Siemens D981 User manual

A26361-D981-Z120-9-7419 English - 1
Introduction
This Technical Manual applies for the System board D981.
iThis system board is available in different configuration levels. Depending
on the hardware configuration of your device, it may be that you cannot
find several options in your version of the system board, even though
they are described.
You may find further information in the description "BIOS Setup".
Further information to drivers is provided in the readme files on hard disk or on the
supplied drivers diskettes or on the "Drivers & Utility" CD.
Notational conventions
The meanings of the symbols and fonts used in this manual are as follows:
!Pay particular attention to texts marked with this symbol. Failure to
observe this warning endangers your life, destroys the system, or may
lead to loss of data.
iThis symbol is followed by supplementary information, remarks and tips.
²
Texts which follow this symbol describe activities that must be performed in the
order shown.
³
This symbol means that you must enter a blank space at this point.
´
´
This symbol means that you must press the Enter key.
Texts in this typeface are screen outputs from the PC.
Texts in this bold typeface are the entries you make via the keyboard.
Texts in italics indicate commands or menu item.
"Quotation marks" indicate names of chapters and terms that are being
emphasized.

Introduction Features
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Features
• System board in ATX format
• Intel Pentium II processor with MMX technology and 512 Kbyte second-level
cache in the processor cache module
• Processor cache module with SEC contact technology for Intel Slot 1
processor slot (SEC = Single Edge Contact)
• 16 to 512 Mbytes main memory (SDRAM)
• Error identification and error recognition via ECC
• 2 or 4 Mbit Flash-BIOS
• 1 AGP slot for AGP graphics controller (AGP = Accelerated Graphics Port)
• 3 PCI slots (all with busmaster capability)
• 2 ISA slots
• 1 ISA/PCI lot (shared)
• IDE hard disk controller connected to PCI bus for up to four IDE drives
(e.g. IDE hard disk drives, ATAPI CD ROM drive)
• Real-time clock/calendar with integrated battery backup
• Floppy disk controller (up to 2.88 Mbytes format)
• Parallel interface (ECP- and EPP-compatible)
• 2 serial ports (16C550 compatible with FIFO)
• PS/2 mouse port
• PS/2 keyboard port
• Security functions
• USB (Universal Serial Bus)
• Energy saving functions
• Connector for external loudspeaker
• Connector for chipcard reader

Features Introduction
A26361-D981-Z120-9-7419 English - 3
Optional Components
• Audio controller on ISA-BUS (PnP) Crystal CS 4235 Audio Codec or CS 4236
Audio Codec, 16 bit stereo; compatible with Soundblaster Pro™, Windows
Sound System and MPU 401; 3D audio support; internal FM synthesis
iThe audio output can be set in the BIOS Setup in the screen
A
dvanced/Peripheral Configuration, menu option Audio Output to Line Level
or Amplifier Level. Use Line Level if you connect headphones or an active
loudspeaker (with amplifier) to the audio output. Use Amplifier Level if you
use passive loudspeakers.
• Connector for CD-line in, Game/Midi, Voice-Modem, AUX IN
• Microphone connector (via supplementary board)
• Audio input (Line in)
• Loudspeaker connector (active/passive)
• Socket for wavetable chip
• SCSI controller Adaptec 7880
• SCSI bus (termination)
• Fan connector
• Connector for remote-on (fax/modem board)
• Connector for infrared connection
• Wakeup on LAN (WOL)
• Prepared for Siemens Nixdorf system monitoring

Introduction External ports
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External ports
1 2 3
45 6789
10
ISA 1
ISA 3
ISA 2
PCI 2
PCI 1
PCI 3 PCI 4
4 3 2 1
1 = PS/2 mouse port
2 = Parallel port
3 = MIDI/Game port
4 = PS/2 keyboard port
5 = USB ports
6 = Serial port 1
7 = Serial port 2
8 = Audio port (Line out)
9 = Audio port (Line in)
10 = Audio port (Microphone)
The connectors marked do not have to be present on the system board.

