Page 2
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.
How this guide is organized ..........viii Conventions used in this guide ..........ix Where to find more information ..........ix ASUS contact information ..............x Chapter 1: Product introduction ......... 1-1 1.1 Welcome! ................1-1 1.2 Package contents ............... 1-1 1.3 Overview ................
Page 4
Contents 2.6.4 AGP slot ............... 2-15 2.6.5 CNR slot ............... 2-16 2.7 Jumpers ................2-17 2.8 Connectors ............... 2-20 Chapter 3: Powering up ............3-1 3.1 Starting up for the first time ..........3-1 3.3 Powering off the computer ........... 3-2 Chapter 4: BIOS setup ............
Page 5
Contents 5.2.5 DOS Utilities menu ..........5-6 5.2.6 ASUS Contact Information ........5-6 5.2.7 Other information ............ 5-7 5.3 Software information ............5-9 5.3.1 ASUS Update ............5-9 Glossary ................G-1 Index ..................I-1...
FCC/CDC statements Federal Communications Commission Statement This device complies with FCC Rules Part 15. 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.
How this guide is organized This manual contains the following parts: • Chapter 1: Product introduction This chapter describes the features of the P4B-FX motherboard. It includes brief descriptions of the special attributes of the motherboard and the new technology it supports. •...
1. ASUS Websites The ASUS websites worldwide provide updated information on ASUS hardware and software products. The ASUS websites are listed in the ASUS contact information on page x. 2. Optional Documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.
Desktop/Server (Tel): +886-2-2890-7123 (English) Support Fax: +886-2-2890-7698 Support Email: tsd@asus.com.tw Web Site: www.asus.com.tw Newsgroup: cscnews.asus.com.tw ASUS COMPUTER INTERNATIONAL (America) Address: 6737 Mowry Avenue, Mowry Business Center, Building 2, Newark, CA 94560, USA General Fax: +1-510-608-4555 General Email: tmd1@asus.com Technical Support...
Chapter 1 This chapter describes the features of the P4B-FX motherboard. It includes brief explanations of the special attributes of the motherboard and the new technology it supports. Product introduction...
AGP 4X slot, high-speed data transfers using the ATA100 protocol, and AC ‘97-compliant audio features, the P4B-FX is your perfect vehicle to get ahead in the world of power computing! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below.
Overview Before you install the P4B-FX motherboard, take some time to familiarize yourself with its physical configuration and available features. This will facilitate the motherboard installation and future upgrades. A sufficient knowledge of the motherboard specifications will also help you avoid mistakes that may damage the board and its components.
Page 15
ICH2 integrates I/O functions such as system bus interface, Ultra ATA/100, Low Pin Count (LPC) interface, Universal Serial Bus (USB) 1.1 interface, PCI interface, and CNR interface. ASUS ASIC. This chip performs multiple system functions that include hardware and system voltage monitoring, IRQ routing, among others.
Page 16
Flash EEPROM. This 2Mb firmware contains the programmable BIOS program. CNR slot. This slot is specifically designed for the Communications and Networking Riser (CNR) card. The CNR supports V.90 analog modem, six-channel audio, HPNA, USB Hub, and 10BASE-T/ 100BASE-TX Ethernet networking. LAN controller.
This module should fit the retention mechanism that comes with a boxed CPU. You do not have to remove the retention module base when installing the CPU or installing other motherboard components. Retention Module Base Figure 1-2 Pre-installed Heatsink Retention Module Base ASUS P4B-FX motherboard user guide...
Special features Latest processor technology The P4B-FX motherboard supports the latest Intel Pentium 4 478/ Northwood Processor, also known as P4, via a 478-pin surface mount ZIF socket. The Pentium 4 processor utilizes the advanced 0.18 micron processor core in FC-PGA2 package for a 2.0GHz frequency, while the Northwood processor uses the 0.13 micron processor core with 512KB L2...
Chapter 2 This chapter describes the hardware setup procedures that you have to perform when installing system components. It includes details on the switches, jumpers, and connectors on the motherboard. Hardware information...
Motherboard installation Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it. The P4B-FX uses the Flex-ATX form factor that measures 9.6 inches x 7.5 inches, a standard fit for most chassis.
