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R P2B-L / P2B-S / P2B-LS Pentium® II Motherboards USER'S MANUAL Special Features ASUS P2B-L (power supply must provide at least 720mA on the +5VSB) • Intel 82558 LAN Chipset • Wake-On-LAN ASUS P2B-S • Adaptec 7890 SCSI Chipset • Adaptec 3860 SCSI Transceiver ASUS P2B-LS (power supply must provide at least 720mA on the +5VSB) • Intel 82558 LAN Chipset • Wake-On-LAN • Adaptec 7890 SCSI Chipset • Adaptec 3860 SCSI Transceiver
R P2B-L / P2B-S / P2B-LS Pentium® II Motherboards USER'S MANUAL Special Features ASUS P2B-L (power supply must provide at least 720mA on the +5VSB) • Intel 82558 LAN Chipset • Wake-On-LAN ASUS P2B-S • Adaptec 7890 SCSI Chipset • Adaptec 3860 SCSI Transceiver ASUS P2B-LS (power supply must provide at least 720mA on the +5VSB) • Intel 82558 LAN Chipset • Wake-On-LAN • Adaptec 7890 SCSI Chipset • Adaptec 3860 SCSI Transceiver
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CONTENTS I. INTRODUCTION How this Manual is Organized 7 Item Checklist 7 II. FEATURES Features 8 ASUS P2B-L/P2B-S/P2B-LS Motherboard 9 III. Jumpers 12 Jumper Settings 13 2. BIOS Setup 39 Load Defaults 40 Standard CMOS Setup 40 Details ...Chipset Features Setup 46 Details of Chipset Features Setup 46 Power Management Setup 49 Details of Power Management Setup 49 4 ASUS P2B-L/P2B-S/P2B-LS User's Manual INSTALLATION ASUS P2B-L/P2B-S/P2B-LS Motherboard Layout 10 Installation Steps 12 1. Central Processing Unit (CPU 19 Pentium II Processor 19 AAVID Heatsink 23 Elan Vital...
CONTENTS I. INTRODUCTION How this Manual is Organized 7 Item Checklist 7 II. FEATURES Features 8 ASUS P2B-L/P2B-S/P2B-LS Motherboard 9 III. Jumpers 12 Jumper Settings 13 2. BIOS Setup 39 Load Defaults 40 Standard CMOS Setup 40 Details ...Chipset Features Setup 46 Details of Chipset Features Setup 46 Power Management Setup 49 Details of Power Management Setup 49 4 ASUS P2B-L/P2B-S/P2B-LS User's Manual INSTALLATION ASUS P2B-L/P2B-S/P2B-LS Motherboard Layout 10 Installation Steps 12 1. Central Processing Unit (CPU 19 Pentium II Processor 19 AAVID Heatsink 23 Elan Vital...
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... Instructions on the built-in LAN controller (optional) Adaptec SCSI Select utility (optional) Adaptec EZ-SCSI utility (optional) Item Checklist Check that your retailer. (1) ASUS Motherboard (1) Retention mechanism & heatsink support for CPU and heatsink (2) Attach mount bridges (1) IDE ribbon cable for master and slave drives (1) Floppy ribbon cable for (1)... with terminator (optional) 68-pin Fast & Wide SCSI cable (optional) 50-pin Fast SCSI cable (optional) Network condition connector module (optional) ASUS P2B-L/P2B-S/P2B-LS User's Manual 7 Network Interface VIII. Installation IV.
... Instructions on the built-in LAN controller (optional) Adaptec SCSI Select utility (optional) Adaptec EZ-SCSI utility (optional) Item Checklist Check that your retailer. (1) ASUS Motherboard (1) Retention mechanism & heatsink support for CPU and heatsink (2) Attach mount bridges (1) IDE ribbon cable for master and slave drives (1) Floppy ribbon cable for (1)... with terminator (optional) 68-pin Fast & Wide SCSI cable (optional) 50-pin Fast SCSI cable (optional) Network condition connector module (optional) ASUS P2B-L/P2B-S/P2B-LS User's Manual 7 Network Interface VIII. Installation IV.
