PCI400C-D Motherboard Settings and Configuration

J-BOND COMPUTER SYSTEMS CORPORATION

PCI400C-D

Processor
UMCU5S/UMCU5SD/SL80486SX/SL80486SX2/SL80486DX/ SL80486DX2/CX486DX2/AM486DX2/AM486DXL2/SL80486DX2/ SL80486DX2(ODP)/CX486DX4/AM486DX4/(SL)AM486DX4(WB)/ SL80486DX4/P24T/ CX5X86
Processor Speed
25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Chip Set
SIS
Video Chip Set
S3
Maximum Onboard Memory
128MB
Maximum Video Memory
Unidentified
Cache
128/256/512KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
32-bit PCI slot, Ethernet 10Base2 connector, Ethernet 10BaseT connector, floppy drive interface, game port, green PC connector, IDE interfaces (2), SCSI connector, parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
VGA port
CN1
Speaker
J3
Parallel port
CN2
Power LED & keylock
J4
Serial port 2
CN3
Reset switch
J5
Serial port 1
CN4
Green PC connector
J6
PS/2 mouse port
CN5
Turbo LED
J7
Floppy drive interface
CN6
Turbo switch
J8
Ethernet 10BaseT connector
CN7
Green PC LED
J9
IDE interface 2
CN8
External battery
J10
IDE interface 1
CN9
Chassis fan power
J11
Ethernet 10Base2 connector
CN10
Game interface
J16
SCSI interface
CN11
Green PC connector (for I/O)
JP5
IDE interface LED
J1
Riser slot
SL1
SCSI LED
J2
32-bit PCI slot
SL2

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
J10
Pins 2 & 3 closed

CMOS memory clear
J10
Pins 3 & 4 closed

Battery type select external
J10
Closed
»
Factory configured - do not alter
JC1
Open
»
Factory configured - do not alter
JC2
Open
»
Green PC select STP.CLK
JP1
Pins 1 & 2 closed

Green PC select SMI OUT
JP1
Pins 2 & 3 closed
»
Game port enabled
JP14
Closed

Game port disabled
JP14
Open
»
IDE interface enabled
JP15
Pins 1 & 2 closed

IDE interface disabled
JP15
Pins 2 & 3 closed
»
Parallel port IRQ select IRQ7
JP16
Pins 1 & 2 closed

Parallel port IRQ select IRQ5
JP16
Pins 2 & 3 closed

SCSI terminator power source select from system board
JP26
Closed

SCSI terminator power source select from peripheral
JP26
Open

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
None
None
None
2MB
(1) 512K x 36
None
None
None
2MB
(1) 256K x 36
(1) 256K x 36
None
None
3MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
None
4MB
(1) 1M x 36
None
None
None
4MB
(1) 512K x 36
(1) 256K x 36
(1) 256K x 36
None
4MB
(1) 512K x 36
(1) 512K x 36
None
None
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
5MB
(1) 1M x 36
(1) 256K x 36
None
None
5MB
(1) 256K x 36
(1) 512K x 36
(1) 512K x 36
None
5MB
(1) 256K x 36
(1) 1M x 36
None
None
6MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
None
7MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
8MB
(1) 1M x 36
(1) 512K x 36
(1) 512K x 36
None
8MB
(1) 1M x 36
(1) 1M x 36
None
None
9MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
None
9MB
(1) 256K x 36
(1) 2M x 36
None
None
10MB
(1) 2M x 36
(1) 512K x 36
None
None
11MB
(1) 2M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
12MB
(1) 2M x 36
(1) 512K x 36
(1) 512K x 36
None
13MB
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
14MB
(1) 2M x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
14MB
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 4M x 36
None
None
None
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
17MB
(1) 4M x 36
(1) 256K x 36
None
None
18MB
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
None
20MB
(1) 4M x 36
(1) 1M x 36
None
None
28MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
32MB
(1) 8M x 36
None
None
None
32MB
(1) 4M x 36
(1) 4M x 36
None
None
33MB
(1) 256K x 36
(1) 8M x 36
None
None
34MB
(1) 8M x 36
(1) 256K x 36
(1) 256K x 36
None
34MB
(1) 8M x 36
(1) 512K x 36
None
None
36MB
(1) 8M x 36
(1) 512K x 36
(1) 512K x 36
None
40MB
(1) 4M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
44MB
(1) 8M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
48MB
(1) 8M x 36
(1) 2M x 36
(1) 2M x 36
None
64MB
(1) 8M x 36
(1) 8M x 36
None
None
72MB
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
None
80MB
(1) 8M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
80MB
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
None
96MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
None
97MB
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
98MB
(1) 512K x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
100MB
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
104MB
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
112MB
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
128MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
128MB
(1) 16M x 36
(1) 16M x 36
None
None
Note: The location of the banks are unidentified. Any SIMM can be installed in any slot.

