Asus F2A55-M LK2 PLUS User Manual

MotherboardF2A55-M LK2 Series• F2A55-M LK2 • F2A55-M LK2 PLUS

xF2A55-M LK Series specications summarySpecications are subject to change without notice.ASUS unique featuresASUS DIGI+ VRMASUS 3+2 Phase Power Desi

xiPackage contentsCheck your motherboard package for the following items.F2A55-M LK2 PLUSPCIEX16PCIEX1_1PCI1SPDIF_OUTALC887AAFPCPU_FANCHA_FANLithium C

xii

1.1 Special features1.1.1 Product highlightsAMD® A-series accelerated processors with AMD® Radeon™ HD 7000 series graphics This motherboard supports

1.1.2 ASUS DIGI+ VRMDIGI+POWER CONTROL: Digital Power Design for the APU*ASUS motherboards using the AMD® A55 chipset employ precise digital voltage

AI Suite IIWith its user interface, ASUS AI Suite II integrates several ASUS utilities and allows you to launch and operate these utilities simultaneo

1.2 Before you proceedTake note of the following precautions before you install motherboard components or change any motherboard settings.• Unplug t

F2A55-M LK2 PLUS1.3 Motherboard overview1.3.1 Placement directionWhen installing the motherboard, ensure that you place it into the chassis in the c

1.3.3 Motherboard layoutF2A55-M LK2 PLUSKBPWRPCIEX16PCIEX1_1PCI1SPDIF_OUTALC887AAFPCPU_FANCHA_FANLithium CellCMOS PowerSuperI/OAUDIODIGI+VRMRTL8111FK

1.4 Accelerated Processing Unit (APU)This motherboard comes with an FM2 socket designed for AMD® A-series accelerated processors with AMD® Radeon™ HD

iiE7838First EditionOctober 2012Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and software

1.4.1 APU installation1432Chapter 1: Product introduction1-8

1253 41.4.2 APU heatsink and fan assembly installationApply the Thermal Interface Material to the APU heatsink and APU before you install the heatsin

To uninstall the APU heatsink and fan assembly53142Chapter 1: Product introduction1-10

1.5 System memory1.5.1 OverviewThis motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A DDR3 module ha

1.5.2 Memory congurationsYou may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets.• You may install varying memor

DDR3 1600 MHz capability Vendors Part No. SizeSS/DSChip BrandChip NO. Timing VoltageDIMM socket support (Optional)1 DIMM 2 DIMMsA-DATA AM2U16BC2P1 2GB

DDR3 1333 MHz capability Vendors Part No. SizeSS/DSChip Brand Chip NO. Timing VoltageDIMM socket support (Optional)1 DIMM 2 DIMMsA-DATA AD3U1333C2G9 2

Side(s): SS - Single-sided DS - Double-sidedDIMM support:• 1 DIMM: Supports one module inserted into any slot as Single-channel memory congurati

1.5.3 Installing a DIMM123To remove a DIMMBAChapter 1: Product introduction1-16

1.6 Expansion slotsIn the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that

iiiContentsSafety information ... viAbout this guid

IRQ assignments for this motherboardA B C D E F G HPCIEx16_1 – – shared – – – – –PCIEx1_1 shared – – – – – – –PCI1 slot – – – – shared – – –Realtek LA

1.7 Jumpers1. Clear RTC RAM (CLRTC)This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, ti

2. USB device wake-up (3-pin USBPW1-4, 3-pin USBPW5-8)Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshe

1.8 Connectors1.8.1 Rear panel ports1. PS/2 Mouse port (green). This port is for a PS/2 mouse.2. LAN (RJ-45) port. This port allows Gigabit connec

6. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices.7. USB 2.0 ports 3 and 4. These two 4-pin Uni

2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)These connectors are for an ATX power supply. The plugs from the power supply are designed to 

3. Serial ATA 3.0 Gb/s connectors (7-pin SATA3G 1~4)These connectors are for the Serial ATA 3.0 Gb/s signal cables for Serial ATA hard disk drives an

4. System panel connector (10-1 pin PANEL)This connector supports several chassis-mounted functions.• System power LED (2-pin PLED)This 2-pin connec

6. Digital audio connector (4-1 pin SPDIF_OUT)This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.The S/PDIF module is p

8. USB 2.0 connectors (10-1 pin USB56, USB78)These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then in

ivBIOS information2.1 Managing and updating your BIOS ... 2-12.1.1 ASUS Update utility ...

