F2A55-M LK2 User's Manual
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... used in the less-than and greater-than sign means that you must press two or more keys simultaneously, the key names are linked with a plus sign (+). viii DANGER/WARNING: Information to prevent injury to yourself when trying to emphasize a word or a phrase. Used to complete a task. Keys enclosed in this...
... used in the less-than and greater-than sign means that you must press two or more keys simultaneously, the key names are linked with a plus sign (+). viii DANGER/WARNING: Information to prevent injury to yourself when trying to emphasize a word or a phrase. Used to complete a task. Keys enclosed in this...
F2A55-M LK2 User's Manual
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... Internal I/O connectors / buttons / switches BIOS Support DVD Form factor ASUS DIGI+ VRM ASUS 3+2 Phase 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...
... Internal I/O connectors / buttons / switches BIOS Support DVD Form factor ASUS DIGI+ VRM ASUS 3+2 Phase 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...
F2A55-M LK2 User's Manual
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... SPDIF_OUTCOM1USBPW5-8 USB78 AAFP AMD® A55 SATA3G_1 SATA3G_2 SPEAKER CLRTC USB56 32Mb BIOS SATA3G_3 SATA3G_4 F_PANEL ASUS F2A55-M LK2 Series motherboard User Guide 2 x Serial ATA 3.0 Gb/s cables 1 x I/O Shield User Guide Support DVD • F2A55-M LK2 Series motherboards include F2A55-M LK2 PLUS and F2A55-M LK2 models. Package contents Check your retailer. • The illustrated items above items is damaged or missing...
... SPDIF_OUTCOM1USBPW5-8 USB78 AAFP AMD® A55 SATA3G_1 SATA3G_2 SPEAKER CLRTC USB56 32Mb BIOS SATA3G_3 SATA3G_4 F_PANEL ASUS F2A55-M LK2 Series motherboard User Guide 2 x Serial ATA 3.0 Gb/s cables 1 x I/O Shield User Guide Support DVD • F2A55-M LK2 Series motherboards include F2A55-M LK2 PLUS and F2A55-M LK2 models. Package contents Check your retailer. • The illustrated items above items is damaged or missing...
F2A55-M LK2 User's Manual
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...® A-series accelerated processor with an ACPI management function to provide efficient power management for advanced operating systems. 100% All High-quality Conductive Polymer Capacitors (F2A55-M LK2 PLUS only) This motherboard uses all high-quality conductive polymer capacitors for durability, improved lifespan, and enhanced thermal capacity. Dual-Channel DDR3 1866 / 1600 / 1333 / 1066... is enhanced with AMD® Radeon™ HD 7000 series graphics. It features Dualchannel DDR3 memory support and accelerates data transfer rate up to 5GT/s. ASUS F2A55-M LK2 Series 1-1
...® A-series accelerated processor with an ACPI management function to provide efficient power management for advanced operating systems. 100% All High-quality Conductive Polymer Capacitors (F2A55-M LK2 PLUS only) This motherboard uses all high-quality conductive polymer capacitors for durability, improved lifespan, and enhanced thermal capacity. Dual-Channel DDR3 1866 / 1600 / 1333 / 1066... is enhanced with AMD® Radeon™ HD 7000 series graphics. It features Dualchannel DDR3 memory support and accelerates data transfer rate up to 5GT/s. ASUS F2A55-M LK2 Series 1-1
F2A55-M LK2 User's Manual
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... soft-off the ATX power supply and detach its power cord. This is ON, in sleep mode, or in any component, switch off mode. SB_PWR F2A55-M LK2 PLUS ON OFF Standby Power Powered Off F2A55-M LK2 PLUS Onboard LED 1-4 Chapter 1: Product introduction
... soft-off the ATX power supply and detach its power cord. This is ON, in sleep mode, or in any component, switch off mode. SB_PWR F2A55-M LK2 PLUS ON OFF Standby Power Powered Off F2A55-M LK2 PLUS Onboard LED 1-4 Chapter 1: Product introduction
F2A55-M LK2 User's Manual
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The edge with external ports goes to the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis as indicated in the correct orientation. 1.3 Motherboard overview 1.3.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the image below. 1.3.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the rear part of the chassis. F2A55-M LK2 PLUS ASUS F2A55-M LK2 Series 1-5
The edge with external ports goes to the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis as indicated in the correct orientation. 1.3 Motherboard overview 1.3.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the image below. 1.3.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the rear part of the chassis. F2A55-M LK2 PLUS ASUS F2A55-M LK2 Series 1-5
F2A55-M LK2 User's Manual
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...) DDR3 DIMM_B1 (64bit, 240-pin module) VGA DVI 16 KBPWR USBPW1-4 SOCKET FM2 22.6cm(8.9in) 1 USB34 EATXPWR LAN1_USB12 AUDIO CHA_FAN F2A55-M LK2 PLUS RTL 8111F PCIEX16 PCIEX1_1 Lithium Cell CMOS Power SATA3G_1 AMD® A55 SATA3G_2 6 ALC887 Super I/O PCI1 32Mb BIOS SB_PWR SPDIF_OUTCOM1USBPW5-8 USB78 SPEAKER... CLRTC USB56 SATA3G_3 SATA3G_4 7 AAFP F_PANEL 15 14 13 12 11 1 10 98 7 1-6 Chapter 1: Product introduction 1.3.3 Motherboard layout F2A55-M LK2 Series motherboards include F2A55-M LK2 PLUS and F2A55-M LK2 models. The package contents vary from models.