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
128KB
(4) 32K x 8
None
(1) 8K x 8
256KB (A)
(4) 32K x 8
(4) 32K x 8
(1) 16K x 8
256KB (B)
(4) 64K x 8
None
(1) 16K x 8
512KB (A)
(4) 128K x 8
None
(1) 32K x 8
512KB (B)
(4) 64K x 8
(4) 64K x 8
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP6
JP7
JP8
JP9
JP10
128KB
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2, 3 & 4
256KB (A)
1 & 2
2 & 3
2 & 3
1 & 2
2 & 3, 4 & 5
256KB (B)
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2, 3 & 4
512KB (A)
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2, 3 & 4
512KB (B)
2 & 3
2 & 3
2 & 3
1 & 2
2 & 3, 4 & 5
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION
Speed
JP2
JP3
JP4
25MHz
Open
Open
Open
33MHz
Open
Closed
Closed
40MHz
Open
Closed
Open
50iMHz
Open
Open
Open
66iMHz
Open
Closed
Closed
75iMHz
Open
Open
Open
100iMHz
Open
Closed
Closed

CPU TYPE SELECTION
Type
JC3
JC4
JC5
JC6
JC7
UMC U5S (5v)
Open
1 & 2
2 & 3
Open
Open
UMC U5SD (5v)
Open
1 & 2
2 & 3
Open
Open
SL80486SX (5v)
Open
1 & 2
2 & 3
Open
Open
SL80486SX2 (5v)
Open
1 & 2
2 & 3
Open
Open
SL80486DX (5v)
Open
1 & 2
2 & 3
Open
Open
CX486DX2 (5v)
Open
1 & 2
2 & 3
2 & 3
Open
AM486DX2
Open
Open
2 & 3
Open
Open
AM486DXL2 (3.3v)
Open
1 & 2
2 & 3
Open
2 & 3
SL80486DX2 (5v)
Open
1 & 2
2 & 3
Open
Open
SL80486DX2(ODP)
Open
1 & 2
2 & 3
Open
Open
CX486DX4 (3.3v)
Open
1 & 2
2 & 3
2 & 3
Open
AM486DX4 (3v)
Open
Open
2 & 3
Open
Open
(SL)AM486DX4(WB)
Open
1 & 2
2 & 3
1 & 2
Open
SL80486DX4
Open
1 & 2
2 & 3
Open
Open
SL80486DX4(3v)
Open
1 & 2
2 & 3
Open
Open
P24T
1 & 2
1 & 2
2 & 3
Open
Open
CX5X86 (3v)
Open
1 & 2
2 & 3
1 & 2
Open
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)
Type
JC8
JC9
JC10
JC11
UMC U5S (5v)
Open
Open
3 & 4
2 & 3
UMC U5SD (5v)
Open
Open
3 & 4
3 & 4
SL80486SX (5v)
Open
3 & 4
Open
2 & 3
SL80486SX2 (5v)
Open
3 & 4
Open
2 & 3
SL80486DX (5v)
Open
3 & 4
Open
1 & 2, 3 & 4
CX486DX2 (5v)
Open
2 & 3
2 & 3
1 & 2, 3 & 4
AM486DX2
Open
Open
Open
1 & 2, 3 & 4
AM486DXL2 (3.3v)
Open
Open
3 & 4
1 & 2, 3 & 4
SL80486DX2 (5v)
Open
3 & 4
Open
1 & 2, 3 & 4
SL80486DX2(ODP)
Open
3 & 4
Open
1 & 2, 3 & 4
CX486DX4 (3.3v)
Open
2 & 3
2 & 3
1 & 2, 3 & 4
AM486DX4 (3v)
Open
Open
Open
1 & 2, 3 & 4
(SL)AM486DX4(WB)
Open
1 & 2, 3 & 4
Open
1 & 2, 3 & 4
SL80486DX4
Open
3 & 4
Open
1 & 2, 3 & 4
SL80486DX4(3v)
Open
3 & 4
Open
1 & 2, 3 & 4
P24T
Open
3 & 4
Open
1 & 2, 3 & 4
CX5X86 (3v)
Open
1 & 2, 3 & 4
Open
1 & 2, 3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)
Type
JC12
JC13
JC14
JC15
UMC U5S (5v)
1 & 2
Open
Open
Open
UMC U5SD (5v)
1 & 2
Open
Open
Open
SL80486SX (5v)
3 & 4
Open
2 & 3
4 & 5
SL80486SX2 (5v)
3 & 4
Open
2 & 3
4 & 5
SL80486DX (5v)
3 & 4
Open
2 & 3
4 & 5
CX486DX2 (5v)
3 & 4
Open
1 & 2
2 & 3
AM486DX2
3 & 4
Open
Open
Open
AM486DXL2 (3.3v)
1 & 2, 3 & 4
Open
4 & 5
Open
SL80486DX2 (5v)
3 & 4
Open
2 & 3
4 & 5
SL80486DX2(ODP)
3 & 4
Open
2 & 3
4 & 5
CX486DX4 (3.3v)
3 & 4
Open
1 & 2
2 & 3
AM486DX4 (3v)
3 & 4
Open
Open
Open
(SL)AM486DX4(WB)
3 & 4
Open
2 & 3
4 & 5
SL80486DX4
2 & 3
4 & 5
2 & 3
1 & 2
SL80486DX4(3v)
3 & 4
Open
2 & 3
4 & 5
P24T
2 & 3
Open
2 & 3
1 & 2
CX5X86 (3v)
3 & 4
2 & 3
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
JP33
3.3v
Open
5v
Pins 1 & 2, 3 & 4, 5 & 6 closed

