Olivetti M4-75, M4-90, M4-100, M4-133 Service manual

M4-75/90/100/ 133 (S) AND PCS VERS I ONS

This section de scr ib es t he fo llo win g personal computers:

PERSONAL COMPUTER PROCESSOR SYS. CLOCK BOX

M4-75 Pentium @ 75 MHz 50 MHz TIN
M4-75 S Pentium @ 75 MHz 50 MHz SLIM TIN
M4-90 Pentium @ 90 MHz 60 MHz TIN
M4-90 S Pentium @ 90 MHz 60 MHz SLIM TIN
M4-100 Pentium @ 100 MHz 66 MHz TIN
M4-100 S Pentium @ 100 MHz 66 MHz SLIM TIN
M4-133 Pentium @ 133 MHz 66 MHz TIN
M4-133 S Pentium @ 133 MHz 66 MHz SLIM TIN
PCS P/75 E/En Pentium @ 75 MHz 50 MHz TIN
PCS P/90 E/En Pentium @ 90 MHz 60 MHz TIN
PCS P/100 En Pentium @ 100 MHz 66 MHz TIN
PCS P/133 En Pentium @ 133 MHz 66 MHz TIN
PCS P/75 n Pentium @ 75 MHz 50 MHz SLIM TIN
PCS P/90 n Pentium @ 90 MHz 60 MHz SLIM TIN
PCS P/100 n Pentium @ 100 MHz 66 MHz SLIM TIN
PCS P/133 n Pentium @ 133 MHz 66 MHz SLIM TIN
PCS P/75 E/En Educato r Pentium @ 75 MHz 50 MHz TIN

12

CHARACTERISTICS

TIN BOX

Architect ure ISA/PCI
Memory Min. 8 MB, max. 128 MB. On the

motherboar d there are four sockets
organized in two banks for the installat ion
of the following SIMMs:

EXM 40-004 One 1 MBx36 (4 MB) SIMM
EXM 40-008 One 2 MBx36 (8 MB) SIMM
EXM 28-016 One 4 MBx36 (16 MB) SIMM
EXM 40-032 One 8 MBx36 (32 MB) SIMM

- Two KITS are always needed

- Bank 0 must always be filled
Memory access ra te 70 ns
Memory cache 1

M4-75/90/100/ 133 (S) AND PCS VERSIONS 12-1

st

level: integrated in t he pr oces sor

nd

2

level: 256 KB

SLIM TIN BOX

FQC1A

GMF7A

Floppy Disk First floppy di sk drive:

Panasonic JU 257 A - 1.4 4 MB
Sony MP-F17 W 1.44 MB
Sony MPF420- 1 1.44 MB
Mitsubishi MF 355 1.44 MB
EPSON SMD 1040-418 1.44 MB
Mitsumi D359T3 1 .4 4 MB
TEAC FD235HF 1.44 MB
Y-E DATA YD-702B/D 1.44 MB

Second flo ppy dis k drive (opt io nal ):

Toshiba ND08 DE 1.2 MB
Panasonic JU 475-3/4/5 1.2 MB

Hard Disk CONNER CFA 425 A 425 MB

CONNER CFA 850 A 850 MB
CONNER CFA 1275 A 1.2 GB

Streaming Tap e Floppy disk interf ace:

IRWIN 31250A 80-120 MB
CONNER CTM420 250-420 MB
SCSI interface (ASC- 2/ 2F co ntroller ) :
Wangtek 5150E S 150 MB
Wangtek 5525ES/ES- A C A 320 MB
Wangtek 51000H T 1-1.2 GB
DAT 1300 1 .3-2 GB

CD-ROM CR-503-B (SCSI ASC-2F ) 550 MB

CDU 76 E (IDE) 656 MB

Expansion slot s on
the Riser bus

TIN BOX:

1 PCI Full Size
1 shared PCI/ISA Half size
3 ISA Full Size

SLIM TIM BO X:

1 PCI Full Size
1 shared PCI/ISA Half Size
1 ISA Full Size

Video control ler PCI Trident TGUI9 660XG i/ TG UI 968 0XG i

integrated on the moth e rbo ard and with
1 MB or 2 MB of vid eo m em ory and t he
DPMS, DDC features