...) DDR3 DIMM_B1 (64bit, 240-pin module) VGA DVI 16 KBPWR USBPW1-4 SOCKET FM2 22.6cm(8.9in) 1 USB34 EATXPWR LAN1_USB12 AUDIO CHA_FAN F2A55-M LK2 PLUS RTL 8111F PCIEX16 PCIEX1_1 Lithium Cell CMOS Power SATA3G_1 AMD® A55 SATA3G_2 6 ALC887 Super I/O PCI1 32Mb BIOS SB_PWR SPDIF_OUTCOM1USBPW5-8 USB78 SPEAKER... CLRTC USB56 SATA3G_3 SATA3G_4 7 AAFP F_PANEL 15 14 13 12 11 1 10 98 7 1-6 Chapter 1: Product introduction 1.3.3 Motherboard layout F2A55-M LK2 Series motherboards include F2A55-M LK2 PLUS and F2A55-M LK2 models. The package contents vary from models.
F2A55-M LK2 User's Manual
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AMD FM2 socket 4. DDR3 DIMM slots 6. Speaker connector (4-pin SPEAKER) 10. Chassis fan connector (3-pin CHA_FAN) 16. The APU fits in only one correct orientation. F2A55-M LK2 PLUS F2A55-M LK2 PLUS CPU socket FM2 ASUS F2A55-M LK2 Series 1-7 USB 2.0 connectors (10-1 pin USB56, USB78) 11. Ensure that you use a APU designed for AMD® A-series accelerated processors with AMD®...
AMD FM2 socket 4. DDR3 DIMM slots 6. Speaker connector (4-pin SPEAKER) 10. Chassis fan connector (3-pin CHA_FAN) 16. The APU fits in only one correct orientation. F2A55-M LK2 PLUS F2A55-M LK2 PLUS CPU socket FM2 ASUS F2A55-M LK2 Series 1-7 USB 2.0 connectors (10-1 pin USB56, USB78) 11. Ensure that you use a APU designed for AMD® A-series accelerated processors with AMD®...
F2A55-M LK2 User's Manual
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The figure illustrates the location of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 F2A55-M LK2 PLUS Channel Channel A Channel B F2A55-M LK2 PLUS 240-pin DDR3 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS F2A55-M LK2 Series 1-11 A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. 1.5 System memory 1.5.1 Overview This motherboard comes with less power consumption.
The figure illustrates the location of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 F2A55-M LK2 PLUS Channel Channel A Channel B F2A55-M LK2 PLUS 240-pin DDR3 DIMM sockets Sockets DIMM_A1 DIMM_B1 ASUS F2A55-M LK2 Series 1-11 A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. 1.5 System memory 1.5.1 Overview This motherboard comes with less power consumption.
F2A55-M LK2 User's Manual
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... failure! • If the steps above do not need to clear the RTC when the system hangs due to pins 2-3. ASUS F2A55-M LK2 Series 1-19 F2A55-M LK2 PLUS CLRTC 12 23 Normal (Default) Clear RTC F2A55-M LK2 PLUS Clear RTC RAM To erase the RTC RAM: 1. Except when clearing the RTC RAM, never remove the cap on pins 2-3 for...
... failure! • If the steps above do not need to clear the RTC when the system hangs due to pins 2-3. ASUS F2A55-M LK2 Series 1-19 F2A55-M LK2 PLUS CLRTC 12 23 Normal (Default) Clear RTC F2A55-M LK2 PLUS Clear RTC RAM To erase the RTC RAM: 1. Except when clearing the RTC RAM, never remove the cap on pins 2-3 for...
