American Megatrends Baby Voyager 80486, User Manual

Page 1: ...American Megatrends Inc 80486 Voyager LC Motherboard User s Guide MAN 661 4 27 01 ...

Page 2: ...y In no event shall American Megatrends be held liable for any loss expenses or damages of any kind whatsoever whether direct indirect incidental or consequential arising from the design or use of this product or the support materials provided with the product Trademarks American Megatrends acknowledges the following trademarks Intel and i486 are registered trademarks of Intel Corporation MS DOS X...

Page 3: ...of Quarterdeck Office Systems Toshiba is a registered trademark of Kabushiki Kaisha Toshiba Chips and Technologies NEAT and CHIPSet are registered trademarks of Chips and Technologies Incorporated Revision History 7 15 92 Initial printing 8 92 Errata sheet published 3 26 93 Minor revisions to manual ...

Page 4: ...hapter 2 Installation 7 Unpacking 7 Installation Steps 9 Step 1 Set Switch and Jumper Options 10 Step 2 Install Memory 13 Step 3 Install Processor 16 Step 4 Install the Motherboard 18 Step 5 Connect the Power Supply 20 Step 6 Connect the Keyboard 22 Step 7 Connect Cables 23 Step 8 Install Adapter Cards 28 Step 9 Perform Initial Test and Configuration 30 Chapter 3 BIOS Power On Self Test POST 31 AM...

Page 5: ...Checking Option 52 Video ROM Shadow 52 C000 Shadow RAM Cacheable 52 Section 4 ADVANCED CHIPSET SETUP 53 8 bit AT Cycle Wait State 54 16 bit AT Cycle Wait State 54 Cache Write Back 54 Non Cacheable Block 1 54 Non Cacheable Block 1 Size 54 Non Cacheable Block 1 Base 54 Section 5 AMIBIOS Password Support 55 Section 6 Hard Disk Utility 57 When to Use AMIBIOS Hard Disk Utilities 58 Hard Disk Format Uti...

Page 6: ... operation of the Super Voyager LC motherboard This manual is not meant to be read by the computer owner who purchases a computer with the Super Voyager LC motherboard It is assumed that you the computer manufacturer will use this manual as a sourcebook of information and that parts of this manual will be included in the computer owner s manual Technical Support If a Super Voyager LC motherboard f...

Page 7: ...hes wide by 13 inches in length It is similar in size to a standard baby AT motherboard The mounting hole locations allow this motherboard to be used with a baby AT chassis The height of the board components is no more than 1 inches but you should allow 2 inches of clearance for the power supply connectors See the following graphic for more information on height requirements ...

Page 8: ...page 69 for additional information about heat dissipation Processor Speeds The microprocessor has two clock speeds high and low High speed is set at time of manufacture to the processor speed 20 25 33 or 50 MHz Low speed is simulated by turning off the external and internal cache The clock speeds can be changed via the Ctrl Alt and Ctrl Alt keychords or via the Turbo switch The keychords can be ch...

Page 9: ... 20 25 or 33 MHz and 1 wait state for both read and write at 50 MHz Burst mode is supported for caching Cache Memory SRAM Type 33 and 50 MHz Super Voyager LC motherboards use 15 ns SRAM for cache memory 20 and 25 MHz Super Voyager LC motherboards use 20 ns SRAM Built in Battery The Super Voyager LC motherboard has a built in rechargeable 3 6 volt NiCad battery An optional external battery is suppo...

Page 10: ...ture Intel Upgrade Processor such as the P23T System BIOS The Super Voyager LC uses a customize AMIBIOS with a built in Setup configuration utility and hard disk drive utilities Via AMIBIOS Setup you can configure up to two user definable hard disk drive types You can easily configure systems with no video monitor keyboard or floppy disk drives in STANDARD CMOS SETUP CMOS RAM The Super Voyager LC ...

Page 11: ...Q15 three programmable timers and a system clock ability to access 32 16 and 8 bit memory devices and 16 and 8 bit I O devices standard ISA I O port addresses 0100h through 03FFh 24 bit memory addresses that can access 16 MB of memory address space uses an I O channel check to generate NMIs supports I O wait state generation has an open bus structure that permits multiple microprocessors to share ...