A26361-D981-Z120-9-7419 English - 5
Important notes
Store this manual close to the device. If you pass on the device to third parties,
you should also pass on this manual.
!Be sure to read this page carefully and note the information before you
open the PC.
Please note the information provided in the chapter "Safety" in the
Operating Manual of the PC.
Incorrect replacement of the lithium battery may lead to a risk of
explosion. It is therefore essential to observe the instructions in the
chapter „Add-on modules“ - „Replacing the lithium battery“.
The lithium battery must be replaced with an identical battery or a battery
type recommended by the manufacturer (CR2032).
Do not throw lithium batteries into the trashcan. It must be disposed of in
accordance with local regulations concerning special waste.
The shipped version of this board complies with the requirements
of the EEC directive 89/336/EEC with regard to "Electromagnetic
compatibility".
Compliance was tested in a typical PC configuration.
When installing the board, refer to the specific installation
information in the Operating Manual or Technical Manual of the
receiving device.
Connecting cable for peripherals must be adequately insulated to avoid
interference.
!The heat sink can become very hot during operation. Make sure you do
not touch modules when adding components to the system board. There
is a danger of burns!
iThe warranty expires if the device is damaged during the installation or
replacement of system expansions. Information on which system
expansions you can use is available from your sales office or the
customer service.

Important notes
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Boards with electrostatic sensitive devices (ESD) may be identified by labels.
When you handle boards fitted with ESDs, you must observe the following points
under all circumstances:
• You must always discharge yourself (e.g. by touching a grounded object)
before working.
• The equipment and tools you use must be free of static charges.
• Pull out the power plug before inserting or pulling out boards containing
ESDs.
• Always hold boards with ESDs by their edges.
• Never touch pins or conductors on boards fitted with ESDs.

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Settings
ISA 1
ISA 3
ISA 2
PCI 2
PCI 1
PCI 3
PCI 4
4 3 2 1
OFF/OPEN
ON
1 2 3 45 6 7 8
Switch 1 = must be set to off
Switch 2 = System BIOS recovery
Switch 3 = Write protection for floppy disks
Switch 4 = reserved
Switch 5 - 8 = clock frequency

Settings Recovering System BIOS - switch 2
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Recovering System BIOS - switch 2
Switch 2 enables recovery of the old system BIOS after an attempt to update has
failed. To restore the old system BIOS you need a Flash BIOS Diskette (call
customer service).
on The System BIOS executes from floppy drive A: and restores the
System BIOS on the system board.
off The System BIOS is started from the system board (default setting).
Write protection for floppy disks - switch 3
Switch 3 is used to define whether floppy disks can be written or deleted in the
floppy disk drive. To write and delete floppy disks, the write -protection in BIOS
setup must be disabled (in menu Security, the field Diskette Write must be set to
Enabled).
on The floppy disk drive is write-protected.
off Read, write and delete floppy disks is possible (default setting).
Clock speed - switch 5, 6, 7 and 8
!The switches may only be set as specified in the table below for the
particular processor used.
This system board you may use only with processors with a host bus
frequency of 66 MHz. Do not use processors with a host bus frequency of
100 MHz!
processor switch 5 switch 6 switch 7 switch 8
233/66 MHz on on off off
266/66 MHz on off on on
300/66 MHz on off on off
333/66 MHz on off off on
366/66 MHz on off off off
Reserved off x x x

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Add-on modules
ISA 1
ISA 3
ISA 2
PCI 2
PCI1
PCI 3
PCI 4
4 3 2 1
1
2
3
4
5
6
7
8
1 = Pentium II with heat sink
2 = 3 locations for main memory (DIMM)
3 = 1 optional locations for main memory
(DIMM)
4 = Lithium battery
5 = Socket for wavetable chip (optional)
6 = 3 ISA slots
7 = 4 PCI slots
8 = 1 AGP slot
The connectors marked do not have to be present on the system board.

Add-on modules Upgrading main memory
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Upgrading main memory
The system board incorporates three or four locations for installing memory
modules in DIMM format. The board supports a maximum of 512 Mbytes.SDRAM
memory modules can be used.
You may use memory modules of different size.
DIMM = Dual Inline Memory Module
SDRAM = Synchronous Dynamic Random Access Memory
!You may only use unbuffered 3.3V memory modules. Buffered memory
modules are not permitted.
SDRAM memory modules must have a cycle time of 15 ns or less or be
designed for a clock frequency of 66 MHz.
Installing memory modules
²
Flip the holders on each side of the relevant location outwards.
²
Insert the memory module into the location.
²
At the same time flip the lateral holders upwards until the memory module
snaps in place.
Removing a memory module
²
Flip the holders to the right and left of the location outwards.
²
Pull the memory module out of its location.

Installing/removing the Pentium II Add-on modules
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Installing/removing the Pentium II
!This system board you may use only with processors with a host bus
frequency of 66 MHz. Do not use processors with a host bus frequency of
100 MHz!
Installing the Pentium II
1
1
2
2
1
² Place the Pentium II in the holder (1).
² Push the Pentium II down in the holder and press it into the slot until the
clamps (2) to the left and right snap into place.
² Set the clock frequency of the new Pentium II using switches 5 to 8 of the
switch block.
² If the Pentium II has a fan, attach the associated cable to the connector for
the processor fan on the system board.
Removing the Pentium II
² If the Pentium II has a fan, pull out the associated cable.
² Press the clamps (2) on either side of the Pentium II inwards and pull the
Pentium II up and out.

