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Abit IT5 Series User Manual

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IT5V ..................................................................................... 1-2
l Specifications .................................................................... 1-2
l Layout diagram................................................................. 1-4
l System block diagram....................................................... 1-5
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IT5H ..................................................................................... 1-6
l Specifications .................................................................... 1-6
l Layout diagram................................................................. 1-8
l System block diagram....................................................... 1-9
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Standard External Connectors ................................................ 2-3
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Jumpers and Switches.......................................................... 2-10
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Presentation and Installation of the CPU............................... 2-11
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Installing Pipeline Burst SRAM............................................. 2-14
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CPU setup ¡i CPU SOFT MENU™ ¡j ................................ 3-4
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Standard CMOS Setup Menu.............................................. 3-10
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BIOS Features Setup Menu ................................................. 3-12
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Chipset Features Setup Menu............................................... 3-18
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Power Management Setup Menu.......................................... 3-20
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PCI & Onboard I/O Setup................................................... 3-24
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Load BIOS Defaults ............................................................ 3-30
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Load Setup Defaults............................................................. 3-30
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Password Setting ................................................................. 3-31
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IDE HDD Auto Detection.................................................... 3-32
Part Number:MN-090-B41-91

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  • Page 1: Table Of Contents

    Table of Contents Chapter 1 Introduction of IT5 Series Features ¬ IT5V ..................1-2 l Specifications ..............1-2 l Layout diagram..............1-4 l System block diagram............1-5 IT5H ..................1-6 l Specifications ..............1-6 l Layout diagram..............1-8 l System block diagram............1-9...
  • Page 2 Appendix A Quick Installation Appendix B Intel Pentium CPUs Appendix C AMD-K5 CPUs Appendix D Cyrix 6x86 CPUs Appendix E General Discussion about HDD Installation Appendix F Technical Support Appendix G Flash BIOS User Instructions...

  • Page 3: Chapter 1 Introduction Of It5 Series Features

    “Soft Switch” that allows the user to set CPU speed and operating voltage with ease. The IT5 series uses Intel 430VX and 430HX series chipsets, and has 256K or 512K Level-2 Pipeline Burst SRAM on board. It also provides an extension slot allowing the user to upgrade Pipeline Burst SRAM to 512K.

  • Page 4: It5V

    Chapter 1 ¬ IT5V l Specifications: 1. CPU frequency and voltage setup with CPU “SOFT MENU™ ” l Setup of the mainboard’s frequency and voltage without DIP Switches or Jumpers. l Modification of CPU operating voltage and frequency through software configuration. l Modification of CPU operating voltage and frequency directly on screen.

  • Page 5: Award Bios

    Introduction of IT5 Series Features 6. System BIOS l AWARD BIOS l Supports Plug-and-Play (PnP) l Supports Advanced Power Management (APM) l Supports Desktop Management Interface (DMI) 7. Multi I/O features l Two Universal Serial Bus (USB) ports l Four fast IDE channels (PIO mode 0~4 and Bus Master) l One EPP/ECP parallel port and one 16550 serial port l Two floppy disk drive connectors (FDD) (360K, 720K, 1.2M,...

  • Page 6: Layout Diagram

    Chapter 1 Layout diagram Fig 1-1 Layout diagram...

  • Page 7: System Block Diagram

    Introduction of IT5 Series Features System block diagram Pentium Processor 3.3V Host BUS Control Address Second Level Data Cache Ctrl Data Main Addr CACHE Tag Ctrl Memory Ctrl (SRAM) TIO[0..7] (DRAM) Plink TXD Ctrl PCI BUS Control Address/Data PCI Device(s) Fast CD ROM &...

  • Page 8: It5H

    Chapter 1 - IT5H l Specifications: 1. CPU frequency and voltage configuration with CPU “SOFT MENU™ ” l Setup of the mainboard’s frequency and voltage without DIP Switches or Jumpers. l Modification of CPU operating voltage and frequency through software configuration. l Modification of CPU operating voltage and frequency directly on screen.
  • Page 9 Introduction of IT5 Series Features 6. System BIOS l AWARD BIOS l Supports Plug-and-Play (PnP) l Supports Advanced Power Management (APM) l Supports Desktop Management Interface (DMI) 7. Multi I/O features l Two Universal Serial Bus (USB) ports l Four fast IDE channels (PIO mode 0~4 and Bus Master) l One EPP/ECP parallel port and one 16550 serial port l Two floppy disk drive connectors (FDD) (360K, 720K, 1.2M,...

