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Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
Package contents ...................... xii Chapter 1: Product introduction Special features..................1-1 1.1.1 Product highlights................ 1-1 1.1.2 ASUS Hybrid DIGI+ VRM ............1-1 1.1.3 ASUS Exclusive features ............1-2 Before you proceed ................... 1-4 Motherboard overview ................1-5 1.3.1 Placement direction..............1-5 1.3.2...
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Chapter 2: BIOS setup Managing and updating your BIOS ............2-1 2.1.1 ASUS Update utility..............2-1 2.1.2 ASUS EZ Flash 2 ................ 2-2 2.1.3 ASUS CrashFree BIOS 3 utility........... 2-3 2.1.4 ASUS BIOS Updater ..............2-4 BIOS setup program .................. 2-7 Main menu ....................
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2.7.8 Boot Option Priorities ..............2-26 2.7.9 Boot Override ................2-26 Tools menu ....................2-27 2.8.1 ASUS EZ Flash 2 Utility ............2-27 2.8.2 ASUS O.C. Profile ..............2-27 2.8.3 ASUS SPD Information ............. 2-27 Exit menu ....................2-28 Appendices Notices ........................
Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
Refer to the following sources for additional information and for product and software updates. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.
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Typography Bold text Indicates a menu or an item to select. Italics Used to emphasize a word or a phrase. <Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key. Example: <Enter> means that you must press the Enter or Return key.
DDR3 2250(O.C.) / 1866 /1600/ 1333/ 1066 MHz memory modules • The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. • Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List).
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- AI Charger - Anti-Surge Protection - ASUS UEFI BIOS EZ Mode ASUS Quiet Thermal Solution - ASUS Fanless Design: Stylish heatsink solution - ASUS Fan Xpert ASUS EZ DIY - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2...
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1 x I/O shield 1 x User Manual 1 x Support DVD Support DVD Drivers ASUS PC Probe II ASUS Update Anti-Virus software (OEM version) Form factor uATX form factor: 9.6 in x 9.0 in (24.4 cm x 22.9 cm)
Package contents Check your motherboard package for the following items. F1A55-M LE R2.0 ASUS F1A55-M LE R2.0 motherboard 2 x Serial ATA 3.0 Gb/s cables 1 x I/O-Shield User Guide Support DVD • If any of the above items is damaged or missing, contact your retailer.
1.1.2 ASUS Hybrid DIGI+ VRM Hybrid DIGI+VRM, a unique ASUS-exclusive design on ASUS motherboards with the AMD A55 chipset, creates an all-around platform for a diverse range of applications, including gaming, multimedia, and productivity. It allows APU voltage and VRM frequency adjustments via preset modes and user-defined profiles.
(PSU). AI Suite II With its user interface, ASUS AI Suite II integrates several ASUS utilities and allows you to launch and operate these utilities simultaneously. It allows you to configure the overclocking settings, adjust the frequencies and related voltages, remotely control the system via a mobile device, and other easy-to-use helpful utilities.
ASUS EZ Flash 2 ASUS EZ Flash 2 is a user-friendly utility that allows you to update the BIOS without using a bootable floppy disk or an OS-based utility.
Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity.
Place six screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis F1A55-M LE R2.0 ASUS F1A55-M LE R2.0...
Accelerated Processing Unit (CPU) The motherboard comes with an FM1 socket designed for AMD A- & E2-series accelerated ® processors with AMD Radeon HD 6000 series graphics. ® F1A55-M LE R2.0 F1A55-M LE R2.0 CPU socket FM1 1.4.1 Installing the APU Ensure that you use a CPU designed for the FM2 socket.
1.4.2 APU heatsink and fan assembly installation Apply the Thermal Interface Material to the APU heatsink and APU before you install the heatsink and fan if necessary. To install the APU heatsink and fan assembly ASUS F1A55-M LE R2.0...
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To uninstall the APU heatsink and fan assembly Chapter 1: Product introduction 1-10...
DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption. The figure illustrates the location of the DDR3 DIMM sockets: Channel Sockets Channel A DIMM_A1 Channel B DIMM_B1 F1A55-M LE R2.0 F1A55-M LE R2.0 240-pin DDR3 DIMM sockets ASUS F1A55-M LE R2.0 1-11...
• The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. • The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module.
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KINGSTON KHX2000C9AD3 1.65V • • T1K3/6GX(XMP) (3x 2GB ) OCZ3XTEP200 9-9-9-24 1.65V • • 0C9LV4GK (2 x 2GB) Transcend TX2000KLN-8GK(XMP) 1.6V • • (2 x 4GB) PATRIOT PVT36G2000LLK 8-8-8-24 1.65V • • (3 x 2GB) ASUS F1A55-M LE R2.0 1-13...
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DDR3-1866 MHz capability Vendors Part No. Size Chip Chip Timing Voltage DIMM socket Brand support (Optional) 1 DIMM 2 DIMM CORSAIR CMT4GX3M2A 9-9-9-24 1.65V • • 1866C9(XMP) (2 x 2GB) CORSAIR CMT6GX3MA 9-9-9-24 1.65V • • 1866C9(XMP) (3 x 2GB) CORSAIR CMZ8GX3M2A 9-10-9-27...
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KINGSTON KHX1600C9D3X2K2/ 9-9-9-27 1.65V • • 4GX(XMP) (2 x 2GB) KINGSTON KHX1600C9D3T1K3/ 6GB ( 3x 1.65V • • 6GX(XMP) 2GB ) KINGSTON KHX1600C9D3K3/ 6GB(3 x 1.65V • • 6GX(XMP) 2GB) (continued on the next page) ASUS F1A55-M LE R2.0 1-15...
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DDR3-1600 MHz capability Vendors Part No. Size SS/DS Chip Chip Timing Voltage DIMM socket Brand support (Optional) 1 DIMM 2 DIMM KINGSTON KHX1600C9D3 6GB( 9-9-9-27 1.65V • • T1BK3/6GX(XMP) 3 x 2GB) KINGSTON KHX1600C9D3K2/ 9-9-9-27 1.65V • • 8GX(XMP) (2 x 4GB) OCZ3G1600LV3GK 8-8-8-24 1.65V...
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TFRH9A (low voltage) Hynix HMT325U6 Hynix H5TQ2G83 • • BFR8C-H9 BFRH9C Hynix HMT125U6 Hynix H5TC1G83 1.35V • • TFR8A-H9 TFRH9A (low voltage) Hynix HMT351U6 Hynix H5TQ2G83 • • BFR8C-H9 BFRH9C (continued on the next page) ASUS F1A55-M LE R2.0 1-17...
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable. ASUS F1A55-M LE R2.0 1-21...
1.6.3 PCI slot The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. 1.6.4 PCI Express x1 slot This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications.
You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values. ASUS F1A55-M LE R2.0 1-23...
Connectors 1.8.1 Rear panel connectors PS/2 Mouse port (green). This port is for a PS/2 mouse. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
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DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to output RGB Signal to CRT and isn’t compatible with DVI-I. PS/2 Keyboard port (green). This port is for a PS/2 keyboard. ASUS F1A55-M LE R2.0 1-25...
The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power. • Only the CPU_FAN and CHA_FAN connectors support the ASUS Fan Xpert feature. • If you install two VGA cards, we recommend that you plug the rear chassis fan cable to the motherboard connector labeled CHA_FAN for better thermal environment.
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The system may become unstable or may not boot up if the power is inadequate. • If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details. ASUS F1A55-M LE R2.0 1-27...
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Serial ATA 3.0 Gb/s connectors (7-pin SATA3G 1~6) These connectors are for the Serial ATA 3.0 Gb/s signal cables for Serial ATA hard disk drives and optical disc drives. If you installed Serial ATA hard disk drives, you can create a RAID 0, RAID 1, RAID 10, or JBOD configuration through the onboard controller.
