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Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
Contents Notices ......................vi Safety information ..................vii About this guide ..................viii P5KPL/1600 specifications summary ............x Chapter 1: Product introduction Welcome! ..................1-2 Package contents ................. 1-2 Special features ................1-3 1.3.1 Product highlights ............1-3 1.3.2 Innovative ASUS features ..........1-4 Before you proceed ..............
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Chapter 2: BIOS setup Managing and updating your BIOS ..........2-2 2.1.1 Creating a bootable floppy disk ........2-2 2.1.2 ASUS EZ Flash 2 utility ........... 2-4 2.1.3 AFUDOS utility ..............2-5 2.1.4 ASUS CrashFree BIOS 3 utility ........2-7 2.1.5...
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2.6.2 Boot Settings Configuration .......... 2-34 2.6.3 Security ................. 2-35 Tools menu ................. 2-37 2.7.1 ASUS EZ Flash 2 ............2-37 2.7.2 Express Gate ..............2-38 Exit menu ..................2-39 Chapter 3: Software support Installing an operating system ........... 3-2 Support CD information ..............
Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference, and • This device must accept any interference received including interference that may cause undesired operation.
Safety information Electrical safety • To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. • When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected.
Refer to the following sources for additional information and for product and software updates. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.
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Conventions used in this guide To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual. DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task.
® Series CPU Supports Intel next generation 45nm multi-core CPU Intel Hyper-Threading Technology ready Supports Enhanced Intel SpeedStep Technology (EIST) ® Refer to www.asus.com for Intel CPU support list Chipset Northbridge: Intel ® Southbridge: Intel ICH7 ® Front Side Bus 1600 (O.C)* / 1333 / 1066 / 800 MHz...
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P5KPL/1600 specifications summary Rear panel 1 x PS/2 Mouse port 1 x PS/2 Keyboard port 1 x LPT port 1 x COM port 1 x Optical S/PDIF outport 1 x LAN (RJ-45) port 4 x USB 2.0 / 1.1 ports...
® The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below.
*Support max. 2 DIMMs when over-clock to DDR2-1066 8-channel high definition audio Enjoy high-quality sound system on your PC! The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia) CODEC enables high-quality audio output, jack-detect feature automatically. ASUS P5KPL/1600...
1.3.2 Innovative ASUS features ASUS CrashFree BIOS3 The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data from a USB flash disk containing the BIOS file. See page 2-7 for details. ASUS Q-Fan technology The ASUS Q-Fan technology smartly adjusts the fan speeds according to the system loading to ensure quiet, cool, and efficient operation.
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Green ASUS This motherboard and its packaging comply with the European Union’s Restriction on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision of creating environment-friendly and recyclable products/packaging to safeguard consumers’ health while minimizing the impact on the environment.
Screw holes Place six (6) screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so can damage the motherboard. Place this side towards the rear of the chassis ASUS P5KPL/1600...
ASUS will shoulder the cost of repair only if the damage is shipment/transit-related. • Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA775 socket.
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Lift the load lever in the direction of the arrow to a 135º angle. 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 remove (B). Load plate ASUS P5KPL/1600 1-11...
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Position the CPU over Alignment key the socket, making sure that the gold triangle is on the bottom-left corner of the socket. The socket alignment key should fit into the CPU notch. CPU notch Gold triangle mark The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU! Close the load plate (A), then push the load lever (B) until it...
CPU fan connector. Motherboard hole Fastener Narrow end of the groove Ensure to orient each fastener with the narrow end of the groove pointing outward. (The photo shows the groove shaded for emphasis.) ASUS P5KPL/1600 1-13...
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Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN. CPU_FAN P5KPL/1600 CPU Fan Connector Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector. 1-14...
Rotate each fastener counterclockwise. Pull up two fasteners at a time in a diagonal sequence to disengage the heatsink and fan assembly from the motherboard. Carefully remove the heatsink and fan assembly from the motherboard. ASUS P5KPL/1600 1-15...
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Rotate each fastener clockwise to ensure correct orientation when reinstalling. Narrow end of the groove The narrow end of the groove should point outward after resetting. (The photo shows the groove shaded for emphasis.) Refer to the documentation in the boxed or stand-alone CPU fan package for detailed information on CPU fan installation.
