GMB-486UNP Motherboard Settings and Configuration

ROBOTECH, INC.

GMB-486UNP

Processor
CX486S/SL80486SX/80486SX/AM486DX-PLUS/AM486DXL/CX486DX/ SL80486DX/80486DX/AM486DX2-PLUS/AM486DXL2/CX486DX2/ SL80486DX2/80486DX2/80486DX4/P24D/ Pentium Overdrive
Processor Speed
20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
128MB
Cache
128/256/512KB
BIOS
Award
Dimensions
260mm x 220mm
I/O Options
32-bit VESA local bus slots (3), green PC connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
J1
Reset switch
J6
Turbo switch
J3
Power LED & keylock
J7
Turbo LED
J4
Green PC connector
JP27
Speaker
J5
32-bit VESA local bus slots
SL1 - SL3

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
CMOS memory normal operation
JP16
pins 2 & 3 closed

CMOS memory clear
JP16
pins 1 & 2 closed
»
Monitor type select monochrome/EGA/VGA
JP17
Open

Monitor type select EGA
JP17
Closed
»
CPU clock delay select CLKIN delay for CPUCLK
JP20
pins 2 & 3 closed

CPU clock delay select CLKIN and CPUCLK same phase
JP20
pins 1 & 2 closed
»
Green PC break switch enabled
JP26
Open

Green PC break switch disabled
JP26
Closed
»
Factory configured - do not alter
JP32
pins 1 & 2 closed
»
Factory configured - do not alter
JP35
pins 2 & 3 closed
»
Keyboard controller clock select asynchronous
JPX1
Open

Keyboard controller clock select synchronous
JPX1
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
NONE
NONE
NONE
2MB
(1) 256K x 36
(1) 256K x 36
NONE
NONE
2MB
(1) 512K x 36
NONE
NONE
NONE
4MB
(1) 256K x 36
(1) 256K x 36
(1) 512K x 36
NONE
4MB
(1) 512K x 36
(1) 512K x 36
NONE
NONE
4MB
(1) 1M x 36
NONE
NONE
NONE
5MB
(1) 256K x 36
(1) 1M x 36
NONE
NONE
6MB
(1) 256K x 36
(1) 256K x 36
(1) 1M x 36
NONE
6MB
(1) 512K x 36
(1) 1M x 36
NONE
NONE
8MB
(1) 256K x 36
(1) 256K x 36
(1) 512K x 36
(1) 1M x 36
8MB
(1) 512K x 36
(1) 512K x 36
(1) 1M x 36
NONE
8MB
(1) 1M x 36
(1) 1M x 36
NONE
NONE
8MB
(1) 2M x 36
NONE
NONE
NONE
10MB
(1) 256K x 36
(1) 256K x 36
(1) 1M x 36
(1) 1M x 36
12MB
(1) 512K x 36
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
NONE
12MB
(1) 1M x 36
(1) 2M x 36
NONE
NONE
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 2M x 36
(1) 2M x 36
NONE
NONE
16MB
(1) 4M x 36
NONE
NONE
NONE
16MB
(1) 1M x 36
(1) 1M x 36
(1) 2M x 36
NONE
17MB
(1) 256K x 36
(1) 4M x 36
NONE
NONE
18MB
(1) 256K x 36
(1) 256K x 36
(1) 4M x 36
NONE
18MB
(1) 512K x 36
(1) 4M x 36
NONE
NONE
20MB
(1) 512K x 36
(1) 512K x 36
(1) 4M x 36
NONE
20MB
(1) 1M x 36
(1) 4M x 36
NONE
NONE
20MB
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
NONE
24MB
(1) 512K x 36
(1) 512K x 36
(1) 1M x 36
(1) 4M x 36
24MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
NONE

