Motherboard DIY Troubleshooting Guide
Page 3
... viii 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 1-2 1.3.1 ... 2-1 2.1.2 Screw holes 2-1 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 2-10 2.5.3 Installing a ...
... viii 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 1-2 1.3.1 ... 2-1 2.1.2 Screw holes 2-1 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 2-10 2.5.3 Installing a ...
Motherboard DIY Troubleshooting Guide
Page 15
... bridge Intel I /O functionality and system hardware monitoring capability. The power supply must have at least 1A on the +5V standby lead (+5VSB). 6 Floppy disk connector. 1 CPU socket. A 478-pin surface mount, Zero Insertion Force (ZIF) socket called the Intel Memory Controller Hub (MCH) is supplied to prevent incorrect insertion of the..., a parallel port, two enhanced serial ports (one of the two major components of the connector is shut down or in soft-off mode. 8 IDE connectors. ASUS P4B-LX motherboard user guide 1-3
... bridge Intel I /O functionality and system hardware monitoring capability. The power supply must have at least 1A on the +5V standby lead (+5VSB). 6 Floppy disk connector. 1 CPU socket. A 478-pin surface mount, Zero Insertion Force (ZIF) socket called the Intel Memory Controller Hub (MCH) is supplied to prevent incorrect insertion of the..., a parallel port, two enhanced serial ports (one of the two major components of the connector is shut down or in soft-off mode. 8 IDE connectors. ASUS P4B-LX motherboard user guide 1-3
Motherboard DIY Troubleshooting Guide
Page 17
... keyboard port. This green 6-pin connector is shipped with a boxed CPU. 21 IEEE-1394 connector. This 6-pin digital interface supports electronic devices such as a mouse and PDA. 25 RJ-45 port. Retention Module Base Figure 1-2 Pre-installed Heatsink Retention Module Base ASUS P4B-LX motherboard user guide 1-5 This 25-pin port connects a parallel printer...as DV camcorders, digital cameras, scanners, and printers. 22 Optical SPDIF connector. This port allows connection to remove the retention module base when installing the CPU or installing other devices. 24 USB ports.
... keyboard port. This green 6-pin connector is shipped with a boxed CPU. 21 IEEE-1394 connector. This 6-pin digital interface supports electronic devices such as a mouse and PDA. 25 RJ-45 port. Retention Module Base Figure 1-2 Pre-installed Heatsink Retention Module Base ASUS P4B-LX motherboard user guide 1-5 This 25-pin port connects a parallel printer...as DV camcorders, digital cameras, scanners, and printers. 22 Optical SPDIF connector. This port allows connection to remove the retention module base when installing the CPU or installing other devices. 24 USB ports.
Motherboard DIY Troubleshooting Guide
Page 24
... comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket. This mark indicates the processor Pin 1 that the CPU has a gold triangular mark on one corner. Gold Mark Figure 2-4 Intel Pentium 4 478/Northwood Processor Note in the 478-pin...(FC-PGA2) package technology, and includes the Intel® NetBurst™ micro-architecture. Incorrect installation of the CPU into the socket may bend the pins and severely damage the CPU! 2-4 Chapter 2: Hardware information The Intel NetBurst micro-architecture features the hyper-pipelined technology, rapid execution engine, 400MHz...
... comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket. This mark indicates the processor Pin 1 that the CPU has a gold triangular mark on one corner. Gold Mark Figure 2-4 Intel Pentium 4 478/Northwood Processor Note in the 478-pin...(FC-PGA2) package technology, and includes the Intel® NetBurst™ micro-architecture. Incorrect installation of the CPU into the socket may bend the pins and severely damage the CPU! 2-4 Chapter 2: Hardware information The Intel NetBurst micro-architecture features the hyper-pipelined technology, rapid execution engine, 400MHz...
