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P/I-P55T2P4

Pentium Motherboard

USER'S MANUAL

Summary of Contents for P I-P55T2P4

Page 1: ...R P I P55T2P4 Pentium Motherboard USER S MANUAL ...

Page 2: ...s manual or product ASUS may revise this manual from time to time without notice Products mentioned in this manual are mentioned for identification purposes only Product names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies Intel LANDesk and Pentium are registered trademarks of Intel Corporation IBM is a registered trademark of Internati...

Page 3: ...s 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 Email info usa asus com tw Technical Support BBS 1 408 474 0555 Email tsd usa asus com tw ASUS COMPUTER GmbH Marketing Info Address Harkort Str 25 40880 Ratingen BRD Germany Telephone 49 2102 445011 F...

Page 4: ...Installation Procedures 13 Static RAM SRAM for Level 2 External Cache 14 Compatible Cache Modules for this Motherboard 14 3 Central Processing Unit CPU 15 4 Expansion Cards 16 Expansion Card Installation Procedure 16 Assigning IRQs for Expansion Cards 16 Assigning DMA Channels for ISA Cards 17 ASUS MediaBus Card 18 5 External Connectors 19 Power Connection Procedures 25 IV BIOS SOFTWARE 26 Support...

Page 5: ...ucing the ASUS DMI Configuration Utility 49 System Requirements 49 Using the ASUS DMI Configuration Utility 50 Notes 50 VI ASUS PCI SC200 SCSI Card 53 NCR SCSI BIOS and Drivers 53 The ASUS PCI SC200 SCSI Interface Card 54 Setting Up the ASUS PCI SC200 54 Setting the INT Assignment 55 Terminator Settings 55 SCSI ID Numbers 56 VII ASUS I A16C Audio Card 57 ASUS I A16C Audio Features 57 Unpacking and...

Page 6: ...cular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the inter ference by one or more of the following measures Re orient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet ...

Page 7: ...at your package is complete If you discover damaged or missing items please contact your retailer þ The ASUS P I P55T2P4 motherboard þ 2 serial port ribbon cables attached to a mounting bracket þ 1 parallel ribbon cable with mounting bracket þ 1 IDE ribbon cable þ 1 floppy ribbon cable þ Support drivers and utilities as follows Flash Memory Writer utility to update the FLASH BIOS Desktop Managemen...

Page 8: ...56KB or 512KB on board 256KB upgradeable to 512KB or 512KB onboard Pipelined Burst SRAM Upgrades are made through a Synchronous SRAM cache module See page 14 for compatible cache modules Versatile DRAM Memory Support Supports 72 pin SIMMs of 4MB 8MB 16MB 32MB or 64MB to form a memory size between 8MB to 256MB Sup ports both Fast Page Mode FPM and Extended Data Output EDO SIMMs ISA and PCI Expansio...

Page 9: ...rDA and PS 2 Mouse Connector This motherboard supports an optional infrared port module for wireless interface and a PS 2 mouse cable set NCR SCSI BIOS This motherboard has firmware that supports the optional ASUS PCI SC200 SCSI controller cards Parts of the ASUS Motherboard II FEATURES Parts of Board Intel s 430HX PCIset Onboard 256KB 512KB Pipelined Burst L2 Cache CPU ZIF Socket 7 PCI 4 or ASUS ...

Page 10: ...rd L2 Cache CPU ZIF Socket 7 JP7 JP12 JP11 JP5 JP1 MULTI I O Chipset Keyboard PS 2 Mouse Floppy Drives Primary IDE Secondary IDE COM 2 COM 1 Case Connector Boot Block Write Dis En Multi I O En Dis L2 Cache Size 256 512 Freq Ratio CMOS Operation Clear Board Power Input P8 P9 JP17 Voltage STD VRE Infrared Conn Parallel Printer Port IDE LED BUS Freq JP10 JP8 JP9 TAG SRAM Upgrade JP4 Cacheable 64 512M...