  • Page 10: Layout Diagram

    Chapter 1 l Layout diagram Fig. 1-3 Layout diagram...

  • Page 11: System Block Diagram

    Introduction of IT5 Series Features System block diagram Pentium Processor 3.3V Host BUS Control Address Data Second Level Cache Addr Ctrl Main CACHE Tag Ctrl Ctrl Memory (SRAM) (DRAM) TIO[0..7] Data TIO[8..10] PCI BUS Control Address/Data Fast PCI Device(s) CD ROM &...
  • Page 12 1-10 Chapter 1 Fig. 1-4 System block diagram...
  • Page 13 Introduction of IT5 Series Features 1-11...

  • Page 15: Chapter 2 Installing The Mainboard

    Installing the Mainboard Chapter 2 Installing the Mainboard This mainboard series not only provides all standard equipment for classic personal computers, but also provides great flexibility for meeting future upgrade demands. This chapter will introduce step by step all the standard equipment and will also present, as completely as possible future upgrade capabilities.
  • Page 16 Chapter 2 & User friendly instructions Our objective is to enable the novice computer user to perform the installation by themselves. We have attempted to write this document in a very clear, concise and descriptive manner to help overcome any obstacles you may face during installation.

  • Page 17: Standard External Connectors

    Installing the Mainboard ¬ Standard External Connectors Inside the case of any computer several cables and plugs have to be connected. These cables and plugs are usually connected one-by-one to connectors located on the mainboard. You need to carefully pay attention to any connection orientation the cables may have and, if any, notice the position of the first pin of the connector.
  • Page 18 Chapter 2 The “keylock switch” is used to lock the computer’ s Computer Knowledge keyboard. This disables the keyboard so that unauthorized persons cannot use it. When this function is in use, you will need to use the unlock key to activate the keyboard. PN1 - IDE LED connector This connector has a specific orientation.
  • Page 19 Installing the Mainboard PN1 - Hardware Suspend switch There is no specific orientation. Connect the two-thread hardware suspend plug to the PN1 connector pins on the mainboard. Since most cases do not support this feature, most of you ignore this instruction. Furthermore, this feature is not necessary as it is already a part of the mainboard.
  • Page 20 Chapter 2 PN2 - Turbo switch LED connector This connector has a specific orientation. Connect the two-thread turbo switch LED plug to the PN2 connector pins on the mainboard. Pin number Name or significance of signal Anode terminal of Turbo LED Cathode terminal of Turbo LED Computer The “hardware Turbo LED”...
  • Page 21 Installing the Mainboard FAN - CPU Fan power connector This has a specific orientation. Connect the three-threads CPU fan cable to the Fan connector. Pin number Name of the signal or signification Ground +12V Ground Mouse - PS/2 Mouse connector Watch the pin number and the orientation his has a specific orientation.
  • Page 22 Chapter 2 J2 - Keyboard Connector This has an orientation pin. Connect your keyboard connector to connector J2 on the mainboard. Pin number Name of the signal or signification Keyboard clock Keyboard data No connection Ground +5VDC P8/P9 - Power input Connectors Watch the pin number and the orientation These have a specific orientation.

  • Page 23: Installing The Mainboard

    Installing the Mainboard IR - Infrared remote Connector Watch the pin number and the orientation This has a specific orientation. Your mainboard supports this feature, but you must buy the infrared remote device as an option. Pin number Name of the signal or signification +5VDC No connection Receive data...

  • Page 24: Jumpers And Switches

    2-10 Chapter 2 - Jumpers and Switches CCMOS : Delete the contents of the CMOS This jumper is set on pins 1 and 2 at the factory, in order for the computer to function normally, so please do not change this setting. The main feature of this jumper is to solve situations where the computer crashes due to improper usage.