Add-on modules Upgrading the wavetable module
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Upgrading the wavetable module
If the system board is prepared for upgrading with a single-chip wavetable module
(Crystal CS9236), the upgrade is carried out as shown in the figure.

Replacing the lithium battery Add-on modules
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Replacing the lithium battery
!Incorrect replacement of the lithium battery may lead to a risk of
explosion.
The lithium battery must be replaced with an identical battery or a battery
type recommended by the manufacturer (CR2032).
Do not throw lithium batteries into the trashcan. It must be disposed of in
accordance with local regulations concerning special waste.
Make sure that you insert the battery the right way round. The plus pole
must be on the top!
1
23
+
+++
² Lift the contact (1) a few millimeters and remove the battery from its
socket (2).
² Insert a new lithium battery of the same type in the socket (3).

Connectors and resources Overview of connections
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Connectors and resources
Overview of connections
ISA 1
ISA 3
ISA 2
PCI 2
PCI 1
PCI 3
PCI 4
4 3 2 1
6
19
11
20
78
910
12
13 14
15 16
17
18
12345
21
22 23
25
24
1 = Processor fan
2 = Power supply monitor
3 = Power supply
4 = Chipcard reader
5 = System fan
6 = SCSI bus (termination)
7 = Loudspeaker
8 = Floppy disk drive
9 = Control panel 1
10 = Control panel 1
11 = SCSI bus (controller)
12 = System Management / I2C-Bus
13 = SCSI LED input for SCSI adapter
14 = Wake-up on LAN
15 = ON/OFF switch
16 = Intrusion plug
17 = Infrared receiver (IrDA)
18 = IDE drives 1 and 2 (primary)
19 = IDE drives 3 and 4 (secondary)
20 = Remote on via fax/modem
21 = AUX-Line in (AUX input)
22 = CD-Line in (Audio input)
23 = Voice modem
24 = Device ID and temperature
25 = USB connection (internal)
The marked connectors are optional and may therefore not be included on your system
board.

Resource table Connectors and resources
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Resource table
assigned
IRQ possible IRQ Possible Address Possible DMA
Keyboard IRQ1
IrDA / WOL /
Serial port COM2 IRQ3 02F8, 03F8 02E8, 03E8
Serial interface COM1 /
Chip card reader IRQ4 03F8, 02F8 03E8, 02E8
Floppy disk drive controller IRQ6 DMA2
Parallel interface LPT1 IRQ7 IRQ5, IRQ7 0278, 0378 DMA1,
DMA3
RTC IRQ8
Audio controller
Joystick:
Base address:
MPU 401:
Adlib:
IRQ5, IRQ7,
IRQ9,
IRQ10 0200-0207
0220-022F
0240-024F
0260-026F
0280-028F
0300-0301
0330-0331
0338-038B
DMA1,
DMA3,
DMA5,
DMA7
USB controller IRQ11
Mouse controller IRQ12
Numeric processor IRQ13
IDE controller 1 IRQ14
IDE controller 2 IRQ15
„Assigned IRQ“ = Interrupts assigned as shipped
„Possible IRQ/Address/DMA“ = can be used for your particular application
iMPU 401: If you want to use external MIDI devices (for example a MIDI
keyboard), you must assign an interrupt for the MPU 401 (MIDI interface).
Detailed information is provided in the audio documentation on the driver
and utility CD.
Please note that a resource cannot be used by two applications at the
same time.

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SCSI Setup
SCSI is the abbreviation for Small Computer System Interface.
The onboard ultra-wide SCSI controller (host adapter) is the interface between the
internal bus (PCI bus) and devices with SCSI interfaces (SCSI devices).
The onboard ultra-wide SCSI controller is a PCI chip which uses Bus Master
technology. This allows your SCSI controller to independently manage data
transfer between your SCSI peripherals and the computer system memory, without
requiring the involvement of your computer system CPU (Central Processing Unit).
All the information you require to install the SCSI Utility Software (e. g. drivers for
MS-DOS, Windows 3.x) is contained in the User Guide for the SCSI Utility
Software EZ-SCSI.
Details of how you install and operate your SCSI device may be found in the
associated Manual.
Setting SCSI addresses (IDs)
Each device which is connected to the ultra-wide SCSI controller must be set to a
separate SCSI address (ID 0 through ID 15).
The ultra-wide SCSI controller has ID 7. ID 7 has the highest priority, SCSI-ID 0
has the lowest. The priority of the remaining IDs, in descending order, is 15 to 8.
²
Ensure that each SCSI device is assigned it's own address.
Details how you set the SCSI address of your SCSI devices may be found in the
associated manual.

