F2A55-M LK2 User's Manual
Page 2
... COMPUTER INC. ("ASUS"). Product warranty or service will be much obliged if you to the source code of these licenses are used only for identification or explanation and to the owners' benefit, without intent to have it from http://support.asus.com/download or (2) for which is distributed without the express written permission of Certain Software This product contains...
... COMPUTER INC. ("ASUS"). Product warranty or service will be much obliged if you to the source code of these licenses are used only for identification or explanation and to the owners' benefit, without intent to have it from http://support.asus.com/download or (2) for which is distributed without the express written permission of Certain Software This product contains...
F2A55-M LK2 User's Manual
Page 3
... 1-7 1.4.1 APU installation 1-8 1.4.2 APU heatsink and fan assembly installation 1-9 1.5 System memory 1-11 1.5.1 Overview 1-11 1.5.2 Memory configurations 1-12 1.5.3 Installing a DIMM 1-16 1.6 Expansion slots 1-17 1.6.1 Installing an expansion card 1-17 1.6.2 Configuring an expansion card 1-17 1.6.3 PCI slot 1-17 1.6.4 PCI Express x1 slot 1-17 1.6.5 PCI Express x16 slot 1-17 1.7 Jumpers...1-19 1.8 Connectors 1-21 1.8.1 Rear panel ports 1-21 1.8.2 Internal connectors 1-22 1.9 Software support 1-28 1.9.1 Installing an operating system 1-28 1.9.2 Support DVD information 1-28...
... 1-7 1.4.1 APU installation 1-8 1.4.2 APU heatsink and fan assembly installation 1-9 1.5 System memory 1-11 1.5.1 Overview 1-11 1.5.2 Memory configurations 1-12 1.5.3 Installing a DIMM 1-16 1.6 Expansion slots 1-17 1.6.1 Installing an expansion card 1-17 1.6.2 Configuring an expansion card 1-17 1.6.3 PCI slot 1-17 1.6.4 PCI Express x1 slot 1-17 1.6.5 PCI Express x16 slot 1-17 1.7 Jumpers...1-19 1.8 Connectors 1-21 1.8.1 Rear panel ports 1-21 1.8.2 Internal connectors 1-22 1.9 Software support 1-28 1.9.1 Installing an operating system 1-28 1.9.2 Support DVD information 1-28...
F2A55-M LK2 User's Manual
Page 9
... Series Graphics in the front panel to http://www.amd.com/us/products/technologies/dual-graphics/ Pages/dual-graphics.aspx#3 for the discrete GPUs which support Dual Graphics technology. 1 x PCIe 2.0 x16 slot 1 x PCIe 2.0 x1 slots 1 x PCI slot AMD® A55 FCH: - 4 x Serial ATA 3.0Gb/s connectors support RAID 0, RAID 1, RAID 10 and JBOD configurations Realtek® 8111F PCIe Gigabit LAN controller Realtek® ALC887-VD 8-channel High Definition Audio CODEC • Use a chassis with max. AMD® A55 FCH: - 8 x USB 2.0/1.1 ports (4 ports at the mid-board, 4 ports at the back panel...
... Series Graphics in the front panel to http://www.amd.com/us/products/technologies/dual-graphics/ Pages/dual-graphics.aspx#3 for the discrete GPUs which support Dual Graphics technology. 1 x PCIe 2.0 x16 slot 1 x PCIe 2.0 x1 slots 1 x PCI slot AMD® A55 FCH: - 4 x Serial ATA 3.0Gb/s connectors support RAID 0, RAID 1, RAID 10 and JBOD configurations Realtek® 8111F PCIe Gigabit LAN controller Realtek® ALC887-VD 8-channel High Definition Audio CODEC • Use a chassis with max. AMD® A55 FCH: - 8 x USB 2.0/1.1 ports (4 ports at the mid-board, 4 ports at the back panel...
F2A55-M LK2 User's Manual
Page 10
... Power Design Network iControl ASUS EPU ASUS AI Suite II ASUS UEFI BIOS EZ Mode ASUS Anti-Surge Protection ASUS Fan Xpert ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS MyLogo 2™ 100% All high quality conductive polymer (F2A55-M LK2 PLUS only) 1 x PS/2 mouse port (green) 1 x PS/2 keyboard port (purple) 1 x DVI-D port 1 x D-Sub output port 1 x LAN (RJ-45) port 4 x USB 2.0/1.1 ports 8-channel audio I/O ports (3-jack) 2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports 4 x SATA 3.0Gb/s connectors 1 x COM connector 1 x System panel connector 1 x Internal Speaker connector 1 x CPU...