Page 12: ...C also has a keyboard lock function to prevent unauthorized access to the system CPU Socket The Super Voyager LC has a 168 pin PGA socket designed to be occupied by an Intel 80486DX 80486SX or 80486DX 2 microprocessor Speaker The Super Voyager LC has an attachment for an audio speaker Expansion Slots The Super Voyager LC has eight 16 bit AT compatible expansion slots ...

Page 13: ...hm resistor instead of the anti static mat Similarly a strip of conductive aluminum foil wrapped around the wrist and grounded through a 1 megohm resistor serves the same purpose 3 Inside the carton the Super Voyager LC motherboard is packed in an anti static bag and sandwiched between sheets of sponge Remove the sponge and remove the anti static bag Save the original packing material in case of r...

Page 14: ...Chapter 2 Installation 8 ...

Page 15: ...Super Voyager LC Motherboard User s Guide Series 61 Motherboard Layout ...

Page 16: ...h and jumper options Page 11 2 Install memory Page 15 3 Install math coprocessor or upgradeable processor Page 18 4 Install motherboard Page 20 5 Connect the power supply Page 22 6 Connect the keyboard Page 24 7 Connect cables Page 25 8 Install adapter cards Page 30 9 Perform initial test and configuration Page 32 Standoffs and mounting screws are not supplied with the 80486 Super Voyager LC mothe...

Page 17: ...e the graphic on page 9 for the location of SW1 If all four switches are OFF 64 KB of cache memory is configured 256 KB cache memory is configured if all switches are ON SW2 Diagnostics and Color SW2 consist of two switches The diagnostic switch is used for manufacturing diagnostics and should not be changed The motherboard is shipped with this switch OFF The switch should remain OFF The COL MONO ...

Page 18: ... are shorted if the Super Voyager LC motherboard has an 80486DX or DX 2 microprocessor Pins 2 3 are shorted if the motherboard has an 80486SX processor See the following graphic J17 Clock Select J17 is a three pin single inline berg Pins 1 2 are shorted if this Super Voyager LC has a 25 33 or 50 MHz processor Pins 2 3 are shorted if it has a 20 MHz processor See the following graphic ...

Page 19: ...Super Voyager LC Motherboard User s Guide ...

Page 20: ...hree pin berg Pins 1 2 are shorted if the Internal POWERGOOD signal is used Pins 2 3 are shorted if an External POWERGOOD Signal is used J33 CMOS RAM Drain J33 is a three pin single inline berg In normal operation pins 1 2 are shorted Short pins 2 3 to drain power from CMOS RAM as shown in the following graphic ...

Page 21: ...e the old password He then must run AMIBIOS Setup to reconfigure the system Step 2 Install Memory The main memory subsystem on the Super Voyager LC motherboard consists of two 32 bit memory banks of four sockets each Both banks house SIMM Single In line Memory Module DRAM packages The SIMM banks accept 256 KB x 9 1 MB x 9 or 4 MB x 9 bit SIMMs in the combinations shown below A SIMM bank must be co...

Page 22: ...as 16 MB of RAM or more the memory shown by AMIBIOS is 384 KB less than the total amount of memory installed Memory Features If both SIMM banks are filled all memory is interleaved Fast page access is supported Burst support is provided Hidden refresh is supported if both SIMM banks are used Bank1 must be filled before Bank0 If only one SIMM bank is filled it must be Bank0 Bank0 is the four SIMM s...

Page 23: ...00AN 7 Siemens HYM910005 70 4 MB x 9 Motorola MCM94000A 70 Samsung KMM594000A 70 Oki MSC2340 70459 Installing SIMMs Bank 0 and Bank 1 have four SIMM sockets each These sockets can be filled with 256 KB x 9 1 MB x 9 or 4 MB x 9 SIMMs Use only one type of module to fill each bank Place the Super Voyager LC motherboard on an anti static mat With the component side of the SIMM facing you firmly push t...

Page 24: ...s the 80486SX speed 20 or 25 MHz Installing the 80487SX on the Motherboard U54 is the empty 169 pin PGA socket between the cache memory and the microprocessor An 80487SX can be installed if an 80486SX processor is present Pin 1 of the socket is on a chamfered corner that corresponds to pin 1 of the 80487SX also on a chamfered corner Check for bent pins on the 80487SX Gently straighten any bent pin...

Page 25: ...ion 1 Turn the power off 2 Check the coprocessor orientation 3 Press the chip firmly to make sure that it is properly inserted 4 Visually inspect the coprocessor to make certain that all pins are connected 5 Power the system up again Call American Megatrends Technical Support at 404 246 8600 if still not configured Upgradeable Processor U54 can also be used to install a 169 pin Intel upgradeable p...