  • Page 25: Presentation And Installation Of The Cpu

    Installing the Mainboard 2-11 ® Presentation and Installation of the CPU Jumperless Mainboard (Mainboard with no DIP Switch or Jumper) This mainboard series can be installed with CPU without the hardware setting of the CPU. On other boards, when you want to install the CPU, you have, more or less, to setup some jumpers or DIP switches.
  • Page 26 2-12 Chapter 2 multiplier factors.
  • Page 27 Installing the Mainboard 2-13 Clock multiplier factor The real operation clock within the CPU is the multiple of the external clock. We refer to t h is factor as the clock multiplier factor. The four factors possible are 1.5, 2, 2.5 and 3. The factor differs from one CPU to another.
  • Page 28 2-14 Chapter 2 P-Rating The P-Rating was defined by some manufacturers other than Intel to rate the performance of their CPU in comparison with Intel Pentium CPUs. For instance, Cyrix 6x86 P166+ has a higher actual speed compared with Intel Pentium P166, its internal clock needs only 133MHz versus 166MHz for Intel’...

  • Page 29: Installing Pipeline Burst Sram

    Installing the Mainboard 2-15 ¯ Installing Pipeline Burst SRAM his mainboard features a 256K or 512K cache memory. It also features a cache memory extension socket (COAST) in order to permit you to upgrade 256K cache to 512K, and this with only one JC1 to choose from. Installation is very easy.

  • Page 30: Installing System Memory¡I Dram Memory¡J

    2-16 Chapter 2 ° Installing System Memory¡i DRAM Memory¡j When this mainboard was designed, we not only have taken into account the present needs, but we have also tried to care about demands for future upgrades: 1. Two 168-pin DIMM sockets: Within 3 to 5 years, you may not be able to buy 72-pin SIMM memory modules anymore, just as now you cannot find 30-pin SIMM memory modules anymore.
  • Page 31 Installing the Mainboard 2-17 IT5V¡GNo support. Since the Intel 430VX chipset does not support this feature, since the memory error check and correction feature may not be effective, and since you cannot easily find memory modules with memory check and correction feature, this mainboard does not support it.
  • Page 32 2-18 Chapter 2 l ¡i SIMM1 and SIMM2¡juse the same memory type, and ¡i SIMM3 and SIMM4¡j c an use the same type, or a different type, in order to permit you to obtain the best speed configuration for each “single” pair, and to make the system work at its maximum capacity.
  • Page 33 Installing the Mainboard 2-19 Scenario 1: You use only 72-pin SIMM modules: l The maximum memory size is 128M bytes. l Support possible for single density or double density memory modules. l Memory modules supported: 1Mx32¡i 4M¡j , 2Mx32 ¡i 8M¡j , 4Mx32¡i 16M¡j or 8Mx32¡i 32M¡j . l ¡i SIMM1 and SIMM2¡j is the first pair, ¡i SIMM3 and SIMM4¡j is the second pair.
  • Page 34 2-20 Chapter 2 System DRAM IT5V IT5H 72- pin SIMM socket 4 SIMM 4 SIMM Support FP DRAM Support EDO DRAM 168-pin DIMM specifications 3.3V Unbuffered 3.3V Unbuffered 168-pin DIMM socket 2 DIMMs 2 DIMMs Support FP DRAM Support EDO DRAM Support synchronous DRAM (SDRAM) DRAM Error Check ECC/Parity...
  • Page 35 Installing the Mainboard 2-21 Table 2-1 72-pin SIMM Module Installation ¡i SIMM1, SIMM2¡j ¡i SIMM3, SIMM4¡j Total memory size pair ¡i or 2 pair¡j pair¡i or 1 pair¡j 1Mx32¡i 4Mx2¡j 2Mx32¡i 8Mx2¡j 16MB module 4Mx32¡i 16Mx2¡j 32MB inserted 8Mx32¡i 32Mx2¡j 64MB 16Mx32¡i 64Mx2¡j 128MB*...
  • Page 36 2-22 Chapter 2 Table 2-2 168-pin DIMM Module Installation ¡i DIMM1¡j ¡i DIMM2¡j Total memory size pair¡i or 2 pair¡j pair¡i or 1 pair¡j 1Mx64¡i 8M¡j 2Mx64¡i 16M¡j module 16MB 4Mx64¡i 32M¡j inserted 32MB 8Mx64¡i 64M¡j 64MB 16Mx64¡i 128M¡j 128MB* 1Mx64¡i 8M¡j 2Mx64¡i 16M¡j module...
  • Page 37 Installing the Mainboard 2-23...

