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R
P/I-P55T2P4
Pentium Motherboard
USER'S MANUAL
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USER'S NOTICE No part of this product, including the product and software may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any lan- guage in any form by any means without the express written permission of ASUSTeK COMPUTER INC. (hereinafter referred to as ASUS) except documentation kept by the purchaser for backup purposes. Specifications are subject to change without notice. ASUS provides this manual “as is” without warranty of any kind, either expre
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ASUS CONTACT INFORMATION ASUSTeK COMPUTER INC. Marketing Info: Address: 150 Li-Te Road, Peitou, Taipei, Taiwan, ROC Telephone: 886-2-894-3447 Fax: 886-2-894-3449 Email: info@asus.com.tw Technical Support: Fax: 886-2-895-9254 BBS: 886-2-896-4667 Email: tsd@asus.com.tw WWW: http://www.asus.com.tw/ Gopher: gopher.asus.com.tw FTP: ftp.asus.com.tw/pub/ASUS ASUS COMPUTER INTERNATIONAL Marketing Info: Address: 721 Charcot Avenue, San Jose, CA 95131, USA Telephone: 1-408-474-0567 Fax: 1-408-474-0568 Ema
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CONTENTS I. INTRODUCTION.........................................................1 How this manual is organized .......................................................... 1 Item Checklist .................................................................................. 1 II. FEATURES ..................................................................2 Features of the ASUS Motherboard ................................................. 2 Parts of the ASUS Motherboard .............................
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CONTENTS Details of Standard CMOS Setup: ........................................ 31 BIOS Features Setup .................................................................. 34 Details of BIOS Features Setup:........................................... 34 Chipset Features Setup ............................................................... 37 Power Management Setup.......................................................... 40 Details of Power Management Setup: .................................. 40
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FCC & DOC COMPLIANCE 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. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provid
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I. INTRODUCTION How this manual is organized This manual is divided into the following sections: I. Introduction: Manual information and checklist II. Features: Information and specifications concerning this product III. Installation: Instructions on setting up the motherboard. IV. BIOS Setup: BIOS software setup information. V. Software: Information on the included support software VI. ASUS SCSI: Installation of an optional ASUS SCSI cards VII. ASUS I-A16C: Installation of an optional 16-bit A
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II. FEATURES (Features) II. FEATURES Features of the ASUS Motherboard The ASUS P/I-P55T2P4 is carefully designed for the demanding PC user who wants a great many features in a small package. This motherboard: • Easy Installation: Is equipped with BIOS that supports auto detection of hard drives and Plug and Play to make setup of hard drives and expansion cards virtually automatic. ® ™ • Versatile Processor Support: Intel Pentium 75-233MHz (P55C-MMX , P54C/ ® ® ® ® ™ P54CS), IBM /Cyrix 6x86-
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II. FEATURES • PCI Bus Master IDE Controller: Comes with an onboard PCI Bus Master IDE controller with two connectors that supports four IDE devices in two chan- nels, provides faster data transfer rates, and supports Enhanced IDE devices such as Tape Backup and CD-ROM drives. This controller supports PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2. BIOS supports IDE CD-ROM and SCSI bootup. • Optional IrDA and PS/2 Mouse Connector: This motherboard supports an optional infrared port module
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SIMM Socket 4 (Bank 1) SIMM Socket 3 (Bank 1) SIMM Socket 2 (Bank 0) SIMM Socket 1 (Bank 0) Board Power Input P8 P9 Secondary IDE Primary IDE Pipelined Burst Level 2 Cache Expansion Slot Floppy Drives TAG SRAM Upgrade PCI Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4 MediaBus 2.0 JP11 JP12 JP8 JP9 ISA Slot 1 JP10 ISA Slot 2 Case Connector ISA Slot 3 III. INSTALLATION (Map of Board) III. INSTALLATION Map of the ASUS Motherboard Keyboard PS/2 Mouse JP2 Boot Block Write (Dis/En) Universal Serial Bus
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III. INSTALLATION Jumpers 1) JP1 p. 7 Multi-I/O Selection (Enable/Disable) 2) JP2 p. 7 Flash ROM Boot Block Program (Disable/Enable) 3) JP5 p. 8 Total Level 2 Cache Size Setting (256/512KB) 4) JP7 p. 8 Real Time Clock RAM (Operation/Clear Data) 5) JP17 p. 9 Single Power Plane CPU Voltage Selection 6) JP20 p. 9 Dual Power Plane CPU Voltage Selection 7) JP8, JP9,JP10 p. 10 CPU External Clock (BUS) Frequency Selection 8) JP11, JP12 p. 10 CPU:BUS Frequency Ratio 9) JP4 p. 11 Memory Cacheable Size (6