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
24MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
NONE
24MB
(1) 1M x 36
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
24MB
(1) 2M x 36
(1) 4M x 36
NONE
NONE
28MB
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
32MB
(1) 4M x 36
(1) 4M x 36
NONE
NONE
32MB
(1) 8M x 36
NONE
NONE
NONE
32MB
(1) 2M x 36
(1) 2M x 36
(1) 4M x 36
NONE
32MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
36MB
(1) 512K x 36
(1) 512K x 36
(1) 4M x 36
(1) 4M x 36
36MB
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
NONE
36MB
(1) 1M x 36
(1) 8M x 36
NONE
NONE
40MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
40MB
(1) 1M x 36
(1) 1M x 36
(1) 8M x 36
NONE
40MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
(1) 4M x 36
48MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
NONE
48MB
(1) 4M x 36
(1) 8M x 36
NONE
NONE
48MB
(1) 2M x 36
(1) 2M x 36
(1) 4M x 36
(1) 4M x 36
48MB
(1) 2M x 36
(1) 2M x 36
(1) 8M x 36
NONE
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 16M x 36
NONE
NONE
NONE
64MB
(1) 4M x 36
(1) 4M x 36
(1) 8M x 36
NONE
64MB
(1) 8M x 36
(1) 8M x 36
NONE
NONE
65MB
(1) 256K x 36
(1) 16M x 36
NONE
NONE
68MB
(1) 1M x 36
(1) 16M x 36
NONE
NONE
68MB
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
NONE
72MB
(1) 1M x 36
(1) 1M x 36
(1) 16M x 36
NONE
72MB
(1) 1M x 36
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
80MB
(1) 4M x 36
(1) 16M x 36
NONE
NONE
80MB
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
NONE
80MB
(1) 2M x 36
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
96MB
(1) 4M x 36
(1) 4M x 36
(1) 16M x 36
NONE
96MB
(1) 4M x 36
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
96MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
NONE
128MB
(1) 16M x 36
(1) 16M x 36
NONE
NONE
128MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
128KB
(4) 32K x 8
NONE
(1) 8K x 8
256KB
(4) 32K x 8
(4) 32K x 8
(1) 32K x 8
256KB
(4) 64K x 8
NONE
(1) 32K x 8
512KB
(4) 128K x 8
NONE
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP1
JP2
JP3
JP4
JP33
128KB
1 & 2
1 & 2
1 & 2, 3 & 4
1 & 2
2 & 3
256KB
2 & 3
2 & 3
2 & 3, 4 & 5
1 & 2
2 & 3
256KB
1 & 2
2 & 3
1 & 2, 3 & 4
1 & 2
1 & 2
512KB
1 & 2
2 & 3
1 & 2, 3 & 4
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
JP8
JP10
JP11
JP12
JP13
CX486S
2 & 3
2 & 3
Open
2 & 3, 4 & 5
Open
SL80486SX
2 & 3
2 & 3
Open
3 & 4
1 & 2
80486SX
2 & 3
2 & 3
Open
Open
Open
AM486DX-PLUS
1 & 2, 3 & 4
2 & 3
3 & 4
3 & 4
4 & 5
AM486DXL
1 & 2, 3 & 4
2 & 3
1 & 2, 3 & 4
Open
Open
CX486DX
1 & 2, 3 & 4
2 & 3
3 & 4
2 & 3
Open
SL80486DX
1 & 2, 3 & 4
2 & 3
3 & 4
3 & 4
1 & 2
80486DX
1 & 2, 3 & 4
2 & 3
3 & 4
Open
Open
AM486DX2-PLUS
1 & 2, 3 & 4
2 & 3
3 & 4
3 & 4
4 & 5
AM486DXL2
1 & 2, 3 & 4
2 & 3
1 & 2, 3 & 4
Open
Open
CX486DX2
1 & 2, 3 & 4
2 & 3
3 & 4
2 & 3
Open
SL80486DX2
1 & 2, 3 & 4
2 & 3
3 & 4
3 & 4
1 & 2
80486DX2
1 & 2, 3 & 4
2 & 3
3 & 4
Open
Open
80486DX4
1 & 2, 3 & 4
2 & 3
3 & 4
3 & 4
1 & 2
P24D
1 & 2, 3 & 4
1 & 2
3 & 4
1 & 2, 3 & 4
2 & 3
Pentium Overdrive
1 & 2, 3 & 4
1 & 2
2 & 3
3 & 4
Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP14
JP15
JP21
JP22
JP24
CX486S
1 & 2, 3 & 4
2 & 3
1 & 2
2 & 3
2 & 3
SL80486SX
2 & 3
4 & 5
2 & 3
1 & 2
Open
80486SX
Open
Open
2 & 3
1 & 2
Open
AM486DX-PLUS
2 & 3
4 & 5
1 & 2
1 & 2
Open
AM486DXL
Open
Open
1 & 2
2 & 3
3 & 4
CX486DX
1 & 2
2 & 3
1 & 2
2 & 3
2 & 3
SL80486DX
2 & 3
4 & 5
2 & 3
1 & 2
Open
80486DX
Open
Open
2 & 3
1 & 2
Open
AM486DX2-PLUS
2 & 3
4 & 5
1 & 2
1 & 2
Open
AM486DXL2
Open
Open
1 & 2
2 & 3
3 & 4
CX486DX2
1 & 2
2 & 3
1 & 2
2 & 3
2 & 3
SL80486DX2
2 & 3
4 & 5
2 & 3
1 & 2
Open
80486DX2
Open
Open
2 & 3
1 & 2
Open
80486DX4
2 & 3
4 & 5
2 & 3
1 & 2
Open
P24D
2 & 3
4 & 5
1 & 2
1 & 2
Open
Pentium Overdrive
2 & 3
1 & 2
1 & 2
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP25
JP30
JP31
JP34
JP36
CX486S
2 & 3
Open
Open
1 & 2
Closed
SL80486SX
Open
Open
Open
1 & 2
Closed
80486SX
Open
Open
Open
Open
Closed
AM486DX-PLUS
1 & 2
Open
2 & 3
1 & 2
Closed
AM486DXL
Open
Open
Open
2 & 3
Closed
CX486DX
2 & 3
Open
Open
1 & 2
Closed
SL80486DX
Open
Open
Open
1 & 2
Closed
80486DX
Open
Open
Open
Open
Closed
AM486DX2-PLUS
1 & 2
Open
2 & 3
1 & 2
Closed
AM486DXL2
Open
Open
Open
2 & 3
Closed
CX486DX2
2 & 3
Open
Open
1 & 2
Closed
SL80486DX2
Open
Open
Open
1 & 2
Closed
80486DX2
Open
Open
Open
Open
Closed
80486DX4
3 & 4
Open
Open
1 & 2
Open
P24D
1 & 2
Closed
1 & 2
1 & 2
Closed
Pentium Overdrive
1 & 2
Open
Open
1 & 2
Closed
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (AV9107)
Speed
JP5
JP6
JP7
20MHz
Closed
Open
Closed
25MHz
Closed
Closed
Open
33MHz
Open
Closed
Closed
40MHz
Closed
Open
Open
50iMHz
Closed
Closed
Open
50MHz
Open
Open
Closed
66iMHz
Open
Closed
Closed
75iMHz
Closed
Closed
Open
100iMHz
Open
Closed
Closed

