Asus P4B-M Motherboard DIY Troubleshooting Guide
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- Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 1
Motherboard ® P4B-M User Guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 2
express written permission of ASUSTeK COMPUTER INC. ("ASUS"). Product warranty or service will not be extended if: (1) the ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 3
2.2 Motherboard layout 2-2 2.3 Before you proceed 2-3 2.4 Central Processing Unit (CPU 2-4 2.4.1 Overview 2-4 2.4.2 Installing the CPU 2-5 2.4.3 Installing the heatsink and fan 2-7 2.4.4 Connecting the CPU fan cable 2-9 2.5 System memory 2-10 2.5.1 Overview 2-10 2.5.2 Memory configurations - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 4
2-16 2.7 Switches and jumpers 2-17 2.7.1 Switch settings 2-17 2.7.2 Jumper settings 2-18 2.8 Connectors 2-22 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 4-1 4.1 Managing and updating your BIOS 4-1 4.1.1 Using - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 5
Contents 5.2.3 Software menu 5-3 5.2.4 Drivers menu 5-5 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 v - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 6
and used in accordance with manufacturer's instructions, may cause harmful interference to radio determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one radio noise emissions from digital apparatus set out in the Radio Interference Regulations - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 7
sure that your power supply is set to the correct voltage in your service technician or your retailer. Operation safety • Before installing the motherboard and adding devices on it, carefully read all the manuals problems with the product, contact a qualified service technician or your retailer. vii - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 8
About this guide This user guide contains the information you need when installing the ASUS P4B-M motherboard. How this guide is organized This manual contains the following parts: • Chapter 1: Product introduction This chapter describes the features of the P4B-M motherboard. It includes brief - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 9
this guide To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual. WARNING updates. 1. ASUS Websites The ASUS websites worldwide provide updated information on ASUS hardware and software products. The ASUS websites are listed in the ASUS - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 10
Business Center, Building 2 Newark, CA 94560, USA +1-510-608-4555 [email protected] Technical Support Fax: +1-510-608-4555 BBS: +1-510-739-3774 Email: [email protected] WWW: www.asus.com FTP: ftp.asus.com/pub/ASUS ASUS COMPUTER GmbH (Europe) Marketing Address: Fax: Email: Harkortstr. 25 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 11
Chapter 1 This chapter describes the features of the P4B-M motherboard. It includes brief explanations of the special attributes of the motherboard and the new technology it supports. Product introduction - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 12
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 13
package for the following items. ASUS P4B-M motherboard (micro-ATX form factor: 9.6-in x 9.6-in) ASUS P4B-M support CD ASUS 2-port USB module 80-conductor ribbon cable for UltraDMA/33/66/100 IDE drives Ribbon cable for a 3.5-inch floppy drive Bag of extra jumper caps User Guide If any of the above - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 14
Over view Before you install the P4B-M 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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 15
interface, system memory interface, AGP interface, and Hub Interface. 3 SDRAM DIMM sockets. These three 168-pin DIMM sockets support up to 3GB BIOS program. 9 DIP switches. This 10-switch Dual Inline Package (DIP) allows you to set the CPU external frequency. ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 16
CNR interface. 11 ASUS ASIC. This motherboard. This LED acts as a reminder to turn off the system power before plugging or unplugging devices. 13 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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 17
to a Local Area Network (LAN) through a network hub. 27 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-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 18
interfaces. Experience 5.1-channel surround sound and enhanced 3D audio while playing your favorite DVDs and computer games. Onboard LAN The motherboard incorporates the RealTek 8100 PCI LAN chip to support 10/100BASE-T Fast Ethernet networking. Smart Card Reader support A special connector for the - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 19
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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 20
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 21
