This Technical Manual applies for the system board D1081.
This 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
i
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" or "ServerStart" 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.
!
This symbol is followed by supplementary information, remarks and tips.
i
Texts which follow this symbol describe activities that must be performed in the order shown.
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
Texts in this bold typeface
Texts in italics
"Quotation marks" indicate names of chapters and terms that are being emphasized.
indicate commands or menu item.
are screen outputs from the PC.
are the entries you make via the keyboard.
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Page 2
Important notes
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.
!
You cannot access the components of the system board without first opening the device.
How to dismantle and reassemble the device is described in the Operating Manual
accompanying the device.
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
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 "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.
“ - „Replacing the
Connecting cables for peripherals must be adequately insulated to avoid interference.
Components can become very hot during operation. Make sure you do not touch
components when making extensions to the system board. There is a danger of burns!
!
The 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
i
from your sales office or the customer service.
2 - English
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Important notes
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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Features
Features
The components and connectors marked do not have to be present on the system board.
•
Micro ATX system board
•
Intel Pentium II processor with MMX technology for Intel 66 MHz slot 1 processor socket, firstlevel cache in processor module
or
•
Intel Celeron processor with MMX technology for Intel 66 MHz slot 1 processor socket,
first-level cache in processor module
•
16 to 256 Mbytes main memory (SDRAM memory modules)
•
Flash BIOS
•
2 PCI slots, 1 ISA/PCI slot (shared)
(all PCI slots have bus master capability)
•
2D graphics controller ATI VT4 at PCI bus
with 200 MHz RAMDAC frequency and 2 Mbyte SGRAM video memory
•
IDE hard disk controller connected to PCI bus for up to four IDE drives
(e.g. IDE hard disk drives, ATAPI CD ROM drives)
ultra DMA33 mode capable, supports PIO modes 0-4
•
Security functions: Floppy disk write-protection
•
Floppy disk drive controller (up to 2.88 Mbyte format and floppy tape drive)
•
Supports booting from a 120 Mbyte IDE floppy disk drive
•
Energy saving functions
•
Real-time clock/calendar with integrated battery backup
•
Parallel interface (ECP- and EPP-compatible)
•
1 external serial port (16C550 compatible with FIFO)
•
1 internal serial port
•
Monitor connector D-SUB (15-pin)
•
PS/2 mouse port
•
PS/2 keyboard port
•
1 USB port (USB = Universal Serial Bus)
4 - English
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Interfaces and connectors
Features
1 = Serial port 1
2 = PS/2 mouse port
3 = PS/2 keyboard port
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2
3
41
56
4 = Parallel interface
5 = USB port
6 = Video connector
English - 5
Page 6
Features
23
1
4
5
6
7
8
1 = Processor fan
2 = Power supply
3 = Serial port 2
4 = IDE drives 3 and 4 (secondary)
The components and connectors marked do not have to be present on the system board.
6 - English
5 = IDE drives 1 and 2 (primary)
6 = Floppy disk drive
7 = Connector for control panel and loudspeaker
8 = System fan
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Features
Possible screen resolution
Depending on the operating system used the screen resolutions in the following table refer to the
screen controller on the system board. If you are using an external screen controller, you will find
details of supported screen resolutions in the Operating Manual or Technical Manual supplied with
the controller.
To select the appropriate setting for your monitor, please use the ATI-VT4 VGA drivers supplied.
In Windows 95 you can select your monitor type (you should possibly use the standard), refresh rate
and the resolution in the
after these drivers have been installed.
Control Panel
Screen
resolution
640x48012032 to 64256
640x48012032 to 6465 K
640x48012032 to 6416,7 mio.
800x60012035 to 77256
800x60012035 to 7765 K
800x60012035 to 7716,7 mio.
1024x76812048 to 97256
1024x76812048 to 9765 K
1152x86411055 to 90256
1152x86411055 to 9065 K
Refresh rate
(Hz)
under
Display
Horizontal-
rate (kHz)
in the tabs
MGA settings
Max. number of
colors (2MB)
ATI Adjustments
or
1280x10248564 to 92256
1600x12007675 to 95256
64 K: high color (16 bit); 16 million: true color (24 bit)
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Features
Resource table
assigned
IRQ
KeyboardIRQ1
Serial interface COM13
Serial port COM 23
Floppy disk drive controllerIRQ62
Parallel interface LPT15, 70278, 0378, 03BC0, 1, 3
RTCIRQ8
USB controllerPnP
Mouse controllerIRQ12
Numeric processorIRQ13
IDE controller 1IRQ1401F0-01F7
IDE controller 2IRQ150170-0177
"assigned IRQ" = interrupts assigned as shipped
"Possible IRQ" = these interrupts can be used for your particular application
"Possible address" = this address can be used for your particular application
"Possible DMA" = these DMAs can be used for your particular application
possible
4
4
IRQ
Possible Address
(hex)
03F8, 02F8
03E8, 02E8
02E8, 02F8
03E8, 03F8
Possible
PCI bus interrupts
The following table shows which PCI bus interrupts on the system board are assigned.