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BIOS supports IDE CD-ROM or SCSI device boot-up to CPU. 8 ASUS P2B-L/P2B-S/P2B-LS User's Manual FEATURES Features The ASUS P2B-L/P2B-S/P2B-LS motherboards are also supported without affecting system performance by the fastest CPU. • Multi-Speed: Supports Intel Pentium® II... Voltage Monitoring and Alert, System Resources Alert, and Virus Write Protection through the onboard Hardware Monitor, Intel LANDesk Client Manager (LDCM), and ASUS PC Probe software. • Super Multi-I /O subsystems and front-side bus (FSB) platform, which boosts the traditional 66-MHz internal bus...
BIOS supports IDE CD-ROM or SCSI device boot-up to CPU. 8 ASUS P2B-L/P2B-S/P2B-LS User's Manual FEATURES Features The ASUS P2B-L/P2B-S/P2B-LS motherboards are also supported without affecting system performance by the fastest CPU. • Multi-Speed: Supports Intel Pentium® II... Voltage Monitoring and Alert, System Resources Alert, and Virus Write Protection through the onboard Hardware Monitor, Intel LANDesk Client Manager (LDCM), and ASUS PC Probe software. • Super Multi-I /O subsystems and front-side bus (FSB) platform, which boosts the traditional 66-MHz internal bus...
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...): Supports DMI through BIOS, which allows hardware to communicate within a standard protocol creating a higher level of compatibility. (Requires DMI-enabled components.) II. II. FEATURES Motherboard Parts ASUS P2B-L/P2B-S/P2B-LS Motherboard SEC CPU Slot T: PS/2 Mouse B: PS/2 Keyboard T: USB Port 1 B: USB Port 2 COM 1 (Bottom) Parallel (Top) Serial (Bottom) COM 2 (Bottom) Intel ...-Fast/ Wide SCSI Chipset (optional) Accelerated Graphics Port 4PCI Slots Multi-I/O Hardware Monitor 2 ISA Slots Intel PIIX4E Programmable PCIset 2Mbit Flash ROM ASUS P2B-L/P2B-S/P2B-LS User's Manual 9
...): Supports DMI through BIOS, which allows hardware to communicate within a standard protocol creating a higher level of compatibility. (Requires DMI-enabled components.) II. II. FEATURES Motherboard Parts ASUS P2B-L/P2B-S/P2B-LS Motherboard SEC CPU Slot T: PS/2 Mouse B: PS/2 Keyboard T: USB Port 1 B: USB Port 2 COM 1 (Bottom) Parallel (Top) Serial (Bottom) COM 2 (Bottom) Intel ...-Fast/ Wide SCSI Chipset (optional) Accelerated Graphics Port 4PCI Slots Multi-I/O Hardware Monitor 2 ISA Slots Intel PIIX4E Programmable PCIset 2Mbit Flash ROM ASUS P2B-L/P2B-S/P2B-LS User's Manual 9
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... BIOS) CHA_FAN PANEL IDELED Combine IR Speaker NOTE: Greyed components are optional at the time of purchase. III. INSTALLATION Board Layout 10 ASUS P2B-L/P2B-S/P2B-LS User's Manual FS0 68 34 34 68 COM 2 RJ-45 FLOPPY LAN Activity LED Connector 35 1 35 1 50-Pin SCSI...Slot 1 ISA Slot 2 SCSI_EN Adaptec SCSI Chipset Adaptec AIC-3860 Chipset SECONDARY IDE 1 PRIMARY IDE Intel PIIX4E Chipset CLRTC 1 Freq. III. INSTALLATION ASUS P2B-L/P2B-S/P2B-LS Motherboard Layout DIMM Socket 0 (64/72 bit, 168 pin module) DIMM Socket 1 (64/72 bit, 168 pin module) DIMM Socket 2 (64...