DMA CHANNEL SELECTION
Channel
JP20
JP21

1
Pins 1 & 2 closed
Pins 1 & 2 closed
»
3
Pins 2 & 3 closed
Pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION
Setting
JP17
JP18
JP19
JP31
»
EPP mode
Open
Pins 2 & 3 closed
Pins 1 & 2 closed
Pins 1 & 2 closed

LPT1 (378h)
Any setting
Pins 2 & 3 closed
Pins 2 & 3 closed
Pins 1 & 2 closed

ECP/EPP
Open
Pins 1 & 2 closed
Pins 2 & 3 closed
Pins 1 & 2 closed

EXT, 2 FDD
Open
Pins 1 & 2 closed
Pins 1 & 2 closed
Pins 1 & 2 closed

SERIAL PORT 1 ADDRESS SELECTION
Setting
JP22
JP25
COM1 (3F8h)
Pins 1 & 2 closed
Pins 2 & 3 closed
COM3 (3E8h)
Pins 2 & 3 closed
Pins 1 & 2 closed
COM4 (2E8h)
Pins 1 & 2 closed
Pins 1 & 2 closed
Disabled
Pins 2 & 3 closed
Pins 2 & 3 closed

SERIAL PORT 2 ADDRESS SELECTION
Setting
JP23
JP24
COM2 (2F8h)
Pins 1 & 2 closed
Pins 2 & 3 closed
COM3 (3E8h)
Pins 1 & 2 closed
Pins 1 & 2 closed
COM4 (2E8h)
Pins 2 & 3 closed
Pins 1 & 2 closed
Disabled
Pins 2 & 3 closed
Pins 2 & 3 closed

SCSI/LAN INTERRUPT SELECTION
Setting
JP27
JP28
JP29
On board LAN INT C
2 & 3
1 & 2
Any setting
On board LAN INT B
2 & 3
2 & 3
Any setting
On board SCSI INT C
2 & 3
1 & 2
Any setting
On board SCSI INT B
2 & 3
2 & 3
Any setting
Both LAN/SCSI used (LAN INT C, SCSI INT B)
2 & 3
2 & 3
2 & 3
Both LAN/SCSI used (LAN INT B, SCSI INT C)
2 & 3
1 & 2
1 & 2
No LAN/SCSI
1 & 2
Any setting
Any setting
Note: Pins designated should be in the closed position.