... Power Design Network iControl ASUS EPU ASUS AI Suite II ASUS UEFI BIOS EZ Mode ASUS Anti-Surge Protection ASUS Fan Xpert ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS MyLogo 2™ 100% All high quality conductive polymer (F2A55-M LK2 PLUS only) 1 x PS/2 mouse port (green) 1 x PS/2 keyboard port (purple) 1 x DVI-D port 1 x D-Sub output port 1 x LAN (RJ-45) port 4 x USB 2.0/1.1 ports 8-channel audio I/O ports (3-jack) 2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports 4 x SATA 3.0Gb/s connectors 1 x COM connector 1 x System panel connector 1 x Internal Speaker connector 1 x CPU...
F2A55-M LK2 User's Manual
Page 13
... a highly integrated Gb LAN controller. Dual-Channel DDR3 1866 / 1600 / 1333 / 1066 MHz Support The motherboard supports the dual-channel DDR3 memory that automatically detects and identifies what types of peripherals are plugged into the audio I/O jacks and notifies users of inappropriate connection, which means there will be no more confusion of DDR3 1866 / 1600 / 1333 / 1066 MHz to boost the system's performance, and to 5GT/s. ASUS F2A55-M LK2 Series...
... a highly integrated Gb LAN controller. Dual-Channel DDR3 1866 / 1600 / 1333 / 1066 MHz Support The motherboard supports the dual-channel DDR3 memory that automatically detects and identifies what types of peripherals are plugged into the audio I/O jacks and notifies users of inappropriate connection, which means there will be no more confusion of DDR3 1866 / 1600 / 1333 / 1066 MHz to boost the system's performance, and to 5GT/s. ASUS F2A55-M LK2 Series...
F2A55-M LK2 User's Manual
Page 15
... BIOS without using a bootable floppy disk or an OS-based utility. AI Suite II With its user interface, ASUS AI Suite II integrates several ASUS utilities and 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 CrashFree BIOS 3 ASUS CrashFree BIOS 3 allows you to restore a corrupted BIOS file from a USB storage device that allows you to adjust the CPU fan speed...
... BIOS without using a bootable floppy disk or an OS-based utility. AI Suite II With its user interface, ASUS AI Suite II integrates several ASUS utilities and 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 CrashFree BIOS 3 ASUS CrashFree BIOS 3 allows you to restore a corrupted BIOS file from a USB storage device that allows you to adjust the CPU fan speed...
F2A55-M LK2 User's Manual
Page 19
SATA 3.0Gb/s connectors (7-pin SATA3G_1~4) 7. Ensure that you use a APU designed for AMD® A-series accelerated processors with AMD® Radeon™ HD 7000 series graphics. F2A55-M LK2 PLUS F2A55-M LK2 PLUS CPU socket FM2 ASUS F2A55-M LK2 Series 1-7 AMD FM2 socket 4. CPU fan connector (4-pin CPU_FAN) 5. Serial port connector (10-1 pin COM) 12. Front panel audio connector (10-1 pin AAFP) 14. DDR3 DIMM slots 6. Digital audio connector (4-1 pin SPDIF_OUT) 13. USB device wake-up (3-pin USBPW1-4, 3-pin USBPW5-8) Page 1-21 1-24 1-7 1-23 1-11 1-25 1-20 1-26 1-26...
SATA 3.0Gb/s connectors (7-pin SATA3G_1~4) 7. Ensure that you use a APU designed for AMD® A-series accelerated processors with AMD® Radeon™ HD 7000 series graphics. F2A55-M LK2 PLUS F2A55-M LK2 PLUS CPU socket FM2 ASUS F2A55-M LK2 Series 1-7 AMD FM2 socket 4. CPU fan connector (4-pin CPU_FAN) 5. Serial port connector (10-1 pin COM) 12. Front panel audio connector (10-1 pin AAFP) 14. DDR3 DIMM slots 6. Digital audio connector (4-1 pin SPDIF_OUT) 13. USB device wake-up (3-pin USBPW1-4, 3-pin USBPW5-8) Page 1-21 1-24 1-7 1-23 1-11 1-25 1-20 1-26 1-26...