(8) screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so may damage the motherboard. Place this side towards the rear of the chassis Figure 2-1 Motherboard placement and screw holes ASUS P4B-M motherboard user guide 2-1 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 22
845 Memory Controller Hub (MCH) 01 23 45 Accelerated Graphics Port (AGP) SERIRQ_CON P4B-M Audio Controller PCI3 CNR_SLOT LED1 ASUS ASIC USBPWR23 CNRUSB0 CNRUSB1 USB23 HDDLED PANEL DIP_SW Figure 2-2 Motherboard Layout The audio controller, external GAME/AUDIO connectors, internal audio - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 23
motherboard, peripherals, and/or components. When lit, the onboard LED indicates that the system is in suspend or soft-off mode, not powered OFF. See the illustration below. P4B-M ® P4B-M Onboard LED ON Standby Power Figure 2-3 Onboard Power LED OFF Powered Off ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 24
2.4 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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 25
the socket by pressing the lever sideways, then lift it up to a 90°-100° angle. Socket Lever 90 - 100 Figure 2-6 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-M motherboard user guide 2-5 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 26
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 2-7 Installing the CPU 5. When the CPU is in place, press it firmly on the socket while you push down the - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 27
the CPU Heatsink 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-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting 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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 29
Installed and Locked 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 2-12 CPU Fan Connector ASUS P4B-M motherboard user guide 2-9 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 30
2.5 System memor y 2.5.1 Overview The motherboard comes with three Single Data Rate (SDR) Dual Inline Memory Module (DIMM) sockets. These sockets support up to 3GB system memory using unbuffered ECC or non-ECC PC100/133 DIMMs. 88 Pins P4B-M ® P4B-M 168-Pin DIMM Sockets 60 Pins 20 Pins Figure 2- - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 31
DIMMs or other system components. Failure to do so may cause severe damage to both the motherboard and the components. Follow these steps to install a DIMM. 1. Unlock a DIMM socket by Unlocked Retaining Clip Figure 2-15 Installed DIMM ASUS P4B-M motherboard user guide Locked Retaining Clip 2-11 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 32
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. Remove the - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 33
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 necessary hardware settings for the card. 2. Remove the system unit cover (if your motherboard is already ASUS P4B-M motherboard user guide 2-13 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 34
- - Onboard USB controller HC1 shared AGP used CNR LAN - - - - shared - - - CNR Audio/Modem - used - - - - - - Onboard Audio - - - - - shared - - Onboard LAN - - - - shared - - - When using PCI cards on shared slots, ensure that the drivers support "Share IRQ" or that the cards do not - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 35
notches on the card golden fingers to ensure that they fit the AGP slot on your motherboard. Below is an example of a +1.5V AGP card. P4B-M ® P4B-M Accelerated Graphics Port (AGP) Keyed for 1.5V Figure 2-19 Accelerated Graphics Port (AGP) Slot Location ASUS P4B-M motherboard user guide 2-15 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 36
and Networking Riser (CNR) slot supports interface cards that integrates audio, modem, and network functionality. The CNR specification supports interfaces including: • Audio Codec '97 (AC '97) - for audio and/or modem functions • Local Area Network (LAN) - for networking functions • Universal - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 37
-M CPU External Frequency Selection CPU 100MHz 105MHz 133MHz 141MHz (Default) Figure 2-22 CPU Frequency Settings Set the CPU frequency only to the recommended settings. Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable. ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 38
+5VSB to wake up from S3 sleep mode (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). Both jumpers are set to pins 1-2 (+5V) by default because not all computers have the appropriate power supply to support this feature. The USBPWR01 jumper is for the rear USB ports - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 39
1A on the +5VSB lead, and a corresponding setting in the BIOS (see section 4.5.1 Power Up Control). The default is setting is on pins 1-2 (+5V). P4B-M KBPWR 2 1 +5V (Default) 3 2 +5VSB ® P4B-M Keyboard Power Setting Figure 2-25 Keyboard Power Settings ASUS P4B-M motherboard user guide 2-19 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 40