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COM1 PIN 1 F1A55-M LE R2.0 F1A55-M LE R2.0 Serial port (COM1) connector The COM module is purchased separately. ASUS F1A55-M LE R2.0 1-29...
System panel connector (10-1 pin F_PANEL) This connector supports several chassis-mounted functions. F_PANEL PWR LED PWR BTN PIN 1 F1A55-M LE R2.0 HD_LED RESET F1A55-M LE R2.0 System panel connector • System power LED (2-pin PLED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector.
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If you want to connect a high definition front panel audio module to this connector, set the Front Panel Type item in the BIOS to [HD]. See section 2.5.5 Onboard Devices Configuration for details. • The front panel audio I/O module is purchased separately. ASUS F1A55-M LE R2.0 1-31...
USB 2.0 connectors (10-1 pin USB56, USB78, USB910) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480Mbps connection speed.
Place the Support DVD into the optical drive. If Autorun is enabled in your computer, the DVD automatically displays the Specials screen which contains the unique features of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to display their respective menus.
BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility. 2.1.1 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows environment. ®...
Follow the onscreen instructions to complete the updating process. 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility. Before you start using this utility, download the latest BIOS file from the ASUS website at www.asus.com.
2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the updated BIOS file.
2.1.4 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also allows you to copy the current BIOS file that you can use as a backup when the BIOS fails or gets corrupted during the updating process.
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The BIOS Updater backup screen appears indicating the BIOS backup process. When BIOS backup is done, press any key to return to the DOS prompt. ASUS F1A55-M LE R2.0...
Updating the BIOS file To update the BIOS file using BIOS Updater: At the FreeDOS prompt, type bupdater /pc /g and press <Enter>. The BIOS Updater screen appears as below. Press <Tab> to switch between screen fields and use the <Up/Down/Home/End> keys to select the BIOS file and press <Enter>.
The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen. Visit the ASUS website at www.asus.com to download the latest BIOS file for this • motherboard.
Advanced Mode Displays the Loads optimized default Power Saving mode Advanced mode ASUS Optimal mode Normal mode functions Selects the Displays the system properties Selects the boot device priority...
The Advanced Mode provides advanced options for experienced end-users to configure the BIOS settings. The figure below shows an example of the Advanced Mode. Refer to the following sections for the detailed configurations. To access the EZ Mode, click Exit, then select ASUS EZ Mode. Back button Menu items...
Menu items The highlighted item on the menu bar displays the specific items for that menu. For example, selecting Main shows the Main menu items. The other items (Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have their respective menu items.
RAM to clear the BIOS password. See section 1.7 Jumpers for information on how to erase the RTC RAM. The Administrator or User Password items on top of the screen show the default • Not Installed. After you set a password, these items show Installed. ASUS F1A55-M LE R2.0 2-11...
Administrator Password If you have set an administrator password, we recommend that you enter the administrator password for accessing the system. Otherwise, you might be able to see or change only selected fields in the BIOS setup program. To set an administrator password: Select the Administrator Password item and press <Enter>.
The configuration options for this section vary depending on the CPU and DIMM model you installed on the motherboard. Scroll down to display more items: Target CPU Speed : xxxxMHz Displays the current CPU speed. Target DRAM Speed : xxxxMHz Displays the current DRAM speed. ASUS F1A55-M LE R2.0 2-13...
2.4.1 Ai Overclock Tuner [Auto] Allows you to select the CPU overclocking options to achieve the desired CPU internal frequency. Select any of these preset overclocking configuration options: [Auto] Loads the optimal settings for the system. [Manual] Allows you to individually set overclocking parameters. [D.O.C.P.] Allows you to select a DRAM O.C.