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Processor	UMCU5S/UMCU5SD/SL80486SX/SL80486SX2/SL80486DX/ SL80486DX2/CX486DX2/AM486DX2/AM486DXL2/SL80486DX2/ SL80486DX2(ODP)/CX486DX4/AM486DX4/(SL)AM486DX4(WB)/ SL80486DX4/P24T/ CX5X86
Processor Speed	25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Chip Set	SIS
Video Chip Set	S3
Maximum Onboard Memory	128MB
Maximum Video Memory	Unidentified
Cache	128/256/512KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slot, Ethernet 10Base2 connector, Ethernet 10BaseT connector, floppy drive interface, game port, green PC connector, IDE interfaces (2), SCSI connector, parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
VGA port	CN1	Speaker	J3
Parallel port	CN2	Power LED & keylock	J4
Serial port 2	CN3	Reset switch	J5
Serial port 1	CN4	Green PC connector	J6
PS/2 mouse port	CN5	Turbo LED	J7
Floppy drive interface	CN6	Turbo switch	J8
Ethernet 10BaseT connector	CN7	Green PC LED	J9
IDE interface 2	CN8	External battery	J10
IDE interface 1	CN9	Chassis fan power	J11
Ethernet 10Base2 connector	CN10	Game interface	J16
SCSI interface	CN11	Green PC connector (for I/O)	JP5
IDE interface LED	J1	Riser slot	SL1
SCSI LED	J2	32-bit PCI slot	SL2

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	J10	Pins 2 & 3 closed
	CMOS memory clear	J10	Pins 3 & 4 closed
	Battery type select external	J10	Closed
»	Factory configured - do not alter	JC1	Open
»	Factory configured - do not alter	JC2	Open
»	Green PC select STP.CLK	JP1	Pins 1 & 2 closed
	Green PC select SMI OUT	JP1	Pins 2 & 3 closed
»	Game port enabled	JP14	Closed
	Game port disabled	JP14	Open
»	IDE interface enabled	JP15	Pins 1 & 2 closed
	IDE interface disabled	JP15	Pins 2 & 3 closed
»	Parallel port IRQ select IRQ7	JP16	Pins 1 & 2 closed
	Parallel port IRQ select IRQ5	JP16	Pins 2 & 3 closed
	SCSI terminator power source select from system board	JP26	Closed
	SCSI terminator power source select from peripheral	JP26	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 512K x 36	None	None	None
2MB	(1) 256K x 36	(1) 256K x 36	None	None
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	None
4MB	(1) 1M x 36	None	None	None
4MB	(1) 512K x 36	(1) 256K x 36	(1) 256K x 36	None
4MB	(1) 512K x 36	(1) 512K x 36	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
5MB	(1) 1M x 36	(1) 256K x 36	None	None
5MB	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36	None
5MB	(1) 256K x 36	(1) 1M x 36	None	None
6MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	None
7MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
8MB	(1) 1M x 36	(1) 512K x 36	(1) 512K x 36	None
8MB	(1) 1M x 36	(1) 1M x 36	None	None
9MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	None
9MB	(1) 256K x 36	(1) 2M x 36	None	None
10MB	(1) 2M x 36	(1) 512K x 36	None	None
11MB	(1) 2M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
12MB	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36	None
13MB	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
14MB	(1) 2M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
14MB	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	None	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
17MB	(1) 4M x 36	(1) 256K x 36	None	None
18MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	None
20MB	(1) 4M x 36	(1) 1M x 36	None	None
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 8M x 36	None	None	None
32MB	(1) 4M x 36	(1) 4M x 36	None	None
33MB	(1) 256K x 36	(1) 8M x 36	None	None
34MB	(1) 8M x 36	(1) 256K x 36	(1) 256K x 36	None
34MB	(1) 8M x 36	(1) 512K x 36	None	None
36MB	(1) 8M x 36	(1) 512K x 36	(1) 512K x 36	None
40MB	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
44MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36	None
64MB	(1) 8M x 36	(1) 8M x 36	None	None
72MB	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36	None
80MB	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
80MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	None
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	None
97MB	(1) 256K x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
98MB	(1) 512K x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
100MB	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
104MB	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
112MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
128MB	(1) 16M x 36	(1) 16M x 36	None	None
Note: The location of the banks are unidentified. Any SIMM can be installed in any slot.

