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Pentium P55-IT User Manual

Isa pci motherboards with onboard pci ide and super multi-i/o
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Pentium
P55-IT
ISA PCI
M o th e rB o a rd
with Onboard PCI IDE and Super Multi-I/O.
TRADEMARK
All products and company names are
trademarks or registered trademarks of
their respective holders.

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Summary of Contents for Pentium P55-IT

  • Page 1 Pentium P55-IT ISA PCI M o th e rB o a rd with Onboard PCI IDE and Super Multi-I/O. TRADEMARK All products and company names are trademarks or registered trademarks of their respective holders.

  • Page 2: Table Of Contents

    Contents Page Chapter 1 - Introduction ..........1-1 P55-IT Board Layout............1-2 Chapter 2 - Hardware Design ......... 2-1 Motherboard Layout .............2-1 Connectors and Jumpers ............2-2 System Memory configuration ..........2-4 Cache Memory configuration ..........2-5 Integrated PCI Bridge ............2-6 Chapter 3 - Award BIOS ..........3-1 Standard CMOS Setup ............3-2...
  • Page 3 NOTE : The "LOAD SETUP DEFAULTS" function loads the system default data directly from ROM and initialize associated hardware properly. This function will be necessary when you accept this motherboard, or the system CMOS data is corrupted. ROM PCI/ISA BIOS (2A59CPA9) CMOS SETUP UTILITY AWARD SOFTWARE, INC.

  • Page 4: Chapter 1 - Introduction

    Support four 16 bits ISA slots, four 32 bits PCI slots, and provides two independent high performance PCI IDE interface capable of supporting PIO Mode 3 and Mode 4 devices. The P55-IT supports four PCI Bus Masters and a jumperless PCI INT# control scheme which reduces configuration confusion when plug in PCI I/O controller card(s).
  • Page 5 1-2 P55-IT P55-IT Layout PS/2 MOUSE Keyboard BIOS CONN. JP12 37C665 JP15 Power Conn. Intel 82371 39 40 JPS1 BANK0 BANK1 JPS2 82438 Intel 82437 < < +12V 82438 < < < < < < KEYLOCK SPK. RESET TB-SW TB-LED...

  • Page 6: Chapter 2 - Hardware Design

    The P55-IT supports Onboard two PCI IDE connectors, and detects IDE harddisk type by BIOS utility automatic. The P55-IT supports Award Plug & Play BIOS for the ISA and PCI cards. The BIOS can be located in Flash EPROM. The advantage of having Flash EPROM is...

  • Page 7: Connectors And Jumpers

    P55-IT 2-2 Connectors and Jumpers This section describes all of the connectors and jumpers equipped in the motherboard. Please refer to Figure 1-1 for actual location of each connector and jumper. KeyLock - Keyboard lock switch & Power LED connector.
  • Page 8 Hardware Design CPU Install : 1-2 for Intel Pentium P54C, P54CS CPU (Default). 2-3 for Intel Pentium P55C/P55CT CPU. Onboard IDE 1: 1-2 for Primary IDE 1 Interrupt IRQ14. 2-3 for None Onboard IDE 2 : 1-2 for Secondary IDE 2 Interrupt IRQ15.

  • Page 9: System Memory Configuration

    ( 3 ) x ( 2.5 ) * The JP7 and JP9 be used to setting the faster Pentium Processor in the feature. 2-3 System Memory Configuration The P55-IT supports different type of settings for the system memory. There is no jumper nor connector needed for memory configuration.

  • Page 10: Cache Memory Configuration

    2-4 Cache Memory Configuration The second level (L2) of cache is installed in the motherboard to increase the system performance. The P55-IT supports different type of combinations for the cache installation. The COAST (Cache-On-A-STick. The cache modules has a TAG SRAM.) solution provides Onboard flexibility, allowing Onboard to accom- modate 256KB and 512KB asynchronous, burst and piplined burst SRAM modules.

  • Page 11: Integrated Pci Bridge

    P55-IT 2-5 Integrated PCI Bridge The P55-IT utilizes Intel's Triton 82430 PCIset chipset to support Intel Pentium P54C/P54CS/P55C/P55CT Processor PCI/ISA system. The Intel Triton 82430FX PCIset chipset consists of the 82437FX Triton system controller (TSC), two 82438FX Triton Data Path (TDP) devices, and one 82371FB PCI ISA/IDE Accel- erator (PIIX) bridge chip.
  • Page 12 8M x 32 (32 MB) 8M x 32 (32 MB) 128MB NOTE : 1. P55-IT support both Fast Page DRAM or EDO DRAM SIMMs, but they cannot be mixed within the same memory bank. 2. SIMMs may be parrity(x 36) or non parity (x 32).

