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MVE466 System Board

Section 2

 Error Messages

ILLEGAL INSTRUCTION TRAPPED AT ADDRESS XXXX:XXXX   RESET

MACHINE

The BIOS has encountered an instruction that it cannot exe-
cute. Many times this is a result of an application that has not

been properly written and should occur during the same opera-

tion each time it is run. If the error does not occur each time,
the system board may have a cache or memory error which is
causing the data to become corrupt. Check the system board
with a diagnostic program and/or contact your supplier.

SEGMENT BOUNDARY OVERRUN TRAPPED AT ADDRESS XXXX:XXXX 

RESET 

Like the ILLEGAL INSTRUCTION 

 an application has

made a call that overflows a buffer or jumps to a memory
location that does not exist.

Copyright   1993

Version DO1

A - 5

Summary of Contents for MVE486

Page 1: ...MVE486 System Board Installation and Operations Guide P N 771917 DO1 Version DO1 March 1993...

Page 2: ...as specifically provided herein Mylex makes no warranties express or implied respecting this guide or the Mylex products referred to herein including but not limited to any warranty of design merchant...

Page 3: ...erference will not occur in a particular installation Should it be determined that this equipment is causing interference to radio or television reception the following suggested actions may be taken...

Page 4: ...he product must be free of damage Any software including firmware is provided as is without warranty of any kind expressed or implied The purchaser bears complete risk of the performance and quality o...

Page 5: ...rned in original packaging or other suitable materials 2 Each returned unit will be inspected for damage or other irregularities If a unit is shown to be modified the customer will be notified before...

Page 6: ...m Board Chapter 1 Installation A Quick Look At Jumper Settings 1 2 Installation 1 4 Planning the System 1 4 Installing Memory 1 4 Installing SIMM Memory l 7 Installing or Upgrading the CPU l 8 Color o...

Page 7: ...he MVE486 Cache Memory B 1 UpgradeKits B 2 Section 2 MVE486 EISA System BIOS Chapter 1 BIOS Overview BIOS Structure l l Chapter 2 BIOS Setup Invoking Setup Setting the Options 2 5 Time and Date 2 5 Ba...

Page 8: ...Routine Speaker Output BEEP Codes 3 l Error BEEP Decoding 3 3 POST Code Port 80h Definitions 3 4 Chapter 4 Installation Precautions 4 1 Handling the System BIOS 4 l Replacing the BIOS 4 l Removing th...

Page 9: ...stallation ZIF Socket Diagram l O Port Connectors for the MVE486 MVE486 Cable Connectors MVE486 Cache Fiaures Section 2 l l l 7 l 8 l 11 1 12 2 3 Fig 2 l Mylex CMOS Setup Screen l Fig 2 2 Mylex CMOS S...

Page 10: ...486 will provide years of trouble free operation Package Contents MVE486 System Board Cable Kit 2 serial cables and 1 parallel cable EISA Configuration Utility diskettes This manual EISA Configuration...

Page 11: ...rs that can break if subjected to sudden shock such as being tossed on a table Use care when moving the MVE486 from point to point If Troubles Are Encountered If during the course of installation or o...

Page 12: ...PC standard bus 33 MB set EISA is the architecture of choice All slots on the MVE486 are Bus Master and Burst Mode compatible ensuring EISA adapter compatibility VESA Bus Architecture VESA emerged as...

Page 13: ...usually 3 wait states or more the write back cache is the most efficient way for cache to write information back to main memory This is because the cache can be written to within a Zero Waitstate cyc...

Page 14: ...as setting a couple of jumpers There are no oscillators to purchase no components to desolder and resolder The clear benefit of this feature is the ability to select whatever processor speed desired H...

Page 15: ...Overview provides an overview of the Mylex system BIOS and describes its features Chapter 2 BIOS Setup describes how to use the setup program to configure your system board Chapter 3 BIOS Diagnostics...

Page 16: ...n MVE486 System Board A good working knowledge of computers is highly recommended for installing a system board It is not advised that a novice attempt installation of the MVE486 Copyright Q 1993 Vers...

Page 17: ...Installation Section 1 MVE466 System Board Chapter 1 Installation Jl J12 m 17rsE 10100 2 tEf J23 J7 J9 J9 JlO Figure 1 l WE486 System Board Copyright Q 1993 Version DO1 l l...