1.7.1 Overview The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. The figure illustrates the location of the DDR2 DIMM sockets: P5KPL/1600 240-pin DDR2 DIMM Sockets Channel Sockets Channel A DIMM_A1 and DIMM_A2...
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B*: Supports one pair of modules inserted as one pair of Dual-channel memory configuration • C* : Supports four single-sided modules inserted into both the yellow and black slots as two pairs of Dual-channel memory configuration. Visit the ASUS website for the latest DDR2-667/800/1066MHz QVL. 1-20 Chapter 1: Product Introduction...
DIMM. Support the DIMM lightly with your fingers when pressing the retaining clips. The DIMM might get damaged when it flips DDR2 DIMM notch out with extra force. Remove the DIMM from the socket. ASUS P5KPL/1600 1-21...
Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. Make sure to unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components.
1.8.4 PCI slots The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. The figure shows a LAN card installed on a PCI slot. 1.8.5 PCI Express x16 slot This motherboard supports PCI Express x16 graphic cards that comply with the PCI Express specifications.
You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values. ASUS P5KPL/1600 1-25...
1.10 Connectors 1.10.1 Rear panel connectors PS/2 mouse port (green). This port is for a PS/2 mouse. Parallel port. This 25-pin port connects a parallel printer, a scanner, or other devices. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
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12. Serial port. This port connects a modem, or other devices that conform with serial specification. Optical S/PDIF Output This port connect an external audio output device via an optical S/PDIF cable. 14. PS/2 keyboard port (purple). This port is for a PS/2 keyboard. ASUS P5KPL/1600 1-27...
Floppy Disk Drive Connector P5KPL/1600 Optical drive audio in connector (4-pin CD) This connector allows you to receive stereo audio input from sound sources such as a CD-ROM, TV tuner, or MPEG card. (black) P5KPL/1600 Internal Audio Connector 1-28 Chapter 1: Product Introduction...
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Serial ATA connectors (7-pin SATA1 [red], SATA2 [black], SATA3 [red], SATA4 [black]) These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives. RSATA_RXN2 RSATA_RXN4 RSATA_RXN3 RSATA_RXN1 RSATA_RXP2 RSATA_RXP4 RSATA_RXP3 RSATA_RXP1 RSATA_TXP2 RSATA_TXP4 RSATA_TXP3 RSATA_TXP1 RSATA_TXN2 RSATA_TXN4 RSATA_TXN3 RSATA_TXN1 P5KPL/1600 SATA Connectors ASUS P5KPL/1600 1-29...
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This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port(s). Connect the S/PDIF module cable to this connector, then install the module to a slot opening at the back of the system chassis. SPDIF_OUT P5KPL/1600 Digital Audio Connector • The S/PDIF module is purchased separately. •...
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HD-audio-compliant Legacy AC’97 compliant definition pin definition P5KPL/1600 Front Panel Audio Connector We recommend that you connect a high-definition front panel audio module to this connector to avail the motherboard high-definition audio capability. USB port connectors (10-1 pin USB56, USB78) These connectors are for USB 2.0 ports.
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CPU_FAN CHA_FAN PWR_FAN P5KPL/1600 Fan Connectors Only the CPU_FAN connector support the ASUS Q-Fan feature. Chassis intrusion connector (4-1 pin CHASSIS) This connector is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector.
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SPEAKER PLED Reset +IDE_LED PWRSW P5KPL/1600 System Panel Connector • System power LED This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
This chapter tells how to change the system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided. BIOS setup ASUS P5KPL/1600...
The following utilities allow you to manage and update the motherboard Basic Input/Output System (BIOS) setup. ASUS EZ Flash 2: Updates the BIOS in DOS mode using a floppy disk or a USB flash disk. ASUS AFUDOS: Updates the BIOS in DOS mode using a bootable floppy disk.
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Right-click Floppy Disk Drive then click Format to display the Format 3 1/2 Floppy dialog box. d. Select the Create an MS-DOS startup disk check box. e. Click Start. Copy the original or the latest motherboard BIOS file to the bootable floppy disk. ASUS P5KPL/1600...
2.1.2 ASUS EZ Flash 2 utility The ASUS EZ Flash 2 feature allows you to update the BIOS without having to go through the long process of booting from a floppy disk and using a DOS-based utility. The EZ Flash 2 utility is built-in the BIOS chip so it is accessible by pressing <Alt>...
