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2

Hardware Installation

2.6.9 Power Connectors

We recommend that you use a power supply that complies with the
ATX12V Power Supply Design Guide Version 1.1. An ATX12V
power supply has a standard 20-pin ATX main power connector
that must be inserted onto the CN7 connector.

The system board requires a minimum of 250 Watt power sup-
ply to operate. Your system configuration (amount of memory,
add-in cards, peripherals, etc.) may exceed the minimum power
requirement. To ensure that adequate power is provided, use a
300 Watt (or greater) power supply.

X

+12V

11

1

10

3.3V

3.3V

Ground

+5V

Ground

+5V

Ground

PW-OK

5VSB

+5V

3.3V

-12V

Ground

PS-ON

Ground

Ground

Ground

-5V

+5V

20

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Содержание 748-A

Страница 1: ...748 AL 748 A Rev A System Board User s Manual 73600326...

Страница 2: ...evise this publication and make changes to its contents at any time without obligation to notify any person or entity of such revisions or changes 2003 All Rights Reserved Trademarks Windows 98 Window...

Страница 3: ...ot installed and used in accordance with the instruction manual may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular in...

Страница 4: ...the most updated version The multilingual manual is included in the system board package To view the user s manual insert the CD into a CD ROM drive The autorun screen Mainboard Utility CD will appear...

Страница 5: ...tem Memory 2 3 CPU 2 4 Jumper Settings 2 5 Rear Panel I O Ports 2 6 I O Connectors Chapter 3 BIOS Setup 3 1 Award BIOS Setup Utility 3 2 Updating the BIOS Chapter 4 Supported Softwares 4 1 Desktop Man...

Страница 6: ...pendix A Using the Suspend to RAM Function A 1 Using the Suspend to RAM Function Appendix B System Error Messages B 1 POST Beep B 2 Error Messages Appendix C Troubleshooting C 1 Troubleshooting Checkl...

Страница 7: ...V to 1 850V AMD AthlonTM XP 266 333 400MHz FSB AMD AthlonTM 200 266MHz FSB System Memory Three 184 pin DDR DIMM sockets Supports up to 3GB memory unbuffered DIMM Supports PC1600 DDR200 PC2100 DDR266 P...

Страница 8: ...rted with full duplex independent sample rate converter for audio recording and playback S PDIF in out interface 6 channel audio output S PDIF S PDIF is a standard audio file transfer format that tran...

Страница 9: ...anced IDE data transfer rate up to 133MB sec Bus mastering reduces CPU utilization during disk transfer Supports ATAPI CD ROM LS 120 and ZIP IrDA Interface The system board is equipped with an IrDA co...

Страница 10: ...board s Plug and Play BIOS DMI along with the appropriately networked software is designed to make inventory maintenance and troubleshooting of computer systems easier Rear Panel I O Ports PC 99 color...

Страница 11: ...s the capability of monitoring the CPU s temperature during system boot up To prevent CPU overheat and damage the system will automatically shutdown once it has detected that the CPU s temperature exc...

Страница 12: ...odem add in card the 5VSB power source of your power supply must support a minimum of 720mA Wake On LAN This feature allows the network to remotely wake up a Soft Power Down Soft Off PC It is supporte...

Страница 13: ...saving features that enables PCs to implement Power Management and Plug and Play with operating systems that support OS Direct Power Management Currently only Windows 98 2000 ME XP supports the ACPI...

Страница 14: ...oday destroy data stored in hard drives The system board is designed to protect the boot sector and partition table of your hard disk drive 1 2 Package Checklist The system board package contains the...

Страница 15: ...15 2 Hardware Installation 2 1 System Board Layout Chapter 2 Hardware Installation 748 AL Supports onboard LAN...

Страница 16: ...16 2 Hardware Installation Note The illustrations on the following pages are based on the system board that supports onboard LAN 748 A...

