American Megatrends 62 Series User Manual Download Page 63

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Baby Screamer LC Motherboard User's Guide

5 9

Index,

Continued

Technical Support vi
Testing System 22
Turbo LED 19
Turbo Switch 19
Typematic Rate 40
Typematic Rate Delay 40
Typematic Rate Programming 40
U22 12
Unpacking 5
VGA adapters 8
Video ROM Shadow C000,16K 42
Video ROM Shadow C400,16K 42
Weitek

Installing 12

Summary of Contents for 62 Series

Page 1: ...American Megatrends Inc Series 62 Baby Screamer LC 80386 Motherboard User s Guide MAN 662 7 8 92 ...

Page 2: ...al 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 is a registered trademark of Intel Corporation MS DOS Xenix and Microsoft are registered trademarks of Microsoft Corporation IBM AT VGA PS 2 OS 2 and EGA are registered trademarks of International Business Machines Corporati...

Page 3: ... 23 AMIBIOS Beep Codes 24 AMIBIOS Displayed Messages 25 BIOS NMI Handler Messages 27 Chapter 4 AMIBIOS Setup 29 Section 1 Running AMIBIOS Setup 31 Section 2 Standard CMOS Setup 35 Section 3 Advanced CMOS Setup 39 Typematic Rate Programming 40 Typematic Rate Delay 40 Typematic Rate 40 Numeric Processor 41 Weitek Processor 41 Floppy Drive Seek At Boot 41 System Boot Up Sequence 41 System Boot Up CPU...

Page 4: ... 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 T e c h n i c a l S u p p o r t T e c h n i c a l S u p p o r t If an motherboard fails to operate as described or you are in doubt about a configuration option please call technical support at 404 246 8600 A...

Page 5: ... The 80386 Baby Screamer LC is an IBM AT compatible motherboard approximately 8 6 by 13 inches It is identical in size to a standard XT motherboard with identical mounting hole locations The height of the board components is no more than 1 inches Allow 2 inches of clearance for the power supply connectors See the following graphic ...

Page 6: ... 64 KB of two way set associative or 128 KB of direct mapped cache memory Cache memory is supplemented by a four byte doubleword write buffer that allows it to operate at zero read and write wait states The cache memory operates on up to 128 MB of system memory S y s t e m M e m o r y S y s t e m M e m o r y The Baby Screamer LC can have up to 128 MB on the motherboard The Baby Screamer LC uses 25...

Page 7: ... e a l T i m e C l o c k a n d C M O S R A M w i t h B u i l t i n B a t t e r y R e a l T i m e C l o c k a n d C M O S R A M w i t h B u i l t i n B a t t e r y The Baby Screamer LC has a built in Dallas Semiconductor DS1287 Real Time Clock CMOS RAM chip that has a built in rechargeable 3 6V battery The Baby Screamer LC has 128 bytes of battery backed CMOS RAM to store system configuration infor...

Page 8: ... 16 and 8 bit I O devices I O bus operating at 8 MHz 8 and 16 bit IBM AT compatible expansion slots the standard I O address space of 100h through 3FFh 24 bit memory addresses to access 16 MB of memory uses the I O channel check to generate an NMI has I O wait state generation has an open bus structure allowing multiple microprocessors to share the system s resources including memory allows system...

Page 9: ...um foil grounded through a 1 megohm resistor instead of the anti static mat Similarly a strip of conductive aluminum foil wrapped around the wrist and grounded through a 1megohm resistor serves the same purpose as the wrist band 3 Inside the carton the motherboard is packed in an anti static bag and sandwiched between sheets of sponge Remove the sponge and remove the anti static bag Place the moth...

Page 10: ...Chapter 2 Installation 6 ...

Page 11: ... t i o n A c t i o n T u r n t o T u r n t o 1 Set switch and jumper options Page 8 2 Install memory Page 9 3 Install coprocessors Page 12 4 Install motherboard Page 14 5 Connect the power supply Page 16 6 Connect the keyboard Page 17 7 Connect cables Page 18 8 Install adapter cards Page 20 9 Perform initial test and configuration Page 22 Standoffs and mounting screws are not supplied with the 803...

Page 12: ...nostics is used for manufacturing diagnostics The motherboard is shipped with this switch Off The switch should remain Off 2 COL MONO sets the type of video display adapter card in the system This switch is factory set to Off for a monochrome display adapter MDA Set On for a color graphics adapter CGA This switch has no effect on EGA and VGA adapters J 1 0 0 J 1 0 0 C a c h e S i z e S e l e c t C...

