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FT1200 'Crinkle' DK440LX Motherboard Layout


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Front & Rear Views


1 Reserved for future options 7 CD activity indicator
2 Hard disk activity indicator 8 Lockable front door
3 Power mode indicator 9 CD emergency eject hole
4 Power button 10 CD eject button
5 CD-ROM drive disc drawer 11 Diskette drive
6 CD headphone jack & volume control 12 Front lifting point


Rear View


Microphone input socket


Voltage selector switch


Line audio, (left) in (right) out


AC power inlet from AC supply


Network connector


Fan cover (do not use to lift)


Serial port (COM2)


Case lock


Parallel printer port


Handles to assist side panel removal


Serial port (COM1)


Security loop for cable or padlock


Dual USB port


System expansion slots


Mouse and keyboard ports


Side panel fixing screws


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Motherboard Components

A Onboard serial port 2 conn. (optional) S Ultra-wide (16-bit) SCSI connector
B CPU 1 fan connector T Narrow (8-bit) SCSI connector
C ATAPI CD audio connector (optional) U Sleep LED connector
D ATAPI-style telephony connector (optional) V Front panel I/O connectors
E ATAPI-style Line In connector (optional) W HDD LED input connector (4-pin)
F 2mm CD audio connector (optional) X Fan connector
G Fan connector Y Fan connector
H Back panel connectors Z Speaker
I Fan connector AA Battery
J Auxillary power connector BB HDD LED input connector (2-pin)
K Boot processor Slot 1 connector CC Wake-on-modem connector
L ATX power connector DD Wake-on-LAN connector
M Application processor Slot 1 connector EE SCSI PCI RAIDport connector
N DIMM sockets FF AGP connector
O Configuration jumper block GG Port connector (used for chassis security)
P Secondary IDE connector HH PCI connectors
Q Primary IDE connector II ISA connectors
R Floppy drive connector JJ Chassis security connector

Back panel connectors

A PS/2 connector (mouse or keyboard) F Serial port A connector
B Parallel port connector G Serial port B connector
C Audio Line In jack (optional) H LAN connector (optional)
D PS/2 connector (mouse or keyboard) I Audio Line Out jack (optional)
E USB connectors J Audio Mic In jack (optional)


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Motherboard Connections & pin-outs

A Fan J HDD LED (4-pin)
B ATAPI CD audio K Sleep LED
C CD audio (2mm) L Fan
D Line In M Fan
E Telephony N HDD LED (2-pin)
F Fan O Wake on Modem
G Auxillary power P Port (chassis security)
H Fan Q Security (option)
I Wake on LAN R Front Panel connectors


ATAPI CD Audio Connector (J1F1)

Pin Signal Name
1 Left CD In
2 CD_common
3 CD_common
4 Right CD In


ATAPI-Style Telephony Connector (J0E1)

Pin Signal Name
1 MONO_IN (from external device)
2 Ground
3 Ground


Fan Connector (J12B2) (J3F2) (J1M1) (J2E1) (J12A1)

Pin Signal Name
2 +12 V
3 Ground


Hard Drive LED Input Connector (J10A1)

Pin Signal Name
1 Ground


Hard Drive LED Input Connector (J11B1)

Pin Signal Name
1 Ground
4 Ground


Wake on LAN Connector (J6D1)

Pin Signal Name
1 +5 VSB
2 Ground


Wake-on-Modem Connector (J9A1)

Pin Signal Name
2 Ground


Auxiliary Power Supply Connector (J1M2)

Pin Signal Name
1 Ground
2 Ground
3 Ground
4 +3.3 V
5 +3.3 V
6 +5 V


Power/Sleep LED Header (J12D1)

Pin Signal Name
1 Ground
2 Yellow/Green
3 Green/Yellow


Front Panel connectors


Connector Pin Signal Name
A. Speaker 27
B. Reset 23
C. Power/Sleep LED 20
PWR_LED (+5 V)
PWR_LED (ground)
D. Hard Drive LED 16
HD_PWR (+5 V)
HD Active#
HD_PWR (+5 V)
E. Infrared 11
F. Sleep/Resume Switch 4
SLEEP_PU (pullup)
G. Power On 2


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Processor Upgrade

If your motherboard has one processor, you can upgrade the computer by replacing this processor with a faster one, or by installing an application processor.

If your motherboard has two processors, you can upgrade by replacing these processors with two faster processors.

If you install two processors, make sure they have:

  • Identical speeds and voltages.
  • The same stepping or a difference of no more than one stepping. Processor stepping is designated by a five-letter code, for example, SL28R, printed on the top edge of the S.E.C. cartridge.