Page 18: ...tem Board Section 1 Installation A Quick Look At Jumper Settings DEFAULTSETTINGS I _ _ _ __ _ _ _ _ 2 3 CLOSE 1 2 CLOSE CLOSE I J13 CPU8 l 2 CLOSE 3 4 486DX 486DX2 1 2 CLOSE 3 4 l 2 Version DO1 Copyri...

Page 19: ...N l 2 OPEN OPEN l 2 OPEN CLOSE 1 2 m_m_l mIF CAt E SETTINGS Jl 1 2 3 CLOSE l 2 CLOSE 2 3 CLOSE I J20 OPEN J18 1 J24 OPEN OPEN I CLOSE OPEN CLOSE CLOSE CLOSE CLOSE u57 8Kx8 15NS 64K CACHE 8Kx8 15NS 128...

Page 20: ...onfiguration information Planning the System Using the simple form located in Appendix A the resources available can be planned and any problems such as hardware conflicts can be avoided ahead of time...

Page 21: ...ions Other combinations are not tested but are guaranteed to work 4MX36 4MX36 4MX36 8MX36 8MX36 8MX36 _ _ 112KX 36 512KX 36 2MX36 APKX 36 512K X 36 2MX36 1121 X 36 lMX36 2MX36 1 2KX 36 lMX36 2MX36 lMX...

Page 22: ...6 lMX36 2MX36 2MX36 2MX36 2MX36 4MX36 4MX36 4MX36 4MX36 _ _ _ _ _ _ 8MX36 8MX36 _ ___ _ _ __ 8MX36 8MX36 2MX36 4MX36 4MX36 __ __ 4MX36 4MX36 4MX36 8MX36 8MX36 8MX36 8MX36 8MX36 8MX36 8MX36 _ _ _ 8MX36...

Page 23: ...ledge of the SIMM should be towards the Pin 1 side of the SIMM socket on the motherboard The SIMM layout of the mother board is as follows SIMM 72 PIN PIN 1 Indicator KEYBOARDCONNECTOR BANK 3 2 1 P4 I...

Page 24: ...0486DX2 50 66 MHz OverDrive 50 MHz Once the processor that will be installed has been obtained follow these simple steps 1 2 3 4 5 Lift the lever on the upgrade socket Locate the pin 1 indicator on th...

Page 25: ...essor is installed only a single jumper is used covering pins 2 and 3 I 20 MHz J28 OPEN J26 OPEN _ _ J6 l 2 ___ _ _ ___ J27 CLOSE J29 OPEN J25 OPEN ___ __ J5 l 2 25 MHz 33 MHz 50 MHz __ ____ OPEN OPEN...

Page 26: ...r and mono adapter are installed place the jumper in the position to indicate which video adapter will be used during boot up Local Bus Jumper Settings The following table details the Local Bus enable...

Page 27: ...ounding at least 2 screws should be used to lock the system down See figure l 4 These two locations are the most commonly used points for screw mounting locations If more screw mounting locations are...

Page 28: ...ll any ribbon cables from the internal peripheral controllers to the disk drive s and I O port connectors Be sure the red or blue stripe along the edge of the ribbon cable is connected to Pin 1 See fi...

Page 29: ...imal infor mafion provided within this section and the Mylex 486 ISA BIOS Users Guide Section should be consulted for more information The Mylex BIOS that is installed on the MVE486 has a built in CMO...

Page 30: ...size data blocks with benefit the most from a larger cache size These programs include spread sheets and CAD programs The cache on the MVE486 has 4 major components l The cache controller This is the...

Page 31: ...t4mory 16MB 32MB 63MB To facilitate cache flushing invalidation the 1 MB area between 63MB to 64MB is always non cached Installing the Cache Memory Warning SRAM Chips are high y static sensitive devic...

Page 32: ...ed to make sure that none of the pins were bent under the chip Set the jumpers for the new cache size See table 2 2 6 Re install the system board into the chassis 7 When the system is powered back on...

