F2A55-M LK2 User's Manual
Page 3
Contents Safety information...vi About this guide...vii F2A55-M LK2 Series specifications summary ix Package contents...xi Product introduction 1.1 Special features 1-1 1.1.1 Product highlights 1-1 1.1.2 ASUS DIGI+ VRM 1-2 1.1.3 ASUS Exclusive Features 1-2 1.2 Before you proceed 1-4 1.3 Motherboard overview 1-5 1.3.1 Placement direction 1-5 1.3.2 Screw holes 1-5 1.3.3 Motherboard layout 1-6 1.3.4 Layout contents 1-7 1.4 Accelerated Processing Unit (APU 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...
Contents Safety information...vi About this guide...vii F2A55-M LK2 Series specifications summary ix Package contents...xi Product introduction 1.1 Special features 1-1 1.1.1 Product highlights 1-1 1.1.2 ASUS DIGI+ VRM 1-2 1.1.3 ASUS Exclusive Features 1-2 1.2 Before you proceed 1-4 1.3 Motherboard overview 1-5 1.3.1 Placement direction 1-5 1.3.2 Screw holes 1-5 1.3.3 Motherboard layout 1-6 1.3.4 Layout contents 1-7 1.4 Accelerated Processing Unit (APU 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...
F2A55-M LK2 User's Manual
Page 6
... company. • If the power supply is set to the correct voltage in any damage, contact your retailer. Operation safety • Before installing the motherboard and adding devices on a stable surface. • If you add a device. • Before connecting or removing signal cables from the... motherboard, ensure that the power cables for the devices are unplugged before using the product, ensure all cables are correctly connected and the power cables...
... company. • If the power supply is set to the correct voltage in any damage, contact your retailer. Operation safety • Before installing the motherboard and adding devices on a stable surface. • If you add a device. • Before connecting or removing signal cables from the... motherboard, ensure that the power cables for the devices are unplugged before using the product, ensure all cables are correctly connected and the power cables...
F2A55-M LK2 User's Manual
Page 7
...have been added by your dealer. These documents are also provided. Detailed descriptions of the BIOS parameters are not part of the motherboard and the new technology it supports. • Chapter 2: BIOS information This chapter tells how to the following parts: •... 1: Product introduction This chapter describes the features of the standard package. Refer to the ASUS contact information. 2. vii ASUS websites The ASUS website provides updated information on ASUS hardware and software products. About this guide is organized This guide contains the following sources for...
...have been added by your dealer. These documents are also provided. Detailed descriptions of the BIOS parameters are not part of the motherboard and the new technology it supports. • Chapter 2: BIOS information This chapter tells how to the following parts: •... 1: Product introduction This chapter describes the features of the standard package. Refer to the ASUS contact information. 2. vii ASUS websites The ASUS website provides updated information on ASUS hardware and software products. About this guide is organized This guide contains the following sources for...
F2A55-M LK2 User's Manual
Page 11
... SB_PWR 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. Actual product specifications may vary with different models. xi The package contents vary from models. •...
... SB_PWR 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. Actual product specifications may vary with different models. xi The package contents vary from models. •...
F2A55-M LK2 User's Manual
Page 13
...ASUS F2A55-M LK2 Series 1-1 Product introduction 1 1.1 Special features 1.1.1 Product highlights AMD® A-series accelerated processors with AMD® Radeon™ HD 7000 series graphics This motherboard supports AMD® 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...
...ASUS F2A55-M LK2 Series 1-1 Product introduction 1 1.1 Special features 1.1.1 Product highlights AMD® A-series accelerated processors with AMD® Radeon™ HD 7000 series graphics This motherboard supports AMD® 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...
F2A55-M LK2 User's Manual
Page 14
...Modules) digital power design. Engineered and tested to multimedia or office work and heavy multitasking. 1.1.2 ASUS DIGI+ VRM DIGI+POWER CONTROL: Digital Power Design for the APU* ASUS motherboards using user-defined profiles. It offers you to automatically connect to set, monitor, and schedule the... priorities for your network programs. It allows you with difficult POST situations. ASUS Anti-Surge Protection This special design protects expensive devices and the motherboard from damage caused by world-renowned ASUS quality, it easier for you to manage your bandwidth and allows you to...
...Modules) digital power design. Engineered and tested to multimedia or office work and heavy multitasking. 1.1.2 ASUS DIGI+ VRM DIGI+POWER CONTROL: Digital Power Design for the APU* ASUS motherboards using user-defined profiles. It offers you to automatically connect to set, monitor, and schedule the... priorities for your network programs. It allows you with difficult POST situations. ASUS Anti-Surge Protection This special design protects expensive devices and the motherboard from damage caused by world-renowned ASUS quality, it easier for you to manage your bandwidth and allows you to...
F2A55-M LK2 User's Manual
Page 15
... reduce carbon footprint of the product and thus mitigate environmental impacts. ASUS MyLogo2™ Turn your favorite photos into 256-color boot logos to energy consumptions. ASUS F2A55-M LK2 Series 1-3 ErP ready The motherboard is in regards to personalize your system. AI Suite II With... its user interface, ASUS AI Suite II integrates several ASUS utilities and allows you to update the BIOS without using...