Hub (MCH) Audio Codec Accelerated Graphics Port (AGP) Super MIC2 HPHONE Intel I/O Controller PCI1 (ICH2) CLRTC P 4 B - F X PCI2 ASUS ASIC LAN_EN 2Mbit USB2 CNR_SLOT PANEL Firmware IR_CN IDELED SYSTEM AUD_EN1 USBPWR23 CHASIS Figure 2-2...
5. Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard, peripherals, and/or components. ASUS P4B-FX motherboard user guide...
Central Processing Unit (CPU) 2.4.1 Overview The motherboard comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket. This socket is specifically designed for the Intel ® Pentium 4 478/Northwood Processor. ® The Intel Pentium 4 Processor in the 478-pin package uses the Flip-Chip Pin Grid Array 2 (FC-PGA2) package technology, and includes the Intel ®...
90°-100° angle. Socket Lever 90 - 100 Figure 2-5 CPU Socket Lever at 90° -100° Angle Make sure that the socket lever is lifted up to 90°-100° angle, otherwise the CPU does not fit in completely. ASUS P4B-FX motherboard user guide...
Page 26
3. Position the CPU above the socket such that its marked corner matches the base of the socket lever. 4. Carefully insert the CPU into the socket until it fits in place. The CPU fits only in one correct orientation. DO NOT force the CPU into the socket to prevent bending the pins and damaging the CPU! Gold Mark Figure 2-6...
Your boxed Intel Pentium 4 478/Northwood Processor package should come with installation instructions for the CPU, heatsink, and the retention mechanism. If the instructions in this section do not match the CPU documentation, follow the latter. ASUS P4B-FX motherboard user guide...
Page 28
2. Position the fan with the retention mechanism on top of the heatsink. Align and snap the four hooks of the retention mechanism to the holes on each corner of the module base. Make sure that the fan and retention mechanism assembly perfectly fits the heatsink and module base, otherwise you cannot snap the hooks into the holes.
2.4.4 Connecting the CPU fan cable When the fan, heatsink, and the retention mechanism are in place, connect the CPU fan cable to the connector on the motherboard labeled CPUFAN. CPU Fan Connector (CPUFAN) Figure 2-11 CPU Fan Connector ASUS P4B-FX motherboard user guide...
ECC or non-ECC PC133 DIMMs. 88 Pins 60 Pins P4B-FX 20 Pins P4B-FX 168-Pin DIMM Sockets Lock Figure 2-12 DIMM Sockets Location and SDR DIMMs DIMMs are keyed with notches so that they fit in only one direction. DO NOT force a DIMM into a socket to avoid damaging the DIMM.
3. Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated. Unlocked Retaining Clip Figure 2-13 Installing a DIMM Locked Retaining Clip Figure 2-14 Installed DIMM ASUS P4B-FX motherboard user guide 2-11...
2.5.4 Removing a DIMM Follow these steps to remove a DIMM. 1. Simultaneously press the retaining clips outward to unlock the DIMM. Support the DIMM lightly with your fingers when pressing the retaining clips. The DIMM might get damaged when it flips out with extra force. 2.
4. Align the card connector with the slot and press firmly until the card is completely seated on the slot. 5. Secure the card to the chassis with the screw you removed earlier. 6. Replace the system cover. Figure 2-16 Installing a PCI Card ASUS P4B-FX motherboard user guide 2-13...
2.6.2 Configuring an expansion card After physically installing the expansion card, configure the card by adjusting the software settings. 1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 4 for information on BIOS setup. 2.
The AGP slot supports only 1.5V AGP cards. NEVER install a 3.3V AGP card into the slot. Doing so will severely damage the motherboard! P4B-FX Keyed for 1.5v P4B-FX Accelerated Graphics Port (AGP) Figure 2-18 Accelerated Graphics Port (AGP) Slot Location ASUS P4B-FX motherboard user guide 2-15...
Also, the CNR slot does not take up the motherboard space for one PCI slot because it is a shared slot; rather, it provides you more options. P4B-FX P4B-FX Communication & Networking Riser Connector Figure 2-19 Communications and Networking Riser (CNR) Slot...
The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode. USBPWR01 Enabled Disabled (Default) USBPWR23 P4B-FX Enabled Disabled (Default) P4B-FX USB Device Wake-Up Figure 2-20 USB Device Wake-up Settings ASUS P4B-FX motherboard user guide 2-17...
