SY-030G/H Motherboard Settings and Configuration

SOYO TECHNOLOGY CO., LTD.

SY-030G/H

Processor
80486SX/SL80486SX/CX486DX/U5S/80486DX/CX486DX2/AM486DX2/ 80486DX2/AM486DX4/80486DX4/P24D/Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
256MB
Cache
256/512/1024KB
BIOS
Award
Dimensions
330mm x 218mm
I/O Options
32-bit PCI slots (3), IDE interfaces (2), green PC connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
IDE interface (primary)
J4
External battery
J20
IDE interface (secondary)
J5
Turbo switch
J21
Green PC connector
J6
Turbo LED
J22
Power LED & keylock
J17
IDE Interface LED (primary)
JP10
Speaker
J18
IDE interface LED (secondary)
JP11
Reset switch
J19
32-bit PCI slots
PCI1 - PCI3

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Monitor type select color
JP3
Closed

Monitor type select monochrome
JP3
Open
»
CMOS memory normal operation
JP5
pins 1 & 2 closed

CMOS memory clear
JP5
pins 2 & 3 closed
»
Factory configured - do not alter
JP28
pins 2 & 3, 4 & 5 closed
»
Factory configured - do not alter
JP29
N/A
»
Factory configured - do not alter
JP35
N/A
»
Factory configured - do not alter
JP36
N/A
»
Factory configured - do not alter
JP37
N/A
»
Factory configured - do not alter
JP38
N/A
»
Factory configured - do not alter
JP39
pins 1 & 2 closed
»
Factory configured - do not alter
JP45
Open
Note: The location of JP28 is unidentified.

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
3MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
NONE
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
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) 512K x 36
(1) 512K x 36
(1) 512K x 36
NONE
8MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
8MB
(1) 1M x 36
(1) 1M x 36
NONE
NONE
8MB
(1) 2M x 36
NONE
NONE
NONE
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
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
17MB
(1) 256K 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
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
24MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
NONE
32MB
(1) 2M 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
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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
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
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
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
70MB
(1) 16M x 36
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
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
88MB
(1) 16M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M 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
112MB
(1) 16M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
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
132MB
(1) 16M x 36
(1) 16M x 36
(1) 512K x 36
(1) 512K x 36
144MB
(1) 16M x 36
(1) 16M x 36
(1) 2M x 36
(1) 2M x 36
160MB
(1) 16M x 36
(1) 16M x 36
(1) 4M x 36
(1) 4M x 36
160MB
(1) 16M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
192MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36

192MB
(1) 16M x 36
(1) 16M x 36
(1) 8M x 36
(1) 8M x 36
194MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
(1) 512K x 36
200MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
(1) 2M x 36
208MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
(1) 4M x 36
224MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
(1) 8M x 36
256MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36