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 8K x 8
256KB (A)	(4) 32K x 8	(4) 32K x 8	(1) 16K x 8
256KB (B)	(4) 64K x 8	None	(1) 16K x 8
512KB (A)	(4) 128K x 8	None	(1) 32K x 8
512KB (B)	(4) 64K x 8	(4) 64K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP6	JP7	JP8	JP9	JP10
128KB	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2, 3 & 4
256KB (A)	1 & 2	2 & 3	2 & 3	1 & 2	2 & 3, 4 & 5
256KB (B)	1 & 2	2 & 3	1 & 2	2 & 3	1 & 2, 3 & 4
512KB (A)	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2, 3 & 4
512KB (B)	2 & 3	2 & 3	2 & 3	1 & 2	2 & 3, 4 & 5
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION
Speed	JP2	JP3	JP4
25MHz	Open	Open	Open
33MHz	Open	Closed	Closed
40MHz	Open	Closed	Open
50iMHz	Open	Open	Open
66iMHz	Open	Closed	Closed
75iMHz	Open	Open	Open
100iMHz	Open	Closed	Closed

CPU TYPE SELECTION
Type	JC3	JC4	JC5	JC6	JC7
UMC U5S (5v)	Open	1 & 2	2 & 3	Open	Open
UMC U5SD (5v)	Open	1 & 2	2 & 3	Open	Open
SL80486SX (5v)	Open	1 & 2	2 & 3	Open	Open
SL80486SX2 (5v)	Open	1 & 2	2 & 3	Open	Open
SL80486DX (5v)	Open	1 & 2	2 & 3	Open	Open
CX486DX2 (5v)	Open	1 & 2	2 & 3	2 & 3	Open
AM486DX2	Open	Open	2 & 3	Open	Open
AM486DXL2 (3.3v)	Open	1 & 2	2 & 3	Open	2 & 3
SL80486DX2 (5v)	Open	1 & 2	2 & 3	Open	Open
SL80486DX2(ODP)	Open	1 & 2	2 & 3	Open	Open
CX486DX4 (3.3v)	Open	1 & 2	2 & 3	2 & 3	Open
AM486DX4 (3v)	Open	Open	2 & 3	Open	Open
(SL)AM486DX4(WB)	Open	1 & 2	2 & 3	1 & 2	Open
SL80486DX4	Open	1 & 2	2 & 3	Open	Open
SL80486DX4(3v)	Open	1 & 2	2 & 3	Open	Open
P24T	1 & 2	1 & 2	2 & 3	Open	Open
CX5X86 (3v)	Open	1 & 2	2 & 3	1 & 2	Open
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)
Type	JC8	JC9	JC10	JC11
UMC U5S (5v)	Open	Open	3 & 4	2 & 3
UMC U5SD (5v)	Open	Open	3 & 4	3 & 4
SL80486SX (5v)	Open	3 & 4	Open	2 & 3
SL80486SX2 (5v)	Open	3 & 4	Open	2 & 3
SL80486DX (5v)	Open	3 & 4	Open	1 & 2, 3 & 4
CX486DX2 (5v)	Open	2 & 3	2 & 3	1 & 2, 3 & 4
AM486DX2	Open	Open	Open	1 & 2, 3 & 4
AM486DXL2 (3.3v)	Open	Open	3 & 4	1 & 2, 3 & 4
SL80486DX2 (5v)	Open	3 & 4	Open	1 & 2, 3 & 4
SL80486DX2(ODP)	Open	3 & 4	Open	1 & 2, 3 & 4
CX486DX4 (3.3v)	Open	2 & 3	2 & 3	1 & 2, 3 & 4
AM486DX4 (3v)	Open	Open	Open	1 & 2, 3 & 4
(SL)AM486DX4(WB)	Open	1 & 2, 3 & 4	Open	1 & 2, 3 & 4
SL80486DX4	Open	3 & 4	Open	1 & 2, 3 & 4
SL80486DX4(3v)	Open	3 & 4	Open	1 & 2, 3 & 4
P24T	Open	3 & 4	Open	1 & 2, 3 & 4
CX5X86 (3v)	Open	1 & 2, 3 & 4	Open	1 & 2, 3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION (CON’T)
Type	JC12	JC13	JC14	JC15
UMC U5S (5v)	1 & 2	Open	Open	Open
UMC U5SD (5v)	1 & 2	Open	Open	Open
SL80486SX (5v)	3 & 4	Open	2 & 3	4 & 5
SL80486SX2 (5v)	3 & 4	Open	2 & 3	4 & 5
SL80486DX (5v)	3 & 4	Open	2 & 3	4 & 5
CX486DX2 (5v)	3 & 4	Open	1 & 2	2 & 3
AM486DX2	3 & 4	Open	Open	Open
AM486DXL2 (3.3v)	1 & 2, 3 & 4	Open	4 & 5	Open
SL80486DX2 (5v)	3 & 4	Open	2 & 3	4 & 5
SL80486DX2(ODP)	3 & 4	Open	2 & 3	4 & 5
CX486DX4 (3.3v)	3 & 4	Open	1 & 2	2 & 3
AM486DX4 (3v)	3 & 4	Open	Open	Open
(SL)AM486DX4(WB)	3 & 4	Open	2 & 3	4 & 5
SL80486DX4	2 & 3	4 & 5	2 & 3	1 & 2
SL80486DX4(3v)	3 & 4	Open	2 & 3	4 & 5
P24T	2 & 3	Open	2 & 3	1 & 2
CX5X86 (3v)	3 & 4	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage	JP33
3.3v	Open
5v	Pins 1 & 2, 3 & 4, 5 & 6 closed

