also supports Version 2.3 of the Intel PCI (Peripheral Component Interconn ect) local bus speci fication. DRAM S upport DDR3 SDRAM (Double Data Rate III Synchronous DRAM) is supported. Supported CP Us T his AMI BIOS supports the Intel CPU. -
Page 4: System Memory
H55A+ BIOS Manual 1 Main Menu Once you enter AMI BIOS Setup Utility, the Main Menu will appear on the screen providing an overview of the basic system inform ation. BIOS SETUP UTILITY Main Advanced PCIPnP Boot Chipset Performance Exit... -
Page 5: Ide/S Ata Configuration
H55A+ BIOS Manual IDE/S ATA Configuration T he BIOS will automatically detect the presence of SAT A/IDE devices. There is a sub-menu fo r each SAT A/IDE device. Select a device and press <Enter> to enter the sub-menu of detailed options. -
Page 6: Ahci Configuration
H55A+ BIOS Manual AHCI Configuration BIOS SETUP UTILITY Main AHCI Settings Enables for supporting AHCI BIOS Support [Enabled] > AHCI Port0 > AHCI Port1 > AHCI Port2 > AHCI Port3 > AHCI Port4 > AHCI Port5 Select Screen Select Item... - Page 7 H55A+ BIOS Manual Device This area shows the detected connected device. SATA Port0/1/2/3/4/5 This item allows you to select the connected device type. Options: Auto (Default) / Not Installed S.M.A.R.T. This item allows you to control the device S.M.A.R.T function.
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Page 8: Hard Disk Write Protect
H55A+ BIOS Manual PIO Mode Select the PIO mode. Options: Auto (Default) / 0 / 1 / 2 / 3 / 4 DMA Mode Select the DMA mode. Options: Auto (Default) / SWDMA0 ~ 2 / MWDMA0 ~ 2 / UDMA0 ~ 5 S.M.A.R.T... -
Page 9: Advanced Menu
H55A+ BIOS Manual 2 Advanced Menu T he Advanced Menu allows you to configu re 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 10 H55A+ BIOS Manual C1E Support C1E is “Enhanced Halt State” function, this f unction helps to save power and decrease heat by lowering CPU frequen cy while the processor is not working. Options: Enabled (Default) / Disabled Hardware Prefetcher T he processor has a hardw are prefetch er that automatically analy zes its requirements and prefetches dat a and instructions from the memory into the Level 2 cache that are likely to be required in the near future.
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Page 11: Super Io Configuration
H55A+ BIOS Manual Execute-Disable Bit Capability T his item allows you to configure th e Execut e Disabled Bit function, which protects your system from buffer overflow attacks. Options: Enabled (Default) / Disabled Intel (R) HT Technology Hyper T hreading T echnology can improve p erfo rmance by splitting instructions into multiple streams. - Page 12 H55A+ BIOS Manual Parallel Port Address T his item allows you to determine access onboard p arallel port controller with which I/O Address. Options: 378 (Default) / 278 / 3BC / Disabled Parallel Port Mode T his item allows you to determine how the parallel port should function.
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Page 13: Hardware Health Configuration
H55A+ BIOS Manual Stroke Keys Selected T his item will show only when Keyboard PowerOn is set “Stroke Key.” Options: Ctrl+F1 (Default) / Wake Key / Power Key / Ctrl+F2 / Ctrl+F3 / Ctrl +F4 / Ctrl+F5 / Ctrl+F6 Mouse PowerOn T his item allows you to control the mouse power on function. -
Page 14: Smart Fan Configuration
H55A+ BIOS Manual Shutdow n Temperature T his item allows you to set up the CPU shutdown T emperature. This item is only effective under Windows 98 ACPI mode. ℃ ℉ ℃ ℉ 70 /158 ℃ ℉ / 75 / ℃... -
Page 15: Power Configuration
H55A+ BIOS Manual Fan Ctrl OFF(℃ ) If the CPU/System T emperature is lower than the set value, FAN will turn off. 0~127 (℃) (Interval: 1℃) Options: Fan Ctrl On(℃ ) CPU/System f an starts to work under smart fan function when arrive this set value. - Page 16 H55A+ BIOS Manual Suspend mode T he item allows you to select the suspend type under the ACPI operating system. Options: S1 (POS) (Default) Power on Suspend S3 (ST R) Suspend to RAM Auto POS+STR Repost Video on S3 Resume T he item allows you to determine whether to invoke VGA BIOS post on S3/ST R resume.