  • Page 39: Chapter 3 Introduction Of Bios

    Introduction of BIOS Chapter 3 Introduction of BIOS The BIOS is a program located on a Read-Only Memory chip on the mainboard. This program will not be lost when you turn the computer off. This program is also referred to as the boot program. It is the only channel for the hardware circuit to communicate with the operating system.
  • Page 40 Chapter 3 Three to five seconds after the message is displayed, if you press the Del key, or if you press simultaneously the Ctrl Alt Esc keys, you will access the BIOS Setup menu. At that moment, the BIOS will display the following message: ROM PCI/ISA BIOS(XXXXXXXX) CMOS SETUP UTILITY...
  • Page 41 Introduction of BIOS Computer CMOS DATA knowledge Maybe you have heard somebody saying that their CMOS DATA was lost. What is the CMOS? Is it important? The CMOS is the memory used to store the BIOS parameters that you have configured. This memory is passive.

  • Page 42: Cpu Setup¡I Cpu Soft Menu™ ¡J

    Chapter 3 ¬ CPU setup¡i CPU SOFT MENU™ ¡j The CPU can be setup through a p rogrammable switch ( CPU SOFT MENU™ ), that replaces traditional manual hardware configuration. This feature allows the user to complete more easily the installation procedures. You can install the CPU without configuring any jumpers or switches.
  • Page 43 Introduction of BIOS But when you boot the computer, the mainboard will automatically detect the CPU brand and type. CPU Operating Speed: This option sets the CPU speed. Different CPU brands use different techniques to indicate the CPU speed. For example, AMD and Cyrix use P-Rating.
  • Page 44 Chapter 3 However, differences will exist because of the various brands and types available.
  • Page 45 Setup again and set up the external clock. When you change your CPU: IT5 series mainboards have been designed in such a way that you can turn the system on after having inserted the CPU in the socket without having to configure any jumpers or DIP switches.
  • Page 46 Chapter 3 Method 1: Setup up the CPU for the lowest speed for its brand. Turn the power supply off and change the CPU. Then turn the system on again, and set up the CPU parameters through CPU SOFT MENU. Method 2: Try turning the system on a few times (3~4 times) and the system will automatically use its standard parameters to boot.
  • Page 47 Introduction of BIOS ¤ When the CPU is single voltage, the following options will be displayed to set up the voltage: / Plane voltage: ä 3.52v ¡G For Intel VRE standard CPUs and AMK-K5 or Cyrix 8x86 CPUs ä 3.38v ¡G For Intel STD and VR standards CPUs ¤...
  • Page 48 3-10 Chapter 3 Notes: 1. If your CPU is a dual voltage one and that the voltage set up is 3.52V, our mainboard features a hardware protection circuit that will lower the voltage between 2.8V and 2.9V, which is within the CPU operating voltage limits.

  • Page 49: Standard Cmos Setup Menu

    Introduction of BIOS 3-11 - Standard CMOS Setup Menu It is the basic configuration parameters of the BIOS. These parameters include the settings of date, hour, VGA card, FDD and HDD. Date(mm:dd:yy) : Wed,Jul 10 1996 Time(hh:mm:ss) : 14:53:31 HARDS DISKS Type SIZE CYLS HEAD...
  • Page 50 3-12 Chapter 3 ä LBA (Logical Block Addressing) mode: LBA mode supports hard disk drives up to 8.4Giga. This mode uses a different method to calculate the position of disk data to be accessed. It translates Cylinders (CYLS), Heads and Sectors into a logical address where data are located. The Cylinders, Heads, and Sectors displayed in this menu do not reflect the actual structure of the hard disk, they are just reference values used to calculate actual positions.

  • Page 51: Bios Features Setup Menu

    Introduction of BIOS 3-13 ® BIOS Features Setup Menu BIOS Features Setup Menu has already been set for maximum operation. If you do not really understand each of the options in this menu, we recommend you use default values. In each item, you can press <F1> at any time to display all the options for this item.

  • Page 52: Cpu Internal Cache

    3-14 Chapter 3 CPU Internal Cache: This item is used to Enable or to Disable the CPU internal cache. When the cache is set at Disable, it is much slower, so the default setting for this item is Enable. Some old and very bad programs will make the computer malfunction or crash if the system speed is to high.
  • Page 53 Introduction of BIOS 3-15 as drive B:, and drive B: can be set as drive A:.