  • Page 13: Award Bios Setup

    AWARD BIOS 3-1 CHAPTER 3 AWARD BIOS SETUP Award's ROM BIOS provides a built-in Setup program which allows user modify the basic system configuration and hardware parameters. The modified data will be stored in a battery-backed CMOS RAM so data will be retained even when the power is turned off.

  • Page 14: Standard Cmos Setup

    This menu shows all of the manufacturer's default values of P55-IT. Again, user can move the cursor by pressing direction keys and <PgDn> or <PgUp> keys to modify the parameters.
  • Page 15 AWARD BIOS 3-3 ROM PCI/ISA BIOS (2A59CPA9) BIOS FEATURES SETUP AWARD SOFTWARE, INC. Virus Warning : Disabled Video BIOS Shadow : Enabled CPU Internal Cache : Enabled C8000-CBFFF Shadow : Disabled External Cache : Enabled CC000-CFFFF Shadow : Disabled Quick Power On Self Test : Enabled D0000-D3FFF Shadow...
  • Page 16 3-4 CHAPTER 3 Boot Sequence: This category determines which drive computer searches first for the DOS(Disk Operating System). Default value is A,C. A,C : System will first search for floppy disk drive then hard disk drive. C,A : System will first search for hard disk drive then floppy disk drive. Swap Floppy Drive: The swap floppy drive.
  • Page 17 AWARD BIOS 3-5 Typematic Delay(Msec) When holding a key, the time between the first and second character displayed. 250 : 250msec. 500 : 500 msec. 750 : 750 msec. 1000: 1000 msec. Security Option: This category allows you to limit access to the system and Setup, or just to Setup.

  • Page 18: Chipset Features Setup

    3-6 CHAPTER 3 3-3 CHIPSET FEATURES SETUP Choose the "CHIPSET FEATURES SETUP" in the CMOS SETUP UTILITY menu to display following menu. ROM PCI/ISA BIOS (2A59CPA9) CHIPSET FEATURES SETUP AWARD SOFTWARE, INC. PCI Concurrency : Disable PCI Streaming : Disabled DRAM Timing : 60ns PCI Bursting...
  • Page 19 AWARD BIOS 3-7 Memory Hole At 15M-16M: The default value is Disabled. Disabled: Normal Setting. Enabled : This field enableds the main memory (15~16MB) remap to ISA BUS. IDE HDD Block Mode: The default value is Enabled. Enabled : Enabled IDE HDD Block Mode. The HDD transfer rate is better than Disable.
  • Page 20 3-8 CHAPTER 3 PCI Bursting: The default value is Enabled. Enabled : Enable PCI BUS Concurrency/Streaming/Bursting Access timing. Disabled : Disable PCI BUS Concurrency/Streaming/Bursting Access timing. Onboard FDC Controller: The default value Enabled. Enabled: Enable the Onboard SMC CHIP's floppy drive interface controller. Disabled: Disable the Onboard SMC CHIP's floppy drive interface controller.

  • Page 21: Power Management Setup

    AWARD BIOS 3-9 3-4 POWER MANAGEMENT SETUP Choose the "POWER MANAGEMENT SETUP" in the CMOS SETUP UTILITY to display the following screen. This menu allows user to modify the power management parameters and IRQ signals. In general, these parameters should not be changed unless it's absolutely necessary. ROM PCI/ISA BIOS (2A59CPA9) POWER MANAGEMENT SETUP AWARD SOFTWARE, INC.
  • Page 22 "PM events" occurred. Valid range is from 1 minute up to 1 hour. System Suspend This function works only when the Pentium CPU is installed. The timer starts to count when "System Standby" mode timer timed out and no "PM Events"...

  • Page 23: Pci Configuration Setup

    AWARD BIOS 3-11 PM Events: AWARD BIOS defines 15 PM Events in the power management mode (Doze, standby & suspend). The user can initial any PM Events to be "Enable" or "Disable". When the system detects all of the enabled events do not have any activity, it will start the system Doze timer first if the "Power Management"...
  • Page 24 3-12 CHAPTER 3 PnP BIOS Auto-Config: This filed is Used to chose about the BIOS to set up the Legacy. ISA cards (ISA Card which do not have plug and play functions), PCI cards and ISA Plug and Play cards without conflicting, The default value is Disabled. Enabled: The BIOS will depend upon information provided Plug and Play software (Configuration Manager and ISA Configuration Utility (ICU)) to ensure that there are no conflict with Legacy ISA cards.

  • Page 25: Load Setup Defaults

    AWARD BIOS 3-13 3-6 LOAD SETUP DEFAULTS The "LOAD SETUP DEFAULTS" function loads the system default data directly from ROM and initialize associated hardware properly. This function will be necessary only when the system CMOS data is corrupted. ROM PCI/ISA BIOS (2A59CPA9) CMOS SETUP UTILITY AWARD SOFTWARE, INC.