Audio subsystem Mozart OTI 605 (MI2074) standar d on

PCS P/75 E/En Educator only

HDU controller Component UM 8673 : 2 Fast IDE Local

Bus interfaces , each of which capable of
connecting two hard disk s

FDU/para llel/seri al
contro ller

Component SM C 37C665 : 2 floppy disks,

2 serial ports, 1 parallel por t
Mouse PS/2 standard interface
Keyboard 101/102-key compact keyboard:

ANK 27-101/N, ANK 27-102/ N

101/102-key super compact keyboard:

ANK 28-101/N, ANK 28-102/ N

MOTHERBOARD
BA2199/2233/2259

Monoprocessor with
integrated video
controller.

BA2260

166 MHz
monoprocessor with
integrated video
controller.

BIOS

The ROM BIOS is a
FLASH EPROM.
The BIOS cod e can be
updated from diskette.
Supported features:
Plug&Play, DMI, APM.

Last level:
Rev. 1.13

RISER BUS
EXPANSION BOARD

TIN BOX: IN2048
SLIM TIN BOX: IN2037

POWER SUPPLY
M4-75/90/100/133:

SP 200 BBN
(ASTEC SA201-3451­200, ELIA EPA200-BB,
MINEBA AF00014 5)
180 W / 120 - 240 V

M4-75/90/ 10 0 /133 S:

SP 100 SBN
(ASTEC SA131-3400-

200)
100 W / 120 - 240 V

PCS P/xx E/En:

SP 200 BC
(EVER POWER SB
200 PN)
180 W / 120 - 240 V

PCS P/xx n:

SP 100 SCN
(DVE DSP-0584-110 A)
100 W / 120 - 240 V

12-2 M4-75/90/100/13 3 (S) AND PCS VERSIO N S

MOTHERBOARD

NAME LEVEL NOTES
BA2199 Lev. Nasc

Monoprocess or TRI GEM mo therb oar d w ith integr at ed vide o cont ro ller
Lev. 01
Lev. 02
Lev. 03

Lev. 04

Lev. 05
Lev. 06

Lev. 07

BA2233 Lev. Nasc

Lev. 01

Lev. 02

Corrected aud io circuit ry managem e n t

Replaced the 1 5 KOhm resist or s in posit ion R467 wit h 6 KOhm resistor s

Replaced the 15 KOh m resist or s in posit ions R500 and R501 with 2.2

KOhm resistors

Replaced the 85 C5501 chipset in posit ion U1 with the new SIS5 501 mask

1D revision

Replaced t he 1 µF capacitor in position C13 with a 100 µF capacitor

To solve the problem with bright nes s unde r Win dows 3.xx ,

a new printed cir cuit is introduce d which m odif ies th e TGUI 9660 video

controller IREF circuit check in g the volt age wit h a 12 V zener diode

Replaced the 20 0 KO hm resistor in posit ion R54 with a 470 KO hm res isto r,

and inserted th ree 1 KOhm resist or s in posit ion P1 (side B), 2 SMD on pins

143 and 145 and 1 axia l on pins 62 and 107

Monoprocess or mot her boa rd with inte gra te d video co ntroller , simi la r to

BA2199

Inserted thr ee 1 KOhm res isto rs in position P1 ( side B), 2 SM D on pins 143

and 145 and 1 axial on pins 62 and 107

New TGUI9680 XG i vid eo con troller r eplacing the TG UI9 660 XG i

12

Lev. 03

BA2259 Lev. Nasc

Lev. 01

BA2260 Lev. Nasc

Lev. 01
Lev. 02

New video connector

Monoprocess or mot her boa rd with inte gra te d video co ntroller , simi la r to

BA2199

Replaced co mponen t SIS_85 C5501 /1 D with com po nent SIS_85C55 01/ 1E1

133 MHz monopr oces sor mothe rbo ard with int egr ated video cont ro ller

New TGUI9680 XG i vid eo con troller r eplacing the TG UI9 660 XG i

New video control ler

M4-75/90/100/ 133 (S) AND PCS VERSIONS 12-3

ONBOARD CONTROLLER

MOTHERBOARD INTEGRATED CONTROL LERS
BA2199

BA2233
BA2259

Processor Pentium @ 75/90/100 MHz
85C551 This chip set component integrates the following functions:

- - PCI bus control

- Second level cache memo ry control

- Memory control.