Page 38
KB_PWR Enabled Disabled (Default) P4B-FX P4B-FX Keyboard Power Up Figure 2-21 Keyboard Power Settings 3. Audio CODEC (3-pin AUD_EN1) (on audio models only) This jumper allows you to enable or disable the audio CODEC on the motherboard. Disable the audio CODEC if you desire to install a PCI audio card into one of the PCI slots.
Page 39
6. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data. CLRTC Intel I/O Controller P4B-FX (ICH2) Short solder points P4B-FX Clear RTC RAM to Clear CMOS Figure 2-24 Clear RTC RAM ASUS P4B-FX motherboard user guide 2-19...
IDE connector cause this LED to light up. IDELED P4B-FX TIP: If the case-mounted LED does not light up, try reversing the 2-pin plug. P4B-FX IDE Activity LED Figure 2-25 Hard Disk LED Connector 2-20 Chapter 2: Hardware information...
Page 41
PIN 1. P4B-FX Pin 1 P4B-FX IDE Connectors Figure 2-26 IDE Connectors For UltraDMA/100/66 IDE devices, use an 80-conductor IDE cable. The UltraDMA/66 cable included in the motherboard package also supports UltraDMA/100. ASUS P4B-FX motherboard user guide 2-21...
Page 42
NOTE: Orient the red markings on the floppy ribbon cable to PIN 1. P4B-FX PIN 1 P4B-FX Floppy Disk Drive Connector Figure 2-27 Floppy Disk Drive Connector 4. Fan connectors (3-pin CPUFAN, SYSTEM) The fan connectors support a CPU fan and a system fan at +12V.
Page 43
If you enable the onboard infrared feature for use with an infrared module, the COM2 port does not work. IR_CN Front View Back View IRTX P4B-FX (NC) IRRX P4B-FX Infrared Module Connector Figure 2-30 Infrared Module Connector ASUS P4B-FX motherboard user guide 2-23...
Page 44
ATXPWR Pin 1 +12.0VDC +5.0VDC +5VSB +5.0VDC PWR_OK -5.0VDC +5.0VDC ATX12V +5.0VDC PS_ON# +12V DC +3.3VDC -12.0VDC +3.3VDC +3.3VDC P4B-FX Pin 1 +12V DC P4B-FX ATX Power Connectors Figure 2-31 Power Supply Connectors 2-24 Chapter 2: Hardware information...
Page 45
This connector is disabled when there is a line out device connected to the Line Out (lime) jack on the rear panel. HPHONE P4B-FX P4B-FX True-Level Line Out Header Figure 2-33 Headphone True-level Line Out Connector ASUS P4B-FX motherboard user guide...
Page 46
Microphone (pink) jack on the rear panel. You may only use one microphone at a time. MIC2 P4B-FX P4B-FX Internal Microphone Connector Figure 2-34 Internal Microphone Connector 11. Chassis alarm lead (4-1 pin CHASSIS) This lead is for a chassis designed with intrusion detection feature.
Page 47
The normal status for this LED is ON, when there is no incoming data signal. The LED blinks when data is received. The system message LED feature requires an ACPI OS and driver support. ASUS P4B-FX motherboard user guide 2-27...
Page 48
• System Management Interrupt Lead (2-pin SMISW) This 2-pin connector allows you to manually place the system into a suspend mode, or “green” mode, where system activity is instantly decreased to save power and to expand the life of certain system components.
High frequency beeps when CPU overheated; system is working System running at a lower frequency 7. At power on, hold down <Delete> to enter BIOS Setup. Follow the instructions in Chapter 4. ASUS P4B-FX motherboard user guide...
Powering off the computer You must first exit the operating system and shut down the system before switching off the power. For ATX power supplies, you can press the ATX power switch after exiting or shutting down the operating system. If you use Windows 95/98/2000/XP, click the Start button, click Shut Down, then click the OK button to shut down the computer.
Chapter 4 This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided. BIOS setup...
4. In DOS mode, type A:\AFLASH <Enter> to run AFLASH. If the word “unknown” appears after Flash Memory:, the memory chip is either not programmable or is not supported by the ACPI BIOS and therefore, cannot be programmed by the Flash Memory Writer utility. ASUS P4B-FX motherboard user guide...