Page 33: ...MVE System Board Section 1 Upgrading 84K 2 3 CLOSE OPEN OPEN OPEN OPEN 128K l 2 CLOSE OPEN CLOSE OPEN CLOSE 256K 2 3 CLOSE CLOSE CLOSE CLOSE CLOSE 2 4 Version DO1 Copyright 0 1993...

Page 34: ...y the beep codes and follow the procedures identified check the video card in a different slot and or different computer Floppy light is always on The floppy cable was installed backwards Reverse the...

Page 35: ...setting The MVE486 uses IRQ3 for the COM2 serial port Either disable COM2 or change the ethernet adapter settings Serial ports will not properly run a serial mouse Make sure the power supply has adeq...

Page 36: ..._ _ __I_ syeftem _ Processor Type System Speed Host Interface Slots _ __ L Memory _ Memory Type Memory Sizes Configurations Cache Type Cache Size c r _____ Descrlptfon Intel 80486DX DX2 or SX 20 25 33...

Page 37: ...16 Byte FIFO Centronics compatible 0825 Two 5 l 14 or 3 l 2 2 88 1 44 1 2 720 and 360 K sizes _ _ _ _ For drives with Integrated Drive Electronics AT BUS All I O configurations executed through BIOS...

Page 38: ..._ Deecription 5 amps typical at 5 volts 30 milliamps at 12 volts 32 F to 132 F O C to 5OOC Up to 90 noncondensing _ ___ Description i _ _ _ _ _ _ Integrated in real time clock chip DS 1387 I O Port C...

Page 39: ...MVE466 System Board Section 1 Technical Reference 8 9 ___ 10 GND N C 21 BUSY 23 PE 25 SLCT 10 12 14 16 18 20 22 24 26 4 4 Version DO1 Copyright 8 1993...

Page 40: ...Modem Hard Disk Ctlr Network Card 1 Network Card 2 Other 1 Other 2 IRQ 4 3 7 5 m AOOO O A7FF O L ___ COOO O C7FF O BOOO O B7FF O Instructions For each adapter that is installed in the system fill out...

Page 41: ...butor who carries these parts The Mylex customer service phone number is 510 796 6100 and is available Monday through Friday 8 00 a m 5 00 p m Stand ard Pacific mme The following information may assis...

Page 42: ...6 Mylex Upgrade Kits U P e iRFr rri 4 i UPGRADEKITS g Cj jpJJQfq 1 I p fp E R 128K Cache Upgrade Kit AKITCU 128 _ _ _ 256K Cache Upgrade Kit Default configuration AKITCU 256 _ Note 64K configuration i...

Page 43: ...MVE486 EISA System BIOS SECTION 2...

Page 44: ...S for use with their 80486 based EISA system boards The system BIOS contains three functiontional components They are l System BIOS Basic I O system This is a collec tion of routines and interrupt han...

Page 45: ...ll inform the user with a screen message or series of beeps If a screen message appears SETUP can then be invoked by pressing the function key as indicated in the message The setup program is accessed...

Page 46: ...p screens for the MVE486 system board Proceeding those figures are detailed descriptions of each field and their options Mylax CMOS setup Month Jw ary Hour 08 oats 01 12 e2 Day 12 MInIlIe 14 Tlmr 09 1...

Page 47: ...BIOS Setup Section 2 MVE406 System Board Figure 2 2 Mylex WE488 CMOS Setup Screen 2 Figure 2 3 Mylex CMOS Setup Screen 3 Copyright 0 1993 Version DO1 2 3...

Page 48: ...MVE486 System Board Section 2 BIOS Setup Figure 2 4 Mylex WE486 CMOS Setup Screen 4 Figure 2 5 Mylex MVE486 CMOS Setup Screen 5 2 4 Version DO1 Copyright 0 1993...

Page 49: ...months days years and time You will notice a calendar appears when setting the date Base Memory The base memory setting should be set automat ically by the system based upon the jumper set tings Norm...

Page 50: ...ired by a perhiperal adapter Important When running the EISA configuration utility make sure this option is enabled and cor rectly specified in the View Contiguration Mem ory field This is the remaini...

Page 51: ...isk drive for the proper drive setting If none of the preset listings apply to the drive being installed select type 48 and then P to begin programming Use the right and left arrow keys to move throug...

Page 52: ...after 9 for save and exit has been depressed Once this option is enabled a password must be input before the system will boot or any change to the SETUP can be made Note The password is case and space...