85C502 This chip set component integrates the following functions:

- Local bus extension (BUS PCI ) control.

85C503 This chip set component integrates the following functions:

- Interface bet ween the PCI local bus a n d ISA AT bu s

- Controls the I/O peripherals.

8742 Keyboard con troller an d mo use int er face
Trident TG UI9660XGi/TGUI9680XGi

Video controller

Flash EEPROM The system BIOS is containe d in a 128 KB 28F001BX

Flash EEPROM

SMC 37C665

Super I/O controller integrating the following functions:

- Floppy disk control

- Interface for two serial ports

- Parallel port interf ace.

UM8673 Provides an IDE PCI hard disk int erfac e that allows the conne ctio n

of fast local bus ha rd disks.

BA2260 Similar to BA2199/2233/ 225 9 but w ith a Pentium @ 133 M Hz proces sor .

RISER BUS EXPANSION BOARD

NAME LEVEL NOTES

IN2048 Lev. Nasc Allows the installation of optiona l AT or PCI board s on TIN BOX

systems.

IN2037 Lev. Nasc Allows the installation of optiona l AT or PCI board s on SLIM TIN

BOX systems.

AUDIO BOAR D

NAME L EVEL NOTES

MI2074 Lev. Nasc Mozart audio boar d (OTI605).

POWER SUPPLY

NAME LEVEL PERSONAL COMPUT E R NOTES

SP 200 BBN

Lev. Nasc M4-75/90/ 100/ 13 3 180 W power supply.
(ASTEC SA201-3451- 200,
ELIA EPA200-BB,
MINEBA AF000145)

SP 100 SBN

Lev. Nasc M4-75/90/ 100/ 13 3 S 100 W power supply.
(ASTEC SA131-3400- 200)

SP 200 BC

Lev. Nasc PCS P/xx E/En 180 W power supply.
(EVER POWER SB 200 PN)

SP 100 SCN

Lev. Nasc PCS P/xx n 100 W power supply.
(DVE DSP-0584-110 A)

12-4 M4-75/90/100/13 3 (S) AND PCS VERSIO N S

BIOS

LEVEL NOTES

Rev. 1.12

- New Trident X51V-06 video BIOS

- Updated Super I/O chipset

- Par al lel port DMA channe l in Enhanced Mod e option is adde d

Rev. 1.13

- Solves some of the proble ms with t he previous versio n

- New Tr id ent X51V- 07 video BIO S

- Releas e number included in the code for factory purpos es.

SOFTWARE DRIVERS

DRIVER LEVEL NOTES

EVD for Trident
TGUI 9660 XGi

Ver. 1.06

Video drivers for: Windows 3.1x , Windows NT 3.x,
OS/2 2.1x & 3.0 W arp , Wor dPer fe ct 5.1-6. 0,
Ventura 2.x- 3.x, Lot us 2.1-2.2, Word 5.0-5.5,
AutoCAD 9-10-11-12, AutoSHADE 1. 1-2. 0 & 3D Studio,
GEM 3.xx

EVD for Trident
TGUI 9660/ 9680 XGi

Ver. 2.02

- Solves the prob le m with the ver tica l refres h rate wit h
800x600 resolution s on the DSM28-039 PS and
DSM28-142PS monit or s

- Upda tes the EVD.HLP file

Ver. 2.07- 1

- Addit ion of the TMO NIT OR.X2 M fi le which clear s the
1280x1024x1 6/256 co lo rs resolut ion int er laced by the
DSM 28-144M S, DSM 27-615, DSM 40-151,
DSM 50-144 monitors

- Addition of the following monitor s: DSM 50 -148,
DSM 50-149, DSM 50-151, DSM 51- 151

- Addit ion of the TMO NIT OR.X1 M fi le for EDO DRAM
memory (1 MB)

- Two ne w driver s, one f or OS/2 an d one for Windows,
and modification of the W indows NT dr iver vers ion

- I ntrod uct ion of the Wind ows 95 en viron me nt

- Replac ement of the TMONITO R. SYS file which, in the
case of the DCC monitor , does not modif y th e config. sys
file

- New SMONITO R.EXE ve rsion

- Reint ro duct ion of Aut oca d 2.10T t o solve som e
problems

Mozart OTI 605 audio
drivers

Ver. 4.0 Audio drivers for: Win dows 3.1x , Windows NT 3.1/3 .5,

Windows 95, OS/2 2.11 & 3.0 Warp, Win/OS2.