of the Line-In, Line-Out, and Mic ports. Use the audio driver included in the support CD to install the multichannel audio feature. BCS P4B-M BCS1 BCS2 12 (BASS/CENTER) ® P4B-M Bass Center Setting Figure 2-27 Bass Center Settings BCS1 BCS2 23 (CENTER/BASS) (Default) 2-20 Chapter 2: Hardware - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 41
(RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the BIOS setup to re-enter data. P4B-M ® P4B-M Clear RTC RAM Figure 2-28 Clear RTC RAM Intel I/O Controller Hub (ICH2) CLRCMOS Short the pads to clear CMOS ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 42
clearly distinguished from jumpers in the Motherboard Layout. Placing jumper caps over these connector pins may damage your motherboard. Always connect ribbon cables with reversing the 2-pin plug. P4B-M HDDLED ® P4B-M HDD Activity LED Figure 2-29 Hard Disk LED Connector 2-22 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 43
drive as a slave device by setting its jumper accordingly. Refer to the hard disk documentation for the jumper settings. BIOS supports specific device bootup. If you have more UltraDMA/66 cable included in the motherboard package also supports UltraDMA/100. ASUS P4B-M motherboard user guide 2-23 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 44
NOTE: Orient the red markings on the floppy ribbon cable to PIN 1. ® P4B-M Floppy Disk Drive Connector Figure 2-31 Floppy Disk Drive Connector 4. CPU and system fan connectors (3-pin CPUFAN, SYSTEMFAN) The fan connectors support a CPU fan (750mA) and a system fan (500mA) at +12V. Orient the fans - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 45
SIR connector according to the pin definitions.. P4B-M IRTX GND IRRX KBPWR SIR KBPWR CIRRX GND CIRTX 1 CIR ® P4B-M Infrared Module Connector Figure 2-34 Infrared Module Connector Standard Infrared (SIR) Front View Back View IRTX +5V GND (NC) IRRX ASUS P4B-M motherboard user guide 2-25 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 46
pin ATXPWR connector, this motherboard requires that you connect the 4-pin ATX +12V power plug to provide sufficient power to the CPU. Make sure that your +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.3VDC P4B-M ® P4B-M ATX Power Connectors ATX12V +12V DC COM Pin 1 +12V DC COM Figure - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 47
3-pin audio cable. If your chassis has this audio module, you can connect a headphone/speaker on the front panel. P4B-M HPHONE 1 Left Headphone GND Right Headphone ® P4B-M True-Level Line Out Connector Figure 2-37 Headphone True-level Line Out Connector ASUS P4B-M motherboard user guide 2-27 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 48
) (optional) This connector connects to an optional front panel audio module using a 3-pin audio cable. If your chassis has this audio module, you can connect audio sources on the front panel. INT_LINEIN GND P4B-M ® P4B-M Line In Connector Left Channel Right Channel Figure 2-39 Internal - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 49
IRQ connector (2-pin SERIRQ_CON) (optional) This connector connects the serial IRQ onboard. Some PCI cards, such as those with PCMCIA function, require this feature. SERIRQ_CON P4B-M SERIRQ GND ® P4B-M SERIRQ Connector Figure 2-41 Serial IRQ Connector ASUS P4B-M motherboard user guide 2-29 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 50
health care, telephony, or traveling services through a Smart Card user interface software. P4B-M SMARTCON SCRRES# SCRUI RFU2 SCRREST NC PWR Ground Reset Ground P4B-M Reset SW Message LED ® ATX Power SMI Lead Switch* * Requires an ATX power supply. P4B-M System Panel Connectors Figure - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 51
OS settings. Pressing the power switch while in the ON mode for more than 4 seconds turns the system OFF. • Reset Switch Lead (2-pin RESET) This 2-pin connector connects to the case-mounted reset switch for rebooting the system without turning off the system power. ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 52
2-32 Chapter 2: Hardware information - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 53
Chapter 3 This chapter describes the power up sequence and gives information on the BIOS beep codes. Powering up - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 54
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 55
sure that all switches are off. settings and connections or call your retailer for assistance. Award BIOS memory bad CPU overheated; System running at a lower frequency 7. At power on, hold down to enter BIOS Setup. Follow the instructions in Chapter 4. ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 56
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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 57
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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 58
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 59
in the DOS prompt within Windows, and does not work with certain memory drivers that may be loaded when 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-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 60
