ACERMATE 486/G (A1GX-2) (CACHE)

ACER, INC.

Device Type

Mainboard

Processor

80486/80486(WB)/CX486DX2/IBM486DX2/TI486DX2/

(SL)AM486DX2(SV8T)/(SL)AM486DX2(SV8B)/P24C/P24D/AMDNV8T/

AMDNV8B/CX486DX4/IBM486DX4/(SL)AM486DX4(SV8T)/

(SL)AM486DX4(SV8B)/P24T/CX 5X86/IBM 5X86

Processor Speed

25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz

Chip Set

ALI M1429

Video Chip Set

Cirrus Logic

Maximum Onboard Memory

36MB

Maximum Video Memory

2MB

Cache

128/256KB

BIOS

Unidentified

Dimensions

285mm x 220mm

I/O Options

Ethernet 10BaseT connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot

CONNECTIONS

Purpose

Location

Purpose

Location

Chassis fan power

C1

Ethernet 10BaseT connector

CN6

Feature connector

C2

Floppy drive interface

CN7

VGA port

CN1

IDE interface 2

CN8

Parallel port

CN2

IDE interface 1

CN9

Serial port 2

CN3

VGA feature connector

CN10

Serial port 1

CN4

Riser slot

SL1

PS/2 mouse port

CN5

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

CN11

Unidentified

»

Factory configured - do not alter

J1

Unidentified

»

Factory configured - do not alter

J2

Unidentified

»

Factory configured - do not alter

J3

Unidentified

BIOS type select Acer

JP1

Pins 2 & 3 closed

BIOS type select OEM

JP1

Pins 1 & 2 closed

Password disabled

JP2

Pins 2 & 3 closed

Password enabled

JP2

Pins 1 & 2 closed

Normal boot enabled

JP3

Pins 2 & 3 closed

COM1 boot enabled

JP3

Pins 1 & 2 closed

»

Factory configured - do not alter

JP4

Unidentified

On board I/O enabled

JP6

Pins 2 & 3 closed

On board I/O disabled

JP6

Pins 1 & 2 closed

On board video enabled

JP9

Pins 2 & 3 closed

On board video disabled

JP9

Pins 1 & 2 closed

IDE address select 074H, 078H, 07CH

JP10

Pins 2 & 3 closed

IDE address select 0F4H, 0F8H, 0FCH

JP10

Pins 1 & 2 closed

»