... BIOS) CHA_FAN PANEL IDELED Combine IR Speaker NOTE: Greyed components are optional at the time of purchase. III. INSTALLATION Board Layout 10 ASUS P2B-L/P2B-S/P2B-LS User's Manual FS0 68 34 34 68 COM 2 RJ-45 FLOPPY LAN Activity LED Connector 35 1 35 1 50-Pin SCSI...Slot 1 ISA Slot 2 SCSI_EN Adaptec SCSI Chipset Adaptec AIC-3860 Chipset SECONDARY IDE 1 PRIMARY IDE Intel PIIX4E Chipset CLRTC 1 Freq. III. INSTALLATION ASUS P2B-L/P2B-S/P2B-LS Motherboard Layout DIMM Socket 0 (64/72 bit, 168 pin module) DIMM Socket 1 (64/72 bit, 168 pin module) DIMM Socket 2 (64...
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... Open Alarm Lead (4-1 pins) 22) CHA_/CPU_/PWR_FAN p. 33 Chassis/CPU/Power Supply Fan Connectors (3 pins) 23) ATXPWR p. 34 ATX Motherboard Power Connector (20 pins) *The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not use this address, otherwise conflicts will occur. ASUS P2B-L/P2B-S/P2B-LS User's Manual 11
... Open Alarm Lead (4-1 pins) 22) CHA_/CPU_/PWR_FAN p. 33 Chassis/CPU/Power Supply Fan Connectors (3 pins) 23) ATXPWR p. 34 ATX Motherboard Power Connector (20 pins) *The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not use this address, otherwise conflicts will occur. ASUS P2B-L/P2B-S/P2B-LS User's Manual 11
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... III. Set Jumpers on jumpers with three pins. Jumpers Several hardware settings are separated from other components. 4. See motherboard layout for locations of following steps: 1. Jumpers with the component whenever the components are made through the use of ...ASUS P2B-L/P2B-S/P2B-LS User's Manual For manufacturing simplicity, the jumpers may be shown graphi- Use a grounded wrist strap before handling computer components. Place components on a grounded antistatic pad or on the inside. 2. Install Expansion Cards 5. A "1" is written besides pin 1 on the Motherboard...
... III. Set Jumpers on jumpers with three pins. Jumpers Several hardware settings are separated from other components. 4. See motherboard layout for locations of following steps: 1. Jumpers with the component whenever the components are made through the use of ...ASUS P2B-L/P2B-S/P2B-LS User's Manual For manufacturing simplicity, the jumpers may be shown graphi- Use a grounded wrist strap before handling computer components. Place components on a grounded antistatic pad or on the inside. 2. Install Expansion Cards 5. A "1" is written besides pin 1 on the Motherboard...
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...motherboard but only have both SCSI and IDE devices connected to combine the IDE and SCSI activity into the IDELED. COMBINE (Default) IDELED and SCSILED activity are separate COMBINE IDELED includes SCSILED activity P2B-L/S/LS IDE/SCSI Device Activity LED Selection 14 ASUS P2B-L/P2B-S/P2B...-LS User's Manual R R R III. INSTALLATION 3. SCSI_EN 1 2 3 Enable (Default) SCSI_EN 1 2 3 Disable P2B-L/S/LS Onboard SCSI Setting 5.
...motherboard but only have both SCSI and IDE devices connected to combine the IDE and SCSI activity into the IDELED. COMBINE (Default) IDELED and SCSILED activity are separate COMBINE IDELED includes SCSILED activity P2B-L/S/LS IDE/SCSI Device Activity LED Selection 14 ASUS P2B-L/P2B-S/P2B...-LS User's Manual R R R III. INSTALLATION 3. SCSI_EN 1 2 3 Enable (Default) SCSI_EN 1 2 3 Disable P2B-L/S/LS Onboard SCSI Setting 5.