Страница 17: ...rt of the system chassis If a wrist strap is unavailable establish and maintain contact with the system chassis throughout any procedures requiring ESD protection The system board supports DDR SDRAM D...

Страница 18: ...must correspond with Pin 1 of the socket 1 Pull the tabs which are at the ends of the socket to the side 2 Position the DIMM above the socket with the notch in the module aligned with the key on the...

Страница 19: ...talling the CPU 1 Make sure the PC and all other peripheral devices connected to it has been powered down 2 Disconnect all power cords and cables 3 Locate Socket A on the system board 4 Unlock the soc...

Страница 20: ...t Important Handle the CPU by its edges and avoid touching the pins 6 Insert the CPU into the socket until it is seated in place The CPU will fit in only one orientation and can easily be inserted wit...

Страница 21: ...CPU fan with heat sink Without sufficient air circulation across the CPU and heat sink the CPU will overheat damaging both the CPU and system board 1 Before you install the fan heat sink you must appl...

Страница 22: ...U fan s cable connector to the CPU fan con nector on the system board 2 After placing the fan heat sink on top of the CPU latch the retaining clip on one side of the fan heat sink onto the pro truding...

Страница 23: ...system with the default values stored in the ROM BIOS To load the default values stored in the ROM BIOS please follow the steps below 1 Power off the system and unplug the power cord 2 Set JP21 pins...

Страница 24: ...bmenu and press Enter 6 Set the CPU Frequency or CPU Ratio field to its default setting or an appropriate bus clock or frequency ratio Refer to the Frequency Voltage Control section in chapter 3 for m...

Страница 25: ...to its default settings To ensure proper boot up and operation of your system you must power off the system then turn off the power supply s switch or unplug the AC power cord prior to altering the se...

Страница 26: ...tion 2 5 Rear Panel I O Ports 748 AL PS 2 Mouse PS 2 K B RJ45 LAN USB 1 2 COM 1 Parallel GAME MIDI Line out Line in Mic in COM 2 PS 2 Mouse PS 2 K B USB 2 USB 1 COM 1 COM 2 GAME MIDI Line out Line in...

Страница 27: ...Warning Make sure to turn off your computer prior to connecting or disconnecting a mouse or keyboard Failure to do so may damage the system board Wake On Keyboard Mouse The Wake On Keyboard Mouse fun...

Страница 28: ...ns of a network hub BIOS Setting Enable or disable the onboard LAN in the Integrated Peripherals submenu SIS OnChip PCI Device section of the BIOS Refer to chapter 3 for more information To wake up th...

Страница 29: ...USB ports which are mounted on card edge brackets will be provided as options If you wish to use the optional USB ports install the card edge bracket to the system chassis then insert the connector th...

Страница 30: ...allows you to use a USB keyboard or USB mouse to wake up a system from the S3 STR Suspend To RAM state To use this function BIOS Setting USB Port Wake Up Control PM Wake Up Events sec tion in the Powe...

Страница 31: ...se color These ports are RS 232C asynchronous communication ports with 16C550A compatible UARTs that can be used with modems serial printers remote display terminals and other serial devices BIOS Sett...

Страница 32: ...apabilities Port EPP Enhanced Parallel Port Function Allows normal speed operation but in one direction only Allows parallel port to operate in bidirectional mode and at a speed faster than the SPP s...

Страница 33: ...port is identical to that of a standard PC game adapter or game I O port Connect an analog joystick to the 15 pin D sub connector Gold at location CN6 of the system board This port works well with an...

Страница 34: ...out Jack Lime This jack is used to connect external speakers for audio output from the system board Using this jack disables the front audio s line out function 4CH audio W SL Ground SR Ground Ground...

Страница 35: ...hat are at the front panel of your sys tem Using this connector will disable the rear audio s line out and mic in functions Remove the jumper caps from pins 5 6 and pins 9 10 of J15 prior to connectin...