12

M4-75/90/100/ 133 (S) AND PCS VERSIONS 12-5

SOFTWARE COMPAT IBILI TY

OPERATING SYSTEMS NETWORKING & LAN PRO DUCTS

DR-DOS, version 7.00
IBM PC-DOS, version 6.1
IBM OS/2, version s 2. 11 *
IBM OS/2 War p, version 3.0
MS-DOS, ve rsion s 5.0* / 6.00 / 6.22
SCO UNIX O.D. T. , release 3.0
SOLARIS, version 2.4

WINDOWS

MS-WINDOWS, version 3.1
MS-WINDOW S for WO RKG RO UPS, ve r. 3.11
WINDOW S NT, version 3.5

WINDOWS APPLICATIONS

ADOBE PHOTOSHO P, ver sion 3.0
ADOBE PREMIERE f or Windows, version 1. 1
ALDUS PAGEMAKER, version 5.0
AMI PRO for Windows, version 3. 0
COREL DRAW for Windows , version 5.0
COREL Ventura Publisher for Windows, ver. 4.2
FRAME MAKER 4 for Windows, version 4.02 P2b
LOTUS 1-2-3 for Windows, version 4.01
LOTUS Freelance Graph ics for Windows, ver. 2.01
MS-EXCEL, version 5.0
MS-WORD for Windows, version 6.0
MS-WORKS for Windows, version 2.0
MS-POWERPOINT, version 3. 0
PHOTOMAG I C, version 1.0
WINDOW S DRAW, version 3.00
Xerox Ventura Publisher for Windows, ver. 4.1.1

WORD PROCESSOR S

AMI PRO for O S/2, version 3.0A
MS-WORD for DOS, version 6. 0
MS-WORD for OS/2, version 5. 5
WORD PERFECT, version 6.0a
WORD PERFECT for OS/2, version 6.0
WORDSTAR Profession al, ve rsion 7.0

10NET PLUS, version 5.0
BANYAN VINES, version 5.53
IBM PC LAN PROGRAM, ver sion 1.30
IBM PC LAN SUPPORT Program, ver. 1.2
IBM OS/2 LAN SERVER, version 3.0
INTEL LANDESK MANAGER, version 1. 5
INTEL NET SATSFAXTION, version 2.5
LOTUS CC: FAX (DOS), version 1.20
LOTUS CC: MAIL (DOS), version 4.02
LOTUS CC: MAIL ROUTER (DOS), ver. 4.0
LOTUS CC: MAIL ADE (DOS), version 1.0
LOTUS CC: MAIL Import/Export (DOS) ,

ver. 3.32

MS-MAIL, version 3.2
Microsoft LAN M ANAGER for OS/2, ve r. 2. 2
NOVELL Netware 386, ver sions 3.12 / 4.02 *
PERSONAL NETWARE, version 1.0
SUNSOFT PC-NFS, version 5.1
Microsoft Win dows NT Ser ver , ver. 3. 5
VOCALCHAT LAN, version 2.0
VOCALCHAT GTI, version 2.2

GRAPHICS APPLICATION S

AUTOCAD, version 12
AUTOCAD for Windows, version 12
CHARISMA for Windows, version 4.0
Harward Graphics for Windows, ver. 1.02
LOTUS Freelance Graphics for OS/2, ver. 2.0
LOTUS Freelance PLUS, version 4.0
MICROGRAFX DESIGNER, version 4.01
PC PAINTBRUSH 5+, version 1.0

DESKTOP PUBLISHERS

ALDUS PAGEMAKER for OS/2, ver. 3.01
GEM/3 DESKTOP PUBLISHER, ver. 2.0
XEROX Ventura Publisher for DOS/GEM

edition, version 3.0

* Compatibility depends on whether spe cific op erations have been carrie d out, as indicat ed in th e

related "Compatibilit y Guide".