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III. INSTALLATION (Jumpers) III. INSTALLATION Installation Steps Before using your computer, you must complete the following steps: 1. Set Jumpers on the Motherboard 2. Install DRAM and SRAM Modules 3. Install the Central Processing Unit (CPU) 4. Install Expansion Cards 5. Connect Ribbon Cables, Cabinet Wires, and Power Supply 6. Setup the BIOS Software 1. Jumpers Several hardware settings are made through the use of jumper caps to connect jumper pins (JP) on the motherboard. See "Map of the M
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III. INSTALLATION Jumper Settings 1. Onboard Multi-I/O Selection (JP1) You can selectively disable each onboard Multi-I/O item (floppy, serial, paral- lel, and IrDA) through BIOS (see CHIPSET FEATURES SETUP) or disable all Multi-I/O items at once with the following jumper in order to use your own Multi-I/O card. Selections JP1 Enable [1-2] (Default) Disable [2-3] JP1 JP1 1 1 2 2 3 3 Enable (Default) Disabled Multi I/O Setting (Enable / Disable) 2. Flash ROM Boot Block Programming (JP2) This sets
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III. INSTALLATION (Jumpers) III. INSTALLATION 3. Total Level 2 Cache Size Setting (JP5) This jumper sets the total amount of L2 cache that is present. If you have both onboard cache chips (see "Map of Motherboard" for locations) and a Cache Expansion Slot, then you have 256KB. If you only have onboard cache chips, then you have 512KB. An "ASUS" or "COAST" cache module can be used to upgrade the 256KB version to 512KB. If there is no onboard cache, you may install a cache module of either 2
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III. INSTALLATION 5-6. Single/Dual Power Plane CPU Voltage Regulator Selections The following jumpers set the voltage supplied to the CPU. Determine whether your CPU has a Single Power Plane or Dual Power Planes and then the volt- age that it uses. When a single power plane CPU is installed, the dual power plane selections will be automatically disabled. When a dual power plane CPU is installed, the single power plane selections will be automatically disabled. You may have one jumper on the S
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JP8 JP11 JP9 JP12 JP10 JP8 JP11 JP9 JP12 JP10 JP8 JP11 JP9 JP12 JP10 JP11 JP8 JP12 JP9 JP10 JP8 JP9 JP10 III. INSTALLATION (Jumpers) III. INSTALLATION 7. CPU External (BUS) Frequency Selection (JP8, JP9, JP10) These jumpers tell the clock generator what frequency to send to the CPU. These allow the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed). 8. CPU to BUS Frequency Ratio (JP11, JP
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III. INSTALLATION Compatible Cyrix CPU Identification The only Cyrix CPU that is supported on this motherboard is labeled Cyrix 6x86-PR166+ but must be Revision 2.7 or later. Look on the underside of the CPU for the serial number. The number should read G8DC6620A or later. 9. Memory Cacheable Size (JP4) The default of 64MB uses only the onboard TAG SRAM which allows cacheable memory up to 64MB. If you install DRAM above 64MB and wish to allow cacheable memory above 64MB, you need to install a
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III. INSTALLATION (Memory) III. INSTALLATION 2. System Memory (DRAM & SRAM) This motherboard supports four 72-pin SIMMs of 4MB, 8MB, 16MB, 32MB, or 64MB to form a memory size between 8MB to 256MB. The DRAM can be either 60ns or 70ns Fast Page Mode (Asymmetric or Symmetric) or EDO. To support ECC, you must use true (opposed to phantom parity generated by logic chips) 36-bit parity-type DRAM (e.g. 8 chips + 4 parity chips) in pairs for all modules. Mixing 32-bit non-parity DRAM (e.g. 8 chips)
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III. INSTALLATION DRAM Memory Installation Procedures: 1. The SIMM memory modules will only fit in one orientation as shown because of a "Plastic Safety Tab" on one end of the SIMM sockets which requires the "Notched End" of the SIMM memory modules. 1234 Bank0 Bank1 Notched End 72 Pin SIMM DRAM Sockets & Module 2. Press the memory module firmly into place starting from a 45 degree angle making sure that all the contacts are aligned with the socket. 3. With your finger tips, rock the memory modul
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III. INSTALLATION (External Cache) III. INSTALLATION Static RAM (SRAM) for Level 2 (External) Cache The motherboard you purchase may have either 0KB, 256KB, or 512KB onboard. If you have both onboard cache chips (see "Map of Motherboard" for locations) and a Cache Expansion Slot, then you have 256KB. If you only have onboard cache chips, then you have 512KB. An "ASUS" or "COAST" cache module can be used to upgrade the 256KB version to 512KB. The 512KB version cannot be upgraded any further.