Page 11: ... 2 3 p 16 16 bit ISA Bus Expansion Slots 6 PCI Slots 1 2 3 p 16 32 bit PCI Bus Expansion Slots 7 PCI 4 MediaBus p 18 32 bit PCI Bus Slot and MediaBus Connectors 1 Keyboard p 19 Keyboard Connector 5 pin Female 2 PS 2 Mouse p 19 PS 2 Mouse Connector 6 pin Block 3 Parallel Port p 20 Parallel Port Connector 26 pin Block 4 Serial Port p 20 Serial Port COM1 COM2 10 pin Blocks 5 Floppy Drive p 21 Floppy ...

Page 12: ...e pins The jumpers will also be shown graphically such as to connect pins 1 2 and to connect pins 2 3 Jumpers with two pins will be shown as for Short On and for Open Off For manufacturing simplicity the jumpers may be sharing pins from other groups Use the diagrams in this manual instead of following the pin layout on the board Settings with two jumper numbers require that both jumpers be moved t...

Page 13: ...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 1 Multi I O Setting Enable Disable 2 3 JP1 Enable Default Disabled 1 2 3 JP1 2 Flash ROM Boot Block Programming JP2 This sets the operation mode of the boot block area of the BIOS Flash ROM to allow programming in the Enabled position Programming JP2 Disabled 1 2 Default Enabled ...

Page 14: ...res Regardless of your cache combination set the following jumpers according to the total amount of L2 cache that is present onboard and installed as a module Selections JP5 256KB 1 2 512KB 2 3 Total L2 Cache Size Setting 256KB 512KB 1 2 3 JP5 256KB 512KB 1 2 3 JP5 4 Real Time Clock RTC RAM JP7 This clears the user entered information stored in the CMOS RAM of the Real Time Clock such as hard disk...

Page 15: ...r on CPU jumper settings check with your retailer 5 Single Power Plane CPU Voltage Regulator Selection JP17 These jumpers set the voltage supplied to single power plane CPU s CPU Manufacturer CPU Type Voltage JP17 Intel AMD P54C CS K5 STD 3 4 Volts 1 2 Default Intel AMD IBM Cyrix P54C CS K5 6x86 VRE 3 5 Volts 2 3 Voltage Regulator Output Selection STD VRE P54C CS K5 STD 3 4V Default 1 JP17 2 3 P54...

Page 16: ...ernal speed of the Intel AMD IBM or Cyrix CPU as follows BUS Freq Freq Ratio CPU Model Freq Ratio B Freq JP10 JP9 JP8 JP12 JP11 Intel Pentium 233MHz 3 5x 66MHz 2 3 1 2 2 3 1 2 1 2 Intel Pentium 200MHz 3 0x 66MHz 2 3 1 2 2 3 2 3 1 2 Intel Pentium 166MHz 2 5x 66MHz 2 3 1 2 2 3 2 3 2 3 Intel Pentium 150MHz 2 5x 60MHz 1 2 2 3 2 3 2 3 2 3 Intel Pentium 133MHz 2 0x 66MHz 2 3 1 2 2 3 1 2 2 3 Intel Pentiu...

Page 17: ...che module instead of pipelined burst SRAM chips this jumper must be set to 64MB 512MB will make the system unstable Mcache chips can only allow cacheable memory up to 64MB See Map of Motherboard on page 4 for L2 cache locations If the cache module that you install already have an extended tag do not install another TAG SRAM into the TAG SRAM Upgrade Socket Cacheable Size JP4 64MB BSRAM MCache 1 2...

Page 18: ...e memory modules with more than 24 chips per module Modules with more than 24 chips exceed the design specifications of the memory subsystem and will be unstable TAG SRAM Upgrade The purpose of this SRAM is described by Memory Cacheable Size jumper You must use a standard 5Volt SRAM chip that is 15ns or faster Insert one 16K8 or 32K8 SRAM chip as shown by the Top view with the semi circle Indentio...