- Page 17 H55A+ BIOS Manual High Performance Event Timer T his item allows you to enable or disabled the HPET. Options: Disabled (Default) / Enabled Resume On PME# When you select Enabled, a PME signal from PCI card returns the system to Full ON state.
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Page 18: Onboard Lan Boot Rom
H55A+ BIOS Manual Onboard PCI/PCI-E Devices Configuration BIOS SETUP UTILITY Advanced Onboard PCI/PCI-E Devices Configuration Options Onboard PCIE Giga LAN [Auto] Auto Onboard LAN Boot ROM [Disabled] Enabled Disabled Onboard LAN MAC ID Select Screen Select Item Change Option General Help... -
Page 19: Intel V T-D Configuration
H55A+ BIOS Manual Intel V T-d Configuration BIOS S ETUP UTILITY Advanced Options Intel VT-d [ Disabled] Disa bled Enab led S elect Screen S elect Item C hange Option G eneral Help F1 0 S ave and Exit ES C E xit vxx.xx (C)C opyright 198 5-200x, Amer ican Megatre nds, Inc. -
Page 20: Mps Rev Ision
H55A+ BIOS Manual MPS Rev ision T he BIOS supports version 1.1 and 1.4 of the Intel multiprocessor speci fication. Select version supported by the operating system running on this computer. Option: 1.4 (Default) / 1.1 MPS and ACPI MADT ordering Modern ordering is for Windows XP or later OSes. -
Page 21: Smbios Configuration
H55A+ BIOS Manual Smbios Configuration BIOS S ETUP UTILITY Advanced Smbio s Configurati on SMBI OS SMI Wrapp er supp ort for PnP Func Smbio s Smi Support [Enabled] 50h- 54h S elect Screen S elect Item C hange Option... - Page 22 H55A+ BIOS Manual Legacy USB Support T his item determines if the BIOS should provide legacy support fo r USB devices like the keyboard, mouse, and USB drive. T his is a useful feature when using such USB devices with operating systems that do not natively support USB (e.g.
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Page 23: Pcipnp Menu
H55A+ BIOS Manual 3 PCIPnP Menu T his section describes con figuring the PCI bus system. PCI, or Personal Computer Interconn ect, is a system which allows I/O devices to operate at speeds nearing the speed o f the CPU itself uses when communicating with its own special components. -
Page 24: Pci Latency Timer
H55A+ BIOS Manual PCI Latency Timer T his item controls how long a PCI device can hold the PCI bus bef ore another takes over. T he longer the latency, the longer the PCI device can retain control of the bus before handing it over to another PCI device. -
Page 25: Dma Channel
H55A+ BIOS Manual DMA Channel 0/1/3/5/6/7 T hese items will allow you to assign each DMA channel a type, depending on the type of device using the channel. T he option “ Available” means the channel is going to assign automatically. -
Page 26: Boot Device Priority
H55A+ BIOS Manual 4 Boot Menu T his menu allows you to setup the system boot options. BIOS SETU P U TILITY Main Advan ced PCIPnP Boot Chipset Performance Exit Boot Settings Specifies the Boot Device Priority sequence. > Boot Device Priority >... -
Page 27: Boot Settings Configuration
H55A+ BIOS Manual CD/DV D Drives T he BIOS will attempt to arrange the CD/DVD drive boot sequence automatically. You can also change the booting sequence. The number of device items that appears on the screen depends on the number of devices installed in the system. -
Page 28: Ps/2 Mouse Support
H55A+ BIOS Manual PS/2 Mouse Support T his BIOS featu re det ermines i f the BIOS should reserv e IRQ12 for the PS/2 mouse or allow other devices to make use of this IRQ. Options: Auto (Default) / Disabled / Enabled Wait for ‘F1’... -
Page 29: Chipset Menu
H55A+ BIOS Manual 5 Chipset Menu T his submenu allows you to configure the speci fic features of the chipset installed on your system. T his chipset manage bus speeds and access to system memory resources, such as DRAM. It also coordinates communications with the PCI bus. -
Page 30: North Bridge Configuration
H55A+ BIOS Manual North Bridge Configuration BIOS S ETUP UTILITY Chips et North Bridge Chips et Configura tion ENAB LE: Allow rema pping of Memor y Remap Featu re [Enabled] over lapped PCI m emory Fast MRC [Disabled] abov e the total PCI MMIO Allocat ion: phys ical memory. - Page 31 H55A+ BIOS Manual IGD Graphics Mode Select T his item will be different as your memory modules. When the memory size is decided, this f rame bu ffer size will also be fixed. Options: Enabled,32MB (Default) / Enabled,64MB / Enabled,128MB / Disabled PEG Port T his BIOS feature is a toggle that enables or disables the PCI Express port.