Extension name Press <Enter>. The utility copies the current BIOS file to the floppy disk. A:\>afudos /oOLDBIOS1.rom AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB)) Copyright (C) 2002 American Megatrends, Inc. All rights reserved. Reading flash ..done Write to file..ok A:\>...
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Updating the BIOS file To update the BIOS file using the AFUDOS utility: Visit the ASUS website (www.asus.com) and download the latest BIOS file for the motherboard. Save the BIOS file to a bootable floppy disk. Write the BIOS filename on a piece of paper. You need to type the exact BIOS filename at the DOS prompt.
2.1.4 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process. You can update a corrupted BIOS file using the motherboard support CD , the floppy disk or the USB flash disk that contains the updated BIOS file.
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Restart the system after the utility completes the updating process. • Only the USB flash disk with FAT 32/16 format and single partition can support ASUS CrashFree BIOS 3. The device size should be smaller than 8GB. • DO NOT shut down or reset the system while updating the BIOS! Doing so...
2.1.5 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows® environment. The ASUS Update utility allows you • Save the current BIOS file • Download the latest BIOS file from the Internet •...
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Updating the BIOS through the Internet To update the BIOS through the Internet: Launch the ASUS Update utility from the Windows® desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update main window appears. Select Update BIOS from...
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Updating the BIOS through a BIOS file To update the BIOS through a BIOS file: Launch the ASUS Update utility from the Windows® desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update main window appears.
The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen. • Visit the ASUS website (www.asus.com) to download the latest BIOS file for this motherboard. 2-12...
At the bottom right corner of a menu screen are the navigation keys for that particular menu. Use the navigation keys to select items in the menu and change the settings. Some of the navigation keys differ from one screen to another. ASUS P5KPL/1600 2-13...
2.2.4 Menu items The highlighted item on the menu bar BIOS SETUP UTILITY Main Advanced Power Boot Tools Exit displays the specific items for that menu. Use [ENTER], [TAB] System Time [19:34:30] or [SHIFT-TAB] to For example, selecting Main shows the System Date [Mon 11/19/2007] select a field.
Allows you to set the system date. 2.3.3 Legacy Diskette A [1.44M, 3.5 in.] Sets the type of floppy drive installed. Configuration options: [Disabled] [360K, 5.25 in.] [1.2M, 5.25 in.] [720K, 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.] ASUS P5KPL/1600 2-15...
2.3.4 Primary IDE Master/Slave, SATA 1~4 While entering Setup, the BIOS automatically detects the presence of IDE devices. There is a separate sub-menu for each IDE device. Select a device item then press <Enter> to display the IDE device information. Primary IDE Master Select the type of device connected to the...
(4) ATA devices to be used simultaneously: two PATA devices and two SATA devices. [Enhanced] - Sets all SATA devices to operate in SATA mode. Enhanced Mode Support On [S-ATA] Set Serial ATA, Parallel ATA or both as native mode. [S-ATA] [S-ATA+P-ATA] [P-ATA]. ASUS P5KPL/1600 2-17...
IDE Detect Time Out (Sec) [35] Selects the time out value for detecting ATA/ATAPI devices. Configuration options: [0] [5] [10] [15] [20] [25] [30] [35] 2.3.6 System Information This menu gives you an overview of the general system specifications. The BIOS automatically detects the items in this menu.
Select either one of the preset overclocking configuration options: Manual - allows you to individually set overclocking parameters. Auto - loads the optimal settings for the system. Overclock Profile - loads overclocking profiles with optimal parameters for stability when overclocking. ASUS P5KPL/1600 2-19...
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The following item appears only when you set the AI Overclocking item to [Manual]. CPU Frequency [xxx] Displays the frequency sent by the clock generator to the system bus and PCI bus. The value of this item is auto-detected by the BIOS. Use the <+> and <-> keys to adjust the CPU frequency.
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Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. Memory Over Voltage [Auto] Allows you to adjust Memory Over voltage and each step is 10mV ASUS P5KPL/1600 2-21...
2.4.2 AI NET 2 Check Realtek LAN AI NET 2 cable during POST. Pair Status Length It will take 3 to 10 seconds to diagnose LAN cable. Check Realtek LAN cable [Disabled] Select Screen Select Item Change Option General Help Save and Exit Exit Check Realtek LAN cable [Disabled]...