Factory configured - do not alter

JP13

Unidentified

Reset button enabled

JP28

Pins 2 & 3 closed

Reset/green PC button enabled

JP28

Pins 1 & 2 closed

IDE interface enabled

JP29

Pins 2 & 3 closed

IDE interface disabled

JP29

Pins 1 & 2 closed

Feature connector enabled

JP33

Pins 1 & 2 closed

I2C interface enabled

JP33

Pins 2 & 3 closed

IDE LED enabled

JP35

Open

IDE, FDD, CD-ROM LED enabled

JP35

Closed

BIOS type select EPROM

JPX1

Pins 2 & 3 closed

BIOS type select flash

JPX1

Pins 1 & 2 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

4MB

4MB

None

None

4MB

None

(1) 1M x 36

None

8MB

4MB

(1) 1M x 36

None

8MB

None

(1) 2M x 36

None

8MB

None

(1) 1M x 36

(1) 1M x 36

12MB

4MB

(1) 2M x 36

None

12MB

4MB

(1) 1M x 36

(1) 1M x 36

12MB

None

(1) 1M x 36

(1) 2M x 36

16MB

4MB

(1) 2M x 36

(1) 1M x 36

16MB

None

(1) 4M x 36

None

16MB

None

(1) 2M x 36

(1) 2M x 36

20MB

4MB

(1) 4M x 36

None

20MB

None

(1) 1M x 36

(1) 4M x 36

24MB

4MB

(1) 1M x 36

(1) 4M x 36

24MB

None

(1) 2M x 36

(1) 4M x 36

28MB

4MB

(1) 2M x 36

(1) 4M x 36

32MB

None

(1) 4M x 36

(1) 4M x 36

36MB

4MB

(1) 4M x 36

(1) 4M x 36

SIMM JUMPER CONFIGURATION

Size

JP5

On board memory enabled

Pins 2 & 3 closed

On board memory disabled

Pins 1 & 2 closed

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

None

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP30

JP31

128KB

Pins 1 & 2 closed

Pins 1 & 2 closed

256KB

Pins 2 & 3 closed

Pins 2 & 3 closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

512KB

(1) 256K x 16

None

None

1MB

(1) 256K x 16

(1) 256K x 16

None

2MB

(1) 256K x 16

(1) 256K x 16

(2) 256K x 16

CPU SPEED SELECTION

Speed

JP11

JP12

25MHz

Pins 1 & 5 closed

Pins 1 & 2 closed

33MHz

Pins 1 & 5 closed

Pins 1 & 2 closed

40MHz

Pins 2 & 6 closed

Pins 2 & 3 closed

50iMHz

Pins 1 & 5 closed

Pins 1 & 2 closed

66iMHz

Pins 1 & 5 closed

Pins 1 & 2 closed

75iMHz

Pins 1 & 5 closed

Pins 1 & 2 closed

100iMHz

Pins 1 & 5 closed

Pins 1 & 2 closed

CPU TYPE SELECTION

Type

JP17A

JP17B

JP17C

JP17D

JP17E

80486

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

80486 (WB)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

CX486DX2 *

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

IBM486DX2 *

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

TI486DX2 *

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

CX486DX2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

IBM486DX2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

TI486DX2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

(SL)AM486DX2(SV8T)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

(SL)AM486DX2(SV8B)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

P24C

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

P24D

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

AMD NV8T

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

AMD NV8B

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

CX486DX4

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

IBM486DX4

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

(SL)AM486DX4(SV8T)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

(SL)AM486DX4(SV8B)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

P24T

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

CX 5X86

1 & 2

2 & 3

2 & 3

Open

Open

IBM 5X86

1 & 2

2 & 3

2 & 3

Open

Open

Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)

Type

JP17F

JP17G

JP18

JP19

JP26A

80486

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

80486 (WB)

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

CX486DX2 *

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

IBM486DX2 *

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

TI486DX2 *

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

CX486DX2

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

IBM486DX2

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

TI486DX2

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

(SL)AM486DX2(SV8T)

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

(SL)AM486DX2(SV8B)

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

P24C

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

P24D

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

AMD NV8T

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

AMD NV8B

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

CX486DX4

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

IBM486DX4

1 & 2

1 & 2

2 & 3

1 & 2

2 & 3

(SL)AM486DX4(SV8T)

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

(SL)AM486DX4(SV8B)

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

P24T

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

CX 5X86

Open

Open

Open

1 & 2

Open

IBM 5X86

Open

Open

Open

1 & 2

Open

Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)

Type

JP26B

JP26C

JP26D

JP26E

JP26F

80486

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

80486 (WB)

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

CX486DX2 *

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

IBM486DX2 *

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

TI486DX2 *

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

CX486DX2

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

IBM486DX2

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

TI486DX2

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

(SL)AM486DX2(SV8T)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

(SL)AM486DX2(SV8B)

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

P24C

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

P24D

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

AMD NV8T

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

AMD NV8B

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

CX486DX4

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

IBM486DX4

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

(SL)AM486DX4(SV8T)

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

(SL)AM486DX4(SV8B)

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

P24T

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

CX 5X86

Open

Open

1 & 2

1 & 2

2 & 3

IBM 5X86

Open

Open

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)

Type

JP26G

JP26H

JP27

JP32

80486

2 & 3

2 & 3

3 & 4

1 & 2

80486 (WB)

1 & 2

1 & 2

3 & 4

1 & 2

CX486DX2 *

2 & 3

2 & 3

3 & 4

1 & 2

IBM486DX2 *

2 & 3

2 & 3

3 & 4

1 & 2

TI486DX2 *

2 & 3

2 & 3

3 & 4

1 & 2

CX486DX2

2 & 3

2 & 3

3 & 4

2 & 3

IBM486DX2

2 & 3

2 & 3

3 & 4

2 & 3

TI486DX2

2 & 3

2 & 3

3 & 4

2 & 3

(SL)AM486DX2 (SV8T)

2 & 3

2 & 3

2 & 3

1 & 2

(SL)AM486DX2 (SV8B)

1 & 2

1 & 2

2 & 3

1 & 2

P24C

2 & 3

2 & 3

3 & 4

1 & 2

P24D

1 & 2

1 & 2

3 & 4

1 & 2

AMD NV8T

2 & 3

2 & 3

3 & 4

1 & 2

AMD NV8B

2 & 3

2 & 3

3 & 4

1 & 2

CX486DX4

2 & 3

2 & 3

3 & 4

1 & 2

IBM486DX4

2 & 3

2 & 3

3 & 4

1 & 2

(SL)AM486DX4 (SV8T)

2 & 3

2 & 3

3 & 4

1 & 2

(SL)AM486DX4 (SV8B)