If there is only one processor on a motherboard, it must be fitted in the boot processor Slot 1 connector. In a single-processor configuration, you must install a termination card in the empty application processor Slot 1 connector to ensure proper operation of the computer.


In all instances you must remove the rear drive carrier and the main cross strut of the chassis to safely access the system processors.

The rear drive carrier assembly has a large cooling fan fitted to the rear. It is essential that care is taken with this. It must be correctly refitted and reconnected after you have finished your work.

To Remove a Processor

To Install a Single Processor

To Remove the Termination Card

To Install the Termination Card

To Install a Second Processor

To Set the Processor Speed


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RAM Configuration

You can install from 16MB to 512MB of memory in the motherboard DIMM sockets. Memory can be installed in one, two, three, or four sockets. DIMM size can vary between sockets.

The motherboard supports 66-MHz unbuffered (72-bit) ECC SDRAM based on 168-pin 3.3V DIMMs with gold-plated contacts.

Single or double-sided DIMMs can be used as follows:

DIMM size Configuration
16MB 2 Mbit x 72
32MB 4 Mbit x 72
64MB 8 Mbit x 72
128MB 16 Mbit x 72

Refer to the Add-ins section for memory part numbers.


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Disk Drives

Hard Drives
MB Make Model Type Part Number
4GB IBM DCAS-34330 'Capricorn' UltraSCSI XB61177
9GB IBM DDRS-39130 'Draco' UltraSCSI XB62206
Tape Drive (requires AHA1510B interface card UF59378)
MB Make Model Type Part Number
12-24GB HP HP C1537A DDS III SU61220
Floppy Drives
MB Make Model Type Part Number
2 MB Mitsubishi MF355F-3450MP 3.5" 16037231
Speed Make Model Type Part Number
16x Sony CDU511-10/10 IDE PCAV XB61060


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DIMM memory expansion
Additional Processors
Single to dual 266MHz Pentium II processor 512KB ECC cache XB62827
AMI 431 single channel RAID & cable XB62536
4MB RAID cache upgrade XB61650
Controller cards
Adaptec 2940uw SCSI card (includes cable for duplexing) SU61229
Network options
Intel Pro 100B PCI Ethernet Card XB61343
Intel Pro 10+ ISA Combo Ethernet Card XB61345
Connectivity options
56K ISA modem XB62492
3Com Office Connect 8 port Micro Hub & 3 x 5m UTP cables XB1000
Uninterruptible Power Supply
APC 420v/s Smart UPS XB59898


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Jumper Settings

Note that with this motherboard the setting of the processor clock speed and clearing of passwords is carried out by software and not by hardware jumper settings, via a Maintenance menu in Setup.

To enable this mode of Setup, a Configuration Jumper Block (J7E1) is set as explained below. The diagram shows the location of the Configuration Jumper Block on the motherboard. The jumper is set to normal mode at the factory.

The following table shows the jumper settings for the different Setup modes. These modes configure Setup for normal operations, maintenance operations, or recovering the BIOS.

Function Jumper J7E1 Description
Normal 1-2
BIOS uses current configuration and passwords for booting. Connect pins 1 and 2 with a jumper on the configuration header (J7E1) to enable the mode. The BIOS uses the current bus/processor frequency ratio, configuration information, and passwords to boot the computer. Access to the Set-up program can be restricted using an administrative or user password. In normal mode, the BIOS attempt an automatic recovery if the configuration information in flash memory is corrupted.
Configure 2-3
After the POST runs, Setup starts and displays the Maintenance menu. There are options for setting the processor speed and clearing passwords. Connect pins 2 and 3 with a jumper on the configuration header (J7E1) to enable the mode. In this mode, Set-up automatically executes after the POST runs, and no password is required. Set-up provides the Maintenance menu with options for setting the processor speed and clearing passwords. All other Set-up screens are available. Configure mode uses the default BIOS settings for booting, not the current user or administrative settings. The default settings include the lowest bus/processor frequency ratio the processor supports. When the computer is rebooted, Set-up uses the original user and administrative settings with the exception of the options that were changed. For the configuration changes to take effect after exiting the Set-up program, power down the computer, set the configuration jumper to normal mode, and boot the computer. In configure mode, the BIOS attempts an automatic recovery if the configuration information flash memory is corrupted.
Recovery No jumper fitted This mode is for upgrading the BIOS or recovering BIOS data. Remove the jumper (no pins connected) from the configuration header (J7E1) to enable this mode. After the computer is powered-on, the BIOS attempts to upgrade or recover the BIOS data from a diskette in the floppy drive. If the recovery fails with a diskette in the boot drive, a beep code indicates that the recovery failed. If a diskette is not in the boot drive, the BIOS attempts to run the POST, does not boot the operating system, and displays a message that the jumper is not properly installed. For the configuration changes to take effect after a successful recovery, power down the computer, set the configuration jumper to normal mode, and boot the computer.