F2A55-M LK2 User's Manual
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...current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in reduced power mode). F2A55-M LK2 PLUS KBPWR 12 +5V (Default) 23 +5VSB F2A55-M LK2 PLUS Keyboard power setting 1-20 Chapter 1: Product introduction Keyboard power (3-pin KBPWR) This jumper allows you can wake up ...CPU, DRAM in slow refresh, power supply in sleep mode. 2. USBPW1-4 12 23 +5V +5VSB (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 the computer from S3 and S4 sleep modes (no power...
...current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in reduced power mode). F2A55-M LK2 PLUS KBPWR 12 +5V (Default) 23 +5VSB F2A55-M LK2 PLUS Keyboard power setting 1-20 Chapter 1: Product introduction Keyboard power (3-pin KBPWR) This jumper allows you can wake up ...CPU, DRAM in slow refresh, power supply in sleep mode. 2. USBPW1-4 12 23 +5V +5VSB (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 the computer from S3 and S4 sleep modes (no power...
F2A55-M LK2 User's Manual
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... The CPU_FAN connector supports a CPU fan of the connector. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND F2A55-M LK2 PLUS CHA_FAN Rotation +12V GND F2A55-M LK2 PLUS Fan connectors DO NOT forget to connect the fan cables to the fan connectors. These two 4-pin Universal Serial Bus (USB...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 Insufficient air flow inside the system may damage the motherboard components. These two 4-pin Universal...
... The CPU_FAN connector supports a CPU fan of the connector. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND F2A55-M LK2 PLUS CHA_FAN Rotation +12V GND F2A55-M LK2 PLUS Fan connectors DO NOT forget to connect the fan cables to the fan connectors. These two 4-pin Universal Serial Bus (USB...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 Insufficient air flow inside the system may damage the motherboard components. These two 4-pin Universal...
F2A55-M LK2 User's Manual
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...that the 20-pin power plug can provide at http://support.asus. Otherwise, the system will not boot up. • We recommend that you intend to connect the 4-pin ATX +12V power plug. ATX12V EATXPWR +12V DC +12V DC F2A55-M LK2 PLUS GND GND +3 Volts +12 Volts +12 Volts +5V ...PIN 1 +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN 1 GND +5 Volts +5 Volts +5 Volts -5 Volts GND GND GND PSON# GND -12 Volts +3 Volts F2A55-M LK2 PLUS ATX power connectors • We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices or when you...
...that the 20-pin power plug can provide at http://support.asus. Otherwise, the system will not boot up. • We recommend that you intend to connect the 4-pin ATX +12V power plug. ATX12V EATXPWR +12V DC +12V DC F2A55-M LK2 PLUS GND GND +3 Volts +12 Volts +12 Volts +5V ...PIN 1 +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN 1 GND +5 Volts +5 Volts +5 Volts -5 Volts GND GND GND PSON# GND -12 Volts +3 Volts F2A55-M LK2 PLUS ATX power connectors • We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices or when you...
F2A55-M LK2 User's Manual
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... RSATA_TXN1 RSATA_TXP1 GND GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXN2 RSATA_RXP2 GND GND RSATA_TXP3 RSATA_TXN3 GND RSATA_RXN3 RSATA_RXP3 GND GND RSATA_TXP4 RSATA_TXN4 GND RSATA_RXN4 RSATA_RXP4 GND F2A55-M LK2 PLUS SATA3G_3 SATA3G_4 F2A55-M LK2 PLUS SATA 3.0Gb/s connectors • These connectors are for the Serial ATA 3.0 Gb/s signal cables for Serial ATA hard disk drives and optical disc drives...
... RSATA_TXN1 RSATA_TXP1 GND GND RSATA_TXP2 RSATA_TXN2 GND RSATA_RXN2 RSATA_RXP2 GND GND RSATA_TXP3 RSATA_TXN3 GND RSATA_RXN3 RSATA_RXP3 GND GND RSATA_TXP4 RSATA_TXN4 GND RSATA_RXN4 RSATA_RXP4 GND F2A55-M LK2 PLUS SATA3G_3 SATA3G_4 F2A55-M LK2 PLUS SATA 3.0Gb/s connectors • These connectors are for the Serial ATA 3.0 Gb/s signal cables for Serial ATA hard disk drives and optical disc drives...
F2A55-M LK2 User's Manual
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F_PANEL PWR LED PWR BTN PIN 1 F2A55-M LK2 PLUS HD_LED RESET F2A55-M LK2 PLUS System panel connector • System power LED (2-pin PLED) This 2-pin connector is for system reboot without turning off button (2-pin PWRBTN...to this connector. Speaker connector (4-pin SPEAKER) The 4-pin connector is for the chassis-mounted system warning speaker. SPEAKER F2A55-M LK2 PLUS PIN 1 F2A55-M LK2 PLUS Speaker Out Connector +5V GND GND Speaker Out ASUS F2A55-M LK2 Series 1-25 Ground Reset 4. PLED+ PLEDPWR GND HD_LED+ HD_LED- Connect the HDD Activity LED cable to this connector.