Page 19: ...nk0 Bank1 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 module into a vertical position so that it clicks into place 72 Pin DRAM in SIMM Socket Support Clip Safety Tab This Side Only Mounting Hole 4 The plastic guides should go through the two Mounting Holes on the si...

Page 20: ...r 512KB IMPORTANT You must set Total Level 2 Cache Size Setting jumper on page 8 when changes are made to your cache size Insert the module as shown Because the number of pins are different on either side of the break the module will only fit in the orientation as shown Compatible Cache Modules for this Motherboard Pipelined Burst Cache Module 42 Pins 38 Pins SIMM Cache Module 256KB to 512KB 0KB t...

Page 21: ... angle Insert the CPU with the correct orientation as shown Use the notched corner of the CPU with the white dot as your guide The white dot should point towards the end the of the lever Notice that there is a blank area where one hole is missing from that corner of the square array of pin holes and a 1 printed on the motherboard next to that corner Because the CPU has a corner pin for three of th...

Page 22: ...acket for pos sible future use 5 Carefully align the card s connectors and press firmly 6 Secure the card on the slot with the screw you removed in step 4 7 Replace the computer system s cover 8 Setup the BIOS if necessary such as IRQ xx Used By ISA Yes in PNPAND PCI SETUP 9 Install the necessary software drivers for your expansion card Assigning IRQs for Expansion Cards Some expansion cards need ...

Page 23: ...IRQs are as signed automatically from those available If the system has both Legacy and PNP ISA cards installed IRQs are assigned to PNP cards from those not used by Legacy cards The PCI and PNP configuration of the BIOS setup utility can be used to indicate which IRQs are being used by Legacy cards For older Legacy cards that does not work with the BIOS you can contact your vendor for an ISA Conf...

Page 24: ...I Slot 4 can meet standard specifications The gap between the MediaBus extension and the PCI Slot 4 has been increased from 0 32 to 0 40 in order to prevent Rev 1 2 MediaBus cards from being installed into the new motherboards and vice versa The following are MediaBus cards designed for MediaBus 2 0 that can be used on this motherboard PCI AS2940UW Ultra Fast Wide SCSI Audio MediaBus Card PCI AV26...

Page 25: ... as a 101 enhanced keyboard Connector Plug from Keyboard Keyboard Connector 5 pin female 2 PS 2 Mouse Connector 6 pin block If you are using a PS 2 mouse you must purchase an optional PS 2 mouse set which connects to the 6 pin block and mounts to an open slot on your computer s case The system will direct IRQ12 to the PS 2 mouse if one is detected If not detected expansion cards can use IRQ12 See ...

Page 26: ...26 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 26 plugged Onboard Parallel Printer Connector Pin 1 4 Serial Port COM1 and COM2 Connectors Two 10 pin blocks These connectors support the provided serial port ribbon cables with mounting bracket Connect the ribbon cables to these connectors and mount the bracket to the case on an open slot The two serial ...

Page 27: ...in block This connector connects to a standard 5 Volt power supply To connect the leads from the power supply ensure first that the power supply is not plugged Most power supplies provide two plugs P8 and P9 each containing six wires two of which are black Orient the connectors so that the black wires are located in the middle Using a slight angle align the plastic guide pins on the lead to their ...

Page 28: ...n of your hard disk for the jumper settings You may also configure two hard disks to be both Masters using one ribbon cable on the primary IDE connector and another ribbon cable on the secondary IDE con nector BIOS now supports SCSI device or IDE CD ROM bootup see HDD SequenceSCSI IDEFirst BootSequence intheBIOSFEATURESSETUP of the BIOS software Pin 20 is removed to prevent inserting in the wrong ...

Page 29: ... one or two pushes depending on the position of the switch Wake up can be controlled by settings in the BIOS but the keyboard will always allow wake up the SMI lead cannot wake up the system If you want to use this connector Suspend Switch in the POWER MANAGEMENT SETUP of the BIOS soft ware should be on the default setting of Enable 11 Reset Switch Lead CON1 This 2 pin connector connects to the ca...