  • Page 54: Boot Up Floppy Seek

    3-16 Chapter 3 Boot Up Floppy Seek: When computer boots up, the BIOS detects if the system has FDD or not. When this item is enabled, if the BIOS detects no floppy drive, it will display a floppy disk drive error message. If this item is disabled, the BIOS will skip this test.

  • Page 55: Security Option

    Introduction of BIOS 3-17 Security Option: This option can be set to System or to Setup. After you have created a password through PASSWORD SETTING, this option will deny access to your system (System) or modification of computer setup (BIOS Setup) by unauthorized users. ä...
  • Page 56 3-18 Chapter 3 Shadowing address ranges (C8000-CBFFF Shadow): This option allows you to decide if the memory block (BIOS) of an interface card at the address C8000-CBFFF uses the shadow feature or not. If you have no interface card using this memory block, don’ t enable this option.
  • Page 57 Introduction of BIOS 3-19 Computer knowledge SHADOW What is the SHADOW? The BIOS of standard video or interface cards is stored in ROM, and it is often very slow. With the Shadow feature, the CPU reads the BIOS on the VGA card and copies it into RAM.

  • Page 58: Chipset Features Setup Menu

    3-20 Chapter 3 ¯ Chipset Features Setup Menu The Chipset Features Setup Menu is used to modify the contents of the buffers in the chipset on the mainboard. Since the parameters of the buffers are closely related to hardware, if the setup is not correct or false, the mainboard will become unstable or you will not be able to boot up.
  • Page 59 Introduction of BIOS 3-21 options.
  • Page 60 3-22 Chapter 3 ä When you select Disable, you can manually set up DRAM options. Attention: Unless you are very familiar with your computer and with the DRAM configuration and speed, we recommend you not change the DRAM options but enable this option. DRAM settings: The other DRAM settings are all closely related to hardware.
  • Page 61 Introduction of BIOS 3-23 describe all the features of this menu.

  • Page 62: Power Management Setup Menu

    3-24 Chapter 3 ° Power Management Setup Menu The difference between Green PCs and traditional computers is that Green PCs have a power management feature. With this feature, when the computer is powered on but inactive, the power consumption is reduced in order to save energy.

  • Page 63: Power Management Setup Menu

    Introduction of BIOS 3-25 F7 : Load Setup Defaults Fig 3-5 Power Management Setup Menu...

  • Page 64: Power Management

    3-26 Chapter 3 2. Use arrow keys to go to the item you want to configure. To change the settings, use "PgUP", "PgDn", "+" and "-". 3. After you have configured the Power Management feature, press “Esc” to go back to the Main Menu. We are now going to briefly explain the options in this menu: Power Management: Four options:...

  • Page 65: Video Off Option

    Introduction of BIOS 3-27 Video Off Option: Select the saving mode in which the video is switched off. ä Always On The video will never be switched off in no saving mode. ä All Modes Off The video will be switched off in all saving modes. ä...

  • Page 66: Standby Mode

    3-28 Chapter 3 Standby Mode: When the setting selected for "Power Management" is "User Define", you can define for this mode any delay from 1 minute to 1 hour. If no power management event occurs during this time period, meaning the computer is inactive during this period, the system will enter the Standby power saving mode.

  • Page 67: Pci & Onboard I/O Setup

    Introduction of BIOS 3-29 ± PCI & Onboard I/O Setup In this menu, you can change the INT# and IRQ of the PCI bus and the onboard I/O device, I/O port address and other hardware settings. ROM PCI/ISA BIOS (XXXXXXXX) PCI &...
  • Page 68 3-30 Chapter 3 PCI PnP BIOS Auto-Config: This option enables or disables the BIOS capability to automatically assign IRQs. The BIOS default is Disable. When you select Enable, the BIOS will automatically assign the correct IRQ to the interrupt number (INT#) of the PCI slots. When this option is disabled, you have to assign IRQs used by the interrupt number (INT#) of the PCI slots.
  • Page 69 Introduction of BIOS 3-31 ä PCI-slotX: Some old PCI IDE cards cannot be detected by the BIOS. If the onboard BIOS cannot detect a PCE IDE card, you have to specify on which PCI slot the IDE card is inserted, to make the BIOS assign IRQ14 for use by the interrupt number (INT#) of this PCI slot.