Connecting SCSI devices SCSI Setup
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Connecting SCSI devices
SCSI devices and controllers are connected together via a common cable (SCSI
bus).
The termination (terminating resistors) must be enabled (or installed) on the last
device connected to the SCSI cable. The termination must be disabled (or
removed) from all other SCSI devices.
How you activate or deactivate the termination of the SCSI devices, see
description of your SCSI devices.
The system board provides the SCSI bus termination port to terminate the SCSI bus.
Instead of terminating the last drive on the SCSI line, you can also plug the free
end of the SCSI line into the SCSI bus termination port.
1
2
3
56 4
1 = SCSI bus port (controller)
2 = SCSI line
3 = SCSI bus port (termination)
4 = SCSI drive 1 (not terminated)
5 = SCSI drive 2 (not terminated)
6 = SCSI drive 3 (not terminated)
²
Be sure the ends of the SCSI bus are correctly terminated.
²
Connect the SCSI devices to the SCSI connector on the system board by
means of the SCSI cable.
iOnly single-ended SCSI devices may be linked to the ultra-wide SCSI
controller. Most SCSI devices meet this requirement. If you are in any
doubt, contact your sales office or customer service.
How you install internal devices in the system unit and connect them to the power
supply is described in the Operating Manual or Technical Manual for your device
in the chapter "System unit" (paragraph "Installing a disk drive").
Further information is provided in the descriptions of your SCSI devices.

SCSI Setup SCSI Setup
A26361-D981-Z120-9-7419 English - 19
The following hints are only for the connectors at the onboard ultra-wide SCSI
controller.
Connectors and cables
The connector of the ultra-wide SCSI controller is 68pin.
The connector of 8-bit SCSI devices is 50pin; the connector of 16-bit SCSI devices
is 68pin.
If you want to connect 8-bit SCSI devices to the ultra-wide SCSI controller you
need an adapter (from 68pin to 50pin).
If you want to operate an 8-bit SCSI device as the last device on a SCSI line you
need an adapter (from 68pin to 50pin) with high-byte termination.
If you have set the Support for Ultra SCSI Speed menu item to Enabled, you may only
connect 7 SCSI devices with a maximum cable length of 1.50 m.
iOnly use good quality SCSI lines, otherwise you may have transmission
problems.
SCSI Setup
The BIOS of the ultra-wide SCSI controller includes a menu-driven SCSI Setup. This
program allows you to change almost all of the option settings of the SCSI
controller and the connected SCSI devices.
When you boot the system a SCSI-BIOS message listing the SCSI devices
connected is displayed.
iIf an SCSI-BIOS error message appears or problems arise with SCSI
devices, please refer to the chapter entitled "Eliminating errors on the
SCSI controller" and "SCSI BIOS messages".
You may find further information in the documentation of your SCSI
device.
If you are unable to trace or rectify the error, please contact your dealer
or our service.

SCSI Setup SCSI Setup
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Starting the SCSI Setup
You must enable the ultra-wide SCSI controller in the system BIOS to be able to
call the SCSI Setup. Call the BIOS Setup and set the SCSI Controller field in the
Peripheral Configuration menu to enabled.
²
Start your PC and press key combination
>&WUO@
>&WUO@
and
>$@
>$@
, when the following
message appears:
Press <Ctrl> <A> for SCSI Select (TM) Utility!
The first menu of the SCSI setup, Configure/View Host Adapter Settings and SCSI Disk
Utilities is displayed.
Working with the keyboard
Use the following keys when running the program:
¤
¤
¥
¥
to make selections
Ï
Ï
to accept a selection
^(VF`
^(VF`
to call the previous menu and to terminate the SCSI setup.
^)`
^)`
to reset to the default settings
^)`
^)`
to toggle display between color and monochrome mode
Also note the status line at the bottom of the screen.
Terminating the SCSI setup
Depending on the current menu level, you can display the previous menu by
pressing the
>(6&@
>(6&@
key. If you have made changes in the current menu you will be
prompted to store them.
²
Keep pressing
>(6&@
>(6&@
until you arrive at the first menu (Configure/View Host
Adapter Settings).
²
Press the
>(6&@
>(6&@
key in the first menu and then follow the instructions on the
screen to terminate the SCSI Setup.