F2A55-M LK2 User's Manual
Page 29
... the power cord before adding or removing expansion cards. Install the software drivers for information on the system and change the necessary BIOS settings, if any. Before installing the expansion card, read the documentation that they support. Align the card connector with the PCI Express specifications. The following sub‑sections describe the slots and the expansion cards that came with the screw you removed earlier. 6. Secure the card to the card. 3. ASUS F2A55-M LK2 Series...
... the power cord before adding or removing expansion cards. Install the software drivers for information on the system and change the necessary BIOS settings, if any. Before installing the expansion card, read the documentation that they support. Align the card connector with the PCI Express specifications. The following sub‑sections describe the slots and the expansion cards that came with the screw you removed earlier. 6. Secure the card to the card. 3. ASUS F2A55-M LK2 Series...
F2A55-M LK2 User's Manual
Page 31
... hangs due to overclocking, use the CPU Parameter Recall (C.P.R) feature. For system failure due to overclocking. Shut down the key during the boot process and enter BIOS setup to clear the CMOS RTC RAM data. ASUS F2A55-M LK2 Series 1-19 The onboard button cell battery powers the RAM data in CMOS. Keep the cap on CLRTC jumper default position. Plug the power cord and turn ON the computer. 4. Except when clearing the RTC RAM, never remove the cap on pins 2-3 for about...
... hangs due to overclocking, use the CPU Parameter Recall (C.P.R) feature. For system failure due to overclocking. Shut down the key during the boot process and enter BIOS setup to clear the CMOS RTC RAM data. ASUS F2A55-M LK2 Series 1-19 The onboard button cell battery powers the RAM data in CMOS. Keep the cap on CLRTC jumper default position. Plug the power cord and turn ON the computer. 4. Except when clearing the RTC RAM, never remove the cap on pins 2-3 for about...
F2A55-M LK2 User's Manual
Page 32
... (Default) F2A55-M LK2 PLUS USBPW5-8 12 23 +5V +5VSB (Default) F2A55-M LK2 PLUS USB Device Wake Up • The USB device wake-up from S1 sleep mode (CPU stopped, DRAM refreshed, system running in the BIOS. Keyboard power (3-pin KBPWR) This jumper allows you can wake up feature. When you set this jumper to pins 2-3 (+5VSB), you to CPU, DRAM in slow refresh, power supply in sleep mode. 2. This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead for each USB port...
... (Default) F2A55-M LK2 PLUS USBPW5-8 12 23 +5V +5VSB (Default) F2A55-M LK2 PLUS USB Device Wake Up • The USB device wake-up from S1 sleep mode (CPU stopped, DRAM refreshed, system running in the BIOS. Keyboard power (3-pin KBPWR) This jumper allows you can wake up feature. When you set this jumper to pins 2-3 (+5VSB), you to CPU, DRAM in slow refresh, power supply in sleep mode. 2. This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead for each USB port...
F2A55-M LK2 User's Manual
Page 34
... Serial Bus (USB) ports are for USB 2.0/1.1 devices. 8. Video Graphics Adapter (VGA) port. DO NOT place jumper caps on the motherboard, ensuring that the black wire of each cable matches the ground pin of maximum 2A (24 W) fan power. • Only the CPU_FAN connector support the ASUS Fan Xpert feature. 1-22 Chapter 1: Product introduction These two 4-pin Universal Serial Bus (USB) ports are not jumpers! This 15-pin port is for a PS/2 keyboard. 1.8.2 Internal connectors 1. PS/2 Keyboard port (purple). CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND F2A55-M LK2 PLUS...
... Serial Bus (USB) ports are for USB 2.0/1.1 devices. 8. Video Graphics Adapter (VGA) port. DO NOT place jumper caps on the motherboard, ensuring that the black wire of each cable matches the ground pin of maximum 2A (24 W) fan power. • Only the CPU_FAN connector support the ASUS Fan Xpert feature. 1-22 Chapter 1: Product introduction These two 4-pin Universal Serial Bus (USB) ports are not jumpers! This 15-pin port is for a PS/2 keyboard. 1.8.2 Internal connectors 1. PS/2 Keyboard port (purple). CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND F2A55-M LK2 PLUS...
F2A55-M LK2 User's Manual
Page 39
... USB 2.0 specification that supports up to the USB connectors. The USB 2.0 module is purchased separately. USB 2.0 connectors (10-1 pin USB56, USB78) These connectors are for a serial (COM) port. 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. USB78 USB56 USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P8USB_P8+ GND NC F2A55-M LK2 PLUS PIN 1 PIN 1 USB+5V USB_P5USB_P5+ GND USB+5V USB_P7USB_P7+ GND F2A55-M LK2 PLUS USB2.0 connectors...
