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Chapter 2: Configuration and Layout

External Battery (JPl)

The 80486VESA motherboard provides one external battery

supply connector. The pin assignments are:

JP1 Pin# Assignment

1

Battery Positive

2 No Connection

3 Ground

4 Ground

Monitor Type (JP2)

Jumper JP2 is used to set the display type. The motherboard is

designed to work with both monochrome and color display

monitors. The pin assignments are:

JP2 Pin#

Function

1&2 (Closed)

l&2 (Open)

Monochrome Monitor

Color Monitor

Keyboard Connector (KBl)

The keyboard connector is a 5-pin DIN connector. This connector

consist of a 90-degree printed circuit board PCB mounting. The

pin assignments are:

KBl Pin# Assignment

8

keyboard clock

keyboard data

spare

ground

+5 v

80486VESA User’s Manual

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Содержание 80486VESA

Страница 1: ...Part No 03 0023X 00 ...

Страница 2: ...thout obligation to notify any person or organization of the revision or change IN NO EVENT WILL THE VENDOR BE LIABLE FOR DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAl DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS PRODUCT OR DOCUMENTATION EVEN IF ADVISED OF T H E POSSIBILITY OF SUCH DAMAGES IN PARTICULAR T HE VENDOR SHALL NOT HAVE LIABILITY FOR ANY HARDWARE SOFTWARE OR DATA STORED ...

Страница 3: ... Report C h a p t e r 2 Configuration and Layout Connector and Jumper Settings CPU Selection Cache Memory Configuration VESA VL Bus Identifier Motherboard Diagram Chapter 3 Installation and Operation Before You begin Installing The SIMM Modules Memory Configuration System Speed Change Memory Caching 5 5 9 IO 10 11 12 12 13 14 15 15 16 16 16 20 24 25 ...

Страница 4: ...lly follows the 486 CPU local bus Additional hardware functions are added to accommodate VL Bus master devices and intrractinn with the system I O bus The VL bus extends the capabilities of the 16 bit ISA bus to 32 bus architecture and up to 100Mb sec at 5 0 MHz data transfer rate while maintaining compatibility with ISA add on boards Advantage of VESA VL Bus ...

Страница 5: ...nce desktop publishing and the environments of network and multiuser systems The 80486VESA system board fully utilizes the 32 bit CPU power The 80486VESA system board also incorporates an Intel 80486 microprocessor which has an 8 KByte static RAM cache Included is a four way set associative cache controller implemented on the 80486 chip and an internal enhanced numeric coprocessor unit The system ...

Страница 6: ...mance l Two 32 bit VL Bus two 8 bit ISA bus and four 16 bit ISA bus slots l Fast A20 implementation to speed up multitasking operating system l Hidden DRAM refresh to boost system performance l SiS 460 Single Chip Performance Report 80486VESA 20 MHz l Landmark Speed Rating l Power Meter MIPS 80486VESA 25 MHz l Landmark Speed Rating l Power Meter MIPS 80486VESA 33 MI Iz l Landmark Speed Rating l Po...

Страница 7: ...see Figure 1 page 11 for locations Front Panel Reset Connector JP14 The reset button connector is a 2 pin single in line BERG strip It is used to reboot the system and will allow safe re initialization of the system at any time The connector should always be set in the OFF position otherwise the system will continually reset itself The pin assignments are JP14 Pin Assignment 1 Ground 2 Reset Strob...

Страница 8: ...ll speed Please refer to Chapter 3 Installation Operation for more information about speed change The pin assignments arc JP16 Pin Assignment 1 2 Front Panel Keylock and Power LED Connector JP18 Connector JP18 is a 5 pin single in line BERG strip which provides for the front panel keylock and power LED connection When it is connected to a lock on your system case you can enable or disable the keyb...

Страница 9: ...for the front panel speaker connection The pin assignments are JP17 Pin Assignment 1 speaker data 2 N C 3 ground 4 5 v Power Supply Connector PW1 There is a power supply connectors on board The pin assign ments are PWl Pin Assienment 1 power good 2 5 VDC 3 12 VDC 4 12 VDC 5 ground 6 ground 7 ground 8 ground 9 5VDC 10 5VDC 11 5VDC 12 5VDC ...