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...32, 64, 128, 256MB x1 Total System Memory (Max 1024MB) = ASUS Memory Module Example: III. INSTALLATION System Memory SDRAM DIMM (8 chips, Non-ECC) General DIMM Notes • Use only PC100-compliant DIMMs. This motherboard operates at 100MHz, thus most systems will not even boot if non-compliant...and double-sided DIMMs come in 32, 64, 128, 256MB sizes. System Memory (DIMM) This motherboard uses only Dual Inline Memory Modules (DIMMs). Install memory in IV. ASUS P2B-L/P2B-S/P2B-LS User's Manual 17 BIOS SOFTWARE. Sockets are generally thinner with and without ECC. • SDRAM...
...32, 64, 128, 256MB x1 Total System Memory (Max 1024MB) = ASUS Memory Module Example: III. INSTALLATION System Memory SDRAM DIMM (8 chips, Non-ECC) General DIMM Notes • Use only PC100-compliant DIMMs. This motherboard operates at 100MHz, thus most systems will not even boot if non-compliant...and double-sided DIMMs come in 32, 64, 128, 256MB sizes. System Memory (DIMM) This motherboard uses only Dual Inline Memory Modules (DIMMs). Install memory in IV. ASUS P2B-L/P2B-S/P2B-LS User's Manual 17 BIOS SOFTWARE. Sockets are generally thinner with and without ECC. • SDRAM...
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... will only fit in the orientation as shown. DRAM SIMM modules have a higher pin density. 20 Pins 60 Pins 88 Pins Lock (FRONT) P2B-L/S/LS 168-Pin DIMM Memory Sockets The DIMMs must tell your retailer the correct DIMM type before purchasing. Because the number of pins are different... right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on both sides. This motherboard supports four clock signals. 18 ASUS P2B-L/P2B-S/P2B-LS User's Manual SDRAM DIMMs have different pin contacts on each side and therefore have the same pin contacts on the...
... will only fit in the orientation as shown. DRAM SIMM modules have a higher pin density. 20 Pins 60 Pins 88 Pins Lock (FRONT) P2B-L/S/LS 168-Pin DIMM Memory Sockets The DIMMs must tell your retailer the correct DIMM type before purchasing. Because the number of pins are different... right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on both sides. This motherboard supports four clock signals. 18 ASUS P2B-L/P2B-S/P2B-LS User's Manual SDRAM DIMMs have different pin contacts on each side and therefore have the same pin contacts on the...
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... Support Top Bar Heatsink Support Base/Top Bar (Items 4-7) Pentium II Processor Heatsink (Item 8) CPU (Item 9) ASUS P2B-L/P2B-S/P2B-LS User's Manual 19 Without sufficient circulation, the processor could overheat and damage both the processor and the motherboard. INSTALLATION CPU III. INSTALLATION 3. III. Be sure that you have the following 9 items. NOTE: The pictures...
... Support Top Bar Heatsink Support Base/Top Bar (Items 4-7) Pentium II Processor Heatsink (Item 8) CPU (Item 9) ASUS P2B-L/P2B-S/P2B-LS User's Manual 19 Without sufficient circulation, the processor could overheat and damage both the processor and the motherboard. INSTALLATION CPU III. INSTALLATION 3. III. Be sure that you have the following 9 items. NOTE: The pictures...
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... captive nuts to align the notch in place. Do not overtighten the captive nuts. Lock holes Captive nut Captive nut 20 ASUS P2B-L/P2B-S/P2B-LS User's Manual WARNING! Doing so could damage your motherboard. Mount the Pentium II Retention Mechanism: The retention mechanism is properly seated on one way. SEC CPU slot NOTE: Encircled...) III. Be sure to no more than 6±1 inch/pound. INSTALLATION CPU Installing the Pentium II Processor 1. TIP: Orient the mechanism's lock holes toward the motherboard's chipset (see motherboard layout for the location of the AGPset).