5. Select 1. Save Current BIOS to File from the Main menu and press . The Save Current BIOS To File screen appears. 6. Type a filename and the path, for example, A:\XXX-XX.XXX, then press . 4-2 Chapter 4: BIOS Setup - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 61
BIOS Including Boot Block and ESCD screen appears. 5. Type the filename of your new BIOS and the path, for example, A:\XXX-XX.XXX, then press . To cancel this operation, press . 6. When prompted to confirm the BIOS update, press Y to start the update. ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 62
process, and if the problem persists, load the original BIOS file you saved to the boot disk. 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. 4-4 Chapter 4: BIOS Setup - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 63
sub-menus and make your selections among the predetermined choices. 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-M motherboard user guide 4-5 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 64
in the legend bar with their corresponding functions. Navigation Key(s) Function Description or Displays the General Help screen from anywhere in the BIOS Setup Jumps to the Exit menu or returns to the main menu from a sub-menu Left or Right arrow Selects the menu item - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 65
set default hot key to load the Setup default values. 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-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 66
Sets fields. System Date [XX/XX/XXXX] Sets the system to the date that you specify and year fields. Legacy Diskette A [1.44M, 3.5 in.] Sets the type of floppy drive installed. Configuration options: [None] in.] Floppy 3 Mode Support [Disabled] This is required to support older Japanese floppy drives - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 67
system, Setup may detect incorrect parameters. In these cases, select [User Type HDD] to manually enter the IDE hard disk drive parameters. Refer to the next section . Incorrect settings may cause the system to fail to recognize the installed hard disk. ASUS P4B-M motherboard user guide 4-9 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 68
[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 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 69
that came with the hard drive to determine the optimum value and set it manually. 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-M motherboard user guide 4-11 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 70
options: [Disabled] [Enabled] PIO Mode [4] This option lets you set a PIO (Programmed Input/Output) mode for the IDE device. Modes compatible IDE devices. Set to [Disabled] to suppress Ultra DMA capability. To make changes to this field, set the Type field to [User Type HDD]. Configuration options - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 71
options: [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-M motherboard user guide 4-13 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 72
BIOS language version. Supervisor Password [Disabled] / User Password [Disabled] These fields allow you to set passwords. To set button cell battery. See section "2.7 Switches and jumpers" for information on how Memory [XXX MB] This field automatically displays the amount of conventional memory - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 73
: [Auto] [1:1] [3:4] 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-M motherboard user guide 4-15 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 74
, IRQ12 can be used for expansion cards. When you set this field to [Enabled], BIOS reserves IRQ12, whether or not a PS/2 mouse is detected at startup. Configuration options: [Enabled] [Auto] USB Legacy Support [Auto] This motherboard supports Universal Serial Bus (USB) devices. The default of [Auto - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 75
Configuration to [User Defined]. 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-M motherboard user guide 4-17 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 76
when you set the SDRAM Configuration to [User Defined]. SDRAM only when you set the SDRAM Configuration to [User Defined]. SDRAM memory of the processor. It can greatly improve the display speed by caching the display data. You must set this to UC (uncacheable) if your display card does not support - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 77
[R/W] When set to [Read Only], this parameter protects files from being copied to floppy disks by allowing reads from, but not writes to, the floppy disk drive. The default setting [R/W] allows both reads and writes. Configuration options: [R/W] [Read Only] ASUS P4B-M motherboard user guide 4-19 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 78
the BIOS to detect whether you are using any modem/audio device. If a modem/audio device is detected, the onboard modem/audio controller is enabled; if no modem/audio device is detected, the controller is disabled. If there are conflicts with the onboard modem/audio controller, set the appropriate - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 79