Страница 10: ... to set the display type The motherboard is designed to work with both monochrome and color display monitors The pin assignments are JP2 Pin Function 1 2 Closed l 2 Open Monochrome Monitor Color Monitor Keyboard Connector KBl The keyboard connector is a 5 pin DIN connector This connector consist of a 90 degree printed circuit board PCB mounting The pin assignments are KBl Pin Assignment 8 keyboard...

Страница 11: ...Open Close 486DX 486DX2 l 2 3 4 1 2 Open Close 486 Over Drive 168 pin 487SX 487SX2 486 Over Drive 169 pin l 2 3 4 2 3 Open Close P24T 486DX 486DX2 486SX DX PQFP l 2 3 4 l 2 Open Close 486 Over Drive 168 pin 487SX 487SX2 486 Over Drive 169 pin 486SX DX PQFP l 2 3 4 2 3 Open Close P24T CPU Clock Selection The 80486 VESA motherboard uses a CPU frequency generator to generate the clock instead of osci...

Страница 12: ...ns 1143 U34 1135 U36 U37 U39 U40 U41 and U42 For 128K cache install 8Kx8 SRAM in locations 1143 and 32Kx8 SRAM in locations U34 U35 U36 and U37 For 256K cache install 32Kx8 SRAM in locations U43 U34 U35 U36 U37 U39 U40 U41 and U42 VESA VL Bus Identifier Jumpers JP19 JP20 The identifier jumpers JP19 JP20 allow VL Bus slave to identify the speed of the host CPU 0 wait write min 1 wait write min Open...

Страница 13: ......

Страница 14: ...stem cover discharge any static electricity that might have accumulated in your body by touching a grounded or anti static surface e g anti static pads If nothing is available touch the power supply h o u s ing This assumes the system unit is plugged in and ground ing the case De certain to do this before removing components from their anti static coverings When handling separate cards boards or m...

Страница 15: ...e To install a SIMM memory module carefully follow the steps below Step 1 Insert the SIMM module s gold edge connectors into the socket at a 70 degree angle and guide the component side of the SIMM module to face the edge of the board The module can only fit into the socket one way Step 2 Gently press the SIMM module toward the edge of the board until it snaps into the socket in a vertical positio...

Страница 16: ...ing 256KB 1MB or 4MB SIMM mod ules The following are all the available memory configurations 1MB 256Kx9 2MB 256Kx9 256Kx9 4MB lMBx9 8MB lMBx9 lMBx9 16MB 4MBx9 20MB lMBx9 4MBx9 32MB 4MBx9 4MBx9 Table 4 Memory Configurations 14 80486VESA User s Manual ...

Страница 17: ...he system speed 9 Pressing the Keyboard Keys Note Before using the keyboard keys to control the system speed the turbo switch hasto be set to the off position 1 2 Press the CTRL ALT keys while simultaneously pressing the key to slow down the system speed Press the CTRL ALT keys while simultaneously pressing the key to speed up the system speed Memory Caching The 80486VESA system board provides an ...

Страница 18: ...henever the CMOS RAM has lost power Running AM1 BIOS When the system is powered on the BIOS will enter the Power On Self Test POST routines These routines are divided into two phases System Test and Initialization test and initialize system boards for normal operations System Configuration Verification compare defined configuration with hardware actually installed The AMI BIOS performs the various...

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Страница 21: ...s F6 Loads all features in the Advanced CMOS Setup with the BIOS Setup defaults F7 Loads all features in the Advanced CMOS Setup with the Power On defaults F10 Saves all changes made to Setup and exits program 80486VESA User s Manual 19 ...

Страница 22: ...rd disk C type 47 USER TYPE Cyln Head WPCom LZone Sect Size 642 8 0 0 1 7 43MB Hard disk D type Not Installed Floppy drive A 1 2MB 5 1 4 Floppy drive B Not Installed Primary display Monochrome Keyboard Installed Month Jan Feb Dec Date 01 02 03 31 Year 1901 1902 2099 I Esc Exit t d Select F2 F3 Color PgUp PgDn Modify Figure 4 The Standard CMOS Setup Screen The standard CMOS Setup utility is used to...

