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LS700 (Portland) Motherboard (Rev1.14)

 



Motherboard Components

 

A ISA connectors L Battery
B CD-ROM audio connector M SIMM sockets
C Telephony connector A N Floppy drive connector
D Wavetable connector O Primary IDE connector
E Telephony connector B P Secondary IDE connector
F Audio line in connector Q Front panel connectors
G Back panel I/O connectors R Jumper block
H Slot 1 processor connector S Fan 1 connector
I Heatsink support mounting holes T Chassis security connector
J Power connector U Fan 3 connector
K Speaker (optional) V PCI connectors

 

A PS/2 connector (mouse or keyboard) F Serial port 1 connector
B Parallel port connector G Serial port 2 connector
C MIDI/game port connector H Audio line out jack
D PS/2 connector (mouse or keyboard) I Audio line in jack
E USB connectors J Audio mic in jack



RAM Configuration

The motherboard supports up to 256 MB of DRAM. DRAM is implemented through four 72-pin SIMM sockets.

Memory error checking and correction is supported with parity or ECC SIMMs. Parity or ECC (EDO) SIMMs are automatically detected.

EDO ECC SIMM memory expansion for Pentium II
32MB SIMMS XB61055
64Mb SIMMS XB61056



Disk Drives

MB Make Model Type Part Number
2GB Quantum TM 2110 A IDE SU59083

Floppy Drives

MB Make Model Type Part Number
2 MB Sony MPF590-F 3.5"

CD-ROM

MB Make Model Type Part Number
Sony CDU511-10/10 IDE 15820231



Jumper Settings

Function

Block

Pins

Description
Setup Program Access

J9C1-D

5-6
4-5

Enabled (default)
Disabled
BIOS Recovery

J9C1-A

5-6
4-5

Normal (default)
Recover
CMOS Clear

J9C1-C

5-6
4-5

Keep (default)
Clear
Password Clear

J9C1-D

2-3
1-2

Keep (default)
Clear



Motherboard Connections

Fan Connectors Hardware Monitor Option
Audio Subsystem Front Panel Connections



Fan Connectors

The motherboard has connectors for two fans. Both connectors have the same pin-outs. See overleaf for details.

Fan 1 Connector

Fan 3 Connector

Pin Signal Name
1 Ground
2 +12 V
3 FAN_SEN



Audio Subsystem

The onboard audio subsystem is based on the Yamaha OPL family of single-chip audio controllers (YM 715). The audio subsystem provides the digital audio and analog mixing functions needed for recording and playing sound on personal computers. The subsystem features:

Line and microphone level inputs
MIDI/Game port
3-D enhanced stereo
Full digital control of all mixer and volume control functions
Full duplex operation
Sound Blaster Pro, Windows Sound System, Roland MPU-401, AdLib, and Multimedia PC Level 2 (MPCII) compatibility
Onboard Yamaha YM 704 wavetable synthesizer (optional)
Wavetable upgrade connector
CD-ROM audio connector
Telephony connectors

CD-ROM Audio Connector J2F6

Pin

Signal Name

1

Ground
2 CD-left
3 Ground
4 CD-right

 

Telephony Connector A J2F1
Pin Signal Name
1 Ground
2 Mono in
3 Mono out
4 Key

 

Wavetable Connector J2F2
Pin Signal Name
1 Waveright
2 Ground
3 Waveleft
4 Ground
5 Key
6 Ground
7 No connection
8 MIDI_OUT

 

Telephony Connector B J2F3
Pin Signal Name
1 Mono in
2 Ground
3 Ground
4 Mono out

 

Audio Line In Connector J3F1
Pin Signal Name
1 Left Line-in
2 Ground
3 Ground
4 Right line-in



Hardware Monitor Option

The hardware monitor option features the following:

An integrated temperature sensor
Fan speed sensors
Power supply voltage monitor
POST test result and error code storage
Support for Intel LANDesk Client Manager
Connector for external chassis security feature

These features are implemented by an integrated hardware monitor device.

Chassis Security Connector
Pin Signal name
1 Ground
2 CHS_SEC



Front Panel Connections

The motherboard has connectors for controls and indicators typically located on the front panel of the computer. A jumper on pins 26/27 connects the on-board speaker.