  • Page 70: On Board Serial Port 1

    3-32 Chapter 3 Onboard PS/2 Mouse: This is to Enable or Disable the PS/2 Mouse. When in Enable, IRQ 12 is used. On Board FDD Controller: This is to Enable or Disable the Onboard FDD Controller. On board Serial Port 1: This is used to specify the I/O address and IRQ of Serial Port 1.

  • Page 71: Parallel Port Mode

    Introduction of BIOS 3-33 / Parallel Port Mode: Can be set as EPP v.1.7, EPP v. 1.9, ECP, ECP+EPP 1.7, ECP+EPP 1.9 or Normal (SPP) mode. Default is Normal (SPP) mode. / ECP Mode Use DMA: When the mode selected for the onboard parallel port is ECP, the DMA channel selected can be Channel 1 or Channel 3.
  • Page 72 3-34 Chapter 3 Computer MODE 0~4 reflects the HDD data transfer rate. The higher knowledge the MODE value is, the better is the HDD data transfer rate. But it does not mean that you can select the highest MODE value just as you like, you first have to be sure that your HDD supports this MODE, otherwise the hard disk will not be able to operate normally.

  • Page 73: ² Load Bios Defaults

    Introduction of BIOS 3-35 ² Load BIOS Defaults BIOS defaults are the reference settings that allow your system to work at a comparatively low performance. When you choose the option, the following message is displayed: “Load BIOS Defaults (Y/N)? N” If you want to use BIOS default values, press “Y”, than <Enter>.

  • Page 74: Password Setting

    3-36 Chapter 3 ´ Password Setting This option allows you to set a password required t o start the system (System) or to access to the BIOS (Setup). After you have set a password through the PASSWORD SETTING option, you can enter the Security Option in the “BIOS Features Setup Menu” to select the security level in order to prevent any unauthorized access.

  • Page 75: Ide Hdd Auto Detection

    Introduction of BIOS 3-37 µ IDE HDD Auto Detection After you have installed the hard disk, in old systems, you had to know the hard disk specifications, such as the number of cylinders, heads and sectors, and to enter the relevant information into the hard disk information section. If the CMOS data were erased, and you had forgotten the hard disk specifications, it was a great problem.

  • Page 77: Appendix A Quick Installation

    Quick Installation Appendix A Quick Installation Appendix A will give you a simplified installation procedure, in order to allow you to install tour mainboard quickly and correctly. If you need further information or if you need to change some other settings, read from Chapters 1.
  • Page 78 Appendix A For other configurations, please refer to the section dealing with system memory installation in Chapter 2. Installing FDD: FDC- Connect one end of the 34-pin cable that comes with the drive to the FDD connector, and the other end of the cable to the FDC pin connector on the mainboard.
  • Page 79 Quick Installation computer case.
  • Page 80 Appendix A Installing Keylock connector: Watch the pin position and the orientation PN1 - There is a specific orientation for pin 1 to Pin 5. Insert the five-threads keylock cable into correct pins of connector PN1 on the mainboard. Pin number Name of the signal or signification +5VDC No connection...
  • Page 81 Quick Installation H/W Reset connector: PN2 - There is no specific orientation for pins 1 and 2. Insert the two-threads hardware reset connector into the correct pins of connector PN2 on the mainboard. Pin number Name of the signal or signification Ground Hardware Reset Signal Installing speaker connector:...
  • Page 82 Appendix A Watch the pin position and Installing Power input connector: the orientation P8/P9- Connect connectors P8 and P9 or the power supply unit to the correct connectors on the mainboard. Pin number Name of the signal or Pin number Name of the signal or signification signification...
  • Page 83 Quick Installation Adjusting other jumpers: Some jumpers are reserved for future functions or are not to be adjusted in normal operation. Adjust them according to the following recommendations. CCMOS ¡G Put jumper on pin 1 and pin 2. ¡G OFF (don’ t need to use any jumper). BIOS Setup: Parameters and CPU settings After you have followed the steps described above and completed the installation, when you power the...