1 & 2

1 & 2

3 & 4

1 & 2

P24T

1 & 2

1 & 2

1 & 2

1 & 2

CX 5X86

1 & 2

Open

3 & 4

1 & 2

IBM 5X86

1 & 2

Open

3 & 4

1 & 2

Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)

Type

JP36A

JP36B

JP36C

JP36D

80486

2 & 3

2 & 3

2 & 3

2 & 3

80486 (WB)

2 & 3

2 & 3

2 & 3

2 & 3

CX486DX2 *

1 & 2

1 & 2

1 & 2

1 & 2

IBM486DX2 *

1 & 2

1 & 2

1 & 2

1 & 2

TI486DX2 *

1 & 2

1 & 2

1 & 2

1 & 2

CX486DX2

1 & 2

1 & 2

1 & 2

1 & 2

IBM486DX2

1 & 2

1 & 2

1 & 2

1 & 2

TI486DX2

1 & 2

1 & 2

1 & 2

1 & 2

(SL)AM486DX2 (SV8T)

1 & 2

1 & 2

1 & 2

1 & 2

(SL)AM486DX2 (SV8B)

1 & 2

1 & 2

1 & 2

1 & 2

P24C

2 & 3

2 & 3

2 & 3

2 & 3

P24D

2 & 3

2 & 3

2 & 3

2 & 3

AMD NV8T

2 & 3

2 & 3

2 & 3

2 & 3

AMD NV8B

2 & 3

2 & 3

2 & 3

2 & 3

CX486DX4

1 & 2

1 & 2

1 & 2

1 & 2

IBM486DX4

1 & 2

1 & 2

1 & 2

1 & 2

(SL)AM486DX4 (SV8T)

1 & 2

1 & 2

1 & 2

1 & 2

(SL)AM486DX4 (SV8B)

1 & 2

1 & 2

1 & 2

1 & 2

P24T

2 & 3

2 & 3

2 & 3

2 & 3

CX 5X86

1 & 2

1 & 2

1 & 2

1 & 2

IBM 5X86

1 & 2

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

DMA CHANNEL SELECTION

Channel

JP7

JP8

1

Pins 1 & 2 closed

Pins 1 & 2 closed

3

Pins 2 & 3 closed

Pins 2 & 3 closed

Device Type	Mainboard
Processor	80486/80486(WB)/CX486DX2/IBM486DX2/TI486DX2/ (SL)AM486DX2(SV8T)/(SL)AM486DX2(SV8B)/P24C/P24D/AMDNV8T/ AMDNV8B/CX486DX4/IBM486DX4/(SL)AM486DX4(SV8T)/ (SL)AM486DX4(SV8B)/P24T/CX 5X86/IBM 5X86
Processor Speed	25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Chip Set	ALI M1429
Video Chip Set	Cirrus Logic
Maximum Onboard Memory	36MB
Maximum Video Memory	2MB
Cache	128/256KB
BIOS	Unidentified
Dimensions	285mm x 220mm
I/O Options	Ethernet 10BaseT connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot

CONNECTIONS
Purpose	Location	Purpose	Location
Chassis fan power	C1	Ethernet 10BaseT connector	CN6
Feature connector	C2	Floppy drive interface	CN7
VGA port	CN1	IDE interface 2	CN8
Parallel port	CN2	IDE interface 1	CN9
Serial port 2	CN3	VGA feature connector	CN10
Serial port 1	CN4	Riser slot	SL1
PS/2 mouse port	CN5