Motherboard DIY Troubleshooting Guide
Page 25
2.4.2 Installing the CPU Follow these steps to a 90°-100° angle. Locate the 478-pin ZIF socket on the motherboard. Unlock the socket by pressing the lever sideways, then lift it up to 90°-100° angle, otherwise the CPU does not fit in completely. Socket Lever 90 - 100 Figure 2-6 CPU Socket Lever at 90° -100° Angle Make sure that the socket lever is lifted up to install a CPU. 1. Figure 2-5 Intel 478-pin ZIF Socket 2. ASUS P4B-LX motherboard user guide 2-5
2.4.2 Installing the CPU Follow these steps to a 90°-100° angle. Locate the 478-pin ZIF socket on the motherboard. Unlock the socket by pressing the lever sideways, then lift it up to 90°-100° angle, otherwise the CPU does not fit in completely. Socket Lever 90 - 100 Figure 2-6 CPU Socket Lever at 90° -100° Angle Make sure that the socket lever is lifted up to install a CPU. 1. Figure 2-5 Intel 478-pin ZIF Socket 2. ASUS P4B-LX motherboard user guide 2-5
Motherboard DIY Troubleshooting Guide
Page 26
...prevent bending the pins and damaging the CPU! When the CPU is locked. Position the CPU above the socket such that it fits in place. DO NOT force the CPU into the socket until it is in one correct orientation. Gold Mark Figure 2-7 Installing the CPU 5. The CPU fits only in place, press it... firmly on the side tab to secure the CPU. The lever clicks on the socket while you push down the socket lever to indicate that its marked ...
...prevent bending the pins and damaging the CPU! When the CPU is locked. Position the CPU above the socket such that it fits in place. DO NOT force the CPU into the socket until it is in one correct orientation. Gold Mark Figure 2-7 Installing the CPU 5. The CPU fits only in place, press it... firmly on the side tab to secure the CPU. The lever clicks on the socket while you push down the socket lever to indicate that its marked ...
Motherboard DIY Troubleshooting Guide
Page 27
... Your boxed Intel Pentium 4 478/Northwood Processor package should come with installation instructions for the CPU, heatsink, and the retention mechanism. In case you buy a CPU separately, make sure that the heatsink fits properly on the motherboard. ASUS P4B-LX motherboard user guide 2-7 When you buy a boxed Intel Pentium 4 478/Northwood Processor, the package includes...
... Your boxed Intel Pentium 4 478/Northwood Processor package should come with installation instructions for the CPU, heatsink, and the retention mechanism. In case you buy a CPU separately, make sure that the heatsink fits properly on the motherboard. ASUS P4B-LX motherboard user guide 2-7 When you buy a boxed Intel Pentium 4 478/Northwood Processor, the package includes...
Motherboard DIY Troubleshooting Guide
Page 29
Figure 2-11 Fan and Retention Mechanism 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 retention mechanism to secure the heatsink and fan to opposite directions. Push down the locks on the motherboard labeled CPU_FAN. CPU Fan Connector (CPU_FAN) Figure 2-12 CPU Fan Connector ASUS P4B-LX motherboard user guide 2-9 When secure, the retention locks should point to the module base. 3.
Figure 2-11 Fan and Retention Mechanism 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 retention mechanism to secure the heatsink and fan to opposite directions. Push down the locks on the motherboard labeled CPU_FAN. CPU Fan Connector (CPU_FAN) Figure 2-12 CPU Fan Connector ASUS P4B-LX motherboard user guide 2-9 When secure, the retention locks should point to the module base. 3.
Motherboard DIY Troubleshooting Guide
Page 39
... Rotation P4B-LX CHASIS_FAN GND +12V Rotation P4B-LX 12-Volt Fan Connectors Figure 2-23 Fan Connectors 4. CPU and chassis fan connectors (3-pin CPU_FAN, CHASSIS_FAN) The fan connectors support a CPU fan and a chassis fan at +12V. P4B-LX P4B-LX USB Header Figure 2-24 USB Header USB23 1 5 6 10 1: USB Power 6: USB Power 2: USBP2- 7: USBP3- 3: USBP2+ 8: USBP3+ 4: GND 9: GND 5: NC ASUS P4B-LX motherboard...