CPU SPEED CONFIGURATION (MX-8315)
Speed
JP5
JP6
JP7
20MHz
Open
Open
Open
25MHz
Open
Closed
Open
33MHz
Closed
Closed
Closed
40MHz
Open
Closed
Closed
50iMHz
Open
Closed
Open
50MHz
Closed
Open
Open
66iMHz
Closed
Closed
Closed
75iMHz
Open
Closed
Open
100iMHz
Closed
Closed
Closed

VESA WAIT STATE CONFIGURATION
Wait states
JP28
0 wait states
pins 1 & 2 closed
1 wait state
pins 2 & 3 closed

BUS SPEED CONFIGURATION
CPU speed
JP29
<= 33MHz
pins 1 & 2 closed
> 33MHz
pins 2 & 3 closed

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Processor	CX486S/SL80486SX/80486SX/AM486DX-PLUS/AM486DXL/CX486DX/ SL80486DX/80486DX/AM486DX2-PLUS/AM486DXL2/CX486DX2/ SL80486DX2/80486DX2/80486DX4/P24D/ Pentium Overdrive
Processor Speed	20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	128MB
Cache	128/256/512KB
BIOS	Award
Dimensions	260mm x 220mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Reset switch	J6
Turbo switch	J3	Power LED & keylock	J7
Turbo LED	J4	Green PC connector	JP27
Speaker	J5	32-bit VESA local bus slots	SL1 - SL3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	JP16	pins 2 & 3 closed
	CMOS memory clear	JP16	pins 1 & 2 closed
»	Monitor type select monochrome/EGA/VGA	JP17	Open
	Monitor type select EGA	JP17	Closed
»	CPU clock delay select CLKIN delay for CPUCLK	JP20	pins 2 & 3 closed
	CPU clock delay select CLKIN and CPUCLK same phase	JP20	pins 1 & 2 closed
»	Green PC break switch enabled	JP26	Open
	Green PC break switch disabled	JP26	Closed
»	Factory configured - do not alter	JP32	pins 1 & 2 closed
»	Factory configured - do not alter	JP35	pins 2 & 3 closed
»	Keyboard controller clock select asynchronous	JPX1	Open
	Keyboard controller clock select synchronous	JPX1	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	NONE	NONE	NONE
2MB	(1) 256K x 36	(1) 256K x 36	NONE	NONE
2MB	(1) 512K x 36	NONE	NONE	NONE
4MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	NONE
4MB	(1) 512K x 36	(1) 512K x 36	NONE	NONE
4MB	(1) 1M x 36	NONE	NONE	NONE
5MB	(1) 256K x 36	(1) 1M x 36	NONE	NONE
6MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	NONE
6MB	(1) 512K x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	(1) 1M x 36
8MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	NONE
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 2M x 36	NONE	NONE	NONE
10MB	(1) 256K x 36	(1) 256K x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	NONE
12MB	(1) 1M x 36	(1) 2M x 36	NONE	NONE
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 2M x 36	(1) 2M x 36	NONE	NONE
16MB	(1) 4M x 36	NONE	NONE	NONE
16MB	(1) 1M x 36	(1) 1M x 36	(1) 2M x 36	NONE
17MB	(1) 256K x 36	(1) 4M x 36	NONE	NONE
18MB	(1) 256K x 36	(1) 256K x 36	(1) 4M x 36	NONE
18MB	(1) 512K x 36	(1) 4M x 36	NONE	NONE
20MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	NONE
20MB	(1) 1M x 36	(1) 4M x 36	NONE	NONE
20MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36	NONE
24MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 4M x 36
24MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	NONE