Страница 36: ...all the card edge bracket to the system chassis Driver Installation Install the Realtek Audio Drivers An audio software application program will at the same time be installed into your system This pro...

Страница 37: ...1 Internal Audio Connectors The CD in J14 and AUX in J13 connectors are used to re ceive audio from a CD ROM drive TV tuner or MPEG card 2 6 I O Connectors W 1 4 Right audio channel Left audio channel...

Страница 38: ...nnector One card edge bracket mounted with S PDIF ports will be provided as an option Install the card edge bracket to the system chassis then connect the audio cable connector to J17 Make sure pin 1...

Страница 39: ...of the header Connecting the Floppy Disk Drive Cable Install one end of the floppy disk drive cable into the shrouded floppy disk header J8 on the system board and the other end most connector to the...

Страница 40: ...to connect the drives to the system board An IDE ribbon cable have 3 connectors on them one that plugs into an IDE connector on the system board and the other 2 connects to IDE devices The connector a...

Страница 41: ...s We recommend that you use hard drives from the same manufacturer In a few cases drives from two different manufacturers will not function prop erly when used together The problem lies in the hard dr...

Страница 42: ...e cable to the IrDA connector according to their pin functions BIOS Setting Set UART Mode Select Onboard Super IO Device section in the Integrated Peripherals submenu of the BIOS to the type of IrDA s...

Страница 43: ...k Connect the CPU fan to the 3 pin fan connector at location J9 of the system board The system is capable of monitoring the speed of the CPU fan BIOS Setting The PC Health Status submenu of the BIOS w...

Страница 44: ...J12 are used to connect cooling fans The cooling fans will pro vide adequate airflow throughout the chassis to prevent over heating the CPU and system board components The system is capable of monito...

Страница 45: ...l detect Magic Packet and assert a wakeup signal to power up the system Refer to the add in card s manual for details Note Your LAN card must support the remote wake up function Important The 5VSB pow...

Страница 46: ...that must be inserted onto the CN7 connector The system board requires a minimum of 250 Watt power sup ply to operate Your system configuration amount of memory add in cards peripherals etc may exceed...

Страница 47: ...hus prolonging the life of the power supply or system SPEAKER Speaker Connector This connects to the speaker installed in the system chassis ATX SW ATX Power Switch Depending on the setting in the BIO...

Страница 48: ...it may indicate that the CPU or memory module was not installed properly Please make sure they are properly inserted into their corresponding socket Pin 3 5 14 16 8 10 18 20 7 9 13 15 17 19 2 4 6 HD...

Страница 49: ...pter explains the Setup Utility for the Award BIOS After you power up the system the BIOS message appears on the screen and the memory count begins After the memory test the following message will app...

Страница 50: ...r Date displays the date from 1 to 31 Year displays the year from 1990 to 2098 3 1 1 2 Time The time format is hour minute second The time is based on the 24 hour military time clock For example 1 p m...

Страница 51: ...e BIOS will auto detect the HDD CD ROM drive at the POST stage and show the IDE for the HDD CD ROM drive If a hard disk has not been installed select None Access Mode For hard drives larger than 528MB...

Страница 52: ...anding Zone This field displays the number of cylinders specified as the landing zone for the read write heads Sector This field displays the number sectors per track 3 1 1 4 Drive A and Drive B These...

Страница 53: ...ed during power up The default setting is All Errors No Errors The system boot will not stop for any errors de tected All Errors The system boot will stop whenever the BIOS de tects a non fatal error...

Страница 54: ...54 3 BIOS Setup 3 1 1 8 Extended Memory Displays the amount of extended memory detected during boot up 3 1 1 9 Total Memory Displays the total memory available in the system...

Страница 55: ...to the boot sector or partition table of the hard disk drive the BIOS will halt the system and an error message will appear After seeing the error message if necessary you will be able to run an anti...

Страница 56: ...first second and third in the First Boot Device Second Boot Device and Third Boot Device fields respectively The BIOS will boot the operating system according to the sequence of the drive selected Se...