. Set this field to [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-M motherboard user - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 80
on the onboard LAN chipset. Configuration options: [Disabled] [Enabled] 4.4.3.1 Onboard PCI Devices Control Onboard PCI Audio [Enabled] This field allows you to enable or disable the option ROM on the onboard PCI audio feature. Configuration options: [Disabled] [Enabled] 4-22 Chapter 4: BIOS Setup - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 81
the ISA Configuration Utility (ICU), and that this particular IRQ is NOT required by a legacy ISA card. Set the IRQ field to [Yes] if you install a legacy ISA card that requires a unique IRQ and you are NOT using ICU. Configuration options: [No/ICU] [Yes] ASUS P4B-M motherboard user guide 4-23 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 82
options: [User Defined] [Disabled] [Min Saving] [Max Saving] You should install the Advanced Power Management (APM) utility to keep the system time updated even when the computer enters suspend mode. In Windows 3.x and Windows 95, you need to install Windows with the APM feature. In Windows 98 or - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 83
Power Management System (DPMS) feature allows the BIOS to control the video display card if it supports the DPMS feature. [Blank Screen] only setting, holding the ATX switch for more than 4 seconds powers off the system. Configuration options: [Soft off] [Suspend] ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 84
while [Enabled] reboots the system. [Previous State] sets the system back to the state it was before Up On Ext. Modem [Disabled] This allows either settings of [Enabled] or [Disabled] for powering up power on. Power Up On PCI Card [Disabled] When set to [Enabled], this parameter allows you to turn on - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 85
] The Automatic Power Up feature does not work if the system is powered down by an operating system, such Windows 98, that has Advanced Configuration and Power Interface (ACPI) support enabled. Refer to the Glossary for a description of ACPI specification. ASUS P4B-M motherboard user guide 4-27 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 86
hardware monitor automatically detects the MB (motherboard) and CPU temperatures. CPU Fan Speed [xxxxRPM] System Fan Speed The onboard hardware monitor automatically detects the CPU and chassis fan speeds in rotations per to "Press F1 to continue or DEL to enter SETUP". 4-28 Chapter 4: BIOS Setup - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 87
IDs of all your connected ATAPI CD-ROM drives. Other Boot Device Select [INT18 Device (Network)] Configuration options: [Disabled] [SCSI Boot Device] [INT18 Device (Network)] ASUS P4B-M motherboard user guide 4-29 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 88
field allows you to set boot virus detection, ensuring a virus-free boot sector. The Seek [Enabled] When enabled, the BIOS will seek the floppy disk drive set to [Enabled] if you wish to use the ASUS MyLogo™ feature. Interrupt Mode [APIC] The Advanced Programmable Interrupt Controller (APIC) setting - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 89
stays on even when the PC is turned off. When you select this option, a confirmation window appears. Select [Yes] to save changes and exit. If you attempt to exit the Setup date, system time, and password, the BIOS asks for a confirmation before exiting. ASUS P4B-M motherboard user guide 4-31 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 90
the Setup menus. When you select this option or if you press , a confirmation window appears. Select [Yes] to load default values. Select Exit Saving Changes or make other After you select this option, a confirmation window appears. Select [Yes] to save any changes to the non-volatile RAM. - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 91
Chapter 5 This chapter describes the contents of the support CD that comes with the motherboard package. Software support - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 92
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 93
. 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. The CD automatically displays the welcome screen and the installation menus if Autorun is enabled in your computer. ASUS P4B-M motherboard user guide 5-1 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 94
program takes you directly to the main menu. The main menu displays an image of the motherboard, and the buttons and icons that link you to the software, drivers, utilities, and other information contained in the support CD. Place your mouse cursor on an icon and click to display the specified item - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 95