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	CN11	Unidentified
»	Factory configured - do not alter	J1	Unidentified
»	Factory configured - do not alter	J2	Unidentified
»	Factory configured - do not alter	J3	Unidentified
	BIOS type select Acer	JP1	Pins 2 & 3 closed
	BIOS type select OEM	JP1	Pins 1 & 2 closed
	Password disabled	JP2	Pins 2 & 3 closed
	Password enabled	JP2	Pins 1 & 2 closed
	Normal boot enabled	JP3	Pins 2 & 3 closed
	COM1 boot enabled	JP3	Pins 1 & 2 closed
»	Factory configured - do not alter	JP4	Unidentified
	On board I/O enabled	JP6	Pins 2 & 3 closed
	On board I/O disabled	JP6	Pins 1 & 2 closed
	On board video enabled	JP9	Pins 2 & 3 closed
	On board video disabled	JP9	Pins 1 & 2 closed
	IDE address select 074H, 078H, 07CH	JP10	Pins 2 & 3 closed
	IDE address select 0F4H, 0F8H, 0FCH	JP10	Pins 1 & 2 closed
»	Factory configured - do not alter	JP13	Unidentified
	Reset button enabled	JP28	Pins 2 & 3 closed
	Reset/green PC button enabled	JP28	Pins 1 & 2 closed
	IDE interface enabled	JP29	Pins 2 & 3 closed
	IDE interface disabled	JP29	Pins 1 & 2 closed
	Feature connector enabled	JP33	Pins 1 & 2 closed
	I2C interface enabled	JP33	Pins 2 & 3 closed
	IDE LED enabled	JP35	Open
	IDE, FDD, CD-ROM LED enabled	JP35	Closed
	BIOS type select EPROM	JPX1	Pins 2 & 3 closed
	BIOS type select flash	JPX1	Pins 1 & 2 closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
4MB	4MB	None	None
4MB	None	(1) 1M x 36	None
8MB	4MB	(1) 1M x 36	None
8MB	None	(1) 2M x 36	None
8MB	None	(1) 1M x 36	(1) 1M x 36
12MB	4MB	(1) 2M x 36	None
12MB	4MB	(1) 1M x 36	(1) 1M x 36
12MB	None	(1) 1M x 36	(1) 2M x 36
16MB	4MB	(1) 2M x 36	(1) 1M x 36
16MB	None	(1) 4M x 36	None
16MB	None	(1) 2M x 36	(1) 2M x 36
20MB	4MB	(1) 4M x 36	None
20MB	None	(1) 1M x 36	(1) 4M x 36
24MB	4MB	(1) 1M x 36	(1) 4M x 36
24MB	None	(1) 2M x 36	(1) 4M x 36
28MB	4MB	(1) 2M x 36	(1) 4M x 36
32MB	None	(1) 4M x 36	(1) 4M x 36
36MB	4MB	(1) 4M x 36	(1) 4M x 36

SIMM JUMPER CONFIGURATION
Size	JP5
On board memory enabled	Pins 2 & 3 closed
On board memory disabled	Pins 1 & 2 closed

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 32K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP30	JP31
128KB	Pins 1 & 2 closed	Pins 1 & 2 closed
256KB	Pins 2 & 3 closed	Pins 2 & 3 closed

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
512KB	(1) 256K x 16	None	None
1MB	(1) 256K x 16	(1) 256K x 16	None
2MB	(1) 256K x 16	(1) 256K x 16	(2) 256K x 16

CPU SPEED SELECTION
Speed	JP11	JP12
25MHz	Pins 1 & 5 closed	Pins 1 & 2 closed
33MHz	Pins 1 & 5 closed	Pins 1 & 2 closed
40MHz	Pins 2 & 6 closed	Pins 2 & 3 closed
50iMHz	Pins 1 & 5 closed	Pins 1 & 2 closed
66iMHz	Pins 1 & 5 closed	Pins 1 & 2 closed
75iMHz	Pins 1 & 5 closed	Pins 1 & 2 closed
100iMHz	Pins 1 & 5 closed	Pins 1 & 2 closed