Page 26: ...on 20 Step 4 Install the Motherboard The mounting hole pattern on the Super Voyager LC motherboard is the same as the mounting hole pattern on a baby AT motherboard See the following graphic Legend screw hole Mounting hole ...

Page 27: ...offs from the solder side of the motherboard in the holes provided for them The standoffs lock in place 5 Find the slots provided for the standoffs on the chassis Hold the Super Voyager LC motherboard component side up with the edge with three standoffs toward you and the edge with the power supply connector away from you The edge connectors for the adapter cards should be on the left 6 Carefully ...

Page 28: ...n selected Power supplies often can run on a wide range of voltages but must be set usually with a switch to the proper range Use at least a 200 watt or larger power supply It should have built in filters to suppress radiated emissions The power supply is connected to P2 and P3 on the motherboard The connectors should be keyed to prevent connecting the plugs to the wrong connectors The keys on the...

Page 29: ... See the following figure for the location of connectors P2 and P3 AT compatible power supplies have two six pin connectors that are inserted in P2 and P3 The six pin connector with 3 red wires and 2 black wires is connected to P3 and the remaining six pin connector is connected to P2 ...

Page 30: ...Keyboard The keyboard connector is a five pin DIN socket see the graphic below and is labeled KEYBRD and J3 on the motherboard It accepts a standard AT compatible keyboard Pin Assignments 1 Keyboard clock 2 Keyboard data 3 Not used 4 Ground 5 VCC ...

Page 31: ...nector with the same color coded wires If so follow the wire to the switch or LED Pin 1 of all connectors is labeled on the graphic on page 9 as well as on the Super Voyager LC motherboard to identify the pin orientation when plugging in cables Summary of Connectors The following cables should be connected to the motherboard from the chassis Reset Switch cable to J22 Speaker cable to J15 Keyboard ...

Page 32: ... hard reset is done when the Reset button is pressed Pin 1 is ground and Pin 2 is Hard Reset See the following illustration J15 Speaker Cable J15 is a 4 pin single in line berg AMIBIOS signals hardware problems through the speaker Pin 1 on the motherboard is labeled by a plus Pin Description 1 VCC 2 Key 3 Ground 4 Data Out ...

Page 33: ... inline berg The keyboard lock allows you to lock the keyboard protecting the system from unauthorized use This connector is keyed with a blank hole Pin 1 on the motherboard is labeled with a plus sign The connector and the J18 pinout is shown below J18 Pinout Pin Description 1 LED power 2 Key 3 Ground 4 Keyboard Lock 5 Ground ...

Page 34: ...ia a cable The LED lights when the board is running at high speed Connect the Turbo LED to J16 as shown below J21 Turbo Switch J21 is a two pin berg that connects to the Turbo switch mounted on the chassis via a cable as shown below The Turbo LED switch is bipolar You can select Low or High speed by pressing the Turbo switch ...

Page 35: ...er an external battery can be used with the Super Voyager LC Connect the external battery to J1 If you connect an external battery to J1 the built in battery on the motherboard is automatically electrically isolated J1 is a four pin berg that connects to a 6 volt external battery The positive terminal indicated by a red wire connects to the pin labeled The J1 pinout is Pin Description 1 6 Volt 2 N...

Page 36: ...e an extension of the 8 bit board layout and are used in conjunction with the 8 bit board standard pins Pin Use Pin Use C1 SBHE D1 MEMCS16 C2 LA23 D2 IOCS16 C3 LA22 D3 IRQ10 C4 LA21 D4 IRQ11 C5 LA20 D5 IRQ12 C6 LA19 D6 IRQ13 C7 LA18 D7 IRQ14 C8 LA17 D8 DACK0 C9 MEMR D9 DREQ0 C10 MEMW D10 DACK5 C11 SD08 D11 DREQ5 C12 SD09 D12 DACK6 C13 SD10 D13 DREQ6 C14 SD11 D14 DACK7 C15 SD12 D15 DREQ7 C16 SD13 D...