Page 53: ...resh This improves system performance by about 3 Note Depending upon the DRAM being used commonly 4 and 16MB SIMMs the hidden refresh feature may exceed the timing parameters of the DRAM If memory pro...

Page 54: ...n may be used to enable or disable the 486 s internal cache memory Secondary Cache This option may be used to enable or disable the external cache on the MVFCb6 Noncache Block 1 Because certain expans...

Page 55: ...Hole above 1MB of size 512KB 1MB or 2MB can be enabled so that expansion boards can configure the memory in this memory space For example A user wants to configure their Token Ring adapter with memor...

Page 56: ...o initiate a video system a coded sequence of tones will be played on the system speaker If a video system is available an error message will be displayed Part of the POST is the RAM test The RAM test...

Page 57: ...definitions according the position number of the long beeps LB 1 2 3 4 5 6 7 8 9 10 11 12 13 Always a long beep to signify the start of beep decoding Video card BAD or no video card Keyboard controll...

Page 58: ...sum failed Example 1 If errors are Keyboard error and RAM parity error you will hear the following LB sb sb LB sb sb sb sb sb LB 1 2 3 4 5 6 7 8 9 10 Example 2 If errors are No Video RAM refresh sild...

Page 59: ...CKSUM SEND KEYBOARD COMMAND TEST CMOS RAM TEST RAM REFRESH TEST FIRST 64K MEMORY TEST DMA CONTROLLER TEST INITIALIZE DMA INTERRUPT TEST DETERMINE RAM SIZE INITIALIZE VIDEO OF EGA VGA CHECKSUM SEARCH F...

Page 60: ...ST COPROCESSOR TEST RESET HARDDISWFLOPPY CONTROLLER INITIALIZE FLOPPY INITIALIZE HARDDISK CHECK OPTION ROM CSOO DFFF INITIALIZE SERIAL AND PARALLEL PORTS INTIALIZE TIME OF DAY CHECK OPTION ROM EOOO EF...

Page 61: ...ing any of the system BIOS metal legs Replacing the BIOS Caution Wear a ground strap before touching the sys tem Removing the Old BIOS First locate the BIOS on the system board refer to the User Manua...

Page 62: ...he BIOS chip is marked MW BIOS Installing the New BIOS Locate where the chip is to be installed ti Make sure pin 1 on the chip corresponds to pin 1 of the socket by aligning the notch on the chip with...

Page 63: ...TY RAM REFRESH CIRCUITRY FIRST 64K OF RAM FAILURE Note This error is caused by a faulty SIMM in the first bank Changing fhe SlMMs should correct this error RAM PARITY ERROR IN FIRST 64X Note This erro...

Page 64: ...sure you save the SETW HARDWARE INFORMATION LOST RUN SETUP Run SETUP Make sure you save the SETUP HARDWARE INFORMATION CORRUPTED RUN SETUP Run SETUP Make sure you save the SETUP HARDWARE INFORMATION...

Page 65: ...N IS INCORRECT RUN SETUP Run SETW FLOPPY HARDWARE INFORMATION IS SELF CONTRADICTORY Run SETUP FAILURE OF TRACK ZERO SIGNAL IN FLOPPY DISK DRIVE Either the floppy diskette or the drive is defective Rep...

Page 66: ...eert valid Boot Disk end press any key Non System Disk Please insert Boot Disk and press any key Booting from Hard Disk Hard diek absent failed Hard disk boot sector invalid This means that the boot s...

Page 67: ...same opera tion each time it is run If the error does not occur each time the system board may have a cache or memory error which is causing the data to become corrupt Check the system board with a di...

Page 68: ...26 1024 17 1224 17 1024 17 965 17 832 33 980 17 918 17 1024 17 1024 36 1024 17 776 33 10241 171 10 65 21 41 ST 225 ST 4026 32 12 65 45 49 09 21 41 3 2 1 7 31 90 ST 4038 117 50 21 41 37 21 5 2 0 9 21...

Page 69: ...CMOS Hard Drive Table Section 2 MVE466 System Board Note Unlisted numbers have no entries and are invalid _____ B 2 Version DO1 Copyright 0 1993...

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