Front panel connections

Connector

Pin

Signal Name
A. Speaker*

27

SPKR_HDR

26

PIEZO_IN

25

Key

24

Ground
B. Reset switch

23

SW_RST

22

Ground
  Key
C. Power LED

20

+5 V

19

Key

18

Ground
  Key
D. Hard drive LED

16

+5 V

15

HD Active#

14

Key

13

+5 V
  Key
E. Infrared

11

CONIR (consumer IR)

10

IrTX (transmit)

9

Ground

8

IrRX (receive)

7

Key

6

+5 V
  Key
F. Sleep switch

4

+5 V

3

SLEEP
G. Power switch

2

Ground

1

SW_ON#



Rear Panel

 

A Power supply fan vent holes
B Socket for AC power cord
C Add-in card slots
D Typical motherboard I/O connectors
E Input voltage select switch



How to Clear CMOS RAM

Normally, you should only have to do this procedure after you upgrade the BIOS.

  1. Observe the precautions in "Before You Begin" (see page 1 of chapter 2 of your Owner's Handbook).
  2. Turn off all peripheral devices connected to the computer.
  3. Turn off the computer and unplug the power cable.
  4. Remove the computer top and access covers.
  5. On jumper block J9C1-C, move the jumper from pins 5-6 to pins 4-5 as shown below.

  6. Turn on the computer and allow it to boot.
  7. Repeat steps 3 and 4.
  8. Move the jumper back to pins 5-6 to restore normal operation as shown below.

  9. Replace the cover and turn on the computer.



Setup Screens



Motherboard Resources

Memory Map DMA Channels
I/O Map Interrupts
PCI Configuration Space Map



Memory Map

Address Range (Decimal) Address Range (hex)

Size

Description
1024K-262144K 100000-10000000

255M

Extended memory
960K-1024K F0000-FFFFF

64K

System BIOS
944K-960K EC000-EFFFF

16K

Boot Block
936K-944K EA000-EBFFF

8K

ESCD (Plug and Play configuration area)
932K-936K E9000-E9FFF

4K

Reserved for BIOS
928K-932K E8000-E8FFF

4K

Logo area
896K-928K E0000-E7FFF

32K

BIOS reserved
800K-896K C8000-DFFFF

96K

Available high DOS memory (open to ISA and PCI bus)
640K-800K A0000-C7FFF

160K

Video memory and BIOS
639K-640K 9FC00-9FFFF

1K

Extended BIOS Data (moveable by memory management software)
512K-639K 80000-9FBFF