Page 56
5. Select 1. Save Current BIOS to File from the Main menu and press <Enter>. The Save Current BIOS To File screen appears. 6. Type a filename and the path, for example, A:\XXX-XX.XXX, then press <Enter>. Chapter 4: BIOS Setup...
BIOS revision will solve your problems. Careless updating may result to more problems with the motherboard! 1. Download an updated ASUS BIOS file from the Internet (see the ASUS Contact Information on page x for details) and save to the boot floppy disk you created earlier.
Page 58
If the Flash Memory Writer utility is not able to successfully update a complete BIOS file, the system may not boot. If this happens, call the ASUS service center for support. Chapter 4: BIOS Setup...
Because the BIOS software is constantly being updated, the following BIOS setup screens and descriptions are for reference purposes only, and may not exactly match what you see on your screen. ASUS P4B-FX motherboard user guide...
4.2.1 BIOS menu bar The top of the screen has a menu bar with the following selections: MAIN Use this menu to make changes to the basic system configuration. ADVANCED Use this menu to enable and make changes to the advanced features.
While moving around through the Setup program, note that explanations appear in the Item Specific Help window located to the right of each menu. This window displays the help text for the currently highlighted field. ASUS P4B-FX motherboard user guide...
Main menu When you enter the Setup program, the following screen appears. System Time [XX:XX:XX] Sets the system to the time that you specify (usually the current time). The format is hour, minute, second. Valid values for hour, minute and second are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59).
Before attempting to configure a hard disk drive, make sure you have the correct configuration information supplied by the drive manufacturer. Incorrect settings may cause the system to fail to recognize the installed hard disk. ASUS P4B-FX motherboard user guide...
Page 64
[User Type HDD] Manually enter the number of cylinders, heads and sectors per track for the drive. Refer to the drive documentation or on the drive label for this information. After entering the IDE hard disk drive information into BIOS, use a disk utility, such as FDISK, to partition and format new IDE hard disk drives.
Page 65
To make changes to this field, set the Type field to [User Type HDD]. Configuration options: [Disabled] [2 Sectors] [4 Sectors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum] ASUS P4B-FX motherboard user guide 4-11...
Page 66
SMART Monitoring [Disabled] This field allows you to enable or disable the S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) system that utilizes internal hard disk drive monitoring technology. This parameter is normally disabled because the resources used in the SMART monitoring feature may decrease system performance.
[6/Sec] [8/Sec] [10/Sec] [12/Sec] [15/Sec] [20/Sec] [24/Sec] [30/Sec] Keyboard Auto-Repeat Delay [1/4 Sec] This field sets the time interval for displaying the first and second characters. Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec] ASUS P4B-FX motherboard user guide 4-13...
Page 68
Main menu items continued... Language [English] This field displays the BIOS language version. Supervisor Password [Disabled] / User Password [Disabled] These fields allow you to set passwords. To set a password, highlight the appropriate field and press <Enter>. Type in a password then press <Enter>.
CPU Level 1 Cache, CPU Level 2 Cache [Enabled] These fields allow you to choose from the default of [Enabled] or choose [Disabled] to turn on or off the CPU Level 1 and Level 2 built-in cache. Configuration options: [Disabled] [Enabled] ASUS P4B-FX motherboard user guide 4-15...
Page 70
BIOS Update [Enabled] This field functions as an update loader integrated into the BIOS to supply the processor with the required data. When set to [Enabled], the BIOS loads the update on all processors during system bootup. Configuration options: [Disabled] [Enabled] PS/2 Mouse Function Control [Auto] The default setting [Auto] allows the system to detect a PS/2 mouse at startup.
SDRAM RAS to CAS Delay [3T] This item controls the latency between the SDRAM active command and the read/write command. The SDRAM RAS to CAS Delay parameter appears only when you set the SDRAM Configuration to [User Defined]. ASUS P4B-FX motherboard user guide 4-17...
Page 72
SDRAM RAS Precharge Delay [3T] This item controls the idle clocks after issuing a precharge command to the SDRAM. The SDRAM RAS Precharge Delay parameter appears only when you set the SDRAM Configuration to [User Defined]. SDRAM Active Precharge Delay [6T] This item controls the number os SDRAM clocks used for SDRAM parameters.