... USB 2.0 specification that supports up to the USB connectors. The USB 2.0 module is purchased separately. USB 2.0 connectors (10-1 pin USB56, USB78) These connectors are for a serial (COM) port. 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. USB78 USB56 USB+5V USB_P6USB_P6+ GND NC USB+5V USB_P8USB_P8+ GND NC F2A55-M LK2 PLUS PIN 1 PIN 1 USB+5V USB_P5USB_P5+ GND USB+5V USB_P7USB_P7+ GND F2A55-M LK2 PLUS USB2.0 connectors...
F2A55-M LK2 User's Manual
Page 40
... the Support DVD to change at www.asus.com for reference only. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to run the Support DVD Place the Support DVD into the optical drive. Click an icon to display Support DVD/motherboard information Click an item to install If Autorun is NOT enabled on your OS documentation for detailed information. • Ensure that you install Windows® XP Service Pack 3 or later versions / Windows...
... the Support DVD to change at www.asus.com for reference only. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to run the Support DVD Place the Support DVD into the optical drive. Click an icon to display Support DVD/motherboard information Click an item to install If Autorun is NOT enabled on your OS documentation for detailed information. • Ensure that you install Windows® XP Service Pack 3 or later versions / Windows...
F2A55-M LK2 User's Manual
Page 41
... ASUS Update main screen appears. Follow the onscreen instructions to restore the BIOS in the future. Updating the BIOS To update the BIOS: 1. Copy the original motherboard BIOS using this utility. Quit all Windows® applications before you to launch the AI Suite II utility. From the list, select either through a network or an Internet Service Provider (ISP). • This utility is available in the support DVD that allows you update the BIOS using the ASUS Update utility. 2.1.1 ASUS Update utility...
... ASUS Update main screen appears. Follow the onscreen instructions to restore the BIOS in the future. Updating the BIOS To update the BIOS: 1. Copy the original motherboard BIOS using this utility. Quit all Windows® applications before you to launch the AI Suite II utility. From the list, select either through a network or an Internet Service Provider (ISP). • This utility is available in the support DVD that allows you update the BIOS using the ASUS Update utility. 2.1.1 ASUS Update utility...
F2A55-M LK2 User's Manual
Page 43
... down or reset the system while updating the BIOS! Recovering the BIOS To recover the BIOS: 1. 2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that contains the updated BIOS file. • Before using the motherboard support DVD or a USB flash drive that allows you to enter BIOS Setup to restore the BIOS file when it fails or gets corrupted during the updating process. The utility automatically checks the devices for F2A55-M LK2 PLUS). • The BIOS file in the support DVD may...
... down or reset the system while updating the BIOS! Recovering the BIOS To recover the BIOS: 1. 2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that contains the updated BIOS file. • Before using the motherboard support DVD or a USB flash drive that allows you to enter BIOS Setup to restore the BIOS file when it fails or gets corrupted during the updating process. The utility automatically checks the devices for F2A55-M LK2 PLUS). • The BIOS file in the support DVD may...
F2A55-M LK2 User's Manual
Page 44
... the motherboard support DVD and a USB flash drive formatted using defaults 3. Turn off the computer and disconnect all SATA hard disk drives (optional). Welcome to Drive D (USB flash drive). The succeeding utility screens are for reference only. Insert the support DVD into the optical drive and select the optical drive as shown. The actual utility screen displays may not be same as the boot device. NTFS is not supported under DOS environment. At the FreeDOS prompt, type d: and press to switch the disk...
... the motherboard support DVD and a USB flash drive formatted using defaults 3. Turn off the computer and disconnect all SATA hard disk drives (optional). Welcome to Drive D (USB flash drive). The succeeding utility screens are for reference only. Insert the support DVD into the optical drive and select the optical drive as shown. The actual utility screen displays may not be same as the boot device. NTFS is not supported under DOS environment. At the FreeDOS prompt, type d: and press to switch the disk...
F2A55-M LK2 User's Manual
Page 58
... Controller Interface). Board SATA RAID ROM [Legacy ROM] This item only appears when OnChip SATA Type is a monitor system. OnChip SATA Channel [Enabled] Enables or disables onboard channel SATA port. Status Check [Enabled] S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is set the SATA configuration. [IDE] Set to [IDE] when you want to use the Serial ATA hard disk drives as Parallel ATA physical storage devices. [RAID] Set to [RAID] when you want to create a RAID configuration from the SATA hard disk drives. [AHCI] Set to [AHCI] when you want the SATA hard disk...