  • Page 85: Appendix B Intel Pentium Cpus

    Intel Pentium CPUs Appendix B Intel Pentium CPUs Pentium 75MHz CPU CPUInternal BusExternal Power CPUDP Speed Spec.Clock F actor Clock V core VIO Timing Supp. Note P54CS Q0649 75MHz 1.5 50MHz STD STDYes P54C Sx753 7 5MHz 1.5 50MHz STD STDYes P54C SX961 75MHz 1.5 50MHz STD STDYes...
  • Page 86 Appendix B Pentium 90MHz CPU CPU Internal Bus E xternal Power CPU DP Speed Spec C lock Factor Clock Vcore VIO Timing Supp. Note P54C Sx653 90MHz 1.560MHz STD Yes P54C Sx957 90MHz 1.560MHz STD Yes P54C Q0654 90MHz 1.560MHz STD Yes P54C Sx958 90MHz...
  • Page 87 Intel Pentium CPUs Pentium 100MHz CPU CPU Internal Bus E xternal Power CPU DP Speed Spec C lock Factor Clock Vcore VIO Timing Supp. Note P54C Sx886 100MHz 1.566MHz MDNo P54C Sx910 100MHz 1.566MHz MDNo P54C 1 00 MHz Sx956 100MHz 1.566MHz STD No...
  • Page 88 Appendix B Pentium120MHz CPU CPUInternal BusExternal Power CPUDP SpeedSpec.Clock F actor Clock Vcore VIO Timing Supp. Note P54CQS Q0708 120MHz 2 60MHz STD S TD Yes P54CQS 120 MHz Q0711 120MHz 2 60MHz VRE M D Yes Convert to P54C P54CQS Q0730 120MHz 2 60MHz STD M D Yes...
  • Page 89 Intel Pentium CPUs Pentium 133MHz CPU CPU Internal Bus E xternal Power CPU DP Speed Spec Clock Factor Clock Vcore VIO Timing Supp. Note P54CS Q0772 133MHz 2 66MHz STD Yes P54CS Q0773 133MHz 2 66MHz KitYes P54CS Q0774 133MHz 2 66MHz MDYes P54CS Q0877...
  • Page 90 Appendix B Pentium 166MHz CPU CPU Internal Bus E xternal Power CPU DP Speed Spec Clock Factor Clock Vcore VIO Timing Supp. Note P54CS SY016 166MHz 2.566MHz VRE Yes P54CS Q0841 166MHz 2.566MHz VRE Yes P54CS SY017 166MHz 2.566MHz VRE Yes P54CS Q0949 166MHz 2.566MHz...
  • Page 91 Intel Pentium CPUs Y Bus Factor Power STD 3.15V~3.465V (Recommended voltage is 3.38V) 3.300V~3.465V (Recommended voltage is 3.38V) VRE 3.450V~3.6V (Recommended voltage is 3.52V) Timing STD Standard Timing Min. Delay (denoting shorter minimum valid delay AC timing for some signal) Supports timing for C55/C88 cache chipsets &...
  • Page 92 Appendix B...
  • Page 93 AMD-K5 CPUs Appendix C AMD-K5 CPUs Recognizing AMD CPU speed, voltage and package: AMD-K5-PR100 A B Q xx Reserved 100MHz Case Temperature Internal Q= 60¢J Clock R= 70¢J 75MHz W=55¢J 90MHz 100MHz X= 65¢J 120MHz Y= 75¢J 133MHz Z= 85¢J Processor name Operating Voltage B= 3.45V-3.60V...
  • Page 94 Appendix C...
  • Page 95 Cyrix 6x86 CPUs Appendix D Cyrix 6x86 CPUs Recognizing Cyrix CPU speed and voltage: Name of the P-Rating processor 90+,120+,133+, 6x86, 6x86L 150+,166+,200+ 6x86-P166+ GP CPU Core Frequency 133 MHz 100,110,120, 133,150 3.52V (028) VCC Specification Full spec.: 3.15V-3.70V Center of Core Voltage C-spec.
  • Page 96 Appendix D...
  • Page 97 General Discussion about HDD Installation Appendix E General Discussion about HDD Installation Most of the present HDDs use IDE interface. Installing an IDE hard disk does not require a huge amount of intelligence like installing the driver for a SCSI hard disk, but this means that the user often must install the hard disk by himself and cope with all the problems he may encounter.
  • Page 98 Appendix E The higher the MODE value is, the best is the hard disk data transfer rate. But this does not mean that you can select the highest mode value as you like. You must be sure that your hard disk supports that type of fast data transfer, otherwise your hard disk will not be able to operate correctly.
  • Page 99 General Discussion about HDD Installation Installing a hard disk: In the Standard CMOS Setup Menu, Primary means the first connector on the mainboard, that is, connector IDE1 on our mainboard. Secondary means the second connector on the mainboard, that is, connector IDE2 on our mainboard.
  • Page 100 Appendix E Installing two HDDs: The red line on the connection cable must be lined up with pin 1 on the connector. Method 1: Set the hard disk drive used for boot up at Master, and the other drive at Slave. Connect one of the connectors of the 40-pin cable to the first drive, another connector to the second drive, and the other end of the cable to connector IDE1 on the mainboard.
  • Page 101 General Discussion about HDD Installation Installing three HDDs: The red line on the connection cable must be lined up with pin 1 on the connector. Method 1: Set the hard disk drive used for boot up at Master, set the second drive at Slave. Connect one connector of the 40-pin cable to the first drive, another connector to the second drive, and the other end of the cable to connector IDE1 on the mainboard.
  • Page 102 Appendix E If one or several of your HDD are old, and if y ou don’ t want to erase the data stored in your drives, you will have to remember the parameters (Type, Cylinders, Heads, Sectors, Mode) of the drive(s) you don’...
  • Page 103 Technical Support Appendix F Technical Support L When you have a problem during operation... In order to help our technical support personnel to quickly find out what is the problem of your mainboard and to give you the answers you need, before filling in the technical support form, eliminate any peripheral that is not related to the problem, and indicate on the form the key peripherals.
  • Page 104 Appendix F Example 2: With a system including the mainboard (with CPU, DRAM, COAST...) HDD, CD-ROM, FDD, VGA CARD, LAN CARD, MPEG CARD, SCSI CARD, SOUND CARD, after assembly and after having installed the Sound Card Driver, when you restart the system, when it runs the Sound Card Driver, it resets automatically.