Onboard Serial Port 2 [2F8H/IRQ3] These fields allow you to set the addresses for the onboard serial connectors. Serial Port 1 and Serial Port 2 must have different addresses. Configuration options: [3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/ IRQ10] [Disabled] ASUS P4B-FX motherboard user guide 4-19...
Page 74
UART2 Use Standard Infrared [Disabled] This field allows you to select the device on which to assign UART2. Configuration options: [Disabled] [Enabled] Onboard Parallel Port [378H/IRQ7] This field sets the address of the onboard parallel port connector. If you disable this field, the Parallel Port Mode and ECP DMA Select configurations are not available.
[Primary] or [Both] if you want to connect USB devices. Configuration options: [Disabled] [Primary] [Both]] Primary VGA BIOS [PCI VGA Card] This field allows you to select the primary graphics card. Configuration options: [PCI VGA Card] [AGP VGA Card] ASUS P4B-FX motherboard user guide 4-21...
Onboard LAN Boot ROM [Disabled] This parameter allows you to enable or disable the boot ROM on the onboard LAN chipset. Set this field to [Enabled] if you wish to use the onboard LAN boot ROM. Configuration options: [Disabled] [Enabled] 4.4.3.1 PCI IRQ Resource Exclusion IRQ XX Reserved [No/ICU] These fields indicate whether or not the displayed IRQ for each field is...
Windows with the APM feature. In Windows 98 or later, APM is automatically installed as indicated by a battery and power cord icon labeled “Power Management” in the Control Panel. Select the item “Advanced” in the Power Management Properties dialog box. ASUS P4B-FX motherboard user guide 4-23...
Page 78
Video Off Option [Suspend -> Off ] This field determines when to activate the video off feature for monitor power management. Configuration options: [Always On] [Suspend -> Off] Video Off Method [DPMS OFF] This field defines the video off features. The Display Power Management System (DPMS) feature allows the BIOS to control the video display card if it supports the DPMS feature.
When set to [Enabled], this parameter allows you to turn on the system through a PCI modem. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled] ASUS P4B-FX motherboard user guide 4-25...
Page 80
Power On By PS/2 Keyboard [Space Bar] This parameter allows you to use specific keys on the keyboard to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key] Power On By PS/2 Mouse [Disabled] When set to [Enabled], this parameter allows you to use the PS/2 mouse...
If any of the monitored items is out of range, the following error message appears: “Hardware Monitor found an error. Enter Power setup menu for details”. You will then be prompted to “Press F1 to continue or DEL to enter SETUP”. ASUS P4B-FX motherboard user guide 4-27...
Boot Menu Boot Sequence The Boot menu allows you to select among the four possible types of boot devices listed using the up and down arrow keys. By using the <+> or <Space> key, you can promote devices and by using the <-> key, you can demote devices.
Page 83
The Advanced Programmable Interrupt Controller (APIC) setting allows you to distribute interrupt routings other than the 16 IRQs. The Programmable Interrupt Controller (PIC) setting allows you to use the 16 IRQs only. Configuration options: [PIC] [APIC] ASUS P4B-FX motherboard user guide 4-29...
Exit Menu When you have made all of your selections from the various menus in the Setup program, save your changes and exit Setup. Select Exit from the menu bar to display the following menu. Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10>...
This option saves your selections without exiting the Setup program. You can then return to other menus and make further changes. After you select this option, a confirmation window appears. Select [Yes] to save any changes to the non-volatile RAM. ASUS P4B-FX motherboard user guide 4-31...
The contents of the support CD are subject to change at any time without notice. Visit the ASUS website for updates. 5.2.1 Running the support CD To begin using the support CD, simply insert the CD into your CD-ROM drive.
If the welcome screen did not appear automatically, locate and double- click on the file ASSETUP.EXE from the BIN folder in the support CD to display the menus. 5.2.2 Main menu From the welcome screen, the program takes you directly to the main menu.
ASUS Update This program allows you to download the latest version of the BIOS from the ASUS website. Before using the ASUS Update, make sure that you have an Internet connection so you can connect to the ASUS website. Intel LDCM Administrator Setup ®...