Страница 57: ...e key is down Enabled The BIOS will not only report that the key is down but will first wait for a moment and if the key is still down it will begin to report that the key has been depressed repeatedl...

Страница 58: ...ield in its default setting 3 1 2 13 MPS Version Control for OS This field is used to select the MPS version that the system board is using 3 1 2 14 OS Select for DRAM 64MB This field allows you to ac...

Страница 59: ...the video speed Note that some graphics boards require that this option be disabled The default value is Enabled Enabled Video shadow is enabled Disabled Video shadow is disabled 3 1 2 17 Small Logo E...

Страница 60: ...sources These items should not be altered unless necessary The default settings have been chosen because they provide the best operating conditions for your system The only time you might consider mak...

Страница 61: ...the memory space below 16MB When enabled the CPU assumes the 15 16MB memory range is allocated to the hidden ISA address range instead of the actual system DRAM When disabled the CPU assumes the 15 16...

Страница 62: ...This field is used to select the clock cycle of the SDRAM CAS latency time The option selected specifies the time before SDRAM starts a read command after receiving it CPU DRAM Bypass Ctrl The option...

Страница 63: ...e cached provided that the cache controller is enabled The larger the range of the Cache RAM the higher the efficiency of the system 3 1 3 6 Video RAM Cacheable When enabled it allows the video RAM to...

Страница 64: ...re for reference only Your version may not be identical to this one 3 1 4 1 SIS OnChip IDE Device Move the cursor to this field and press Enter The following screen will appear The settings on the scr...

Страница 65: ...lave UltraDMA fields IDE Primary Master Slave PIO and IDE Secondary Master Slave PIO PIO means Programmed Input Output Rather than have the BIOS issue a series of commands to effect a transfer to or f...

Страница 66: ...ing your hard drive or CD ROM Auto The BIOS will automatically detect the settings for you Disabled The BIOS will not detect these categories IDE DMA Transfer Access The options are Enabled and Disabl...

Страница 67: ...u can further configure the USB in the following 4 fields Disabled Disables the onboard USB USB Ports Number This field is used to select the number of USB ports you want enabled USB 2 0 Support If yo...

Страница 68: ...his option when using a PCI sound card SIS 10 100M Ethernet 748 AL only This field is used to enable or disable the onboard LAN SIS MAC Address Input Move the cursor to this field and press Enter then...

Страница 69: ...bled Enables the onboard floppy disk controller Disabled Disables the onboard floppy disk controller Onboard Serial Port 1 and Onboard Serial Port 2 Auto The system will automatically select an I O ad...

Страница 70: ...etter transmission of data your IrDA peripheral device must be within a 30o angle and within a distance of 1 me ter 3 Set the UR2 Duplex Mode field appropriately UR2 Duplex Mode Half Data is completel...

Страница 71: ...abled The IDE HDD uses the block mode The system BIOS will check the hard disk drive for the maximum block size the system can transfer The block size will depend on the type of hard disk drive Disabl...

Страница 72: ...0 Access Interface This field is used to select the access interface of the USB 2 0 device 3 1 4 9 MAC Access Interface and Audio Access Interface These fields are used to select the access interface...

Страница 73: ...t to use the Suspend to RAM function make sure this field is enabled then select S3 STR in the ACPI Suspend Type field 3 1 5 2 ACPI Suspend Type This field is used to select the type of Suspend mode S...

Страница 74: ...d mode ac cording to the power saving time selected the CPU and onboard peripherals will be shut off 3 1 5 5 Video Off Option Always On The system BIOS will never turn off the screen Suspend Off The s...

Страница 75: ...nly when the Power Management field is set to User Define When the system enters the HDD Power Down mode according to the power saving time selected the hard disk drive will be powered down while all...

Страница 76: ...Pre State When power returns after an AC power fail ure the system will return to the state where you left off before power failure occurs If the system s power is off when AC power failure occurs it...