12-6 M4-75/90/100/13 3 (S) AND PCS VERSIO N S

HARDWARE COMPATIBIL ITY

MODEMS MOUSE

AT&T Modem/Fax Dataport 14,4 W/Fax
HAYES SMART MODEM 2400 B
INTEL SatisFAXtion Mode m/40 0
DIGICOM MODEM FAX Mod. SNM41PC

IBM PS/2 MOUSE
LOGITECH RADIO M OUSE
MS BALL POINT MOUSE
MS SERIAL MOUSE (PS/2)

HAYES OPTIMA FAX/M ODEM 288 (ext er nal)

INTELLIGENT MULTIPORT CARDS NETWORKING & LAN (ISA) PRODUCTS

CHASE AT 16+ Serial I/O Control ler
CHASE AT IO LITE *
COMPUTONE 16 Multiport Serial I/O Controller
CHASE AT I/O PRO
DIGIBOARD MULTIPORT PC/8
SPECIALIX SI/8

GRAPHICS PRODUCTS

Number Nine GXE Grap hics Acce lerator (ISA) *
MATROX MGA IMPRESSION 3Z/ A (ISA)
THUNDER/24 for Windows (ISA) *
ATI Mach 64 V Graphics Acceler ator (PCI)
MATROX MGA 2 + PCI (PCI )
MATROX MGA IMPRESSIO N PLUS (PCI )
NUMBER NINE GXE64 Graphic s Accel. (PCI )
ORCHID KELVIN 64 (PCI)

DISPLAY UNITS

NEC MULTISYNC 4FG / 5FG / 6FG
SONY Multiscan CPD 1430 / 1730
SONY Multiscan G DM 2036

ACCTON ETHERCOAX 16 Adapter
ACCTON ETHERPOCKET EN211 Adapter *
3COM ETHERLI NK I I Adapter (3C503)
3COM ETHERLINK 16 Adapter (3C507)
3COM ETHERLINK III Adapter (3C509) Combo
3COM TOKENLINK III Adapter (3C619) *
3COM TOKENLINK PLUS Adapter (3C603)
DEC Etherworks III Thinwire Adapte r DE203
D-LINK TOKEN RING DT-220 Adapter
IBM TOKEN RING 16/4 Adapt er *
IBM TOKEN RING PC Adapter II
INTEL Ethere xpr ess 16 Eth e rne t Ada pt er
INTEL Ethere xpr ess 16 Fla sh C Eth ern et Ad apt .
INTEL TOKEN EXPRESS ISA/16S Ada pt er
MADGE 16/4 AT RING NO DE Adapt er
NOVELL NE2000 PLUS Ethern et Combo Adapt .
OLICOM Ether net OC212 1/2122 /2 123 Ada pt er
OLICOM TOKEN RING OC3121 Adapt er
IBM ETHERNET Adapter (PnP) CX
INTEL ETHEREXPRESS 16 (ISA PnP)

MULTIMEDI A DEVICES (DVO /DVI ) NETWORKING & LAN (PCI) PRODUCTS

ACTIONMEDIA II CAPTURE MODULE
FAST SCREEN MACHINE (IS) Mod 1
INTEL SMART VIDEO RECORDER
LIFE VIEW VIDEO (Vide o II Captur e Boar d)
PRO MOVIE STUDI O
REEL MAGIC SONY
SCREEN MACHINE (ISA) Mod 2
VIDEO BLASTER *
VIDEOLOG IC DVA 4000/ I SA
WIN/TV

DEC TULIP PCI Et hernet 21040-AA Adapter
Z’NYX 32 Bit LAN Ethernet ZX312 Combo Ad.

MPC BOARDS

LOGITECH AUDIOMA N
ORCHID SOUND WAVE 32
PRO AUDIO SPECTRUM 16 SDLC
PRO AUDIO SPECTRUM 16 BASIC
PRO AUDIO FUSION DO UBLE CD 16 Kit
SOUND BLASTER PRO 2
SOUND BLASTER 16 APS
SOUND BLASTER 16 SCSI 2

12

* Compatibility depends on whether specific operations have be en car ried out, as indic at ed in the

related "Compatibility Guide".