... Rotation P4B-LX CHASIS_FAN GND +12V Rotation P4B-LX 12-Volt Fan Connectors Figure 2-23 Fan Connectors 4. CPU and chassis fan connectors (3-pin CPU_FAN, CHASSIS_FAN) The fan connectors support a CPU fan and a chassis fan at +12V. P4B-LX P4B-LX USB Header Figure 2-24 USB Header USB23 1 5 6 10 1: USB Power 6: USB Power 2: USBP2- 7: USBP3- 3: USBP2+ 8: USBP3+ 4: GND 9: GND 5: NC ASUS P4B-LX motherboard...
Motherboard DIY Troubleshooting Guide
Page 40
In addition to the CPU. P4B-LX ATXPWR Pin 1 +12.0VDC +5VSB PWR_OK COM +5.0VDC COM +5.0VDC COM +3.3VDC +3.3VDC ATX12V +12V DC COM +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.3VDC Pin 1 P4B-LX ATX Power Connectors +12V DC COM Figure 2-25 Power Supply Connectors 2-20 Chapter 2: Hardware information The system may...
In addition to the CPU. P4B-LX ATXPWR Pin 1 +12.0VDC +5VSB PWR_OK COM +5.0VDC COM +5.0VDC COM +3.3VDC +3.3VDC ATX12V +12V DC COM +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.3VDC Pin 1 P4B-LX ATX Power Connectors +12V DC COM Figure 2-25 Power Supply Connectors 2-20 Chapter 2: Hardware information The system may...
Motherboard DIY Troubleshooting Guide
Page 47
... system may light up or switch between orange and green after the system LED turns on the screen. If your retailer for the first time 1. ASUS P4B-LX motherboard user guide 3-1 3.1 Starting up for assistance. After applying power, the power LED on the chain) c. If you do not see anything... Chapter 4. Be sure that is working Meaning No error during POST No DRAM installed or detected Video card not found or video card memory bad CPU overheated; After making all switches are running at the back of the chassis). 6. Turn on , hold down to the power connector at a ...
... system may light up or switch between orange and green after the system LED turns on the screen. If your retailer for the first time 1. ASUS P4B-LX motherboard user guide 3-1 3.1 Starting up for assistance. After applying power, the power LED on the chain) c. If you do not see anything... Chapter 4. Be sure that is working Meaning No error during POST No DRAM installed or detected Video card not found or video card memory bad CPU overheated; After making all switches are running at the back of the chassis). 6. Turn on , hold down to the power connector at a ...
Motherboard DIY Troubleshooting Guide
Page 65
... bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. Configuration options: [Auto] [1:1] [3:4] ASUS P4B-LX motherboard user guide 4-15 4.4 Advanced Menu CPU Speed [Manual] This parameter allows you desire to change the internal CPU frequency from the available options. This field sets the frequency multiple between the...
... bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. Configuration options: [Auto] [1:1] [3:4] ASUS P4B-LX motherboard user guide 4-15 4.4 Advanced Menu CPU Speed [Manual] This parameter allows you desire to change the internal CPU frequency from the available options. This field sets the frequency multiple between the...
Motherboard DIY Troubleshooting Guide
Page 66
... all processors during system bootup. When set to [Enabled], the BIOS loads the update on or off the CPU Level 1 and Level 2 built-in cache. Otherwise, leave to the default setting [Disabled]. CPU Level 1 Cache, CPU Level 2 Cache [Enabled] These fields allow you to choose from the default of greater than 64MB, you...