Allows you to control the power phase based on the CPU’s demands. Configuration options: [Standard] [Optimized] [Extreme] [Manual Adjustment] DO NOT remove the thermal module when switching to Extreme and Manual Adjustment. The thermal conditions should be monitored. ASUS F1A55-M LE R2.0 2-15...
2.4.8 CPU Voltage [Offset Mode] [Offset Mode] To offset the voltage by a positive or negative value. CPU Offset Mode Sign [+] To offset the voltage by a positive value. [–] To offset the voltage by a negative value. CPU Offset Voltage [Auto] Allows you to set the CPU Offset voltage.
The system may need better cooling system to work stably under high voltage settings. 2.4.15 APU Spread Spectrum [Auto] [Auto] Automatic configuration. [Disabled] Enhances the PCIE overclocking ability. [Enabled] Sets to [Enabled] for EMI control. ASUS F1A55-M LE R2.0 2-17...
Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of the Advanced menu items. Incorrect field values can cause the system to malfunction. 2.5.1 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects.
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When read/write of your hard disk errors occur, this feature allows the hard disk to report warning messages during the POST. Configuration options: [Enabled] [Disabled] ASUS F1A55-M LE R2.0 2-19...
2.5.3 USB Configuration The items in this menu allow you to change the USB-related features. The USB Devices item shows the auto-detected values. If no USB device is detected, the item shows None. Legacy USB Support [Enabled] [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Disabled] The USB devices can be used only for the BIOS setup program.
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Allows you to select the Parallel Port base address. Configuration options: [IO=378h; IRQ=5] [IO=378h; IRQ=5,6,7,9,10,11,12] [IO=278h; IRQ=5,6,7,9,10,11,12] Device Mode [Auto] Allows you to set the Printer port mode. Configuration options: [Standard Parallel Port Mode] [EPP Mode] [ECP Mode] [EPP Mode & ECP Mode] ASUS F1A55-M LE R2.0 2-21...
2.5.6 Restore AC Power Loss [Power Off] [Power On] The system goes into on state after an AC power loss. [Power Off] The system goes into off state after an AC power loss. [Last State] The system goes into either off or on state, whatever the system state was before the AC power loss.
This item appears only when you enable the CPU Q-Fan Control feature and allows you to disable or set the CPU fan warning speed. Configuration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM] ASUS F1A55-M LE R2.0 2-23...
CPU Fan Profile [Standard] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appropriate performance level of the CPU fan. [Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on the CPU temperature.
[Disabled] Disables the full screen logo display feature. Set this item to [Enabled] to use the ASUS MyLogo 2™ feature. Post Report [5 sec] This item appears only when the Full Screen Logo item is set to [Disabled] and allows you to set the waiting time for the system to display the post report.
<Enter> to display the submenu. 2.8.1 ASUS EZ Flash 2 Utility Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen. For more details, see section 2.1.2 ASUS EZ Flash 2. 2.8.2 ASUS O.C.
This option allows you to exit the Setup program without saving your changes. When you select this option or if you press <Esc>, a confirmation window appears. Select Yes to discard changes and exit. ASUS EZ Mode This option allows you to enter the EZ Mode screen. Launch EFI Shell from filesystem device This option allows you to attempt to launch the UEFI Shell application (shellx64.efi) from one...
The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. ASUS F1A55-M LE R2.0...
IC: Canadian Compliance Statement Complies with the Canadian ICES-003 Class B specifications. This device complies with RSS 210 of Industry Canada. This Class B device meets all the requirements of the Canadian interference-causing equipment regulations. This device complies with Industry Canada license exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
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ASUS Recycling/Takeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials.
+1-812-282-3777 +1-510-608-4555 Web site usa.asus.com Technical Support Telephone +1-812-282-2787 Support fax +1-812-284-0883 Online support support.asus.com ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str. 21-23, D-40880 Ratingen, Germany +49-2102-959911 Web site www.asus.de Online contact www.asus.de/sales Technical Support Telephone +49-1805-010923* Support Fax...