M4-75/90/100/ 133 (S) AND PCS VERSIONS 12-7

COMPONENTS AND JUMPERS ON MOTHERBO ARD BA2199/22 33/ 225 9/ 2260

FQG1A

FLOPPY
DISK
CONN.

VIDEO
CONNECTOR

PARALLEL
CONNECTOR

ST

SERIAL PORT

1
CONNECTOR

2ND SERIAL
PORT
CONNECTOR

JP12

VAFC
CONNECTOR

FEATURE
CONNECTOR

TGUI9660/
TGUI9680
VIDEO
CONTROL.

JP18

SUPER I/O
CONTROLL ER

JP19

JP17

AUDIO
BOARD
SLOT

JP15

JP13
JP14

JP16

VRAM

85C503
(SIO)

RISER BUS
SLOT

JP11

JP10

JP9

VRAM
EXPANSION

JP8

SOCKETS

85C502
(DATA
PATH)

SYSTEM
MEMORY

85C551(PCI
BUS,
CACHE
AND DRAM
CONTROL.)

IDE LOCAL
BUS HDU
CONTRO L.

(4 SIMM
SOCKETS )

PENTIUM
OVERDRIVE
READY
SOCKET 5

SECOND
LEVEL
CACHE
SRAM
CHIP

MOUSE
CONNECTOR

KEYBOARD
CONNECTOR

KEYBOARD
AND
MOUSE
CONTROL.

POWER SUPPLY
CONNECTOR

PRIMARY
FAST IDE PCI
HARD DISK
CONNECTOR

SECONDARY
FAST IDE PCI
HARD DISK
CONNECTOR

JP3, JP2, JP1

FAN
POWER LED
CONNECTOR

SPEAKER

CONNECTOR

CONNECTOR

HDU
CONNECTOR

12-8 M4-75/90/100/13 3 (S) AND PCS VERSIO N S

MOTHERBOARD JUMPERS
Jumper JP1 - Pipeline Enable/Disable

Position 1-2 Enables pipelining
Position 2-3 Disables pipelining (Default)

Jumper s JP2 and JP3 - CPU Internal Cach e Mode of Opera tio n

JP2: Position 1-2 WRITE-BACK cache (Default)
JP2: Position 2-3 WRITE-THROUGH cache
JP3: Position 1-2 WRITE-THROUGH cache
JP3: Position 2-3 WRITE-BACK cache (Default)

Jumper JP8 - Second Level Cache Si ze

Position 1-2 256 KB cache (Default)
Position 2-3 512 KB cache

Jumper s JP9 and JP10 - System Cl ock Sel ec tion

JP9: Position 1-2 75 MHz Pentium with a 50 MHz system clock
JP10: Posit io n 1-2

JP9: Position 2-3 90 MHz Pentium with a 60 MHz system clock
JP10: Posit io n 1-2

JP9: Position 2-3 100/133 MHz Pentium with a 66 MHz system clock
JP10: Posit io n 2-3

Jumper JP11 - CMOS RAM Ca n cel l ation

IN Clears the CMOS RAM
OUT Normal operation

Jumper JP12 - Passw or d Enabl e/Di sable

Position 1-2 Enables the pas swor d (Def au lt)
Position 2-3 Disables the password

Jumper JP14 - Flop py Di sk W ri te Prot ect io n

IN Floppy disk write protected
OUT Floppy disk not write protected (Default)

Jumper s JP15 an d JP16 - Paral lel Port DMA Cha nnel Sel ect io n

JP15: Position 1-2 DMA channel DRQ1 used, DMA acknowledge channel DACK1 used
JP16: Position 1-2

12

JP15: Position 2-3 DMA channel DRQ3 used, DMA acknowledge channel DACK3 used
JP16: Position 2-3