F_PANEL PWR LED PWR BTN PIN 1 F2A55-M LK2 PLUS HD_LED RESET F2A55-M LK2 PLUS System panel connector • System power LED (2-pin PLED) This 2-pin connector is for system reboot without turning off button (2-pin PWRBTN...to this connector. Speaker connector (4-pin SPEAKER) The 4-pin connector is for the chassis-mounted system warning speaker. SPEAKER F2A55-M LK2 PLUS PIN 1 F2A55-M LK2 PLUS Speaker Out Connector +5V GND GND Speaker Out ASUS F2A55-M LK2 Series 1-25 Ground Reset 4. PLED+ PLEDPWR GND HD_LED+ HD_LED- Connect the HDD Activity LED cable to this connector.
F2A55-M LK2 User's Manual
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... audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND F2A55-M LK2 PLUS SPDIF_OUT F2A55-M LK2 PLUS Digital audio connector The S/PDIF module is for details. • The front panel audio I /O module that you connect a... 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L F2A55-M LK2 PLUS HD-audio-compliant Legacy AC'97 pin definition compliant definition F2A55-M LK2 PLUS Front panel audio connector • We recommend that supports either High Definition Audio or AC`97 ...
... audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND F2A55-M LK2 PLUS SPDIF_OUT F2A55-M LK2 PLUS Digital audio connector The S/PDIF module is for details. • The front panel audio I /O module that you connect a... 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L F2A55-M LK2 PLUS HD-audio-compliant Legacy AC'97 pin definition compliant definition F2A55-M LK2 PLUS Front panel audio connector • We recommend that supports either High Definition Audio or AC`97 ...
F2A55-M LK2 User's Manual
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... the motherboard! 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 Never connect a 1394 cable to 480Mbps connection speed. Connect the serial port...of the system chassis. COM1 CTS DSR DTR RXD RI PIN 1 RTS GND TXD DCD F2A55-M LK2 PLUS F2A55-M LK2 PLUS Serial port (COM1) connector The COM module is purchased separately. 9. ASUS F2A55-M LK2 Series 1-27 These USB connectors comply with USB 2.0 specification that supports up to the ...
... the motherboard! 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 Never connect a 1394 cable to 480Mbps connection speed. Connect the serial port...of the system chassis. COM1 CTS DSR DTR RXD RI PIN 1 RTS GND TXD DCD F2A55-M LK2 PLUS F2A55-M LK2 PLUS Serial port (COM1) connector The COM module is purchased separately. 9. ASUS F2A55-M LK2 Series 1-27 These USB connectors comply with USB 2.0 specification that supports up to the ...
F2A55-M LK2 User's Manual
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...restore the BIOS file when it fails or gets corrupted during the updating process. When found, the utility reads the BIOS file and enters ASUS EZ Flash 2 utility automatically. 4. Doing so can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive ...BIOS file in the support DVD may not be the latest version. The utility automatically checks the devices for F2A55-M LK2 PLUS). • The BIOS file in the removable device into F2A5MLK2.CAP (for F2A55-M LK2) or F2A5MK2P.CAP (for the BIOS file. Insert the support DVD to the USB port. 3. Chapter...
...restore the BIOS file when it fails or gets corrupted during the updating process. When found, the utility reads the BIOS file and enters ASUS EZ Flash 2 utility automatically. 4. Doing so can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive ...BIOS file in the support DVD may not be the latest version. The utility automatically checks the devices for F2A55-M LK2 PLUS). • The BIOS file in the removable device into F2A5MLK2.CAP (for F2A55-M LK2) or F2A5MK2P.CAP (for the BIOS file. Insert the support DVD to the USB port. 3. Chapter...
F2A55-M LK2 User's Manual
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... to update BIOS? BIOS Updater checks the selected BIOS file and prompts you sure to section 2.9 Exit menu for DOS V1.30 Current ROM BOARD: F2A55-M LK2 PLUS VER: 0201 DATE: 07/13/2012 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ A: F2A5MKP2.CAP 8390656 2012-07-13 17:30:48 Note...
... to update BIOS? BIOS Updater checks the selected BIOS file and prompts you sure to section 2.9 Exit menu for DOS V1.30 Current ROM BOARD: F2A55-M LK2 PLUS VER: 0201 DATE: 07/13/2012 Update ROM BOARD: Unknown VER: Unknown DATE: Unknown PATH: A:\ A: F2A5MKP2.CAP 8390656 2012-07-13 17:30:48 Note...