PCI bus slotPCI bus interruptComponent on system board:
1A
2B
3C
- -DUSB controller
- -DGraphics controller
DMA
8 - English
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Jumper settings
Jumper settings
F
C
C
C
C
W
F
F
F
F
P
3
2
1
4
RCV
SKP
Jumper SKP = May not be inserted
Jumper RCV = System BIOS recovery
Jumper FWP = Write protection for floppy disks
Jumpers CF3, CF2, CF1, CF4 = Clock speed
Recovering System BIOS - jumper RCV
The jumper RCV 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 (please call our customer service).
insertedThe System BIOS executes from floppy drive A: and the inserted "Flash-BIOS-
not insertedNormal operation (default setting).
A26361-D1081-Z120-3-7419
Diskette" restores the System BIOS on the system board.
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Jumper settings
Write protection for floppy disk drive - jumper FWP
The jumper FWP 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 for diskettes in
disabled (in menu Security, the field Diskette Write must be set to
inserted
not inserted
The floppy disk drive is write-protected.
Read, write and delete floppy disks is possible (default setting).
Enabled
BIOS Setup
).
must be
Clock frequency - jumpers CF1 to CF4
The switches may only be set as specified in the tables below for the particular
Pentium II or Celeron used.
!
This system board you may use only with Pentium II or Celeron processors with a host
bus frequency of 66 MHz.
For all steps described in this chapter pull the power plug out of the power outlet!
!
Add-on modules
1
6
5
2
3
2
1
4
3
1 = Slot for processor with heat sink
2 = Lithium battery
3 = Locations bank 2 for main memory
All PCI slots have bus master capability.
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A26361-D1081-Z120-3-7419
4 = Locations bank 1 for main memory
5 = ISA slot
6 = PCI slots 1, 2, 3
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Add-on modules
Installing/removing the processor
Installing the Pentium II
2
2
1
1
1
Place the Pentium II in the holder (1).
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.
Set the clock frequency of the new Pentium II using jumpers CF1 to CF4 of the jumper block.
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
If the Pentium II is equipped with a fan, then disconnect the plug connector of the related cable.
Press the clamps (2) on either side of the Pentium II inwards and pull the Pentium II up and
out.
12 - English
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Add-on modules
Installing the Celeron
Place the Celeron in the holder.
Push the Celeron down in the holder and press it into the slot until it snaps into place.
Set the clock frequency of the new processor using jumpers CF1 to CF4 of the jumper block.
If the Celeron has a fan, attach the associated cable to the connector for the processor fan on
the system board.
Removing the Celeron
2
1
1
If the Celeron is equipped with a fan, then disconnect the plug connector of the related cable.
Press the two side holders somewhat outward while pulling the Celeron upward out of the
socket.
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Add-on modules
Upgrading main memory
Two locations (bank 1 and bank 2) are available on the system board for main memory. These slots
are suitable for 16, 32, 64 and 128 Mbyte SDRAM memory modules of the DIMM format.
The maximum memory configuration is 256 Mbyte, whereby memory modules with different memory
capacities can be combined.
Installing/removing the processor............................................................................................ 12
Upgrading main memory......................................................................................................... 14
Replacing the lithium battery................................................................................................... 15
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A26361-D1081-Z120-3-7419
System board D1081
Technical Manual
October 1998 edition
Intel, Pentium and Celeron are registered trademarks and MMX and OverDrive are trademarks of
Intel Corporation, USA.
Microsoft, MS, MS-DOS and Windows are registered trademarks of Microsoft Corporation.
PS/2 and OS/2 Warp are registered trademarks of International Business Machines, Inc.
ATI and ATI VT4 are trademarks of ATI Technologies Inc.
All other trademarks referenced are trademarks or registered trademarks of their respective owners,
whose protected rights are acknowledged.
Copyright Siemens AG 1998.
All rights, including rights of translation, reproduction by printing, copying or similar methods, even of
parts are reserved.
Offenders will be liable for damages.
All rights, including rights created by patent grant or registration of a utility model or design, are
reserved. Delivery subject to availability.
Right of technical modification reserved.
A26361-D1081-Z120-3-7419
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