Page 37: ...2 A8 SD01 B8 OWS A9 SD00 B9 12 A10 IOCHRDY B10 GND A11 AEN B11 SMEMW A12 SA19 B12 SMEMR A13 SA18 B13 IOW A14 SA17 B14 IOR A15 SA16 B15 DACK3 A16 SA15 B16 DREQ3 A17 SA14 B17 DACK1 A18 SA13 B18 DREQ1 A19 SA12 B19 REF A20 SA11 B20 SYSCLK A21 SA10 B21 IRQ7 A22 SA09 B22 IRQ6 A23 SA08 B23 IRQ5 A24 SA07 B24 IRQ4 A25 SA06 B25 IRQ3 A26 SA05 B26 DACK2 A27 SA04 B27 T C A28 SA03 B28 BALE A29 SA02 B29 5 A30 SA...

Page 38: ...iately Reinstall the connectors Call Technical Support at 404 246 8600 if there are problems If the system operates normally a memory display should appear on the monitor AMIBIOS POST should run POST beeps or displays error messages is unsuccessful Configure the System Run AMIBIOS Setup to provide the requested information and save the configuration data in CMOS RAM The system then resets runs POS...

Page 39: ...Test and Initialization test and initialize motherboards for normal operations and System Configuration Verification compare defined configuration with hardware actually installed BIOS Error Reporting If Then the error occurs before the display device is initialized a series of beeps sound Beep codes indicate that a fatal error has occurred The AMIBIOS Beep Codes are described on the next page the...

Page 40: ... within the first 64 KB of memory Or Timer 1 on the motherboard is not functioning 5 beeps Processor error The CPU Central Processing Unit has generated an error 6 beeps 8042 Gate A20 Failure Gate A20 on the keyboard controller 8042 allows the CPU to operate in protected mode AMIBIOS is not able to switch the CPU to protected mode 7 beeps Processor Exception Interrupt Error The CPU generated an ex...

Page 41: ...Hard Disk Utility to correct this problem Also check the C hard disk type in STANDARD CMOS SETUP to make sure that the hard disk drive type is correct C Drive Failure No response from hard disk drive C Replace drive C Cache Memory Bad Do Not Enable Cache Cache memory on the motherboard is defective Test cache memory with AMIDiag CH 2 Timer Error An error occurred with timer 2 CMOS Battery State Lo...

Page 42: ...MA channel on the motherboard DMA 2 Error An error occurred in the second DMA channel on the motherboard FDD Controller Failure AMIBIOS is not able to communicate with the floppy disk drive controller Check all appropriate connections after the system is powered down HDD Controller Failure AMIBIOS cannot communicate with the hard disk drive controller Check all connectors after the system is power...

Page 43: ...ation is known it is displayed as xxxxx If not the message is Memory Parity Error I O Card Parity Error at xxxxx An adapter card failed If the address is known it is displayed as xxxxx If not the message is I O Card Parity Error DMA Bus Time out A device drove the bus signal for more than 7 8 µseconds BIOS Configuration Summary Screen AMIBIOS System Configuration C Copyright 1985 1991 American Meg...

Page 44: ...pyright message Press Ins during system boot to display two additional BIOS Identification Strings These strings contain the AMIBIOS options If a problem occurs Step Action 1 Enable the Wait for F1 If any Error in ADVANCED CMOS SETUP option before using this method to freeze the screen 2 When a problem occurs freeze the screen by powering on the system and holding a key down on the keyboard 3 Copy...

Page 45: ...any time by pressing Ctrl Alt Processor speed can be decreased by pressing Ctrl Alt Of course the OEM can modify these keystroke combinations through AMIBCP The above settings are the default settings AMIBIOS Setup AMIBIOS Setup is divided into three parts STANDARD CMOS SETUP ADVANCED CMOS SETUP and ADVANCED CHIPSET SETUP ...

Page 46: ...sk drives monitor type and keyboard ADVANCED CMOS SETUP The ADVANCED CMOS SETUP discussed in Section 3 beginning on page 50 configures the system password keyboard typematic rate boot sequence and speed and enables system performance features such as Fast Gate A20 support ADVANCED CHIPSET SETUP ADVANCED CHIPSET SETUP configures chipset specific options and is discussed in Section 4 beginning on pa...

Page 47: ...powered on it is configured with these settings unless CMOS RAM has been corrupted AMIBIOS Setup resides in ROM BIOS Read Only Memory Basic Input Output System and is available each time the computer is turned on If for some reason CMOS RAM becomes corrupted the system is configured with the BIOS Default settings stored in this ROM file See page 43 for more information on default settings Starting...