" for setup instructions. Intel® LDCM Administrator Setup This program is for monitoring PC systems on the network within the same bridge as the installed Client software. The administrator should install both the Administrator and the Client software. ASUS P4B-M motherboard user guide 5-3 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 96
This utility allows you to remotely flash the Client PC's BIOS when used with the Intel LDCM Administrator. ASUS PC Probe This smart utility monitors the fan speed, CPU temperature, and system voltages, and alerts you on any detected problems. This utility helps you keep your computer at a healthy - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 97
INF Driver before installing the Intel Application Accelerator. LAN This item installs the RealTek PCI Fast Ethernet driver. Audio This item installs the C-Media 6-channel PCI audio driver. Smart Card Reader This item installs the Smart Card Reader device driver. ASUS P4B-M motherboard user guide - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 98
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. 5-6 Chapter 5: Software support - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 99
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 motherboard. Browse this CD The window displays the support CD contents in graphical format. ASUS P4B-M motherboard user guide 5-7 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 100
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. 5-8 Chapter 5: Software support - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 101
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). Follow these steps to - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 102
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. Select the file, - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 103
Glossary This part lists the technical terms that you may encounter when reading this document. - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 104
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 105
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-M motherboard user guide G-1 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 106
). 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. You can update - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 107
BIOS, which initiates hardware devices and sets up necessary parameters for the OS. Since the flash ROM contents can be modified, you can update the BIOS The specific memory location for a particular device. Two devices cannot share the same I/O address space. ASUS P4B-M motherboard user guide G-3 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 108
a specification that defines a 32-bit data bus interface. PCI is a standard widely used by expansion card manufacturers. PCI Bus Master. The PCI Bus Master can perform data transfer without local CPU help and furthermore, the CPU can be treated as one of the Bus Masters. PCI 2.1 supports concurrent - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 109
motherboards. RAM (Random Access Memory). The computer's primary storage area used to write, store, and retrieve information and program instructions which are passed to the CPU time the CPU talks to the memory. SIR (Serial IrDA). A SIR specification defines a ASUS P4B-M motherboard user guide G-5 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 110
scheduled token-based protocols. This allows attaching or detaching while the host and other peripherals are in operation. Supports synchronous and asynchronous transfer types over the same set of wires up to 12Mbit/ sec. USB 2.0 provides 40 times the transfer rate compared to USB 1.0 and competes - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 111
Index This part contains an alphabetical list of the topics found in this document. - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 112
ASUS P4B-M motherboard - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 113
port 2-25 CPU frequency 2-17 D DIMM installing 2-11 removing 2-12 DIMM sockets 1-3 DIP switches 1-4, 2-17 E E-Color 3Deep 5-4 Expansion card installation 2-13 IRQ assigments 2-14 Expansion slots 1-4 AGP 1-4, 2-15 CNR 1-4, 2-16 PCI 1-4, 2-15 F Floppy 3 Mode 4-8 ASUS P4B-M motherboard user guide I-1 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 114
13 Auto-Repeat Rate 4-13 Features 4-13 L Legacy Diskette 4-8 M Motherboard components 1-2 IRQ Table 2-14 layout 2-2 placement 2-1 screws 2-1 Multi- 4-20 Modes 4-20 Password Supervisor 4-14 User 4-14 PC-cillin 5-4 PCI Configuration 4-21 PCI Latency Timer 4-21 PCI/VGA Palette Snoop 4-21 PIO Mode 4-12 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 115
5-3 Technical Support Form 5-8 Welcome screen 5-1 Suspend Mode 4-25 System Controller north bridge 1-3 south bridge 1-3 System Date 4-8 System Memory configurations 2-10 System Time 4-8 U UART2 4-20 Ultra DMA Mode 4-12 USB Ports 1-5 USWC 4-18 Z ZIF socket 2-4 ASUS P4B-M motherboard user guide I-3 - Asus P4B-M | Motherboard DIY Troubleshooting Guide - Page 116
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Motherboard
®
P4B-M
User Guide