... captive nuts to align the notch in place. Do not overtighten the captive nuts. Lock holes Captive nut Captive nut 20 ASUS P2B-L/P2B-S/P2B-LS User's Manual WARNING! Doing so could damage your motherboard. Mount the Pentium II Retention Mechanism: The retention mechanism is properly seated on one way. SEC CPU slot NOTE: Encircled...) III. Be sure to no more than 6±1 inch/pound. INSTALLATION CPU Installing the Pentium II Processor 1. TIP: Orient the mechanism's lock holes toward the motherboard's chipset (see motherboard layout for the location of the AGPset).
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... clamp so only this orientation will overheat. With the heatsink facing the motherboard's chipsets, press the cartridge gently but firmly until they lock (8) Lock Lock Push Clamp (9) The thermal pad & SEC cartridge should not have a gap! Push lock inward (3) ASUS P2B-L/P2B-S/P2B-LS User's Manual 21 The thicker fin must be orientated toward the...
... clamp so only this orientation will overheat. With the heatsink facing the motherboard's chipsets, press the cartridge gently but firmly until they lock (8) Lock Lock Push Clamp (9) The thermal pad & SEC cartridge should not have a gap! Push lock inward (3) ASUS P2B-L/P2B-S/P2B-LS User's Manual 21 The thicker fin must be orientated toward the...
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... SEC cartridge in place by sliding the heatsink support top bar into the bottom groove of the heatsink until it locks into the motherboard. The support base is not, however, necessary if you can connect the heat sensor cable to secure the heatsink (without fan...). This is necessary to the motherboard's CPU heat sensor connector (TRCPU). Secure the heatsink by pushing the SEC cartridge locks outward so that the lock shows through the retention mechanism's lock holes. (3) (3) 5. TRCPU P2B-L/S/LS CPU Thermal Sensor 22 ASUS P2B-L/P2B-S/P2B-LS User's Manual Connect the Heat ...
... SEC cartridge in place by sliding the heatsink support top bar into the bottom groove of the heatsink until it locks into the motherboard. The support base is not, however, necessary if you can connect the heat sensor cable to secure the heatsink (without fan...). This is necessary to the motherboard's CPU heat sensor connector (TRCPU). Secure the heatsink by pushing the SEC cartridge locks outward so that the lock shows through the retention mechanism's lock holes. (3) (3) 5. TRCPU P2B-L/S/LS CPU Thermal Sensor 22 ASUS P2B-L/P2B-S/P2B-LS User's Manual Connect the Heat ...
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... support top bar will not, however, be included in the package, in this manual are those with a lever to the CPU fan connector on motherboard. INSTALLATION CPU The procedures for installing the heatsink without a fan. III. INSTALLATION The heatsinks shown in case you use the heatsink support top bar... is also similar to use a heatsink without a fan. The Elan Vital heatsink, however, comes with three-pin fans that for reference purposes only. ASUS P2B-L/P2B-S/P2B-LS User's Manual 23 The recommended heatsinks for the Pentium II processor are for the heatsink without a fan.
... support top bar will not, however, be included in the package, in this manual are those with a lever to the CPU fan connector on motherboard. INSTALLATION CPU The procedures for installing the heatsink without a fan. III. INSTALLATION The heatsinks shown in case you use the heatsink support top bar... is also similar to use a heatsink without a fan. The Elan Vital heatsink, however, comes with three-pin fans that for reference purposes only. ASUS P2B-L/P2B-S/P2B-LS User's Manual 23 The recommended heatsinks for the Pentium II processor are for the heatsink without a fan.
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... may use , leaving 6 IRQs free for your expansion card and make any necessary hardware or software settings for expansion cards. Unplug your motherboard and expansion cards. Replace the computer system's cover. 6. Read the documentation for your expansion card, such as jumpers. 2. Currently, there...PCI cards. Ensure that you removed above. 5. Remove your motherboard has audio onboard, an extra 3 IRQs will experience problems when those two devices are available to use at the same time. 24 ASUS P2B-L/P2B-S/P2B-LS User's Manual Both ISA and PCI expansion cards may ...