Страница 77: ...ugh an IRQ or DMA inter rupt Your LAN card must support the remote wake up func tion Refer to Wake On LAN Connector in chapter 2 for more information MACPME Power Up Control This field is used to enab...

Страница 78: ...and clear the CMOS data Follow the steps in the Jumper Settings for Clearing CMOS Data section in chapter 2 PS2MS Wakeup from S3 S4 S5 This field allows you to use the PS 2 mouse to wake up the system...

Страница 79: ...his is used to set the time you would like the system to power on If you want the system to power on everyday as set in the Day of Month Alarm field the time set in this field must be later than the t...

Страница 80: ...ion Data ESCD once automatically It will then rec reate a new set of configuration data Disabled The BIOS will not reset the configuration data 3 1 6 2 Resources Controlled By The Award Plug and Play...

Страница 81: ...evice 3 1 6 4 PCI VGA Palette Snoop This field determines whether the MPEG ISA VESA VGA cards can work with PCI VGA or not The default value is Disabled Enabled MPEG ISA VESA VGA cards work with PCI V...

Страница 82: ...ed and Current Chassis Fan Speed These fields show the current temperature of the CPU internal temperature of the system and the current fan speed of the CPU and chassis fans in RPM Revolutions Per Mi...

Страница 83: ...e this field in its default setting Do not alter this setting un less advised by an engineer or technician 3 1 8 3 CPU Frequency This field provides several options for selecting the external sys tem...

Страница 84: ...d allows you to manually select higher voltage supplied to the AGP If you want to use the default voltage leave this field in its default setting Important Although this function is supported we do no...

Страница 85: ...ult The CPU s Vcore will be generated according to the CPU VID configuration Important Although this function is supported we do not recommend that you use a higher voltage because unstable current ma...

Страница 86: ...alues permanently stored in the ROM chips These set tings are not optimal and turn off all high performance features You should use these values only if you have hardware problems Highlight this optio...

Страница 87: ...The Load Optimized Defaults option loads optimized settings from the BIOS ROM Use the default values as standard values for your system Highlight this option in the main menu and press Enter Type Y an...

Страница 88: ...a password when you cold boot the system Use the arrow keys to highlight Set Password and press En ter Type in the password You are limited to eight characters When done the message below will appear...

Страница 89: ...Enter Type Y and press Enter The modifications you have made will be written into the CMOS memory and the system will reboot You will once again see the initial diagnostics on the screen If you wish...

Страница 90: ...u have made highlight Exit Without Saving and press Enter Type Y and press Enter The system will reboot and you will once again see the initial diagnostics on the screen If you wish to make any change...

Страница 91: ...loppy disk 2 Reboot the system and enter the Award BIOS Setup Utility to set the first boot drive to Floppy 3 Save the setting and reboot the system 4 After the system booted from the floppy disk exec...

Страница 92: ...S in your sys tem We recommend that you save the current BIOS and its flash utility just in case you need to reinstall the BIOS To save the current BIOS press Y then enter the file name of the current...

Страница 93: ...umbers of hardware installed etc are automatically detected and stored in the DMI pool which is a part of the system board s Plug and Play BIOS Additional information such as ISA based peripherals whi...

Страница 94: ...r arrow keys then press Enter 3 The cursor will move to the screen you select allowing you to edit information The screen will also display the auto detected information 4 Press F10 to update the edit...

Страница 95: ...or arrow keys to select the Load DMI File menu 2 The following message will appear Press Enter to select DMI file for load Press Enter 3 The DMI files will appear on the screen Select the file you wo...

Страница 96: ...to enhance the perform ance of the system board Insert the CD into a CD ROM drive The autorun screen Mainboard Utility CD will appear If after inserting the CD Autorun did not automatically start whi...

Страница 97: ...nd SiS Miniport driver To install the AGP driver please follow the steps below 1 On the left side of the autorun screen click the CHIPSET icon 2 Click SiS AGP Drivers on the main screen The screen bel...