  • Page 105: Technical Support Form

    Technical Support & Technical Support Form ( Phone #: Company name: J Contact: /Fax #: Model BIOS ID # Mainboard model no. DRIVER REV OS/Application Hardware name Brand Specifications C.P.U IDE1 IDE2 CD-ROM Drive IDE1 IDE2 System Memory (DRAM) COAST ADD-ON CARD Problem Description:...
  • Page 106 Appendix F $$ Main instructions... To fill in this “Technical Support Form”, refer to the step-by-step instructions given below: *1. MODEL: Note the model number given in your user’ s manual. Example: PT5R2, PR5R2... *2. Mainboard model number (REV): Note the mainboard model number labeled on the mainboard as “REV:*.**”.
  • Page 107 Technical Support 4. DRIVER REV: Note the driver version number indicated on the DEVICE DRIVER disk as “Release *.**”. < Example: IDE Device Driver Drivers Diskette Release 1.09A Release 1.09A *5. OS/APPLICATION: Indicate what are the operating system and the applications your are running on the system. Example: MS-DOS 6.22, Windows 3.1.
  • Page 108 Appendix F System Memory (DRAM): Indicate the brand and specifications (SIMM/DIMM) of your system memory. Examples: In the Brand space, write “Panasonic”, in the Specifications space, write “SIMM-FP DRAM 4MB-06”. Or, in the Brand, write “NPNX”, in the Specifications space, write “SIMM-EDO DRAM 8MB-06”.
  • Page 109 To make a backup of the current system BIOS execute the following command: AWDFLASH NEWBIOS SAVEBIOS “NEWBIOS” indicates file name for the new BIOS which can be Notes: downloaded from our website at http://www.abit.com.tw (user can choose a different file name in place of NEWBIOS).
  • Page 110 Startup system files (COMMAND.COM, MSDOS.SYS, IO.SYS...) b. AWDFLSH.EXE c. The NEWBIOS file which can be downloaded from ABIT’ s website. d. AUTOEXEC.BAT, which has the following content: A:\AWDFLASH NEWBIOS ® When a version of BIOS that is for the incorrect mainboard model the following message will appear: “...

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