Page 13: ...y Screamer LC supports the following motherboard memory configurations Bank0 Bank1 Total Memory 256 KB x 9 SIMMs None 1 MB 256 KB x 9 SIMMs 256 KB x 9 SIMMs 2 MB 1 MB x 9 SIMMs None 4 MB 1 MB x 9 SIMMs 1 MB x 9 SIMMs 8 MB 4 MB x 9 SIMMs None 16 MB 4 MB x 9 SIMMs 4 MB x 9 SIMMs 32 MB 16 MB x 9 SIMMs None 64 MB 16 MB x 9 SIMMs 16 MB x 9 SIMMs 128 MB The amount of system memory displayed by the BIOS ...

Page 14: ...resh CAS before RAS tCAC 20ns tRAC 70 ns tAA 45ns tRP 70 ns tCPA 45ns S I M M P a r t N u m b e r s S I M M P a r t N u m b e r s Memory Type Manufacturer Part Number 1 MB x 9 Fujitsu MB85235 70 Toshiba THM91070AS 70 THM91000AS 70 Motorola MCM91000S 70 MCM91430S 70 Oki MSC2312A 704S9 NEC MC 42100A9 70 Samsung KMM591000AN 7 Siemens HYM910005 70 4 MB x 9 Motorola MCM94000A 70 Samsung KMM594000A 70 O...

Page 15: ...B x 9 or 16 MB x 9 SIMMs Use only one type of SIMM to fill each memory bank 1 Place the motherboard on an anti static mat 2 Firmly push the SIMM into the socket with the component side facing the interior of the motherboard When properly inserted the SIMM will click into place The following graphic illustrates SIMM installation S I M M T y p e s S I M M T y p e s The graphic below shows the two ty...

Page 16: ...K 3 1 6 7 o n t h e M o t h e r b o a r d I n s t a l l i n g t h e W T K 3 1 6 7 o n t h e M o t h e r b o a r d U22 is the empty 121 pin PGA socket between the cache memory and microprocessor The socket is labeled Weitek Pin 1 of the socket is near the chamfered edge of the socket This corner corresponds to pin 1 of the Weitek also identified by a chamfered edge on the bottom of the coprocessor ...

Page 17: ... coprocessor will fit in the Weitek 121 pin PGA socket The 80387 and 83D87 are 64 pin PGA mount coprocessors Surface mount coprocessors will not work Fist enable the Numeric Coprocessor option in Advanced CMOS Setup in the BIOS Setup utility see page 41 When installing the Cyrix or Intel coprocessor align pin 1 as described for the Weitek remember the chamfered edge is on the bottom of the coproce...

Page 18: ...ssage is not displayed reinstall the coprocessor Switch off the power check the orientation of the coprocessor press the chip firmly to make sure that it is fully inserted and then power the system up again If the same result occurs call Technical Support at 404 246 8600 Step 4 Install the Motherboard Step 4 Install the Motherboard The mounting hole pattern on the Baby Screamer LC motherboard is i...

Page 19: ...he motherboard in the holes provided for them The standoffs lock in place g Find the slots provided for the standoffs on the chassis h Hold the motherboard component side up with the edge with three standoffs toward the front and the edge with the power supply connector away from you The edge connectors for the adapter cards are on the left i Carefully slide the motherboard into the chassis Make c...

Page 20: ...roper voltage has been 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 which should have built in filters to suppress radiated emissions AT compatible power supplies have two six pin connectors that are inserted in P1 and P2 The six pin connector with three red wires and two b...

Page 21: ...some power supplies Key 6 on the top of P2 should have been cut Key 3 on the top of P1 should have been removed If these keys are still in place remove them See the following figure for the key locations Step 6 Connect Step 6 Connect the Keyboard the Keyboard The keyboard connector is a five pin DIN socket labeled KEYBRD and J1 It will accept a regular IBM AT compatible keyboard Pin Assignments 1 ...

Page 22: ...eled to identify the pin orientation when plugging in cables The following cables should be connected to the motherboard from the chassis Reset Switch cable to J6 Speaker cable to J7 Keyboard Lock cable to J14 Turbo LED cable to J13 Hardware Deturbo Switch to J8 C o n n e c t t h e R e s e t S w i t c h C o n n e c t o r C o n n e c t t h e R e s e t S w i t c h C o n n e c t o r J6 is a two pin s...