DMA CHANNEL SELECTION
Channel		JP20	JP21
	1	Pins 1 & 2 closed	Pins 1 & 2 closed
»	3	Pins 2 & 3 closed	Pins 2 & 3 closed

PARALLEL PORT ADDRESS SELECTION
Setting		JP17	JP18	JP19	JP31
»	EPP mode	Open	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	LPT1 (378h)	Any setting	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	ECP/EPP	Open	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	EXT, 2 FDD	Open	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

SERIAL PORT 1 ADDRESS SELECTION
Setting	JP22	JP25
COM1 (3F8h)	Pins 1 & 2 closed	Pins 2 & 3 closed
COM3 (3E8h)	Pins 2 & 3 closed	Pins 1 & 2 closed
COM4 (2E8h)	Pins 1 & 2 closed	Pins 1 & 2 closed
Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORT 2 ADDRESS SELECTION
Setting	JP23	JP24
COM2 (2F8h)	Pins 1 & 2 closed	Pins 2 & 3 closed
COM3 (3E8h)	Pins 1 & 2 closed	Pins 1 & 2 closed
COM4 (2E8h)	Pins 2 & 3 closed	Pins 1 & 2 closed
Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

SCSI/LAN INTERRUPT SELECTION
Setting	JP27	JP28	JP29
On board LAN INT C	2 & 3	1 & 2	Any setting
On board LAN INT B	2 & 3	2 & 3	Any setting
On board SCSI INT C	2 & 3	1 & 2	Any setting
On board SCSI INT B	2 & 3	2 & 3	Any setting
Both LAN/SCSI used (LAN INT C, SCSI INT B)	2 & 3	2 & 3	2 & 3
Both LAN/SCSI used (LAN INT B, SCSI INT C)	2 & 3	1 & 2	1 & 2
No LAN/SCSI	1 & 2	Any setting	Any setting
Note: Pins designated should be in the closed position.