... reduce carbon footprint of the product and thus mitigate environmental impacts. ASUS MyLogo2™ Turn your favorite photos into 256-color boot logos to energy consumptions. ASUS F2A55-M LK2 Series 1-3 ErP ready The motherboard is in regards to personalize your system. AI Suite II With... its user interface, ASUS AI Suite II integrates several ASUS utilities and allows you to update the BIOS without using...
F2A55-M LK2 User's Manual
Page 16
... or remove any motherboard component. SB_PWR F2A55-M LK2 PLUS ON OFF Standby Power Powered Off F2A55-M LK2 PLUS Onboard LED 1-4 Chapter 1: Product introduction Failure to do so may cause severe damage to indicate that the system is a reminder that lights up to the motherboard, peripherals, or components... any component, switch off mode. The illustration below shows the location 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 ...
... or remove any motherboard component. SB_PWR F2A55-M LK2 PLUS ON OFF Standby Power Powered Off F2A55-M LK2 PLUS Onboard LED 1-4 Chapter 1: Product introduction Failure to do so may cause severe damage to indicate that the system is a reminder that lights up to the motherboard, peripherals, or components... any component, switch off mode. The illustration below shows the location 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 ...
F2A55-M LK2 User's Manual
Page 17
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 chassis. The edge with external ports goes to the rear part of the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard. F2A55-M LK2 PLUS ASUS F2A55-M LK2 Series 1-5
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 chassis. The edge with external ports goes to the rear part of the chassis. DO NOT overtighten the screws! Doing so can damage the motherboard. F2A55-M LK2 PLUS ASUS F2A55-M LK2 Series 1-5
F2A55-M LK2 User's Manual
Page 18
... 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 The package contents vary from models. 1.3.3 Motherboard layout F2A55-M LK2 Series motherboards include F2A55-M LK2 PLUS and F2A55-M LK2 models...
... 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 The package contents vary from models. 1.3.3 Motherboard layout F2A55-M LK2 Series motherboards include F2A55-M LK2 PLUS and F2A55-M LK2 models...
F2A55-M LK2 User's Manual
Page 19
...-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 1-28 1-28 1-27 1-27 1-4 1-23 1-21 1.4 Accelerated Processing Unit (APU) This motherboard comes with an FM2 socket designed for the FM2 socket. DO NOT force the APU into the socket to prevent bending the pins and damaging... power (3-pin KBPWR) 2. SATA 3.0Gb/s connectors (7-pin SATA3G_1~4) 7. System panel connector (10-1 pin F_PANEL) 9. Chassis fan connector (3-pin CHA_FAN) 16. Clear RTC RAM (3-pin CLRTC) 8. F2A55-M LK2 PLUS F2A55-M LK2 PLUS CPU socket FM2 ASUS F2A55-M LK2 Series 1-7
...-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 1-28 1-28 1-27 1-27 1-4 1-23 1-21 1.4 Accelerated Processing Unit (APU) This motherboard comes with an FM2 socket designed for the FM2 socket. DO NOT force the APU into the socket to prevent bending the pins and damaging... power (3-pin KBPWR) 2. SATA 3.0Gb/s connectors (7-pin SATA3G_1~4) 7. System panel connector (10-1 pin F_PANEL) 9. Chassis fan connector (3-pin CHA_FAN) 16. Clear RTC RAM (3-pin CLRTC) 8. F2A55-M LK2 PLUS F2A55-M LK2 PLUS CPU socket FM2 ASUS F2A55-M LK2 Series 1-7
F2A55-M LK2 User's Manual
Page 23
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. 1.5 System memory 1.5.1 Overview This motherboard comes with less power consumption. DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.
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. 1.5 System memory 1.5.1 Overview This motherboard comes with less power consumption. DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets.
F2A55-M LK2 User's Manual
Page 24
... that you want to install 4GB or more efficient memory cooling system to support a full memory load (2 DIMMs) or overclocking condition. F2A55-M LK2 Series Motherboard Qualified Vendors Lists (QVL) DDR3 1866 MHz capability Vendors Part No. G.SKILL F3-14900CL9D-8GBXL(XMP) 8GB(2 x 4GB) DS -... which is the standard way of the lower-sized channel for better overclocking capability. • Always install DIMMs with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in Channel A and Channel B. G.SKILL F3-14900CL10Q2-64GBZLD(XMP1.3) 64GB(8GB x...
... that you want to install 4GB or more efficient memory cooling system to support a full memory load (2 DIMMs) or overclocking condition. F2A55-M LK2 Series Motherboard Qualified Vendors Lists (QVL) DDR3 1866 MHz capability Vendors Part No. G.SKILL F3-14900CL9D-8GBXL(XMP) 8GB(2 x 4GB) DS -... which is the standard way of the lower-sized channel for better overclocking capability. • Always install DIMMs with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in Channel A and Channel B. G.SKILL F3-14900CL10Q2-64GBZLD(XMP1.3) 64GB(8GB x...