... all processors during system bootup. When set to [Enabled], the BIOS loads the update on or off the CPU Level 1 and Level 2 built-in cache. Otherwise, leave to the default setting [Disabled]. CPU Level 1 Cache, CPU Level 2 Cache [Enabled] These fields allow you to choose from the default of greater than 64MB, you...
Motherboard DIY Troubleshooting Guide
Page 69
...] [Disabled] 4.4.2 I/O Device Configuration Floppy Disk Access Control [R/W] When set to [Read Only], this feature frees the PCI bus when the CPU is accessing 8-bit ISA cards. Configuration options: [R/W] [Read Only] Onboard Serial Port 1 [3F8H/IRQ4] This field allows you to , ...and writes. The default setting [R/W] allows both . Configuration options: [3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/IRQ10] [Disabled] ASUS P4B-LX motherboard user guide 4-19 Configuration options: [Enabled] [Disabled] Onboard PCI IDE [Both] This field allows tou to [Disabled]. Delayed Transaction ...
...] [Disabled] 4.4.2 I/O Device Configuration Floppy Disk Access Control [R/W] When set to [Read Only], this feature frees the PCI bus when the CPU is accessing 8-bit ISA cards. Configuration options: [R/W] [Read Only] Onboard Serial Port 1 [3F8H/IRQ4] This field allows you to , ...and writes. The default setting [R/W] allows both . Configuration options: [3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/IRQ10] [Disabled] ASUS P4B-LX motherboard user guide 4-19 Configuration options: [Enabled] [Disabled] Onboard PCI IDE [Both] This field allows tou to [Disabled]. Delayed Transaction ...
Motherboard DIY Troubleshooting Guide
Page 77
...Configuration options: [Disabled] [Everyday] [By Date] 4.5.2 Hardware Monitor MB Temperature [xxxC/xxxF] CPU Temperature [xxxC/xxxF] The onboard hardware monitor automatically detects the MB (motherboard) and CPU temperatures. If any of range, the following error message appears: "Hardware Monitor found an error...these fields. CPU Fan Speed [xxxxRPM] or N/A Chassis Fan Speed [xxxxRPM] or N/A The onboard hardware monitor automatically detects the CPU, system, and PCI fan speeds in rotations per minute (RPM). You may configure your system to enter SETUP". ASUS P4B-LX motherboard user ...
...Configuration options: [Disabled] [Everyday] [By Date] 4.5.2 Hardware Monitor MB Temperature [xxxC/xxxF] CPU Temperature [xxxC/xxxF] The onboard hardware monitor automatically detects the MB (motherboard) and CPU temperatures. If any of range, the following error message appears: "Hardware Monitor found an error...these fields. CPU Fan Speed [xxxxRPM] or N/A Chassis Fan Speed [xxxxRPM] or N/A The onboard hardware monitor automatically detects the CPU, system, and PCI fan speeds in rotations per minute (RPM). You may configure your system to enter SETUP". ASUS P4B-LX motherboard user ...
Motherboard DIY Troubleshooting Guide
Page 88
...Color 3Deep This item installs the 3Deep software. 3Deep is for viewing files saved in multi-player skirmishes. 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 to remotely flash... PC-cillin online help for monitoring the Client system. This application eliminates dark washed-out graphics to use the hardware manager features. ASUS BIOS Flash Utility This utility allows you keep your computer at a healthy operating condition. Acrobat Reader This item installs the Adobe Acrobat...
...Color 3Deep This item installs the 3Deep software. 3Deep is for viewing files saved in multi-player skirmishes. 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 to remotely flash... PC-cillin online help for monitoring the Client system. This application eliminates dark washed-out graphics to use the hardware manager features. ASUS BIOS Flash Utility This utility allows you keep your computer at a healthy operating condition. Acrobat Reader This item installs the Adobe Acrobat...