Page 30: ...ss the CPU and onboard heatsinks Damage may occur to the mother board and or the CPU fan if these pins are incorrectly used These are not jumpers do not place jumper caps over these pins Air Flow Air Flow CPU Fan Power FAN 12V GND 15 IrDA Compliant Infrared Module Connector IR This connector supports the optional wireless transmitting and receiving infrared module This module mounts to a small ope...

Page 31: ... monitor b External SCSI devices starting with the last device on the chain c Your system power 6 The power LED on the front panel of the system case will light and the monitor LED as well The system will then run power on tests While the tests are running additional messages will appear on the screen If you do not see any thing within 30 seconds from the time you turn on the power the system may ...

Page 32: ...ing bootup Larger num bers represent a newer BIOS file NOTE A binary BIOS file is no longer included with the support software Save the motherboard s BIOS file to a floppy diskette as soon as your system is operational See Flash Memory Writer Utility in this section to Save Current BIOS to File Flash Memory Writer Utility IMPORTANT Flash Type may also be INTEL 28F001BXT If unknown is shown after F...

Page 33: ... Parameter Block This option erases the Plug and Play PnP configuration record 2 Update BIOS Including Boot Block and ESCD This option updates the Boot Block the motherboard BIOS and the PnP ESCD Parameter Block from a new BIOS file NOTE Update BIOS Main Block from File and Update BIOS Including Boot Block and ESCD requires that the system is running in real mode This utility will not operate if t...

Page 34: ...nter key The utility then uploads the BIOS file from disk The following message will appear DO NOT TURN OFF THE SYSTEM IF THERE IS A PROBLEM If you encounter problems while downloading the new BIOS DO NOT turn off your system since this might prevent your system from booting up Just repeat the process and if the problem still persists upload the original BIOS file you saved to disk in step 1 of th...

Page 35: ...you are installing the motherboard reconfiguring your system or you receive a Run Setup message you will need to enter new setup information This section describes how to configure your system using this utility The BIOS ROM of the system stores the Setup utility When you turn on the com puter the system provides you with the opportunity to run this program This ap pears during the Power On Self T...

Page 36: ...clock and error handling If the motherboard is already installed in a working system you will not need to select this option anymore However if the configuration stored in the CMOS memory on the board gets lost or damaged or if you change your system hardware configuration you will need to respecify the configuration values The configuration values usually get lost or corrupted when the power of t...

Page 37: ...date and time prompts by creating an AUTOEXEC BAT file For information on how to create this file please refer to the MS DOS manual Hard Disk Drives This field records the specifications for all non SCSI hard disk drives installed in your system The onboard PCI IDE connectors provide Primary and Secondary channels for connecting up to four IDE hard disks or other IDE devices Each chan nel can supp...

Page 38: ...er than 528MB set it to LBA for drives over 528MB that support Logical Block Addressing LBA to allow larger IDE hard disks set it to Large for drives over 528MB that do not sup port LBA Large type of drive can only be used with MS DOS and is very uncom mon Most IDE drives over 528MB support the LBA mode Auto detection of hard disks on bootup For each field Primary Master Primary Slave Secondary Ma...

Page 39: ...eft or right arrow key Floppy 3 Mode Support This is the Japanese standard floppy drive The standard stores 1 2MB in a 3 5 diskette This is normally disabled but you may choose from either Drive A Drive B Both Disabled Default Video Set this field to the type of video display card installed in your system The options are EGA VGA Default Mono for Hercules or MDA CGA 40 CGA 80 If you are using a VGA...

Page 40: ...S default values and Setup default values respectively Details of BIOS Features Setup Virus Warning This field protects the boot sector and partition table of your hard disk against acci dental modifications Any attempt to write to them will cause the system to halt and display a warning message If this occurs you can either allow the operation to continue or use a bootable virus free floppy disk ...