... Controller Interface). Board SATA RAID ROM [Legacy ROM] This item only appears when OnChip SATA Type is a monitor system. OnChip SATA Channel [Enabled] Enables or disables onboard channel SATA port. Status Check [Enabled] S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is set the SATA configuration. [IDE] Set to [IDE] when you want to use the Serial ATA hard disk drives as Parallel ATA physical storage devices. [RAID] Set to [RAID] when you want to create a RAID configuration from the SATA hard disk drives. [AHCI] Set to [AHCI] when you want the SATA hard disk...
F2A55-M LK2 User's Manual
Page 59
... Port Control Allows you to enable/disable individual USB ports. 2.5.4 NB Configuration IGFX Multi-Monitor [Disabled] Enables or disables the Internal Graphics Device Multi-Monitor support for operating systems without an EHCI hand‑off [Disabled] [Enabled] Enables the support for add-on legacy operating systems (OS). [Disabled] The USB devices can be used only for the BIOS setup program. [Auto] Allows the system to detect the presence of Internal Graphics Device will keep memory reserved. Configuration options: [Disabled] [Enabled] Primary Video Device [PCIE / PCI Video...
... Port Control Allows you to enable/disable individual USB ports. 2.5.4 NB Configuration IGFX Multi-Monitor [Disabled] Enables or disables the Internal Graphics Device Multi-Monitor support for operating systems without an EHCI hand‑off [Disabled] [Enabled] Enables the support for add-on legacy operating systems (OS). [Disabled] The USB devices can be used only for the BIOS setup program. [Auto] Allows the system to detect the presence of Internal Graphics Device will keep memory reserved. Configuration options: [Disabled] [Enabled] Primary Video Device [PCIE / PCI Video...
F2A55-M LK2 User's Manual
Page 60
.... Configuration options: [Enabled] [Disabled] Change Settings [Auto] Allows you to legacy AC'97. SPDIF Out Type [SPDIF] [SPDIF] Sets to [SPDIF] for SPDIF audio output. [HDMI] Sets to [Enabled] and allows you set the serial port configuration. Configuration options: [Enabled] [Disabled] Serial Port Configuration The sub-items in this menu allow you to set the front panel audio connector (AAFP) mode to legacy AC'97 or highdefinition audio depending on the audio standard that the front panel audio module supports. [HD] Sets the front panel audio connector (AAFP) mode to high...
.... Configuration options: [Enabled] [Disabled] Change Settings [Auto] Allows you to legacy AC'97. SPDIF Out Type [SPDIF] [SPDIF] Sets to [SPDIF] for SPDIF audio output. [HDMI] Sets to [Enabled] and allows you set the serial port configuration. Configuration options: [Enabled] [Disabled] Serial Port Configuration The sub-items in this menu allow you to set the front panel audio connector (AAFP) mode to legacy AC'97 or highdefinition audio depending on the audio standard that the front panel audio module supports. [HD] Sets the front panel audio connector (AAFP) mode to high...
F2A55-M LK2 User's Manual
Page 66
... ASUS F2A55-M LK2 Series PS/2 Keyboard and Mouse Support [Auto] [Auto] For a faster BIOS POST time, PS/2 devices will only be available during POST. PS/2 devices will not be available and BIOS Setup program will not be accessible via PS/2 devices when the system is set to [Disabled] and allows you set of devices to display the post report. Set this item to [Enabled] to [Enabled]. 2.7.1 Fast Boot [Enabled] Enable or disable boot with keyboard and mouse connections will be detected. Network Stack Driver Support [Disabled] [Disabled] The BIOS...
... ASUS F2A55-M LK2 Series PS/2 Keyboard and Mouse Support [Auto] [Auto] For a faster BIOS POST time, PS/2 devices will only be available during POST. PS/2 devices will not be available and BIOS Setup program will not be accessible via PS/2 devices when the system is set to [Disabled] and allows you set of devices to display the post report. Set this item to [Enabled] to [Enabled]. 2.7.1 Fast Boot [Enabled] Enable or disable boot with keyboard and mouse connections will be detected. Network Stack Driver Support [Disabled] [Disabled] The BIOS...