A step-by-step description of how to set the processor speed is given in "Processor Upgrades - To Set the Processor Speed".


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Clear CMOS

To erase the CMOS memory, remove the 3-volt Lithium battery (CR2032) and leave out for approximately 60 seconds before replacing. The CMOS will then require reconfiguring.

Replacing the configuration battery

When your computer is turned off, a lithium battery keeps the time-of-day clock and the values in CMOS RAM current. The battery should last about seven years. When the battery begins to die, it loses voltage; when the voltage drops below a certain level, the Setup program settings stored in CMOS RAM (for example, the date and time) might not be accurate. Replace the battery only with a direct equivalent and ensure correct polarity.

The CMOS battery is a lithium type. You must not use a metal or other conductive implement to remove the battery. If a short-circuit is accidentally made between the battery's positive an negative terminals, the battery may explode. Dispose of the battery according to the battery manufacturer's recommendations.

To replace the battery

  1. Turn off all peripheral devices connected to the computer.
  2. Turn off the computer and unplug all power cords.
  3. Take suitable anti-static precautions and remove the computer top and access covers.
  4. With a small non-metallic tool, gently pull the retaining clip from the battery, and it will pop up for easy removal. Note the orientation of the the "+" and "-" on the battery.
  5. Install the new battery in the socket, orienting the "+" and "-" correctly and press it home. Make sure the retaining clip is holding the battery in the socket correctly and firmly.
  6. Replace the computer covers.

You will need to enter the BIOS Setup utility to check your system settings.


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System Resources

Memory Map

DMA Channels

I/O Map

PCI Configuration Space Map



Memory Map

Address Range
Address Range
Size Description
1024 K - 1048576 K 100000 - 3FFFFFFF 1023 MB Extended memory (EDO memory)
1024 K - 524288 K 100000 - 1FFFFFFF 511 MB Extended memory (SDRAM)
928 K - 1024 K E8000 - FFFFF 96 KB System BIOS
800 K - 928 K C8000 - E7FFF 128 KB Available high DOS memory (open to ISA and PCI bus)
640 K - 800 K A0000 - C7FFF 160 KB Video memory and BIOS
639 K - 640 K 9FC00 - 9FFFF 1 KB Extended BIOS data (movable by memory manager software)
512 K - 639 K 80000 - 9FBFF 127 KB Extended conventional memory
0 K - 512 K 00000 - 7FFFF 512 KB Conventional memory


DMA Channels

DMA Channel Number Data Width System Resource
0 8 or 16 bits Audio
1 8 or 16 bits Audio/parallel port
2 8 or 16 bits Floppy drive
3 8 or 16 bits Parallel port (for ECP)/audio
4 - Reserved - cascade channel
5 16 bits Open
6 16 bits Open
7 16 bits Open


I/O Map

Note: This table does not list I/O addresses that may be used by add-in cards in the system.