Jumper JP17 - Video Memor y Dat a Bus: Opera tion wi th a 1 or 2 MB VRAM

IN 64-bit operat ion - 2 MB VRAM (Def ault for the M4 -90 /1 00/ 133 ,

M4-90/100 /1 33 S, PCS P/90 E/ En/ n, PCS P100/133 En/n)

OUT 32-bit operation - 1 MB VRAM (Defa ult for the M4-75, M4-7 5 S,

PCS P/75 E/En/ n, PCS P/75 E/ En Educ at or)

Jumper JP18 - Video Control l er Int erlac ed/ Non- I nte rlace d Mo de of Operation

IN Selects the interlaced mode
OUT Selects the non-interlace d mode (De fa ult)

Jumpers JP19 an d JP20 - Onboar d Vi deo Con tr olle r Enable /Disa ble

Position 1-2 Disables the onboard video controller
Position 2-3 Enables the onboar d video co ntroller (Default )

M4-75/90/100/ 133 (S) AND PCS VERSIONS 12-9

RISER BUS EXPANSION BOARD

EUQ7A

EUU9A

IN2048: FOR TIN BOXES

3 SLOTS FOR FULL SI ZE A T
BOARDS

SHARED SLOTS FOR AN AT
FULL SIZE OR PCI BOARD

PCI BOARD SLOT

IN2037: FOR SLIM TIN BOXES

AT FULL SIZE BOARD SLOT

PCI HALF SIZE BOARD SLO T

SHARED SLOTS FOR AN AT
FULL SIZE OR PCI BOARD

MOTHERBOARD CONNECTO R

MOTHERBOARD CONNECTO R

12-10 M4-75/90/100/ 13 3 (S) AND PCS VERSION S

INTERRUPT LEVELS

INTERRUPT FUNCTION

IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15

Timer
Keyboard
Reserved
Serial port 2
Serial port 1
Free
Floppy disk controller
Parallel port
Clock - calendar
Free
Free
Video controller
Mouse (PS/2- com pat ible)
Integrat ed mat h pr oces sor
Primary interfac e for hard disks on the PCI local bus
Secondary interfa ce for hard disks on the PCI local bus or for CD-ROM s (if
there is no device conn ect ed to the sec ondary IDE interface, IRQ15 r esult s as
being free)

DMA CHANNEL

DMA CHANNEL DEVI CE O R FUNCTION

0
1
2
3
4
5
6
7

Reserved
Free
Floppy disk transfers
Free
Reserved
Free
Free
Free

12

I/O ADDRESSES

I/O PORT (h) DEVICE OR FUNCTION

000 - 1FF
200 - 2F7
2F8 - 2FF
300 - 31F
320 - 327
328 - 36F
370 - 377
378 - 37F
380 - 3AF
3B0 - 3EF
3F0 - 3F7
3F8 - 3FF
400 - BFF
C00 - CF7
CF8 - CFF
D00 - FFF

Reserved for the int er rup t and DMA co ntroller s, keybo ard , system timer
Free
COM2
Free
IDE contr ol ler (h ard disk)
Free
FDU controller
LPT1
Free
Video controller
FDU controller
COM1
Free
Free
PCI
Free

M4-75/90/100/ 133 (S) AND PCS VERSIONS 12-11

SYSTEM MEMORY MAP

640 KB

64 KB

32 KB

32 KB

32 KB

96 KB

46 KB

16 KB

000 KB

639 KB
640 KB

704 KB
705 KB

736 KB
737 KB

768 KB
769 KB

800 KB
801 KB

896 KB
897 KB

944 KB
945 KB

959 KB
960 KB

USER DATA AREA

VGA VIDEO MEMORY

MONO VIDEO MEMORY

RANGE

CGA MEMORY RANGE

VGA BIOS CODE

MEMORY RANGE FOR

THE OPTIONAL

BOARDS TO BE

INSTALLED ON THE

BUS

ADDRESSES FOR DOS

MEMORY MANAGERS

SYSTEM BIOS

00000 h

9FFFF h

A0000 h

C0000 h

C8000 h

DFFFF h

E0000 h

EC000 h

F0000 h

64 KB

1024 KB

SYSTEM BIOS

FFFFF h

■

12-12 M4-75/90/100/ 13 3 (S) AND PCS VERSION S