Motherboard DIY Troubleshooting Guide
Page 98
... is used by the computer. G-2 Appendix C: Glossary You can have one of from the CPU than a regular RAM. Boot. PIO (Programmable I/O) IDE requires that the CPU be involved in the system memory. When the CPU reads data from the main memory, a copy of this data is stored in which it is... transferred from the cache memory instead of two values: 0 or 1. CPU (Central Processing Unit). The BIOS instructions are built into the EEPROM. A bit can update the BIOS using Windows 95 or later, selecting "Restart" from...
... is used by the computer. G-2 Appendix C: Glossary You can have one of from the CPU than a regular RAM. Boot. PIO (Programmable I/O) IDE requires that the CPU be involved in the system memory. When the CPU reads data from the main memory, a copy of this data is stored in which it is... transferred from the cache memory instead of two values: 0 or 1. CPU (Central Processing Unit). The BIOS instructions are built into the EEPROM. A bit can update the BIOS using Windows 95 or later, selecting "Restart" from...
Motherboard DIY Troubleshooting Guide
Page 101
...also DRAM and SDRAM. SCSI (Small Computer System Interface). SDRAM (Synchronous DRAM). ASUS P4B-LX motherboard user guide G-5 The PCI Bus Master can perform data transfer without local CPU help and furthermore, the CPU can be treated as one stop bit. This type of the American National Standards...a 16-bit or 32-bit bus. A SIR specification defines a short-range infrared asynchronous serial transmission mode with data transfers between the CPU and memory. RAM (Random Access Memory). RAM, however, is turned off, or if power glitches occur. PCI Bus (Peripheral Component ...
...also DRAM and SDRAM. SCSI (Small Computer System Interface). SDRAM (Synchronous DRAM). ASUS P4B-LX motherboard user guide G-5 The PCI Bus Master can perform data transfer without local CPU help and furthermore, the CPU can be treated as one stop bit. This type of the American National Standards...a 16-bit or 32-bit bus. A SIR specification defines a short-range infrared asynchronous serial transmission mode with data transfers between the CPU and memory. RAM (Random Access Memory). RAM, however, is turned off, or if power glitches occur. PCI Bus (Peripheral Component ...
Motherboard DIY Troubleshooting Guide
Page 105
... 3-1 BIOS Flash Utility 5-4 Boot Device Selection 4-28 Boot Up NumLock Status 4-13 Boot Virus Detection 4-29 C Central Processing Unit (CPU) 2-4 CPU socket 1-3 fan connector 2-9 installation 2-5 Level 1/Level 2 Cache 4-16 Speed 4-15 Chip Configuration 4-17 Clear RTC RAM 2-19 Communications...IDE 2-18 CPU frequency 2-17 D DIMM installing 2-11 removing 2-12 DIMM sockets 1-3 DIP switches 1-4, 2-16 E E-Color 3Deep 5-4 Expansion card installation 2-13 IRQ assigments 2-14 Expansion slots 1-4, 2-13 AGP 1-4, 2-15 PCI 1-4, 2-15 CNR 2-16 F Flash EEPROM 1-4 Floppy 3 Mode 4-8 ASUS P4B-LX motherboard user ...
... 3-1 BIOS Flash Utility 5-4 Boot Device Selection 4-28 Boot Up NumLock Status 4-13 Boot Virus Detection 4-29 C Central Processing Unit (CPU) 2-4 CPU socket 1-3 fan connector 2-9 installation 2-5 Level 1/Level 2 Cache 4-16 Speed 4-15 Chip Configuration 4-17 Clear RTC RAM 2-19 Communications...IDE 2-18 CPU frequency 2-17 D DIMM installing 2-11 removing 2-12 DIMM sockets 1-3 DIP switches 1-4, 2-16 E E-Color 3Deep 5-4 Expansion card installation 2-13 IRQ assigments 2-14 Expansion slots 1-4, 2-13 AGP 1-4, 2-15 PCI 1-4, 2-15 CNR 2-16 F Flash EEPROM 1-4 Floppy 3 Mode 4-8 ASUS P4B-LX motherboard user ...