If no USB device is detected, the legacy USB support is disabled. Configuration options: [Disabled] [Enabled] [Auto] USB 2.0 Controller Mode [HiSpeed] Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed (12 Mbps). Configuration options: [FullSpeed] [HiSpeed] ASUS P5KPL/1600 2-23...
2.4.4 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects. BIOS SETUP UTILITY Advanced Configure advanced CPU settings Sets the ratio between Module Version: 3D.06 CPU Core Clock and the FSB Frequency. NOTE: If an invalid Manufacturer: Intel ratio is set in CMOS Brand String: Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz...
The Chipset menu allows you to change the advanced chipset settings. Select an item then press <Enter> to display the sub-menu. Configure North Bridge Advanced Chipset Settings features. WARNING: Setting wrong values in below sections may cause system to malfunction. North Bridge Configuration South Bridge Configuration ASUS P5KPL/1600 2-25...
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North Bridge Configuration ENABLE: Allow North Bridge Chipset Configuration remapping of overlapped PCI memory Memory Remap Feature [Disabled] above the total Configure DRAM Timing by SPD [Enabled] physical memory. Initiate Graphic Adapter [PEG/PCI] DISABLE: Do not allow remapping of memory. Memory Remap Feature [Disabled] Allows you to enable or disable the remapping of overlapped PCI memory above the total physical memory.
Appears only when the Parallel Port Mode is set to [ECP]. This item allows you to set the Parallel Port ECP DMA. Configuration options: [DMA0] [DMA1] [DMA3] Parallel Port IRQ [IRQ7] Allows you to select parallel port IRQ. Configuration options: [IRQ5] [IRQ7] ASUS P5KPL/1600 2-27...
2.4.7 PCI PnP The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices. The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA devices, and setting the memory size block for legacy ISA devices.
(default). In S3 sleep state, the system appears to be off and consumes less power than in the S1 state. When signaled by a wake-up device or event, the system resumes to its working state exactly where it was left off. [Auto] - Detected by OS. ASUS P5KPL/1600 2-29...
2.5.2 ACPI 2.0 Support [Disabled] Allows you to add more tables for Advanced Configuration and Power Interface (ACPI) 2.0 specifications. Configuration options: [Disabled] [Enabled] 2.5.3 ACPI APIC Support [Enabled] Allows you to enable or disable the Advanced Configuration and Power Interface (ACPI) support in the Application-Specific Integrated Circuit (ASIC).
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When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled] ASUS P5KPL/1600 2-31...
2.5.5 Hardware Monitor BIOS SETUP UTILITY Power Hardware Monitor CPU Temperature CPU Temperature [23ºC/73ºF] MB Temperature [30ºC/86ºF] CPU Fan Speed [4891RPM] CPU Q-Fan Control [Disabled] Chassis Fan Speed [N/A] Power Fan Speed [N/A] VCORE Voltage [1.344V] Select Screen 3.3V Voltage [3.152V] Select Item 5V Voltage...
Select Item The number of device items that appears on the screen depends on the number of Enter Go to Sub-screen General Help devices installed in the system. Configuration options: [xx Drive] [Disabled] Save and Exit Exit ASUS P5KPL/1600 2-33...
This allows you to enable or disable the full screen logo display feature. Configuration options: [Disabled] [Enabled] Set this item to [Enabled] to use the ASUS MyLogo2™ feature. AddOn ROM Display Mode Allows you to set display mode for Option ROM Bootup Num-Lock [On] Allows you to select the power-on state for the NumLock.
<Enter>. The message “Password uninstalled” appears. If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock (RTC) RAM. See section “1.9 Jumpers” for information on how to erase the RTC RAM. ASUS P5KPL/1600 2-35...
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After you have set a supervisor password, the other items appear to allow you to change other security settings. <Enter> to change Security Settings password. <Enter> again to Supervisor Password : Installed disabled password. User Password : Installed Change Supervisor Password User Access Level [Full Access] Change User Password...
2.7.1 ASUS EZ Flash 2 Allows you to run ASUS EZ Flash 2. When you press <Enter>, a confirmation message appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to confirm your choice. See section 2.1.2 for details.