Page 48: ...2 Change background colors F3 Change foreground colors F5 Restores the settings resident when the current AMIBIOS Setup session began These settings are taken from CMOS RAM if CMOS RAM was uncorrupted at the start of the session Otherwise the BIOS Setup default settings are used F6 Loads all options in ADVANCED CMOS SETUP and ADVANCED CHIPSET SETUP with the BIOS Setup defaults F10 Saves all change...

Page 49: ...SET SETUP is selected Press Enter to display the next screen Auto Configuration With BIOS Defaults Auto Configuration With BIOS Defaults uses the default system settings for all BIOS options The BIOS Setup defaults are best case settings that optimize system performance If CMOS RAM is corrupted the BIOS Setup default settings are automatically loaded Type Y and press Enter to use BIOS defaults The...

Page 50: ...to CMOS RAM Control is then passed to AMIBIOS The following prompt appears Write to CMOS and Exit Y N Type N and press Enter to return to the Main Menu Type Y and press Enter to save the system parameters and continue the boot process Do Not Write to CMOS RAM and Exit This option passes control to AMIBIOS without writing any changes to CMOS RAM Type N and press Enter to return to the Main Menu Typ...

Page 51: ...Super Voyager LC Motherboard User s Guide Section 2 STANDARD CMOS SETUP Overview Press Enter when STANDARD CMOS SETUP is highlighted The following appears ...

Page 52: ...n to change the settings Ranges for each setting are shown in the lower right corner of the screen Time Hour Minute and Second This option uses a 24 hour clock format For PM numbers add 12 to the hour Enter 4 30 P M as 16 30 00 Move the cursor to the Time field via the and keys and set the time by pressing PgUp and PgDn STANDARD CMOS SETUP Options ...

Page 53: ...user definable hard disk drives The parameters are Parameter Description Type The number for a drive with certain identification parameters Cylinders The number of cylinders in the disk drive Heads The number of heads in the disk drive Write Precompensation The size of a sector gets progressively smaller as the track diameter diminishes Yet each sector must still hold 512 bytes Write precompensati...

Page 54: ...1023 17 60 MB 20 733 5 300 732 17 30 MB 21 733 7 300 732 17 43 MB 22 733 5 300 733 17 30 MB 23 306 4 0 336 17 10 MB 24 925 7 0 925 17 54 MB 25 925 9 65535 925 17 69 MB 26 754 7 754 754 17 44 MB 27 754 11 65535 754 17 69 MB 28 699 7 256 699 17 41 MB 29 823 10 65535 823 17 68 MB 30 918 7 918 918 17 53 MB 31 1024 11 65535 1024 17 94 MB 32 1024 15 65535 1024 17 128 MB 33 1024 5 1024 1024 17 43 MB 34 6...

Page 55: ...lected Primary Display Move to this field via the and keys and select the monitor type via PgUp and PgDn The settings are Monochrome Color 40x25 VGA PGA EGA Color 80x25 or Not Installed which configures network file servers AMIBIOS does not generate missing monitor messages if Not Installed is selected Keyboard Move to this field via the and keys and choose a setting via PgUp and PgDn The settings...

Page 56: ...s to scroll through the options Help Screens ADVANCED CMOS SETUP has a series of help screens accessed by pressing F1 which displays the settings for an AMIBIOS Setup option when that option is highlighted Warning Message A warning message is displayed each time STANDARD CMOS SETUP ADVANCED CMOS SETUP or ADVANCED CHIPSET SETUP is selected Press any key to continue ...

Page 57: ...pematic Rate Delay it repeats at the Typematic Rate Above 1 MB Memory Test When enabled the POST memory routines run on memory above 1 MB If disabled only the first 1 MB is tested The settings are Enabled or Disabled Hard Disk Type 47 RAM Area You can specify a user definable hard disk type for drive C and or D The drive parameters are entered in STANDARD CMOS SETUP see page 47 This option specifi...

Page 58: ...system boot The settings are Enabled or Disabled The defaults are Disabled System Boot Up Sequence This option sets the sequence of drives that AMIBIOS looks for at system boot The settings are C A or A C The BIOS Setup default is C A The Power On default is A C System Boot Up CPU Speed This option sets the system speed when the system boots The settings are High or Low The BIOS Setup and Power On...

Page 59: ... Video ROM Shadow C000 32K When enabled this option copies the 32 KB of Video ROM at C000h C7FFh to RAM The settings are Enabled the default or Disabled C000 Shadow RAM Cacheable The settings are Enabled or Disabled If enabled the 32 KB shadowed video memory can also be cached in the 80486 internal cache memory which may result in bad video data because the internal cache cannot be write protected...