This item installs the 3Deep software. 3Deep is the first application that gives online gamers the competitive edge in multi-player skirmishes. This application eliminates dark washed-out graphics to deliver true vibrant colors. ASUS Screen Saver This item installs the ASUS screen saver. Chapter 5: Software support...
Install the INF Driver before installing the Intel Application Accelerator. This item installs the RealTek 8100B PCI Fast Ethernet driver. Audio This item installs the AC ‘97 PCI audio driver. ASUS P4B-FX motherboard user guide...
The DOS utilities menu includes items that you can run in DOS mode. These items are also present in the software menu. 5.2.6 ASUS Contact Information Clicking the ASUS Contact Information button displays as stated. You may also find this information on page x of this user guide. Chapter 5: Software support...
The screens in this section are for reference only and may not exactly reflect the details you see on your screen. Motherboard Info The window displays the general specifications of the P4B-FX motherboard. Browse this CD The window displays the support CD contents in graphical format.
Page 96
Technical Support Form The window displays the ASUS Technical Support Request Form that you have to fill up when requesting technical support. Readme The window displays the contents of the support CD and a brief description of each in text format.
This section provides details on the new software applications that the motherboard supports. 5.3.1 ASUS Update The ASUS Update is a utility that allows you to update the motherboard BIOS and drivers. This utility requires an Internet connection either through a network or an Internet Service Provider (ISP).
Page 98
4. From the FTP site, select the BIOS version that you wish to download. Click Next. 5. Follow the instructions on the succeeding screens to complete the update process. If you selected the option to update the BIOS from a file, a window pops up prompting you to locate the file.
Page 101
Backup. A copy of a file, directory, or volume on a separate storage device from the original. This copy is for the purpose of data retrieval in case the original is accidentally erased, damaged, or destroyed. ASUS P4B-FX motherboard user guide...
Page 102
BIOS (Basic Input/Output System). BIOS is a set of routines that control how the computer transfers data between computer components, such as memory, disks, and the display adapter. The BIOS instructions are built into the computer’s read-only memory. BIOS parameters are configurable through the BIOS Setup program.
Page 103
I/O (Input/Output). The data transfers from the input devices like a keyboard, mouse, or scanner, to the output devices like a printer or the monitor screen. I/O Address. The specific memory location for a particular device. Two devices cannot share the same I/O address space. ASUS P4B-FX motherboard user guide...
Page 104
IrDA (Infrared Data Association). An internaltional organization that creates and promotes inter-operable, low cost, infrared data interconnection standards that support a walk-up, point-to-point model. The IrDA protocol is designed to support transmission of data between two devices over short-range point-to-point infrared at speeds between 9.6Kbps and 4Mbps.
Page 105
The Serial Presence Detect function is implemented using a 2048 bit EEPROM component. This nonvolatile storage device contains data programmed by the DIMM manufacturer that identifies the module type and various SDRAM organization and timing parameters. ASUS P4B-FX motherboard user guide...
Page 106
System Disk. A system disk contains the core file of an operating system and is used to boot up the operating system. TCP/IP (Transmission Control Protocol/Internet Protocol). The communications protocol used by the UNIX system and the Internet. TCP checks for lost packets, puts the data from multiple packets into the correct order, and requests that missing or damaged packets be resent.
Page 109
2-9 installation 2-5 Level 1/Level 2 Cache 4-15 Hard Disk Drives (HDDs) Speed 4-15 CHS Capacity 4-11 Chip Configuration 4-17 Cylinders 4-11 Clear RTC RAM 2-19 Heads 4-11 Communications and Networking Riser 2-16 ASUS P4B-FX motherboard user guide...
Page 110
IRQ Table 2-14 RAS to CAS Delay 4-17 layout 2-2 Serial Ports 1-5, 4-19 placement 2-1 SMART Monitoring 4-12 screws 2-1 Starting up 3-1 Multi-Sector Transfers 4-11 Support CD 5-1 ASUS Update 5-3 DOS Utilities 5-6 Onboard LED 2-3 Index...
Page 111
North Bridge 1-3 South Bridge 1-3 System Date 4-8 System memory configurations 2-10 System Time 4-8 UART2 4-21 Ultra DMA Mode 4-12 USB Legacy Support 4-17 USB ports 1-5 USWC 4-18 Video Memory 4-19 ZIF socket 2-4 ASUS P4B-FX motherboard user guide...