CPU TYPE SELECTION
Type	JP17A	JP17B	JP17C	JP17D	JP17E
80486	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
80486 (WB)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
CX486DX2 *	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
IBM486DX2 *	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
TI486DX2 *	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
CX486DX2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
IBM486DX2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
TI486DX2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
(SL)AM486DX2(SV8T)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
(SL)AM486DX2(SV8B)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
P24C	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
P24D	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
AMD NV8T	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
AMD NV8B	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
CX486DX4	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
IBM486DX4	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
(SL)AM486DX4(SV8T)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
(SL)AM486DX4(SV8B)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
P24T	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
CX 5X86	1 & 2	2 & 3	2 & 3	Open	Open
IBM 5X86	1 & 2	2 & 3	2 & 3	Open	Open
Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)
Type	JP17F	JP17G	JP18	JP19	JP26A
80486	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
80486 (WB)	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
CX486DX2 *	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
IBM486DX2 *	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
TI486DX2 *	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
CX486DX2	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
IBM486DX2	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
TI486DX2	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
(SL)AM486DX2(SV8T)	2 & 3	2 & 3	2 & 3	1 & 2	2 & 3
(SL)AM486DX2(SV8B)	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
P24C	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
P24D	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
AMD NV8T	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
AMD NV8B	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
CX486DX4	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
IBM486DX4	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
(SL)AM486DX4(SV8T)	2 & 3	2 & 3	2 & 3	1 & 2	2 & 3
(SL)AM486DX4(SV8B)	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
P24T	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
CX 5X86	Open	Open	Open	1 & 2	Open
IBM 5X86	Open	Open	Open	1 & 2	Open
Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)
Type	JP26B	JP26C	JP26D	JP26E	JP26F
80486	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
80486 (WB)	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
CX486DX2 *	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
IBM486DX2 *	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
TI486DX2 *	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
CX486DX2	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
IBM486DX2	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
TI486DX2	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
(SL)AM486DX2(SV8T)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
(SL)AM486DX2(SV8B)	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
P24C	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
P24D	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
AMD NV8T	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
AMD NV8B	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
CX486DX4	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
IBM486DX4	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
(SL)AM486DX4(SV8T)	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
(SL)AM486DX4(SV8B)	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
P24T	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
CX 5X86	Open	Open	1 & 2	1 & 2	2 & 3
IBM 5X86	Open	Open	1 & 2	1 & 2	2 & 3
Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)
Type	JP26G	JP26H	JP27	JP32
80486	2 & 3	2 & 3	3 & 4	1 & 2
80486 (WB)	1 & 2	1 & 2	3 & 4	1 & 2
CX486DX2 *	2 & 3	2 & 3	3 & 4	1 & 2
IBM486DX2 *	2 & 3	2 & 3	3 & 4	1 & 2
TI486DX2 *	2 & 3	2 & 3	3 & 4	1 & 2
CX486DX2	2 & 3	2 & 3	3 & 4	2 & 3
IBM486DX2	2 & 3	2 & 3	3 & 4	2 & 3
TI486DX2	2 & 3	2 & 3	3 & 4	2 & 3
(SL)AM486DX2 (SV8T)	2 & 3	2 & 3	2 & 3	1 & 2
(SL)AM486DX2 (SV8B)	1 & 2	1 & 2	2 & 3	1 & 2
P24C	2 & 3	2 & 3	3 & 4	1 & 2
P24D	1 & 2	1 & 2	3 & 4	1 & 2
AMD NV8T	2 & 3	2 & 3	3 & 4	1 & 2
AMD NV8B	2 & 3	2 & 3	3 & 4	1 & 2
CX486DX4	2 & 3	2 & 3	3 & 4	1 & 2
IBM486DX4	2 & 3	2 & 3	3 & 4	1 & 2
(SL)AM486DX4 (SV8T)	2 & 3	2 & 3	3 & 4	1 & 2
(SL)AM486DX4 (SV8B)	1 & 2	1 & 2	3 & 4	1 & 2
P24T	1 & 2	1 & 2	1 & 2	1 & 2
CX 5X86	1 & 2	Open	3 & 4	1 & 2
IBM 5X86	1 & 2	Open	3 & 4	1 & 2
Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

CPU TYPE SELECTION (CON’T)
Type	JP36A	JP36B	JP36C	JP36D
80486	2 & 3	2 & 3	2 & 3	2 & 3
80486 (WB)	2 & 3	2 & 3	2 & 3	2 & 3
CX486DX2 *	1 & 2	1 & 2	1 & 2	1 & 2
IBM486DX2 *	1 & 2	1 & 2	1 & 2	1 & 2
TI486DX2 *	1 & 2	1 & 2	1 & 2	1 & 2
CX486DX2	1 & 2	1 & 2	1 & 2	1 & 2
IBM486DX2	1 & 2	1 & 2	1 & 2	1 & 2
TI486DX2	1 & 2	1 & 2	1 & 2	1 & 2
(SL)AM486DX2 (SV8T)	1 & 2	1 & 2	1 & 2	1 & 2
(SL)AM486DX2 (SV8B)	1 & 2	1 & 2	1 & 2	1 & 2
P24C	2 & 3	2 & 3	2 & 3	2 & 3
P24D	2 & 3	2 & 3	2 & 3	2 & 3
AMD NV8T	2 & 3	2 & 3	2 & 3	2 & 3
AMD NV8B	2 & 3	2 & 3	2 & 3	2 & 3
CX486DX4	1 & 2	1 & 2	1 & 2	1 & 2
IBM486DX4	1 & 2	1 & 2	1 & 2	1 & 2
(SL)AM486DX4 (SV8T)	1 & 2	1 & 2	1 & 2	1 & 2
(SL)AM486DX4 (SV8B)	1 & 2	1 & 2	1 & 2	1 & 2
P24T	2 & 3	2 & 3	2 & 3	2 & 3
CX 5X86	1 & 2	1 & 2	1 & 2	1 & 2
IBM 5X86	1 & 2	1 & 2	1 & 2	1 & 2
Note: Pins designated should be in the closed position. * = 3.3v, 3.45v CPU.

DMA CHANNEL SELECTION
Channel	JP7	JP8
1	Pins 1 & 2 closed	Pins 1 & 2 closed
3	Pins 2 & 3 closed	Pins 2 & 3 closed