Address (hex) Size Description
0000 - 000F 16 bytes PIIX4 - DMA 1
0020 - 0021 2 bytes PIIX4 - interrupt controller 1
002E - 002F 2 bytes Super I/O controller configuration registers
0040 - 0043 4 bytes PIIX4 - Counter/Timer 1
0048 - 004B 4 bytes PIIX4- Counter/Timer 2
0060 1 byte Keyboard Controller Byte - reset IRQ
0061 1 byte PIIX4 - NMI, speaker control
0064 1 byte Keyboard controller, CMD/STAT Byte
0070, bit 7 1 bit PIIX4 - enable NMI
0070, bits 6:0 7 bits PIIX4 - real time clock, address
0071 1 byte PIIX4 - real time clock, data
0078 1 byte Reserved - motherboard configuration
0079 1 byte Reserved - motherboard configuration
0080 - 008F 16 bytes PIIX4 - DMA page registers
00A0 - 00A1 2 bytes PIIX4 - interrupt controller 2
00B2 - 00B3 2 bytes APM control
00C0 - 00DE 31 bytes PIIX4 - DMA 2
00F0 1 byte Reset numeric error
0170 - 0177 8 bytes Secondary IDE channel
01F0 - 01F7 8 bytes Primary IDE channel
0200 - 0207 8 bytes Audio/game port
0220 - 022F 16 bytes Audio (Sound Blaster compatible)
0240 - 024F 16 bytes Audio (Sound Blaster compatible)
0278 - 027F 8 bytes LPT2
0290 - 0297 8 bytes Hardware monitor
02E8 - 02EF 8 bytes COM4/Video (8514A)
02F8 - 02FF 8 bytes COM2
0300 - 0301 2 bytes MPU-401 (MIDI)
0330 - 0331 2 bytes MPU-401 (MIDI)
0332 - 0333 2 bytes MPU-401 (MIDI)
0334 - 0335 2 bytes MPU-401 (MIDI)
0376 1 byte Secondary IDE channel command port
0377 1 byte Floppy channel 2 command
0377, bit 7 1 bit Floppy disk change, channel 2
0377, bits 6:0 7 bits Secondary IDE channel status port
0378 - 037F 8 bytes LPT1
0388 - 038D 6 bytes AdLib (FM synthesizer)
03B4 - 03B5 2 bytes Video (VGA)
03BA 1 byte Video (VGA)
03BC - 03BF 4 bytes LPT3
03C0 - 03CA 11 bytes Video (VGA)
03CC 1 byte Video (VGA)
03CE - 03CF 2 bytes Video (VGA)
03D4 - 03D5 2 bytes Video (VGA)
03DA 1 byte Video (VGA)
03E8 - 03EF 8 bytes COM3
03F0 - 03F5 6 bytes Floppy channel 1
03F6 1 byte Primary IDE channel command port
03F7 (Write) 1 byte Floppy channel 1 command
03F7, bit 7 1 bit Floppy disk change channel 1
03F7, bits 6:0 7 bits Primary IDE channel status port
03F8 - 03FF 8 bytes COM1
04D0 - 04D1 2 bytes Edge/level triggered PIC
0530 - 0537 8 bytes Windows Sound System
0604 - 060B 8 bytes Windows Sound System
LPTn + 400h 8 bytes ECP port, LPTn base address + 400h
0CF8 - 0CFB* 4 bytes PCI configuration address register
0CF9** 1 byte Turbo and reset control register
0CFC - 0CFF 4 bytes PCI configuration data register
0E80 - 0E87 8 bytes Windows Sound System
0F40 - 0F47 8 bytes Windows Sound System
0FF0 - 0FF7 8 bytes CS4236B audio control
FF00 - FF07 8 bytes IDE bus master register
FFA0 - FFA7 8 bytes Primary bus master IDE registers
FFA8 - FFAF 8 bytes Secondary bus master IDE registers
007C, bits 5:4 2 bits Chassis fan RPM sense selection

*  DWORD access only.
** Byte access only.


PCI Configuration Space Map

00 00 00 Intel 82443LX (PAC)
01 00 00 Intel 82371AB (PAC ) A.G.P. bus
00 02 00 Intel 82371AB (PIIX4 ) PCI/ISA bridge
00 02 01 Intel 82371AB (PIIX4 ) IDE bus master
00 02 02 Intel 82371AB (PIIX4 ) USB
00 02 03 Intel 82371AB (PIIX4 ) power management
00 03 00 Ethernet
00 09 00 SCSI
00 0D 00 PCI expansion slot 1 (J1D2)
00 0E 00 PCI expansion slot 2 (J1D1)
00 0F 00 PCI expansion slot 3 (J1C1)
00 10 00 PCI expansion slot 4 (J1B1)



IRQ System Resource
NMI I/O channel check
0 Reserved, interval timer
1 Reserved, keyboard buffer full
2 Reserved, cascade interrupt from slave PIC
3 COM2*
4 COM1*
5 Plug and Play option /audio/user available
6 Floppy drive
7 LPT1*
8 Real time clock
9 Reserved
10 Windows Sound System*
11 User available
12 Onboard mouse port (if present, else user available)
13 Reserved, math coprocessor
14 Primary IDE (if present, else user available)
15 Secondary IDE (if present, else user available)

* Default, but can be changed to another IRQ


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POST Beep Codes

Beeps 80h Code Description
1 B4h One short beep before boot
1-2 98h Search for option ROMs
1-2-2-3 16h BIOS ROM checksum
1-3-1-1 20h Test DRAM refresh
1-3-1-3 22h Test 8742 keyboard controller
1-3-4-1 2Ch RAM failure on address line nnnn
1-3-4-3 2Eh RAM failure on data bits nnnn of low byte of memory bus
1-4-1-1 30h RAM failure on data bits nnnn of high byte of memory bus
2-1-2-3 46h Check ROM copyright notice
2-2-3-1 58h Test for unexpected interrupts

nnnn = hexadecimal number


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Computing for a Connected World