Страница 23: ...l 2 1 44MB 3 l 2 and Not Installed Not Installed could be used as an option for diskless workstations Primary Display Options are Monochrome Color 40x25 VGA PGA EGA Color 80x25 and Not Installed The Not Installed option could be used for network file servers Keyboard Options are Installed or Not Installed Not Installed is available for use as an option This option could be used for diskless workst...

Страница 24: ...nto account the timing differences between the inner and outer edges of the surface of the disk platter The number designates the starting cylinder of the signal l L Zone LZone is the landing zones of the heads This number determines the cylinder location where the heads will normally park when the system is shut down l Capacity This is the formatted capacity of the drive based on the following fo...

Страница 25: ...ted before any changes are allowed to any of the setup parameters Improper Use of Setup may Cause Problems If System Hangs Enter Setup by pressing the DEL key Do any of the following After Entering Setup i Alter Options to make System Work ii Load BIOS Setup Defaults iii Load Power On Defaults Hlit ESC to Stop now Any other Key to Continue Figure 5 BIOS Setup Warning message ...

Страница 26: ...u achieve an optimum operational environment From the following menu highlight the Advanced CMOS Setup option and press ENTER BIOS SETUP PROGRAM AMI BIOS SETUP UTILI T IES C 1990 American Megatrends Inc All Rights Reserved Auto Configuration With BIOS Defaults Auto Configuration With Power On Defaults Hard Disk Utility Standard C M O S Setup for Changing Time Date Hard Disk Type etc ...

Страница 27: ...ists the features and toptions available for each Available Options Disabled default Enabled 0300 default DOS 1 KB Enabled default Disabled Enabled default Disabled Enabled default Disabled Disabled default Enabled Disabled default Enabled Disabled default Enabled Disabled default Enabled Disabled default Enabled Enabled default Disabled Slowest 50 M Hz Slower 40 M Hz Faster 33 M Hz Fastest 25 2O ...

Страница 28: ...tically detect CPU type CPU frequency and number of cache banks to set up the optimal parameters to help your system achieve an optimum and reliable operation environment To set the parameter you want to meet your requirement the Auto Config Function has to be disabled Hard Disk Type 47 RAM Area If the BIOS Shadow RAM is disabled the Hard Disk Type 47 parameter table will use regular RAM There are...

Страница 29: ...OS setup PROGRAM AMI BIOS SE7 UP UTILITIES C 1 9 9 0 American Megatrends Inc All Rights Reserved Standard CMOS Setup Advanced CMOS Setup Auto Configuration With rower 011 Defaults Load BIOS Setup Defaults Values from ROM Table Y N L o a d BIOS Setup Default Values for Advanced CMOS and Chipset ESC Exit t L Select F2 F9 Color F10 Save Exit Figure 8 Auto Configuration w BIOS Defaults Menu 80486VESA ...

Страница 30: ... American Megatrends Inc A l l Rights Reserved Standard CMOS Setup Advanced CMOS Setup Auto Configuration With BIOS Defaults Load Power 011 Default Values from ROM Table Y N Load Power On Default Values for Advanced CMOS and Chipset ESC Exit c lt Select F2 F9 Color F10 Save Exit Figure 9 Auto Configuration w Power On Defaults Hard Disk Utility The Hard Disk Utility is basic drive setup software Al...

Страница 31: ...e changes and continue with the booting process From the following menu highlight the option and press ENTER BIOS SETUP PROGRAM AMI BIOS SETUP UTILITIES C 1990 American Megatrends Inc All Rights Reserved I Standard CMOS Setup Advanced CMOS Setup Auto Configuration With BIOS Defaults Auto Configuration With Power On Defaults Write to CMOS and Exit Y N ESC Exit td7 Select F2 F9 Color F10 Save Exit F...

Страница 32: ... 5 17 512 940 17 512 940 17 65535 6 15 17 256 511 I7 65535 733 17 65535 981 I7 65535 828 I7 65535 855 17 65535 855 17 128 319 17 65535 733 17 0 663 17 300 977 17 65535 977 I7 512 1024 17 300 732 17 300 732 17 300 733 I7 0 336 I7 0 925 I7 65535 925 17 7 5 4 754 17 65535 754 17 256 699 17 65535 823 I7 918 918 1 7 6 5 5 3 5 1024 17 65535 1024 I7 ...