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	NONE
24MB	(1) 1M x 36	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36
24MB	(1) 2M x 36	(1) 4M x 36	NONE	NONE
28MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 4M x 36	(1) 4M x 36	NONE	NONE
32MB	(1) 8M x 36	NONE	NONE	NONE
32MB	(1) 2M x 36	(1) 2M x 36	(1) 4M x 36	NONE
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
36MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36
36MB	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36	NONE
36MB	(1) 1M x 36	(1) 8M x 36	NONE	NONE
40MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36
40MB	(1) 1M x 36	(1) 1M x 36	(1) 8M x 36	NONE
40MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 4M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	NONE
48MB	(1) 4M x 36	(1) 8M x 36	NONE	NONE
48MB	(1) 2M x 36	(1) 2M x 36	(1) 4M x 36	(1) 4M x 36
48MB	(1) 2M x 36	(1) 2M x 36	(1) 8M x 36	NONE
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 16M x 36	NONE	NONE	NONE
64MB	(1) 4M x 36	(1) 4M x 36	(1) 8M x 36	NONE
64MB	(1) 8M x 36	(1) 8M x 36	NONE	NONE
65MB	(1) 256K x 36	(1) 16M x 36	NONE	NONE
68MB	(1) 1M x 36	(1) 16M x 36	NONE	NONE
68MB	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36	NONE
72MB	(1) 1M x 36	(1) 1M x 36	(1) 16M x 36	NONE
72MB	(1) 1M x 36	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36
80MB	(1) 4M x 36	(1) 16M x 36	NONE	NONE
80MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	NONE
80MB	(1) 2M x 36	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36
96MB	(1) 4M x 36	(1) 4M x 36	(1) 16M x 36	NONE
96MB	(1) 4M x 36	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	NONE
128MB	(1) 16M x 36	(1) 16M x 36	NONE	NONE
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	NONE	(1) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8
256KB	(4) 64K x 8	NONE	(1) 32K x 8
512KB	(4) 128K x 8	NONE	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP1	JP2	JP3	JP4	JP33
128KB	1 & 2	1 & 2	1 & 2, 3 & 4	1 & 2	2 & 3
256KB	2 & 3	2 & 3	2 & 3, 4 & 5	1 & 2	2 & 3
256KB	1 & 2	2 & 3	1 & 2, 3 & 4	1 & 2	1 & 2
512KB	1 & 2	2 & 3	1 & 2, 3 & 4	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP8	JP10	JP11	JP12	JP13
CX486S	2 & 3	2 & 3	Open	2 & 3, 4 & 5	Open
SL80486SX	2 & 3	2 & 3	Open	3 & 4	1 & 2
80486SX	2 & 3	2 & 3	Open	Open	Open
AM486DX-PLUS	1 & 2, 3 & 4	2 & 3	3 & 4	3 & 4	4 & 5
AM486DXL	1 & 2, 3 & 4	2 & 3	1 & 2, 3 & 4	Open	Open
CX486DX	1 & 2, 3 & 4	2 & 3	3 & 4	2 & 3	Open
SL80486DX	1 & 2, 3 & 4	2 & 3	3 & 4	3 & 4	1 & 2
80486DX	1 & 2, 3 & 4	2 & 3	3 & 4	Open	Open
AM486DX2-PLUS	1 & 2, 3 & 4	2 & 3	3 & 4	3 & 4	4 & 5