Страница 98: ...wing operating sys tems Windows 98 Windows 98 SE Windows ME Windows NT 4 0 Windows 2000 and Windows XP To install the driver please follow the steps below 1 On the left side of the autorun screen clic...

Страница 99: ...creen to complete installation 5 Reboot the system for the driver to take effect Note The 3D Audio Configuration software which is an audio panel for setting basic audio configurations will at the sam...

Страница 100: ...pear 3 Click Yes to continue 4 Follow the prompts on the screen to complete installation 5 Restart the system Note A Yellow mark will appear in Windows 9x and Windows ME s Device Manager because these...

Страница 101: ...he LAN driver please follow the steps below 1 On the left side of the autorun screen click the NETWORK icon 2 Click LAN Drivers on the main screen The screen below will appear 3 Follow the prompts on...

Страница 102: ...the IDE driver please follow the steps below 1 On the left side of the autorun screen click the TOOLS icon 2 Click SiS IDE Drivers on the main screen The screen below will appear 3 Follow the prompts...

Страница 103: ...n 2 Click Microsoft DirectX 8 1 on the main menu The follow ing screen will appear 3 Click Yes to continue 4 Follow the prompts on the screen to complete installation 5 Reboot the system for the drive...

Страница 104: ...age will pop up The utility can also be configured so that a beeping alarm will sound whenever an error occurs We recommend that you use the Default Setting which is the ideal setting that would keep...

Страница 105: ...hannel and 6 channel audio modes as well as configure the audio effects After installing the audio driver and rebooting the system you can run 3D Audio Configuration either from the taskbar or from th...

Страница 106: ...ere you will configure analog output settings to speakers S PDIF This panel is used to configure S PDIF output which provides a low dis tortion digital data transfer between audio devices Volume Contr...

Страница 107: ...ally start which is the Main Board Utility CD screen did not appear please go directly to the root directory of the CD and double click Setup 2 All steps or procedures to install software drivers are...

Страница 108: ...Appendix A Using the Suspend to RAM Function 4 Press Esc to return to the main menu 5 Select Save Exit Setup and press Enter Type Y and press Enter 6 Install Windows 98 by typing the following parame...

Страница 109: ...rsor to Settings then click Control Panel To check whether ACPI was properly installed double click the System icon In the System Properties dialog box click the Device Manager tab In View devices by...

Страница 110: ...og box Double click the Power Management icon 11 Click the Advanced tab In the When I press the power button on my computer field select Standby 9 Click File System In the Typical role of this compute...

Страница 111: ...ating session where you left off when you power off the computer will resume in not more than 8 seconds If you have changed the color or resolution in the Display Properties dialog box do not apply th...

Страница 112: ...de consists of a single long beep B 2 Error Messages One or more of the following messages may be displayed if the BIOS detects an error during the POST This list indicates the error messages for all...

Страница 113: ...fixed disk Hard Disk s fail 08 Sector Verify failed Keyboard is locked out Unlock the key The BIOS detects that the keyboard is locked Keyboard control ler is pulled low Keyboard error or no keyboard...

Страница 114: ...est the outlet by plugging in a lamp or other electrical device 4 The monitor is turned on 5 The display s brightness and contrast controls are adjusted properly 6 All add in boards in the expansion s...

Страница 115: ...hing happens 1 Check that one end of the AC power cord is plugged into a live outlet and the other end properly plugged into the back of the system 2 Make sure that the voltage selection switch on the...

Страница 116: ...a cable connection problem However if your hard drive has a large capacity it will take a longer time to format Parallel Port The parallel printer doesn t respond when you try to print 1 Make sure tha...

Страница 117: ...configured correctly Keyboard Nothing happens when a key on the keyboard was pressed 1 Make sure the keyboard is properly connected 2 Make sure there are no objects resting on the keyboard and that no...

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