Page 23: ...C o n n e c t t h e K e y b o a r d L o c k C o n n e c t o r J14 is a five pin single inline berg that should be attached to the keyboard lock via a five wire cable This connector is keyed with a blank hole Pin Description 1 LED power 2 Key 3 Ground 4 Keyboard Lock 5 Ground J 1 3 T u r b o L E D J 1 3 T u r b o L E D J13 is a two pin berg that should be attached to the externally mounted Turbo LE...

Page 24: ...r cards 1 6 B i t I S A E x t e n s i o n 1 6 B i t I S A E x t e n s i o n P i n o u t P i n o u t The following 16 bit pins are 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 DR...

Page 25: ...03 B6 DREQ2 A7 SD02 B7 12 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 BA...

Page 26: ...system operates normally a display should appear on the monitor The BIOS Power On Self Test POST should execute If POST does not run successfully it will beep or display error messages If the system beeps a serious problem exists with the system configuration or hardware The beeps are part of a Beep Code see page 24 that indicates a bad or improperly installed component Make sure the affected part...

Page 27: ...itialization test and initialize motherboards for normal operations and System Configuration Verification compare defined configuration with hardware actually installed B I O S E r r o r R e p o r t i n g B I O S E r r o r R e p o r t i n g Errors are reported in one of two ways If Then the error occurs before the display device is initialized a series of beeps will sound Beep codes indicate that ...

Page 28: ...y block 3 Base 64 KB Memory Failure Memory failure in the first 64 KB memory block 4 Timer Not Operational Memory failure in the first 64 KB of memory or Timer Number1 on the motherboard is not functioning 5 Processor error The CPU on the motherboard generated an error 6 8042 Gate A20 Failure Gate A20 on the keyboard controller 8042 allows the CPU to operate in protected mode The BIOS cannot switc...

Page 29: ...aved a checksum value is generated for error checking The previous value is different than the current value Run AMIBIOS Setup CMOS System Options Not Set The configuration data in CMOS RAM is either corrupt or nonexistent Run AMIBIOS Setup CMOS Display Type Mismatch The video type in CMOS RAM does not match the type detected by the BIOS Run AMIBIOS Setup CMOS Memory Size Mismatch The amount of me...

Page 30: ...yboard Make sure an American Megatrends Keyboard Controller BIOS is installed Set the Keyboard option in Standard CMOS Setup to Not Installed to skip the keyboard POST routines KB Interface Error Error in the keyboard connector on the motherboard No ROM BASIC Cannot find a proper bootable sector on either diskette drive A or hard disk drive C Cannot find ROM Basic Off Board Parity Error Parity err...

Page 31: ... Bus Time out A device has driven the bus signal for more than 7 8 microseconds POST Memory Test POST Memory Test Normally the only visible POST routine is the memory test The power on screen is shown below AMIBIOS C 1991 American Megatrends Inc Summit 386 BIOS XXXXX KB OK Hit DEL if you want to run SETUP C American Megatrends Inc XX XXXX XXXXXX XXXXXXXX XXXXXX XXXX X A BIOS Identification string ...

Page 32: ...it DEL if you want to run SETUP Press Del to access AMIBIOS Setup BIOS Configuration Summary Screen BIOS Configuration Summary Screen The AMIBIOS displays the following screen when the POST routines are successfully completed AMIBIOS System Configuration C Copyright 1985 1991 American Megatrends Inc Main Processor Numeric Coprocessor Floppy Drive A Floppy Drive B Display Type AMIBIOS Date 80386 No...

Page 33: ... m o r y E n a b l e The end user can enable cache memory at any time by pressing Ctrl Alt Shift or disable cache by pressing Ctrl Alt Shift AMIBIOS Setup AMIBIOS Setup The AMIBIOS Setup utility for the Series 62 motherboard is divided into two parts Standard CMOS Setup and Advanced CMOS Setup S t a n d a r d C M O S S e t u p S t a n d a r d C M O S S e t u p The AMIBIOS Standard CMOS Setup utili...

Page 34: ... d v a n c e d C M O S S e t u p A d v a n c e d C M O S S e t u p The Advanced CMOS Setup allows the end user to configure more advanced parts of memory configuration peripheral support and power management support Advanced CMOS Setup is discussed in Section 3 on page 39 ...