1.9 Software support1.9.1 Installing an operating systemThis motherboard supports Windows® XP / Vista / Windows® 7 / Windows® 8 Operating Systems (O

Chapter 2: BIOS information 2-12.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk in case you nee

2-2 ASUS F2A55-M LK2 SeriesUpdating from the Internet a. Select Update BIOS from the Internet, then click Next. b. Select the ASUS FTP site neares

Chapter 2: BIOS information 2-32.1.3 ASUS CrashFree BIOS 3 utilityThe ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the B

2-4 ASUS F2A55-M LK2 SeriesWelcome to FreeDOS (http://www.freedos.org)!C:\>d:D:\>3. When the Make Disk menu appears, select the FreeDOS comman

Chapter 2: BIOS information 2-5Updating the BIOS leTo update the BIOS le using BIOS Updater1. At the FreeDOS prompt, type bupdater /pc /g and press

2-6 ASUS F2A55-M LK2 SeriesUsing the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from a running operat

Chapter 2: BIOS information 2-7EZ ModeBy default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overvi

2-8 ASUS F2A55-M LK2 SeriesAdvanced ModeThe Advanced Mode provides advanced options for experienced end-users to congure the BIOS settings. The gure

Chapter 2: BIOS information 2-9Menu itemsThe highlighted item on the menu bar displays the specic items for that menu. For example, selecting Main sh

v2.7 Boot menu ... 2-252.7.1 Fast Boot [Enabled] ...

2-10 ASUS F2A55-M LK2 Series2.3 Main menuThe Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provi

Chapter 2: BIOS information 2-11Administrator PasswordIf you have set an administrator password, we recommend that you enter the administrator passwor

2-12 ASUS F2A55-M LK2 Series2.4 Ai Tweaker menuThe Ai Tweaker menu items allow you to congure overclocking-related items.Be cautious when changing t

Chapter 2: BIOS information 2-13Target CPU Speed : xxxxMHzDisplays the current CPU speed.Target DRAM Speed : xxxxMHzDisplays the current DRAM speed.2.

2-14 ASUS F2A55-M LK2 Series2.4.6 DRAM Timing ControlThe sub-items in this menu allow you to set the DRAM timing control features. Use the <+>

Chapter 2: BIOS information 2-152.4.11 DIGI+ VRMCPU Load Line Calibration [Auto]Load-line Calibration is dened by AMD VRM specications and affects

2-16 ASUS F2A55-M LK2 SeriesCPU Power Duty Control [T.Probe][T.Probe] Maintains the VRM thermal balance.[Extreme] Maintains the VRM current balance.

Chapter 2: BIOS information 2-17Be cautious when changing the settings of the Advanced menu items. Incorrect eld values can cause the system to malfu

2-18 ASUS F2A55-M LK2 Series2.5.2 SATA CongurationWhile entering Setup, the BIOS automatically detects the presence of SATA devices. The SATA Port i

Chapter 2: BIOS information 2-192.5.3 USB CongurationThe items in this menu allow you to change the USB-related features.The USB Devices item shows

viSafety informationElectrical safetyTo prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the s

2-20 ASUS F2A55-M LK2 Series2.5.5 Onboard Devices CongurationHD Audio Device [Enabled][Enabled] Enables the High Denition Audio Controller.[Disabl

Chapter 2: BIOS information 2-212.5.6 APMRestore AC Power Loss [Power Off][Power On] The system goes into on state after an AC power loss.[Power Off

2-22 ASUS F2A55-M LK2 Series2.5.7 Network StackNetwork Stack [Disable Link]This item allows user to disable or enable the UEFI network stack. Congur

Chapter 2: BIOS information 2-232.6 Monitor menuThe Monitor menu displays the system temperature/power status, and allows you to change the fan setti

2-24 ASUS F2A55-M LK2 SeriesFan Profile [Standard]This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appro

Chapter 2: BIOS information 2-252.7 Boot menuThe Boot menu items allow you to change the system boot options.Scroll down to display the following ite

2-26 ASUS F2A55-M LK2 Series2.7.1 Fast Boot [Enabled]Enable or disable boot with initialization of a minimal set of devices to launch active boot opt

Chapter 2: BIOS information 2-272.7.3 Post Delay Time [3 sec]Allows you to set the POST Report wait time. This conguration only functions in Normal

2-28 ASUS F2A55-M LK2 Series2.7.9 Secure BootThis option allows you to congure the Secure Boot related parameters.OS Type [Other OS]Conguration opt

Chapter 2: BIOS information 2-29DB ManagementLoad DB from FileConguration options: [OK]Copy DB to FileConguration options: [OK] Delete the DBCongur

viiAbout this guideThis user guide contains the information you need when installing and conguring the motherboard.How this guide is organizedThis gu

2-30 ASUS F2A55-M LK2 Series2.8 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Ent

Chapter 2: BIOS information 2-312.9 Exit menuThe Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard

2-32 ASUS F2A55-M LK2 Series

ASUS F2A55-M LK2 SeriesA-1AppendicesNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is

A-2AppendicesCanadian Department of Communications StatementThis digital apparatus does not exceed the Class B limits for radio noise emissions from d

ASUS F2A55-M LK2 SeriesA-3ASUS contact informationASUSTeK COMPUTER INC.Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259Telephone +886-2-2894

A-4AppendicesEC Declaration of Conformity We, the undersigned, Manufacturer: ASUSTeK COMPUTER INC. Address, City: 4F, No. 150, LI-TE Rd., PEITOU, TAIP

viiiConventions used in this guideTo ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.DA

ix(continued on the next page)F2A55-M LK2 Series specications summaryAPU AMD Socket FM2 A-series/Athlon™ Series ProcessorsAMD® Turbo Core Technology