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Page 32: South Bridge Configuration
H55A+ BIOS Manual DVMT/FIXED Memory Size DVMT stands for “ Dynamic Video Memory T echnology”. T his is an enhancement of the unified memory architecture (UMA) concept. DVMT will set the optimum amount of memory to be allocated for a balance between graphics and system perform ance. -
Page 33: Hda Controller
H55A+ BIOS Manual HDA Controller T his item allows you to control the HD Audio support. Options: Enabled (Default) / Disabled Internal HDMI Audio Codec T his item allows you to control enable or disable Internal HDMI Audio Codec. Options:... -
Page 34: Performance Menu
H55A+ BIOS Manual 6 Performance Menu T his submenu allows you to change voltage and clock of various devices. (Howev er, we suggest you to use the def ault setting. Changing the voltage and clock improperly may damage the device.) -
Page 35: Dram Frequency
H55A+ BIOS Manual Intel GP U Clock T his item allows you to GPU Clock. Options: Auto (Default) / 133MHz ~ 2000MHz DRAM Frequency T his item allows you to control the Memory Clock. Options: Auto (Default) / 800MHz / 1067MHz... - Page 36 H55A+ BIOS Manual DRAM tRP Options: 8 (Default) / 3 ~ 15 DRAM tRAS Options: 20 (Default) / 9 ~ 63 DRAM tRRD Options: 4 (Default) / 4 ~ 15 DRAM tWR Options: 8 (Default) / 3 ~ 31 DRAM tWTR...
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Page 37: Clock Gen Configuration
H55A+ BIOS Manual Clock Gen Configuration BIOS SETUP UTILITY Performance Clock Gen Configuration Options PCIE Clock By [Auto] Auto PCIE Frequency Setting [100] Manual CPU Clock delay [No delay] PCH Clock delay [No delay] Select Screen Select Item Change Option... -
Page 38: Voltage Control
H55A+ BIOS Manual Voltage Control BIOS SETUP UTILITY Performance Voltage Control CPU Vcore Over Voltage CPU Vcore CPU VTT Voltage DRAM Voltage Integrated GPU Voltage CPU Temperature System Temperature CPU Vcore Voltage [Auto] CPU VTT Voltage [Auto] DRAM Voltage [Auto]... - Page 39 H55A+ BIOS Manual Intel PPM Configuration BIOS SETUP UTILITY Performance Intel PPM Configuration Disabled: Disable GV3 Enable: Enable GV3 Intel(R)SpeedStep(tm) tech [Enabled] Factory default TDC limit value : Factory default TDP limit value : Intel C-STATE tech [Enabled] C State package limit setting...
- Page 40 H55A+ BIOS Manual C1 Auto Demotion When enabled, CPU will conditionally demote C3/C6/C7 requests to C1 based on uncore auto-demote inf o rmation. Options: Enabled (Default) / Disabled C3 Auto Demotion When enabled, CPU will conditionally demote C6/C7 requests to C3 based on uncore auto-demote inf o rmation.
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Page 41: Save Changes And Exit
H55A+ BIOS Manual 7 Exit Menu T his menu allows you to load the optimal default settings, and save or discard the changes to the BIOS items. BIOS SETU P U TILITY Main Advan ced PCIPnP Boot Chipset Performance Exit... -
Page 42: Change Supervisor Password
H55A+ BIOS Manual Security T his sub-menu allows you to provide/revise supervisor and user password. BIOS SETU P U TILITY Exit Security Setti ngs Install or Change the password. Supervisor Pas sword :Not Installe d User Password :Not Installe d... - Page 43 H55A+ BIOS Manual Passw ord Check T his item is for setting the timing that checking password. Options: Setup (Default) / Always Boot Sector Virus Protection T his option allows you to choose the VIRUS Warning feature that is used to protect the IDE H ard Disk boot sector.
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