Page 35: ...ues unless CMOS RAM has been corrupted The AMIBIOS Setup resides in the 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 default values stored in this ROM file There are two sets of BIOS values stored in the ROM file the BIOS Setup default values and the Power On ...

Page 36: ...lays Help F2 Change background colors F3 Change foreground colors F5 Restores the values resident when the current Setup session began These values are taken from CMOS RAM if CMOS RAM was uncorrupted at the start of the session Otherwise they will be the BIOS Setup default values F6 Loads all features in the Advanced CMOS Setup with the BIOS Setup defaults F7 Loads all features in the Advanced CMO...

Page 37: ...0 Save Exit The Standard CMOS Setup option is described on pages 35 through 38 The Advanced CMOS Setup option is described on pages 39 through 42 The Change Password option is discussed on page 43 The Hard disk Utilities are described on pages 45 through 53 Auto Configuration With BIOS Defaults Auto Configuration With BIOS Defaults uses the default system settings for all BIOS options The BIOS def...

Page 38: ...e features selected and configured in Standard Setup Advanced CMOS Setup and Password Setup are stored in CMOS RAM when this option is selected A checksum is calculated and written to CMOS RAM Control is then passed to the BIOS The following appears Write to CMOS and Exit Y N Press N and Enter to return to the Main Menu Press Y and Enter to save the system parameters and continue the boot process ...

Page 39: ... u t e a n d S e c o n d Move the cursor to the Time fields via or and set the hour minute and second by pressing PgUp and PgDn to change values This option uses a 24 hour clock format Add 12 to the hour for PM hours For example enter 4 30 P M as 16 30 00 D a t e D a t e A n d D a y C o n f i g u r a t i o n A n d D a y C o n f i g u r a t i o n Move the cursor to the Date field via or and set the...

Page 40: ... with certain identification parameters Cylinders The number of cylinders in the disk drive Heads The number of heads Write Precompensation The size of a sector gets progressively smaller as the track diameter diminishes Yet each sector must still hold 512 bytes Write precompensation circuitry on the hard disk compensates for the physical difference in sector size by boosting the write current for...

Page 41: ... 17 41 MB 18 977 7 65535 977 17 57 MB 19 1024 7 512 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 65...

Page 42: ...or and select the floppy type by pressing PgUp and PgDn to change values The settings are 360 KB 5 inch 1 2 MB 5 inch 720 KB 3 inch 1 44 MB 3 inch or Not Installed which is used for diskless workstations The BIOS will not generate missing floppy error messages if Not Installed is selected M o n i t o r M o n i t o r The settings are Monochrome Color 40x25 Color 80x25 VGA PGA EGA or Not Installed w...

Page 43: ...at Boot System Boot Up Sequence System Boot Up CPU Speed Cache Memory Fast Gate A20 Option Password Checking Option Video ROM Shadow C000 16K and Video ROM Shadow C400 16K Help Screens Help Screens Advanced CMOS Setup has a series of help screens accessed by pressing F1 which display the settings for the selected Advanced CMOS Setup option and provide a brief description of the option Warning Mess...

Page 44: ... Setup Defaults F7 Power On Defaults Advanced CMOS Setup Options Advanced CMOS Setup Options T y p e m a t i c R a t e P r o g r a m m i n g T y p e m a t i c R a t e P r o g r a m m i n g T y p e m a t i c R a t e D e l a y T y p e m a t i c R a t e D e l a y T y p e m a t i c R a t e T y p e m a t i c R a t e Typematic Rate Programming enables the following two options Typematic Rate Delay selec...

Page 45: ...A t B o o t F l o p p y D r i v e S e e k A t B o o t When enabled a Seek command is performed on floppy drive A at system boot The settings are Enabled or Disabled S y s t e m B o o t U p S e q u e n c e S y s t e m B o o t U p S e q u e n c e This option sets the boot sequence The BIOS tries to boot from hard disk drive C or floppy drive A if C is not available The boot order can be reversed The...

Page 46: ...nge from addressing conventional memory to addressing memory addresses above 1 MB For example enabling this option allows Microsoft Windows and network operating systems execute faster P a s s w o r d C h e c k i n g O p t i o n P a s s w o r d C h e c k i n g O p t i o n This option allows the end user to configure the password option The settings are Setup or Always If Always is chosen a user pa...

Page 47: ...d every time the system boots or when the end user runs Setup Changing a Password Changing a Password The password check option is enabled in Advanced CMOS Setup Page 42 The password check function is enabled by choosing either Always or Setup The password 1 6 characters is stored in CMOS RAM To change a password select the Change Password option from the main Setup screen and press Enter The foll...