Страница 33: ...0 9 I 7 1224 5 2 9 8 8 3 7 6 5 5 7 IO 15 15 1024 128 65535 512 128 987 987 820 977 981 512 65535 65535 65535 1024 17 612 17 1024 17 1024 17 615 17 987 17 987 17 820 17 977 17 981 17 830 17 830 17 918 17 1223 17 43MB 10MB 77MB 68MR 41MB 25MB 57MB 41MB 41MB 41MB 48M II 69MB 114MB 152MB ...

Страница 34: ... 80486 Over Drive P24T 486SX PQFP 486DX PQFP Co Processor Internal enhanced numeric coprocessor 486DX 486DX2 487SX 486 Over Drive P24T Cache Controller Internal 8K byte of cache memory Four way set associative Support for 64 128 256Kbyte external cache memory Direct mapped Write back BIOS AMI American Megatrends Inc Environment Operating Temperature 10 degrees C to 40 degrees C Required Airflow 50...

Страница 35: ...ven more important Most p o w e r supplies o n the market meet the standards required by the CPU however some have been found to be out of specification To be certain of the highest performance by your system be sure your power supply provicies a voltage range of 5 25 volts maximum to 4 95 volts minimum In areas with noisy power transmission we suggest the use of a line noise filter between the po...

Страница 36: ...e boot up procedure If a fatal error occurs you should consult w i t h your system manufacturer for possible repairs These fatal errors are usually communicated through a series of audible beeps The numbers on the fatal error list below correspond to the number of beeps for the corresponding error The following error messages are conveyed through a number of short beeps you can always identify the...

Страница 37: ...the CPU to operate in virtual mode This error message means that the BIOS is not ahle to switch the CPU into protected mode Processor Exception Interrupt Error The CPU on the motherboard has generated an exception interrupt Display Memory Read Write Error The system video adapter is either missing or its memory is faulty Note This is not a fatal e r r o r ROM Checksum Error The ROM checksum value ...

Страница 38: ...RUN SETUP UTILITY Pressing the Fl key will invoke the BIOS Setup Program The following are descriptions of the error messages l 8042 Gate A20 Error The gate A20 portion of the keyboard controller 8042 has failed to operate correctly The 8042 chip should be replaced l Address Line Short An error has occurred in the address decoding circuitry of the motherboard l Cache Memory Bad Do Not Enable Cache...

Страница 39: ...are saved a checksum value is generated to provide for error checking If the previous value is different from the value currently read this error message appears To correct this error you should run BIOS Setup Program l CMOS Display Type Mismatch The type of video stored in CMOS does not match the type detected by the BIOS Run the BIOS Setup Program to correct this error l CMOS Memory Size Mismatc...

Страница 40: ... Not Proper Some systems require that a video switch on the motherboard be set to either color or monochrome depending upon the type of video you are using To correct this situation set the switch properly Remember to shut down the system first DMA 1 Error An error has occurred with the first DMA channel on the motherboard DMA 2 Error An error has occurred with the second DMA channel on the mother...

Страница 41: ... problem l INTR l Error The interrupt channel l has failed the POST routine l INTR 2 Error The interrupt channel 2 has failed the POST routine l Invalid Boot Diskette The BIOS can read the diskette in floppy drive A but it can not boot up the system with it Use another boot diskette and follow the instructions on the screen l KB Interface Error The BIOS has found an error with the keyboard connect...

Страница 42: ...re XXXX is the address in hexadecimal at which the error has occurred Off Board means that it is part of the memory installed on an expansion card in an I O bus expansion slot as opposed to memory attached directly to the motherboard l On Board Parity Error The BIOS has encountered a parity error with some memory installed on the motherboard The message will appear as follows ON BOARD PARITY ERROR...

Страница 43: ...rn Merchandise Authorization RMA number A receipt or copy of invoice with date of purchase is also required before any warranty service will be rendered Write the RMA number legibly on the outside of the shipping carton and mail prepaid or hand carry to the manufacturer Shipping and handling charges will be applied for all orders that have to be mailed when service is complete This warranty covers...

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