AM486DXL2	1 & 2, 3 & 4	2 & 3	1 & 2, 3 & 4	Open	Open
CX486DX2	1 & 2, 3 & 4	2 & 3	3 & 4	2 & 3	Open
SL80486DX2	1 & 2, 3 & 4	2 & 3	3 & 4	3 & 4	1 & 2
80486DX2	1 & 2, 3 & 4	2 & 3	3 & 4	Open	Open
80486DX4	1 & 2, 3 & 4	2 & 3	3 & 4	3 & 4	1 & 2
P24D	1 & 2, 3 & 4	1 & 2	3 & 4	1 & 2, 3 & 4	2 & 3
Pentium Overdrive	1 & 2, 3 & 4	1 & 2	2 & 3	3 & 4	Open
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP14	JP15	JP21	JP22	JP24
CX486S	1 & 2, 3 & 4	2 & 3	1 & 2	2 & 3	2 & 3
SL80486SX	2 & 3	4 & 5	2 & 3	1 & 2	Open
80486SX	Open	Open	2 & 3	1 & 2	Open
AM486DX-PLUS	2 & 3	4 & 5	1 & 2	1 & 2	Open
AM486DXL	Open	Open	1 & 2	2 & 3	3 & 4
CX486DX	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
SL80486DX	2 & 3	4 & 5	2 & 3	1 & 2	Open
80486DX	Open	Open	2 & 3	1 & 2	Open
AM486DX2-PLUS	2 & 3	4 & 5	1 & 2	1 & 2	Open
AM486DXL2	Open	Open	1 & 2	2 & 3	3 & 4
CX486DX2	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
SL80486DX2	2 & 3	4 & 5	2 & 3	1 & 2	Open
80486DX2	Open	Open	2 & 3	1 & 2	Open
80486DX4	2 & 3	4 & 5	2 & 3	1 & 2	Open
P24D	2 & 3	4 & 5	1 & 2	1 & 2	Open
Pentium Overdrive	2 & 3	1 & 2	1 & 2	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP25	JP30	JP31	JP34	JP36
CX486S	2 & 3	Open	Open	1 & 2	Closed
SL80486SX	Open	Open	Open	1 & 2	Closed
80486SX	Open	Open	Open	Open	Closed
AM486DX-PLUS	1 & 2	Open	2 & 3	1 & 2	Closed
AM486DXL	Open	Open	Open	2 & 3	Closed
CX486DX	2 & 3	Open	Open	1 & 2	Closed
SL80486DX	Open	Open	Open	1 & 2	Closed
80486DX	Open	Open	Open	Open	Closed
AM486DX2-PLUS	1 & 2	Open	2 & 3	1 & 2	Closed
AM486DXL2	Open	Open	Open	2 & 3	Closed
CX486DX2	2 & 3	Open	Open	1 & 2	Closed
SL80486DX2	Open	Open	Open	1 & 2	Closed
80486DX2	Open	Open	Open	Open	Closed
80486DX4	3 & 4	Open	Open	1 & 2	Open
P24D	1 & 2	Closed	1 & 2	1 & 2	Closed
Pentium Overdrive	1 & 2	Open	Open	1 & 2	Closed
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION (AV9107)
Speed	JP5	JP6	JP7
20MHz	Closed	Open	Closed
25MHz	Closed	Closed	Open
33MHz	Open	Closed	Closed
40MHz	Closed	Open	Open
50iMHz	Closed	Closed	Open
50MHz	Open	Open	Closed
66iMHz	Open	Closed	Closed
75iMHz	Closed	Closed	Open
100iMHz	Open	Closed	Closed

CPU SPEED CONFIGURATION (MX-8315)
Speed	JP5	JP6	JP7
20MHz	Open	Open	Open
25MHz	Open	Closed	Open
33MHz	Closed	Closed	Closed
40MHz	Open	Closed	Closed
50iMHz	Open	Closed	Open
50MHz	Closed	Open	Open
66iMHz	Closed	Closed	Closed
75iMHz	Open	Closed	Open
100iMHz	Closed	Closed	Closed

VESA WAIT STATE CONFIGURATION
Wait states	JP28
0 wait states	pins 1 & 2 closed
1 wait state	pins 2 & 3 closed

BUS SPEED CONFIGURATION
CPU speed	JP29
<= 33MHz	pins 1 & 2 closed
> 33MHz	pins 2 & 3 closed