Page 48: ...o n t r o l P r o m p t P a s s w o r d O p t i o n s C o n t r o l P r o m p t When and if the prompt appears is dependent upon the options chosen in Advanced CMOS Setup If Always was set in Advanced CMOS Setup the prompt appears each time the system is powered on If Setup was set in Advanced CMOS Setup the prompt does not appear when the system is powered on but appears each time Setup is run U ...

Page 49: ...tted Page 47 Auto Interleave Determines the optimum interleave factor and then performs a low level format of the hard disk drive Page 49 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 52 These routines work on drives that use the MFM RLL ARLL or ESDI data r...

Page 50: ...optimum interleave factor 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...

Page 51: ...ng 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 H a r d D i s k F o r m a t S c r e e n H a r d D i s k F o r m a ...

Page 52: ...ermined 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 Enter A warning screen appea...

Page 53: ...optimum interleave factor through trial and error by measuring the transfer rate for four different interleave values To determine the best interleave factor the system formats a portion of the 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 mai...

Page 54: ... is N To mark additional bad tracks type Y and press Enter The following screen appears After selecting options from the Bad Tracks Edit Menu press Esc Type Y and press Enter to proceed with the Auto Interleave process A warning screen appears Press Enter to return to the main Hard Disk Utility screen To proceed type Y and press Enter ...

Page 55: ...est writes to all cylinders 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 The cursor is on Proceed The warning screen appears Press Enter to stop ...

Page 56: ...t Hard Disk Utility was selected FATAL ERROR 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 respon...

Page 57: ...ed Drive Not Ready An operation on the hard disk 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 va...

Page 58: ...x 8 128 KB Four 33 MHz 15 ns 32 KB x 4 U p g r a d e S R A M I n s t a l l a t i o n P r o c e d u r e U p g r a d e S R A M I n s t a l l a t i o n P r o c e d u r e Step Action 1 Remove the eight 8 KB x 8 SRAM chips See the graphic on the following page to pinpoint the location The socket designators are U3 U4 U9 U10 U11 U12 U15 and U16 2 Remove the shorting bridge on J100 3 Insert four 32 KB x ...

Page 59: ...Baby Screamer LC Motherboard User s Guide 55 SRAM Locations SRAM Locations ...

Page 60: ...on Fatal Error Messages 25 Password Check 42 Password Support 43 POST Power On Self Test 23 BIOS Setup 29 Board Layout 6 C Drive Error 25 Cache Memory 2 41 Upgrade 53 Cache Size Select 8 CMOS Display Type Mismatch 25 CMOS Shutdown Register Read Write Error 24 CMOS System Options Not Set 25 Configuring System 22 Connectors J11 Speaker Connector 19 J13 Turbo LED 19 J14 Keyboard Lock Connector 19 J6 ...

Page 61: ...Drive Types 37 Help Screens 39 I O Port 80h 23 Installation 5 Installation Steps 7 Installing Adapter Cards 20 21 Installing the Motherboard 14 Intel 80387 12 Interleave factor 49 J100 8 J13 19 J6 18 J8 19 Jumpers 8 Keyboard Lock Connector 19 Keyboard Speed Switching 29 Manufacturing Test Port 23 Mark Bad Tracks 49 Math Coprocessor 3 Install 12 Media Analysis Utility 45 50 Memory 2 Configuration 9...

Page 62: ... Seek At Boot 41 Key Usage 32 Keyboard 38 Monitor 38 Numeric Weitek Processor s 41 Options Main Menu 33 Password Check 42 ROM Shadow 42 Standard CMOS Setup 35 System Boot Up CPU Speed 41 System Boot Up Sequence 41 Typematic Rate 40 Typematic Rate and Delay 40 Typematic Rate Delay and Typematic Rate 40 Video or Adaptor ROM Shadow 42 warning screen 39 Shadowing 3 SIMM 10 Installing 11 Part numbers 1...

Page 63: ...ntinued Technical Support vi Testing System 22 Turbo LED 19 Turbo Switch 19 Typematic Rate 40 Typematic Rate Delay 40 Typematic Rate Programming 40 U22 12 Unpacking 5 VGA adapters 8 Video ROM Shadow C000 16K 42 Video ROM Shadow C400 16K 42 Weitek Installing 12 ...

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