F2A55-M LK2 User's Manual
Page 29
...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 x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications. 1.6 Expansion slots In ..., you physical injury and damage motherboard components. 1.6.1 Installing an expansion card To install an expansion card: 1. Unplug the power cord before adding or removing expansion cards. Remove the bracket opposite the slot that they support. Turn on the slot. 5. ASUS F2A55-M LK2 Series 1-17 Assign an IRQ...
...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 x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications. 1.6 Expansion slots In ..., you physical injury and damage motherboard components. 1.6.1 Installing an expansion card To install an expansion card: 1. Unplug the power cord before adding or removing expansion cards. Remove the bracket opposite the slot that they support. Turn on the slot. 5. ASUS F2A55-M LK2 Series 1-17 Assign an IRQ...
F2A55-M LK2 User's Manual
Page 30
IRQ assignments for this motherboard A B C D E F G H PCIEx16_1 - - shared - - - - - PCIEx1_1 shared - - - - - - - Realtek LAN controller - SATA controller - - - shared - - - - - 1-18 Chapter 1: Product introduction PCI1 slot - - - - HD audio shared - - - - - - - shared - - - - - - On Chip USB EHCI 1/2/3/4 - - On Chip USB EHCI 1/2/3 - shared - - - shared - - - - - - shared - - - -
IRQ assignments for this motherboard A B C D E F G H PCIEx16_1 - - shared - - - - - PCIEx1_1 shared - - - - - - - Realtek LAN controller - SATA controller - - - shared - - - - - 1-18 Chapter 1: Product introduction PCI1 slot - - - - HD audio shared - - - - - - - shared - - - - - - On Chip USB EHCI 1/2/3/4 - - On Chip USB EHCI 1/2/3 - shared - - - shared - - - - - - shared - - - -
F2A55-M LK2 User's Manual
Page 34
...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...The CPU_FAN connector supports a CPU fan of the connector. Insufficient air flow inside the system may damage the motherboard components. Video Graphics Adapter (VGA) port. These two 4-pin Universal Serial Bus (USB) ports are ...2.0 ports 1 and 2. This port is for USB 2.0/1.1 devices. 7. 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....
...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...The CPU_FAN connector supports a CPU fan of the connector. Insufficient air flow inside the system may damage the motherboard components. Video Graphics Adapter (VGA) port. These two 4-pin Universal Serial Bus (USB) ports are ...2.0 ports 1 and 2. This port is for USB 2.0/1.1 devices. 7. 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....
F2A55-M LK2 User's Manual
Page 38
Connect one end of the motherboard high-definition audio capability. • If you want to connect a high definition front panel audio module to this connector. See section 2.5.5 Onboard Devices Configuration for a ... or AC`97 audio standard. Digital 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 cable to this connector, set the Front Panel Type...
Connect one end of the motherboard high-definition audio capability. • If you want to connect a high definition front panel audio module to this connector. See section 2.5.5 Onboard Devices Configuration for a ... or AC`97 audio standard. Digital 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 cable to this connector, set the Front Panel Type...
F2A55-M LK2 User's Manual
Page 39
... the back of the system chassis. Doing so will damage the motherboard! USB 2.0 connectors (10-1 pin USB56, USB78) These connectors are for a serial (COM) port. The USB 2.0 module is purchased separately. ASUS F2A55-M LK2 Series 1-27 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. COM1 CTS DSR DTR RXD RI PIN 1 RTS GND TXD DCD F2A55-M LK2 PLUS F2A55-M LK2 PLUS Serial port (...
... the back of the system chassis. Doing so will damage the motherboard! USB 2.0 connectors (10-1 pin USB56, USB78) These connectors are for a serial (COM) port. The USB 2.0 module is purchased separately. ASUS F2A55-M LK2 Series 1-27 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. COM1 CTS DSR DTR RXD RI PIN 1 RTS GND TXD DCD F2A55-M LK2 PLUS F2A55-M LK2 PLUS Serial port (...
F2A55-M LK2 User's Manual
Page 40
To run the DVD. 1-28 Chapter 1: Product introduction Click an icon to display Support DVD/motherboard information Click an item to install If Autorun is for reference only. Refer to change at www.asus.com for better compatibility and system stability. • BIOS and drivers updates are subject to your computer, ... Contact tabs to run the Support DVD Place the Support DVD into the optical drive. The contents of the Support DVD to avail all motherboard features. Visit the ASUS website at any time without notice. The following screen is NOT enabled on your hardware. •...
To run the DVD. 1-28 Chapter 1: Product introduction Click an icon to display Support DVD/motherboard information Click an item to install If Autorun is for reference only. Refer to change at www.asus.com for better compatibility and system stability. • BIOS and drivers updates are subject to your computer, ... Contact tabs to run the Support DVD Place the Support DVD into the optical drive. The contents of the Support DVD to avail all motherboard features. Visit the ASUS website at any time without notice. The following screen is NOT enabled on your hardware. •...