... may use , leaving 6 IRQs free for your expansion card and make any necessary hardware or software settings for expansion cards. Unplug your motherboard and expansion cards. Replace the computer system's cover. 6. Read the documentation for your expansion card, such as jumpers. 2. Currently, there...PCI cards. Ensure that you removed above. 5. Remove your motherboard has audio onboard, an extra 3 IRQs will experience problems when those two devices are available to use at the same time. 24 ASUS P2B-L/P2B-S/P2B-LS User's Manual Both ISA and PCI expansion cards may ...
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... (Direct Memory Access) channel. An IRQ number is added to set the jumpers on this motherboard complies with the BIOS, you need to support a new generation of the BIOS Setup utility. R P2B-L/S/LS Accelerated Graphics Port (AGP) ASUS P2B-L/P2B-S/P2B-LS User's Manual 25 For PnP cards, IRQs are handled the same way as the...
... (Direct Memory Access) channel. An IRQ number is added to set the jumpers on this motherboard complies with the BIOS, you need to support a new generation of the BIOS Setup utility. R P2B-L/S/LS Accelerated Graphics Port (AGP) ASUS P2B-L/P2B-S/P2B-LS User's Manual 25 For PnP cards, IRQs are handled the same way as the...
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...pin Female) This connection is detected. PS/2 Mouse Connector (6-pin Female) The system will direct IRQ12 to your motherboard. P2B-L/S/LS PS/2 Mouse (6-pin Female) 26 ASUS P2B-L/P2B-S/P2B-LS User's Manual This connector will cause damage to the PS/2 mouse if one is for connectors or power ...sources. P2B-L/S/LS PS/2 Keyboard (6-pin Female) 2. INSTALLATION 5. Placing jumper caps over these will not allow standard AT size (...
...pin Female) This connection is detected. PS/2 Mouse Connector (6-pin Female) The system will direct IRQ12 to your motherboard. P2B-L/S/LS PS/2 Mouse (6-pin Female) 26 ASUS P2B-L/P2B-S/P2B-LS User's Manual This connector will cause damage to the PS/2 mouse if one is for connectors or power ...sources. P2B-L/S/LS PS/2 Keyboard (6-pin Female) 2. INSTALLATION 5. Placing jumper caps over these will not allow standard AT size (...
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... SE Mode Ultra2 SCSI Connector Wide SCSI Connector Adaptec AIC-3860 Chipset Single-Ended Devices CD-ROM Scanner Tape P2B-L/S/LS Mixed Ultra2 and Single-Ended Device Configuration Ultra2 SCSI uses the same connectors and cables as an end device...point-to an SE speed and cable length. Fast (50-pin)/Wide (68-pin)/Ultra2 (68-pin) SCSI Connectors This motherboard has onboard 50-Pin Fast SCSI connector for 8-bit SCSI devices, 68-Pin Wide SCSI connector for 16-bit SCSI devices...LVD segment. III. R R III. When an SE device is easy and cost-effective. 30 ASUS P2B-L/P2B-S/P2B-LS User's Manual
... SE Mode Ultra2 SCSI Connector Wide SCSI Connector Adaptec AIC-3860 Chipset Single-Ended Devices CD-ROM Scanner Tape P2B-L/S/LS Mixed Ultra2 and Single-Ended Device Configuration Ultra2 SCSI uses the same connectors and cables as an end device...point-to an SE speed and cable length. Fast (50-pin)/Wide (68-pin)/Ultra2 (68-pin) SCSI Connectors This motherboard has onboard 50-Pin Fast SCSI connector for 8-bit SCSI devices, 68-Pin Wide SCSI connector for 16-bit SCSI devices...LVD segment. III. R R III. When an SE device is easy and cost-effective. 30 ASUS P2B-L/P2B-S/P2B-LS User's Manual