2.7.2 Express Gate [Enabled] Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate feature is a unique instant-on environment that provides quick access to the Internet browser and Skype. Configuration options: [Enabled] [Disabled] Enter OS Timer [10 Seconds] Sets countdown duration that the system waits at the Express Gate’s first screen...
Setup menus. When you select this option or if you press <F5>, a confirmation window appears. Select OK to load default values. Select Exit & Save Changes or make other changes before saving the values to the non-volatile RAM. ASUS P5KPL/1600 2-39...
The contents of the support CD are subject to change at any time without notice. Visit the ASUS website(www.asus.com) for updates. 3.2.1 Running the support CD Place the support CD to the optical drive. The CD automatically displays the Drivers menu if Autorun is enabled in your computer.
The drivers menu shows the available device drivers if the system detects installed devices. Install the necessary drivers to activate the devices. ASUS InstAll-Drivers Installation Wizard Installs the ASUS InstAll-Drivers Installation Wizard. Intel Chipset Inf Update Program Installs the Intel chipset Inf update program.
Installs all of the utilities through the Installation Wizard. ASUS Update The ASUS Update utility allows you to update the motherboard BIOS in a Windows® environment. This utility requires an Internet connection either through a network or an Internet Service Provider (ISP).
3.2.4 ASUS Contact information Click the Contact tab to display the ASUS contact information. You can also find this information on the inside front cover of this user guide. ASUS P5KPL/1600...
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ASUS Express Gate ASUS Express Gate is an instant-on environment that gives you quick access to the Internet. Within a few seconds of powering on your computer, you will be at the Express Gate menu where you can start the web browser, Skype, or other Express Gate softwares.
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The very first time you enter the Express Gate environment (by launching either web or Skype from the first screen), a first time wizard will guide you through basic Express Gate configurations. Basic configurations include language, date and time and screen resolution. ASUS P5KPL/1600...
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Once inside the Express Gate environment, click on the icons on the LaunchBar, by default at bottom of the screen, to launch or switch between softwares. You can re-arrange, re-size and move windows. Bring a window to the foreground by clicking within it or by clicking on its corresponding software icon.
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Express Gate to finish clearing the settings. This is also useful in the rare case where settings might become corrupted. The first-time Wizard will run again when you enter the Express Gate environment after clearing its settings. ASUS P5KPL/1600...
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USB drive. If a USB device is detected, the icon contains a green arrow. ASUS Express Gate supports file uploading from SATA HDDs, ODDs and USB drive and downloading to USB drives only. Shows network status; click to configure network.
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Click to choose input language and method as well as keyboard shortcuts (Ctrl-Space by default). Click to change LaunchBar options (auto-hide, docking position, etc). Click to show the “ASUS Utility” panel. Click to show “About Express Gate ”. Click to open Express Gate Help.
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Open Network. Network Make the proper network configurations. Each network interface is enabled immediately when you check the box next to it. • If you use a network cable connected to a home router (which is then connected to your DSL/cable modem), enable both LAN1 and LAN2. Express Gate will automatically use whichever port (LAN1 or LAN2) is connected.
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Shows user- created image album(s) I m a g e control bar ASUS Express Gate supports HDDs connected to motherboard chipset- controlled onboard SATA ports only. All onboard extended SATA ports and external SATA ports are NOT supported. ASUS P5KPL/1600 3-13...
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Express Gate software will be released regularly, adding refinements or new applications. You can find original version of the software on the support DVD or download new versions from the ASUS support website. To update Express Gate Double-click the Express Gate setup file to start software update.
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The Appendix describes the CPU features and technologies that the motherboard supports. CPU features...
32-bit operating systems. • The motherboard comes with a BIOS file that supports EM64T. You can download the latest BIOS file from the ASUS website (www.asus.com/support/download/) if you need to update the BIOS file. See Chapter 2 for details.
Click Apply, then click OK. 10. Close the Display Properties window. After you adjust the power scheme, the CPU internal frequency slightly decreases when the CPU loading is low. The screen displays and procedures may vary depending on the operating system. ASUS P5KPL/1600...
Intel Hyper-Threading Technology ® • The motherboard supports Intel Pentium 4 LGA775 processors with ® ® Hyper-Threading Technology. • Hyper-Threading Technology is supported under Windows XP and Linux ® 2.4.x (kernel) and later versions only. Under Linux, use the Hyper- Threading compiler to compile the code.
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