Page 41: ...ion of files from the computer system to be copied to floppy drives by allowing the setting of Read Only to only allow reads from the floppy but not writes The setup default R W allows both reads and writes IDE HDD Block Mode Sectors This field enhances hard disk performance by making multi sector transfers instead of one sector per transfer Most IDE drives except older versions can utilize this f...

Page 42: ...ou install other expansion cards with ROMs on them you will need to know which addresses the ROMs use to shadow them specifically Shadowing a ROM reduces the memory available between 640KB and 1024KB by the amount used for this purpose Leave on default setting of Disabled Boot Up NumLock Status This field enables users to activate the Number Lock function upon system boot The setup default setting...

Page 43: ... Enabled PCI Streaming Leave on default setting of Enabled Passive Release Leave on default setting of Enabled Chipset Global Features Leave on default setting of Enabled 16 bit I O Recovery Time Timing for 16 bit ISA cards Leave on default setting of 1 BUSCLK 8 bit I O Recovery Time Timing for 8 bit ISA cards Leave on default setting of 1 BUSCLK Video BIOS Cacheable Allows the Video BIOS to be ca...

Page 44: ... the memory See pages 12 13 for more information on DRAM memory modules Onboard FDC Controller When enabled this field allows you to connect your floppy disk drives to the on board floppy drive connector instead of a separate controller card If you want to use a different controller card to connect the floppy drives set this field to Dis abled Default setting is Enabled Onboard FDC Swap A B This f...

Page 45: ...vailable only if you select ECP or ECP EPP in the Parallel Port Mode Select either DMA Channel 1 3 default or Disabled UART2 Use Infrared When enabled this field activates the onboard infrared feature and sets the second serial UART to support the infrared module connector on the motherboard If your system already has a second serial port connected to the onboard COM2 connector it will no longer w...

Page 46: ...the BIOS Power Management For DOS environments you need to add DEVICE C DOS POWER EXE in you CONFIG SYS ForWindows 3 1x and Windows 95 you need to install Windows including the APM feature A batteryandpowercordiconlabeled Power willappearinthe ControlPanel Choose Advanced in the Power Management Field Video Off Option Susp Stby Off This field determines when to activate the video off feature for m...

Page 47: ...fter a pe riod of inactivity This time period is user configurable to Disable or from 1 Min to 15 Min This feature does not affect SCSI hard drives The Doze Mode Standby Mode and Suspend Mode fields set the period of time after which each of these modes activate 30 sec 1 Min 2 Min 4 Min 8 Min 20 Min 30 Min 40 Min 1 Hour PM Events This section sets the wake up call of the system If activity is dete...

Page 48: ... IRQ use The other options are manual settings of NA 5 7 9 10 11 12 14 or 15 for each slot PCI Latency Timer The default setting of 32 PCI Clock enables maximum PCI performance for this motherboard IRQ xx Used By ISA These fields indicate whether or not the displayed IRQ for each field is being used by a legacy non PnP ISA card Two options are available No ICU and Yes The first option the default ...

Page 49: ...ry segment within the C800H and DFFFH address range If you have such a card and you are not using an ICU to specify its address range select a base address from the six available options the ISA MEM Block SIZE field will then appear for selecting the block size If you have more than one legacy ISA card in your system that requires to use this address range you can increase the block size to either...

Page 50: ...e Enter key to confirm Press the N key and then the Enter key to abort This feature does not affect the fields on the Standard CMOS Setup screen Load Setup Defaults This Load Setup Defaults option allows you to load the default values to the sys tem configuration fields These default values are the optimized configuration set tings for the system To load these default values highlight Load Setup D...

Page 51: ...e that the password is case sensitive and can be up to 8 alphanumeric characters long type in your password and then press Enter The system confirms your password by asking you to type it again After setting a password the screen automatically re verts to the main screen To implement the password protection specify in the Security Option field of the BIOS Features Setup screen when the system will...