127K

Extended conventional memory
0K-512K 00000-7FFFF

512K

Conventional memory



I/O Map

Address (hex) Size Description
0000 - 000F 16 bytes PIIX3 - DMA 1
0020 - 0021 2 bytes PIIX3 - Interrupt Controller 1
002E - 002F 2 bytes I/O Controller Config. Reg.
0040 - 0043 4 bytes PIIX3 - Timer 1
0048 - 004B 4 bytes PIIX3 - Timer 2
0060 1 byte Keyboard Controller Byte - Reset IRQ
0061 1 byte PIIX3 - NMI, speaker control
0064 1 byte Keyboard Controller, CMD/STAT Byte
0070, bit 7 1 bit PIIX3 - Enable NMI
0070, bits 6:0 7 bits PIIX3 - Real Time Clock, Address
0071 1 byte PIIX3 - Real Time Clock, Data
0078 1 byte Reserved - Brd. Config.
0079 1 byte Reserved - Brd. Config.
0080 - 008F 16 bytes PIIX3 - DMA Page Registers
00A0 - 00A1 2 bytes PIIX3 - Interrupt Controller 2
00B2 - 00B3 2 bytes APM Control
00C0 - 00DE 31 bytes PIIX3 - 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 Game Port
0220 - 022F 16 bytes Audio
0240 - 024F 16 bytes Audio
0278 - 027F 8 bytes Parallel Port 2
0295 1 byte Hardware monitor
0296 1 byte Hardware monitor
02E8 - 02EF 8 bytes Serial Port 4/Video (8514A)
02F8 - 02FF 8 bytes Serial Port 2
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 Sec. IDE Chan. Cmd. Port
0377 1 byte Floppy Chan. 2 Cmd.
0377, bit 7 1 bit Floppy Disk Chg. Chan. 2
0377, bits 6:0 7 bits Sec. IDE Chan. Status Port
0378 - 037F 8 bytes Parallel Port 1
0388 - 038D 6 bytes FM Synthesizer
03B4 - 03B5 2 bytes VGA
03BA 1 byte VGA
03BC - 03BF 4 bytes Parallel Port 3
03C0 - 03CA 2 bytes VGA
03CC 1 byte VGA
03CE - 03CF 2 bytes VGA
03D4 - 03D5 2 bytes VGA
03DA 1 byte VGA
03E8 - 03EF 8 bytes Serial Port 3
03F0 - 03F5 6 bytes Floppy Channel 1
03F6 1 byte Pri. IDE Chan. Cmd. Port
03F7 (Write) 1 byte Floppy Chan.1 Cmd.
03F7, bit 7 1 bit Floppy Disk Chg. Chan. 1
03F7, bits 6:0 7 bits Pri. IDE Chan. Status Port
03F8 - 03FF 8 bytes Serial Port 1
04D0 - 04D1 2 bytes Edge/level triggered PIC
0530 - 0537 8 bytes Windows Sound System
0604 - 060B 8 bytes Windows Sound System
LPT + 400h 8 bytes ECP port, LPT + 400h
0CF8 - 0CFB * 4 bytes PCI Config. Address Reg.
0CF9 ** 1 byte Turbo & Reset Control Reg.
0CFC - 0CFF 4 bytes PCI Config. Data Reg.
0E80 - 0E87 8 bytes Windows Sound System
0F40 - 0F47 8 bytes Windows Sound System
0F86 - 0F87 2 bytes Yamaha OPL3-SA Config.
FF00 - FF07 8 bytes IDE Bus Master Reg.
FFA0 - FFA7 8 bytes Pri. Bus Master IDE Reg.
FFA8 - FFAF 8 bytes Sec. Bus Master IDE Reg.

* Only by DWORD accesses. ** Only by Byte accesses.



PCI Configuration Space Map

Bus Number (hex)

Device Number (hex)

Function Number (hex)

Description

00

00

00

Intel 82441FX (PMC)

00

07

00

Intel 82371SB (PIIX3) PCI/ISA Bridge

00

07

01

Intel 82371SB (PIIX3) IDE Bus Master

00

07

02

Intel 82371SB (PIIX3) USB

00

0B

00

PCI Expansion Slot 1 (J4E2)

00

0F

00

PCI Expansion Slot 2 (J4E1)

00

01

00

PCI Expansion Slot 3 (J4D1)

00

13

00

PCI Expansion Slot 4 (J4C1)



DMA Channels

DMA

Data Width System Resource

0

8- or 16-bits Audio if present, else parallel port

1

8- or 16-bits Audio if present, else available

2

8- or 16-bits Floppy drive

3

8- or 16-bits Audio if present, else parallel port (for ECP/EPP configuration)

4

16-bits Reserved - Cascade Channel

5

16-bits Available

6

16-bits Available

7

16-bits Available



Interrupts

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

Serial Port 2

4

Serial Port 1

5

Parallel Port 2

6

Floppy drive

7

Parallel Port 1

8

Real-time clock

9

User available

10

User available

11

Audio if present, else 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



Beep Codes

The computer uses special audio beep codes to signal certain hardware faults.

One long beep followed by several short beeps indicates a video problem. There may be no display on the screen.

Beeps

Error Message Description

1

Refresh Failure The memory refresh circuitry on the motherboard is faulty.

2

Parity Error A parity error occurred in system memory.

3

First Bank Memory Failure Memory failure in the first bank of memory.

4

Timer Not Operational Memory failure in the first bank of memory or Timer 1 on the motherboard is not functioning.

5

Processor Error The processor generated an error.

6

Keyboard Controller Failure The keyboard controller may be bad. The BIOS cannot switch to protected mode.

7

Processor Exception Interrupt Error The processor generated an exception interrupt.

8

Display Memory Read/Write Error The system video adapter is either missing or its memory is faulty. This is not a fatal error.

9

ROM Checksum Error ROM checksum value does not match the value encoded in the BIOS.

10

CMOS Shutdown Register Read/Write Error The shutdown register for CMOS RAM failed.


 

Computing for a Connected World