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Asus P5LD2 SE CPU Lock Free, CrashFree BIOS, ASUS Q-Fantechnology, ASUS MyLogo2™, See pages 4‑33 and 4-34for details

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CPU Lock Free

This feature allows you to adjust the CPU multiplier to 14x. Setting the appropriate BIOS setting automatically reduces the CPU multiplier value for more flexibility when increasing external FSB. See page 4-23 for details.

CrashFree BI OS 2

This feature allows you to restore the original BIOS data from the support CD in case the BIOS codes and data are corrupted. This protection eliminates the need to buy a replacement ROM chip. See page 4-5 for details.

ASUS Q-Fan technol ogy

The ASUS Q-Fan technology smartly adjusts the fan speeds according to the system loading to ensure quiet, cool, and efficient operation.

See pages 4‑33 and 4-34 for details.

ASUS MyLogo2™

This new feature present in the motherboard allows you to personalize and add style to your system with customizable boot logos. See page 5-8 for details.

1-20	Chapter 1: Product introduction

Contents

Page E2377 Revised Edition December Chapter 1:Product introduction Chapter 2:Hardware information Chapter 3:Powering up Chapter 4:BIOS setup Chapter 5:Software support Appendix:CPU features Page FederalCommunications Commission Statement Canadian Department of Communications Statement Electricalsafety Operation safety How this guide is organized Where to find more information Conventions used in this guide Typography P5LD2 SE specifications summary Chipset Front Side Bus Memory Expansion slots Other ASUS SpecialFeatures Back PanelI/O Ports InternalI/O Connectors Page Chapter summary 1.1Welcome Thank you for buying an ASUS® P5LD2 SEmotherboard 1.2Package contents Check your motherboard package for the following items Motherboard 1.3.1 Product highlights Latest processor technology Intel® Dual -Core Technology CPU support Intel® EM64T Enhanced IntelSpeedStep® Technology (EIST) DDR2 memory support SerialATA technology PCIExpress™ interface SoundMAX DigitalAudio System S/PDIFdigitalsound ready USB 2.0 technology Gigabit LAN solution Temperature, fan, and voltage monitoring 1.3.2 ASUS AILifestyle features AIQuiet AIOverclocking ASUS W iFi CPU Lock Free CrashFree BIOS ASUS Q-Fantechnology ASUS MyLogo2™ Hardware2 information Page Onboard LED 2.2.1 Placement direction 2.2.2 Screw holes 2.2.3 Motherboard layout Wireless Edition 2.2.4 Layout contents System power LED (Green 3-pinPLED) Hard disk drive activity LED (Red 2-pinIDE_LED) System warning speaker (Orange 4-pinSPEAKER) ATX power button/soft-offbutton (Yellow 2-pinPWRSW) Reset button (Blue 2-pinRESET) 2.3.1 Installing the CPU 3.Lift the load lever in the direction of the arrow to a 135º angle 4.Lift the load plate with your thumb and forefinger to a 100º angle (A), then push the PnP cap from the load plate window to 6. Close the load plate (A), then push the load lever (B) until it snaps into the retention tab 2.3.2 Installing the CPU heatsink and fan Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN P5LD2 SE CPU Fan Connectors 2.3.3 Uninstalling the CPU heatsink and fan Rotate each fastener clockwise to ensure correct orientation when reinstalling 2.4.1 Overview 2.4.2 Memory configurations Qualified Vendors Lists (QVL) DDR2-533 DDR2-667 DDR2-800 2.4.3 Installing a DIMM 2.4.4 Removing a DIMM 2.5.1 Installing an expansion card 2.5.2 Configuring an expansion card 2.5.3Interrupt assignments Standard interrupt assignments IRQ assignments for this motherboard 2.5.4 PCIslots 2.5.5 PCIExpress x16 slot 2.5.6 PCIExpress x1 slots 2.6Jumpers 1. Clear RTC RAM (CLRTC) To erase the RTC RAM: 1.Turn OFF the computer and unplug the power cord 2.Remove the onboard battery 2. USB device wake-upjumpers (3-pin USBPW12, USBPW34, USBPW56, USBPW78) P5LD2 SE USB Device Wake Up USBPW34 USBPW12 USBPW78 2.7.1 Rear panelconnectors LAN port LED indications Wireless LAN LED indications Audio 2, 4, or 6-channelconfiguration 2.7.2 Internalconnectors SATA1 SATA4 SATA2 SATA3 P5LD2 SE SATA Connectors Importantnote on SerialATA 4. Opticaldrive audio connector (4-pin CD) P5LD2 SE Internal Audio Connector 5. Front panelaudio connector (10-1pin AAFP) P5LD2 SE Analog Front Panel Connector 6. USB port connectors (10-1pin USB56, USB78) P5LD2 SE USB 2.0 Connectors 7. GAME/MIDIport connector (16-1pin GAME) P5LD2 SE Game Connector GAME 8. CPU, Chassis, and Power Fan connectors (4-pinCPU_FAN, 3-pin CHA_FAN1, PWR_FAN) P5LD2 SE Fan Connectors PWR_FAN CHA_FAN1 10. ATX power connectors (24-pin EATXPW, 4-pinATX12V) P5LD2 SE ATX Power Connectors 11. System panelconnector (20-1pin PANEL) This connector supports several chassis-mountedfunctions P5LD2 SE System Panel Connector •System power LED(Green 3-pinPLED) •Harddisk drive activity LED(Red 2-pin IDE_LED) Page Page Page AMIBIOS beep codes 3.2.1 Using the OS shut down function 3.2.2 Using the dualfunction power switch Page Managing and updating your BIOS 4.1.1 Creating a bootable floppy disk 4.1.2 AFUDOS utility Copying the current BIOS Updating the BIOS file 4.The utility verifies the file and starts updating the BIOS 4.1.3 ASUS CrashFree BIOS 2 utility Recovering the BIOS from a floppy disk Recovering the BIOS from the support CD 4.1.4 ASUS EZ Flash utility 4.1.5 ASUS Update utility Installing ASUS Update Updating the BIOS through the Internet Updating the BIOS through a BIOS file 4.2BIOS setup program •The default BIOS settings for this motherboard apply to most 4.2.1 BIOS menu screen 4.2.2 Menu bar 4.2.3 Navigation keys 4.2.4 Menu items 4.2.5 Sub-menu items 4.2.6 Configuration fields 4.2.7 Pop-upwindow 4.2.8 Scrollbar 4.3.1 System Time [xx:xx:xx] 4.3.2 System Date [Day xx/xx/xxxx] 4.3.3 Legacy Diskette A [1.44M, 3.5 in.] 4.3.4 Primary, Third and Fourth IDEMaster/Slave Type [Auto] LBA/Large Mode [Auto] Block (Multi -sector Transfer) [Auto] PIO Mode [4] 4.3.5 IDEConfiguration Configure SATA As [Standard IDE] Onboard IDEOperate Mode [Enhanced Mode] ALPEand ASP [Disabled] IDEDetect Time Out [35] 4.3.6 System Information AMIBIOS Processor System Memory 4.4.1 JumperFree Configuration AIOverclocking [Auto] CPU Frequency [XXX] FSB/CPUExternalFrequency Synchronization DRAM Frequency [Auto] Available DRAM frequency options invarious FSBsettings PCIExpress Frequency [Auto] Memory Voltage [Auto] CPU VCore Voltage [Auto] FSB Termination Voltage [Auto] MCHChipset Voltage [Auto] ICHChipset Voltage [Auto] 4.4.2 USB Configuration USB Function [Enabled] Legacy USB Support [Auto] USB 2.0 Controller [Enabled] USB 2.0 Controller Mode [HiSpeed] 4.4.3 CPU Configuration Ratio CMOS Setting [18] VID CMOS Setting [62] CPU Lock Free [Auto] Microcode Updation [Enabled] Max CPUID Value Limit [Disabled] Execute Disable Function [Disabled] Enhanced C1 Control[Auto] CPU InternalThermalControl[Auto] H yper-Threading Technology [Enabled] 4.4.4 Chipset Configure DRAM Timing by SPD [Enabled] Hyper Path 3 [Auto] DRAM Throttling Threshold [Auto] Boot Graphic Adapter Priority [PCIExpress/PCI] PEG Buffer Length [Auto] Link Latency [Auto] 4.4.5 Onboard Devices Configuration HD Audio Controller [Enabled] OnBoard PCIEX GbELAN [Enabled] SerialPort1 Address [3F8/IRQ4] ParallelPort Address [378] 4.4.6 PCIPnP Plug And Play O/S [No] PCILatency Timer [64] Allocate IRQ to PCIVGA [Yes] Palette Snooping [Disabled] I RQ-xxassigned to [PCIDevice] 4.5.1 Suspend Mode [Auto] 4.5.2 Repost Video on S3 Resume [No] 4.5.3 ACPI2.0 Support [No] 4.5.4 ACPIAPIC Support [Enabled] 4.5.5 APM Configuration Power Button Mode [On/Off] Restore on AC Power Loss [Power Off] Power On By RTC Alarm [Disabled] Power On By ExternalModems [Disabled] Power On By PCIDevices [Disabled] Power On By PCIEDevices [Disabled] Power On By PS/2 Keyboard [Disabled] Power On By PS/2 Mouse [Disabled] 4.5.6 Hardware Monitor AIQuiet [Disabled] CPU Temperature [xx.xºC/xx.xºF] MB Temperature [xx.xºC/xx.xºF] CPU Fan Speed (RPM) [xxxxRPM]or [N/A] CPU Q-FanControl[Disabled] Chassis Fan1 Speed (RPM) [xxxxRPM]or [N/A] Chassis Q-Fan1control[Disabled] Power Fan Speed (RPM) [xxxxRPM]or [N/A] 4.6.1 Boot Device Priority 1st ~xxth Boot Device [1st Floppy Drive] 4.6.2 Boot Settings Configuration Quick Boot [Enabled] FullScreen Logo [Enabled] Add On ROM Display Mode [Force BIOS] Bootup Num-Lock [On] 4.6.3 Security Change Supervisor Password User Access Level[FullAccess] Change User Password Clear User Password Password Check [Setup] Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults Page Page 5.2.1 Running the support CD 5.2.2 Drivers menu IntelChipset Drivers ADIAudio Driver Realtek Lan Driver 5.2.3 Utilities menu ASUS PC Probe ASUS Update ASUS Screen Saver ADOBEAcrobat Reader 5.2.4 Manuals menu IntelLGA775 CPU InstallUser’s Manual 5.2.5 ASUS Contact information 5.2.6 Other information Motherboard Info Browse this CD Technicalsupport Form Filelist 5.3.1 ASUS MyLogo2™ Adjust the boot image to your desired size by selecting a value on the Ratio 9.When the screen returns to the ASUS Update utility, flash the original BIOS to load the new boot logo 5.3.2 Audio configurations Audio preferences Listening environment options Microphone features that the motherboard supports Page Using the Intel® EM64T feature A.2.1 System requirements A.2.2 Using the EIST Using the H yper-Threading Technology