Page 52: ...ur devices you can only install two IDE hard disk drives Your IDE controller must support the Enhanced IDE features in order to use Drive E and Drive F The onboard PCI IDE controller supports Enhanced IDE with two connectors for connecting up to four IDE devices If you want to use another con troller that supports four drives you must disable the onboard IDE controller in the Chipset Features Setu...

Page 53: ... drive do not accept them Press N to reject the presented settings and enter the correct ones manually from the Standard CMOS Setup screen Save Exit Setup Select this option to save into the CMOS memory all modifications you specified during the current session To save the configuration changes highlight the Save Exit Setup option on the main screen and then press Enter Exit Without Saving Select ...

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Page 55: ...lows the system integrator or end user to add additional information into the MIFD such as serial numbers housing configurations and ven dor information Those information not detected by the motherboard BIOS and has to be manually entered through the DMI Configuration Utility and updated into the MIFD This DMI Configuration Utility provides the same reliability as PnP updat ing and will prevent th...

Page 56: ...t available for editing The blue text Press ENTER for detail contains a second pop up menu is available use the plus minus keys to change the settings Enter to exit and save ESC to exit and not save If the user has made changes ESC will prompt you to answer Y or N Enter Y to go back to the left hand screen and save enter N to go back to left hand screen and not save If editing has not been made ES...

Page 57: ... press ESC and a message Bad File Name appears here to show it was not saved Load MIFD You can load the disk file to memory by entering a drive and path and file name here Load BIOS Defaults You can load the BIOS defaults from a MIFD file and can clear all user modified and added data You must reboot your computer in order for the defaults to be saved back into the Flash BIOS V DMI Using DMI Utili...

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Page 59: ...tWare and IBM OS 2 These drivers pro vide higher performance than the direct BIOS support To use these drivers you must install them into your system and add them to your system configuration files Driver support for SCSI devices used with SCO UNIX is also provided These drivers are included in the second SCO UNIX floppy disk Windows 95 support is also available using the device drivers included w...

Page 60: ...not need to change the setting to use the ASUS PCI SC200 with this motherboard JP 1 JP 2 INT A Def 1 2 3 Interrupt Settings A B C or D JP 1 JP 2 INT B 1 2 3 JP 1 JP 2 INT C 1 2 3 JP 1 JP 2 INT D 1 2 3 Terminator Requirements for SCSI Devices SCSI devices are connected together in a chain by cables Internal devices con nect to theASUS PCI SC200 orASUS PCI SC860 with a fifty pin flat ribbon cable Ex...

Page 61: ...disable all your controllers or cannot enter the configuration utility pressing Ctrl A after memory count during reboot allows you to recover and reconfigure Terminator Settings for the ASUS PCI SC200 The ASUS PCI SC200 on the other hand has active termination that you must set using jumper JP5 There are two settings terminated and not terminated as shown below Decide whether or not you need to te...

Page 62: ...SI device on the bus It determines which device controls the bus when two or more devices try to use it at the same time SCSI IDs on one channel do not interfere with the IDs on another channel This ap plies to two SCSI host adapters that implement different buses as well as dual channels on a single host adapter You can connect up to seven SCSI devices to the interface card You must set a SCSI ID...

Page 63: ...6C is easily damaged by static electric ity Observe the following precautions while unpacking and handling the board Before handling the board discharge static electricity form your body by touch ing an unpainted area of the system s metal chassis While installing the board ground yourself frequently to discharge any static electricity that may accu mulate in your body After removing the board for...

Page 64: ...onnected to the Audio In on the card you can only use the direct output located in the front panel of the CD ROM and adjust volume level by the knob CD Audio Connector Pin Definitions Sony Audio In Mitsumi Audio In Panasonic Audio In Pin Definition Pin Definition Pin Definition l Right Signal 1 Ground 1 Left Signal 2 Ground 2 Left Signal 2 Ground 3 Ground 3 Ground 3 Right Signal 4 Left Signal 4 Ri...

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