Page 60: ...VANCED CHIPSET SETUP screen is shown below Use the and keys to scroll through the options Help Screens As with all AMIBIOS Setup screens each ADVANCED CHIPSET SETUP option has context sensitive Help information Press F1 when the option is highlighted to display the Help screen for that option ...

Page 61: ...Super Voyager LC Motherboard User s Guide Warning Screen A warning screen appears when ADVANCED CHIPSET SETUP is selected Press any key to continue ...

Page 62: ...ng algorithm is used Non Cacheable Block 1 This option selects the allocation method used for Non Cacheable Block 1 The settings are DRAM local DRAM is used the default or ATBus DRAM is disabled and the AT bus is used Non Cacheable Block 1 Size If the Non Cacheable Block Base Address setting is 512 KB the block size settings are 128 KB or Disabled the default If the Non Cacheable Block 1 Base Addr...

Page 63: ...ing a Password The password check option is enabled in ADVANCED CMOS SETUP see page 53 by choosing either Always or Setup The password is stored in CMOS RAM The following prompt appears when the system boots Enter CURRENT Password Enter a 1 6 character password Make sure you write it down If you forget it you must drain CMOS RAM and totally reconfigure the system If You Do Not Want to Use a Passwo...

Page 64: ...e next time the system boots you are prompted for the password if the password function is present and has been enabled Password Options Control Prompt When and if the prompt appears depends on the Password Option settings in ADVANCED CMOS SETUP If Always was set in ADVANCED CMOS SETUP the prompt appears when the system is powered on If Setup was set the prompt appears when AMIBIOS Setup is execut...

Page 65: ...ptimum interleave factor and then performs a low level format of the hard disk drive Page 63 Media Analysis Analyzes each hard disk drive track to determine whether it is usable The track is labeled bad if unusable Page 55 The hard disk utility error messages are described on page 65 These routines work on drives that use the MFM RLL ARLL or ESDI data recording techniques They do not work on IDE o...

Page 66: ...ctor and the drive is preformatted None Installing a new hard disk You do not have a list of bad tracks Media Analysis Installing a new hard disk You do not know the optimum interleave factor Auto Interleave Installing a new hard disk The drive is not formatted Hard Disk Format Installing a used hard disk drive N A All Hard Disk Utilities When Hard Disk Diagnostics is selected the following screen...

Page 67: ...efore running this utility This routine does not work on IDE or SCSI drives Use Hard Disk Format to integrate a new hard disk to the system or to reformat a used hard disk which has developed bad tracks as a result of aging or poor handling Select Media Analysis to find bad tracks The following screen appears when Hard Disk Format is selected Hard Disk Format Screen ...

Page 68: ...be selected manually or determined by the Auto Interleave routine The hard disk drive manufacturer usually provides a list of bad tracks Enter these tracks They are then labeled as bad to prevent data from being stored on them The following screen is displayed after entering Y in Mark Bad Tracks pressing Enter and selecting add delete revise or clear from the Bad Track Edit Menu Type Y and press E...

Page 69: ...e hard disk for each transfer rate calculated The cylinders heads and sectors formatted for each value is displayed in the activity box It does not work on IDE or SCSI drives Select Auto Interleave on the main Hard Disk Utility Screen and press Enter The following appears The cursor is on Mark Bad Tracks The default is N To mark additional bad tracks type Y and press Enter After selecting options ...

Page 70: ...inders and heads on the hard disk to verify any bad tracks the test requires several minutes to complete For best results run this test in its entirety Media Analysis does not work on IDE or SCSI drives Select Media Analysis from the main Hard Disk Utility Menu and press Enter The following screen appears Media Analysis Screen The cursor is on Proceed The warning screen appears Press Enter to stop...

Page 71: ...ROR Bad Hard Disk No response from the hard disk or the hard disk is not repairable Check all cable and power connections to the hard disk Hard Disk Controller Failure Error response from the reset command sent to the hard disk controller The controller may not be seated properly in the BUS slot C D Hard Disk Failure The hard disk drive C or D is not responding to commands Check power and cable co...

Page 72: ... drive has timed out The hard disk drive utility has waited beyond a preset specified time limit Drive Parameter Activity Failed A reset command was sent to the controller followed by drive parameters Using these parameters the controller did not get a response from the hard disk Make sure the drive type is correct ECC Corrected Data Error The ECC value explained above read from the disk is not th...