  • Page 26: Ide Hdd Auto Detection

    3-14 CHAPTER 3 3-8 IDE HDD AUTO DETECTION The "IDE HDD AUTO DETECTION" utility is a very useful tool especially when you do not know which kind of hard disk type you are using. You can use this utility to detect the correct disk type installed in the system automatically.
  • Page 27 AWARD BIOS 3-15 LBA (Logical Block Addressing) mode A new HDD accessing method to overcome the 528 Megabyte bottleneck. The number of cylinders, heads & sectors shown in setup may not be the number physically contained in the HDD. During HDD accessing, the IDE controller will transform the logical address described by sector, head &...

  • Page 28: Save & Exit Setup

    3-16 CHAPTER 3 Note: To support LBA or LARGE mode of HDDs, there must be some softwares involved. All these softwares are located in the Award HDD Service Routine (1NT 13h). It may be failed to access a HDD with LBA (LARGE) mode selected if you are running under a Operating System which replaces the whole 1NT 13h.

  • Page 29: I/O & Memory Map

    TECHNICAL INFORMATION 4-1 Chapter 4 Technical Information 4-1 I/O & MEMORY MAP MEMORY MAP Address Range Size Description [00000-7FFFF] 512K Conventional memory [80000-9FBFF] 127K Extended Conventional memory [9FC00-9FFFF] Extended BIOS data area if PS/2 mouse is installed [A0000-C7FFF] 160K Available for Hi DOS memory [C8000-DFFFF] Available for Hi DOS memory and adapter ROMs [E0000-EEFFF]...

  • Page 30: Time & Dma Channels Map

    4-2 CHAPTER 4 4-2 TIME & DMA CHANNELS MAP TIME MAP: TIMER Channel 0 System timer interrupt. TIMER Channel 1 DRAM REFRESH request. TIMER Channel 2 SPEAKER tone generator. DMA CHANNELS : DMA Channel 0 Available. DMA Channel 1 Onboard ECP (Option). DMA Channel 2 FLOPPY DISK (SMC CHIP).

  • Page 31: Rtc & Cmos Ram Map

    TECHNICAL INFORMATION 4-3 4-4 RTC & CMOS RAM MAP RTC & CMOS : Seconds. Second alarm. Minutes. Minutes alarm. Hours. Hours alarm. Day of week. Day of month. Month. Year. Status register A. Status register B. Status register C. Status register D. Diagnostic status byte.

  • Page 32: Appendix A: Post Codes

    4-4 CHAPTER 4 APPENDIX A: POST CODES ISA POST codes are typically output to port address 80h. POST(hex) DESCRIPTION 01-02 Reserved. Turn off OEM specific cache, shadow. 1.Initialize EISA registers (EISA BIOS only). 2.Initialize all the standard devices with default values Standard devices includes. -DMA controller (8237).
  • Page 33 TECHNICAL INFORMATION 4-5 POST(hex) DESCRIPTION Initialization of the BIOS Data Area. (40:ON - 40:FF) 1.Program some of the Chipset's value according to Setup. (Early Setup Value Program) 2.Measure CPU speed for display & decide the system clock speed. 3.Video initialization including Monochromc, CGA, EGA/VGA. If no display device found, the speaker will beep.
  • Page 34 4-6 CHAPTER 4 POST(hex) DESCRIPTION 1.Display the Award Plug & Play BIOS Extension message. (PnP BIOS only) 2.Program all onboard super I/O chips (if any) including COM ports, LPT ports, FDD port ... according to setup value. 33-3B Reserved. Set flag to allow users to enter CMOS Setup Utility. 1.Initialize Keyboard.
  • Page 35 TECHNICAL INFORMATION 4-7 POST(hex) DESCRIPTION 1.Initialize all ISA ROMs. 2.Later PCI initializations. (PCI BIOS only) -assign IRQ to PCI devices. -initialize all PCI ROMs. 3.PnP Initialzations. (PnP BIOS only) -assign IO, Memory, IRQ & DMA to PnP ISA devices. -initialize all PnP ISA ROMs. 4.Program shadows RAM according to Setup settings.

  • Page 36: Appendix B: I/O Connector

    4-8 CHAPTER 4 APPENDIX B: I/O CONNECTORS J10: PS/2 MOUSE CONNECTOR: Signal Name Data (Red Wire) Clock(Blue Wire) GND(Green Wire) VCC(Yellow Wire) J13,J14: Serial Ports Connector Signal Name Signal Name SOUT N.C. J15: Parallel Port Connector Signal Name Signal Name STROBE- AUTO FEED- Data Bit 0...
  • Page 37 TECHNICAL INFORMATION 4-9 J11: Floppy Disk Connector Signal Name Signal Name Ground FDHDIN Ground Reserved Ground FDEDIN Ground Index- Ground Motor Enable Ground Drive Select B- Ground Drive Select A- Ground Motor Enable Ground DIR- Ground STEP- Ground Write Data Ground Write Gate Ground...

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