Page 73: ...re Step Action 1 Move all switches on SW1 to ON 2 Remove all old SRAM chips from U34 U35 U36 U37 U38 U39 U40 and U41 3 Place the new 28 pin 32 KB x 8 static RAM chips in U34 U35 U36 U37 U38 U39 U40 and U41 Make sure that the pins are straight and that all pins are inserted in the receptacles 4 Turn the system on The Boot Screen should display 256 KB of cache memory If 256 KB does not display check...

Page 74: ...Appendix A Upgrading Cache Memory 68 Cache Diagram ...

Page 75: ... power is concentrated in a small area it is necessary to remove the heat generated by this power consumption For this reason we have supplied a heat sink with all American Megatrends motherboards and CPU Cards that have a 50 MHz 80486DX or 66 MHz 80486DX2 CPU Since American Megatrends manufactures only the motherboard and CPU Card system components it has no control over operating factors such as...

Page 76: ... one hour Expected Results If the temperature on the surface of the heat sink is 75 degrees centigrade or below there will be no problem with the operation of the computer Identifying a Problem If the temperature exceeds 75 degrees centigrade the system integrator must take the necessary measures to ensure that the CPU does not overheat Potential Solutions Install a fan to increase the air flow ov...

Page 77: ...n the motherboard to determine if it is a C T 386 or C T NEAT CHIPset QEMM incorrectly determines that a C T CHIPset is installed on the Series 61 motherboard and tries to program I O registers specific to the C T CHIPset This feature was written only for motherboards containing the C T CHIPset and causes the Series 61 motherboard to reboot To prevent QEMM from programming the I O registers add De...

Page 78: ...s Display Keyboard Error During POST Yes CMOS SETUP Option Present ADVANCED CMOS SETUP Option Present ADVANCED CHIPSET SETUP Option Present POWER MANAGEMENT SETUP Option Absent PERIPHERAL SETUP Option Absent BIOS Setup Def Auto Configuration Option Present Power On Def Auto Configuration Option Absent Change Password Option Present Hard Disk Utility Option Present BIOS Features BIOS Date 12 12 91 ...

Page 79: ... LC Motherboard User s Guide Miscellaneous BIOS Facts Continued Advanced BIOS Features Clock Switching through a special port High On value I O port 00E8h Data 02 Mask FD Low Off value I O port 00E8h Data 00 Mask FD ...

Page 80: ...r Messages 33 Password Check 52 Password Support 55 POST Power On Self Test 31 Setup options 71 BIOS Setup 37 Board Layout 8 Built in Battery 3 C Drive Error 33 C000 Shadow RAM Cacheable 52 Cables 23 Cache Write Back 54 CMOS Display Type Mismatch 33 CMOS Shutdown Register Read Write Error 32 CMOS System Options Not Set 33 Configuring System 30 Connectors J3 Keyboard Connector 22 PS2 Power Supply 2...

Page 81: ...eaker Cable 24 J16 26 J16 Turbo LED 26 J17 Clock Select 12 J18 Keyboard Lock Connector 25 J21 Turbo Switch 26 J22 Reset Button Connector 24 J23 PowerGood Select 12 J33 CMOS RAM Drain 12 13 Jumpers 10 Keyboard J3 Connector 22 Keyboard Lock Connector 25 Layout 8 Manufacturing Test Port 31 Mark Bad Tracks 61 Media Analysis Utility 57 62 Memory Fast page access 14 Hidden refresh 14 Installation 13 Int...

Page 82: ...ard 48 Monitor 48 Options Main Menu 41 Password Check 52 ROM Shadow 52 Running Setup 39 STANDARD CMOS SETUP 43 System Boot Up CPU Speed 52 System Boot Up Num Lock 51 System Boot Up Sequence 52 Typematic Rate 50 Typematic Rate and Delay 50 Typematic Rate Delay and Typematic Rate 50 Warning Message 41 Warning Screen 49 SIMMs 13 Installing 15 Part numbers 15 Speaker Cable Connector 24 Specifications ...

Page 83: ...Index Index Continued Turbo LED 26 Turbo Switch 26 U33 17 Unpacking the Motherboard 7 Upgradable Processor 17 VGA adapters 10 Video ROM Shadow C000 32K 52 Warning Message 41 ...