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

CACHE JUMPER CONFIGURATION
Size
JP23
JP24
JP25
256KB
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
256KB
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
512KB
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed
512KB
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
1MB
pins 2 & 3 closed
pins 1 & 2 closed
pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type
JP1
JP2
JP4
JP6
JP7
80486SX
Open
Open
1 & 3, 2 & 4
Open
3 & 4
SL80486SX
Open
Open
1 & 3, 2 & 4
Open
3 & 4
CX486DX (5v)
Open
Open
1 & 3, 2 & 4
3 & 4
2 & 3
U5S
Open
Open
1 & 3, 2 & 4
Open
Open
80486DX (5v)
Open
Open
1 & 3, 2 & 4
Open
3 & 4
CX486DX2 (3.6v)
Open
Open
3 & 5, 4 & 6
3 & 4
2 & 3
CX486DX2 (4v)
Open
Open
3 & 5, 4 & 6
1 & 2
2 & 3
CX486DX2 (5v)
Open
Open
1 & 3, 2 & 4
3 & 4
2 & 3
AM486DX2 (3.45v)
Open
2 & 3
3 & 5, 4 & 6
5 & 6
3 & 4
80486DX2 (5v)
Open
Open
1 & 3, 2 & 4
Open
3 & 4
AM486DX4 (3.45v)
Open
1 & 2
3 & 5, 4 & 6
5 & 6
3 & 4
80486DX4 (3.45v)
Open
Open
3 & 5, 4 & 6
5 & 6
3 & 4
80486DX4 (5v)
Open
Open
1 & 3, 2 & 4
Open
3 & 4
P24D
Open
1 & 2
1 & 3, 2 & 4
Open
1 & 2, 3 & 4
Pentium Overdrive
Open
Open
1 & 3, 2 & 4
Open
3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP8
JP9
JP15
JP16
JP17
80486SX
Open
2 & 3
Open
2 & 3
Open
SL80486SX
Open
2 & 3
Open
2 & 3
Open
CX486DX (5v)
2 & 3
1 & 2, 3 & 4
3 & 4
2 & 3
2 & 3
U5S
3 & 4
1 & 2, 3 & 4
1 & 2, 3 & 4
2 & 3
Open
80486DX (5v)
Open
1 & 2, 3 & 4
3 & 4
2 & 3
Open
CX486DX2 (3.6v)
2 & 3
1 & 2, 3 & 4
3 & 4
2 & 3
2 & 3
CX486DX2 (4v)
2 & 3
1 & 2, 3 & 4
3 & 4
2 & 3
2 & 3
CX486DX2 (5v)
2 & 3
1 & 2, 3 & 4
3 & 4
2 & 3
2 & 3
AM486DX2 (3.45v)
Open
1 & 2, 3 & 4
3 & 4
2 & 3
Open
80486DX2 (5v)
Open
1 & 2, 3 & 4
3 & 4
2 & 3
Open
AM486DX4 (3.45v)
Open
1 & 2, 3 & 4
3 & 4
2 & 3
Open
80486DX4 (3.45v)
Open
1 & 2, 3 & 4
3 & 4
2 & 3
Open
80486DX4 (5v)
Open
1 & 2, 3 & 4
3 & 4
2 & 3
Open
P24D
Open
1 & 2, 3 & 4
3 & 4
1 & 2
1 & 2
Pentium Overdrive
1 & 2
1 & 2, 3 & 4
2 & 3
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JP18
JP19
JP20
80486SX
pins 1 & 2 closed
Open
pins 2 & 3 closed
SL80486SX
pins 1 & 2 closed
Open
pins 2 & 3 closed
CX486DX (5v)
pins 1 & 2 closed
Open
pins 1 & 2 closed
U5S
pins 2 & 3 closed
Open
pins 4 & 5 closed
80486DX (5v)
pins 1 & 2 closed
Open
pins 2 & 3 closed
CX486DX2 (3.6v)
pins 1 & 2 closed
Open
pins 1 & 2 closed
CX486DX2 (4v)
pins 1 & 2 closed
Open
pins 1 & 2 closed
CX486DX2 (5v)
pins 1 & 2 closed
Open
pins 1 & 2 closed
AM486DX2 (3.45v)
pins 1 & 2 closed
Open
pins 2 & 3 closed
80486DX2 (5v)
pins 1 & 2 closed
Open
pins 2 & 3 closed
AM486DX4 (3.45v)
pins 1 & 2 closed
Open
pins 2 & 3 closed
80486DX4 (3.45v)
pins 1 & 2 closed
Open
pins 2 & 3 closed
80486DX4 (5v)
pins 1 & 2 closed
Open
pins 2 & 3 closed
P24D
pins 1 & 2 closed
pins 1 & 2 closed
pins 2 & 3 closed
Pentium Overdrive
pins 1 & 2 closed
Open
pins 2 & 3 closed

CPU TYPE CONFIGURATION (CON’T)
Type
JP21
JP22
JP44
80486SX
pins 1 & 2 closed
pins 4 & 5 closed
Open
SL80486SX
pins 1 & 2 closed
pins 4 & 5 closed
Open
CX486DX (5v)
Open
pins 2 & 3 closed
Open
U5S
Open
Open
Open
80486DX (5v)
pins 1 & 2 closed
pins 4 & 5 closed
Open
CX486DX2 (3.6v)
Open
pins 2 & 3 closed
Open
CX486DX2 (4v)
Open
pins 2 & 3 closed
Open
CX486DX2 (5v)
Open
pins 2 & 3 closed
Open
AM486DX2 (3.45v)
pins 1 & 2 closed
pins 4 & 5 closed
Open
80486DX2 (5v)
pins 1 & 2 closed
pins 4 & 5 closed
Open
AM486DX4 (3.45v)
pins 1 & 2 closed
pins 4 & 5 closed
Open
80486DX4 (3.45v)
pins 1 & 2 closed
pins 4 & 5 closed
Open
80486DX4 (5v)
pins 1 & 2 closed
pins 4 & 5 closed
Open
P24D
pins 2 & 3 closed
pins 4 & 5 closed
Open
Pentium Overdrive
Open
pins 1 & 2 closed
pins 1 & 2 closed

CPU SPEED CONFIGURATION
Speed
JP30
JP31
JP32
JP33
25MHz
Open
Open
Open
pins 1 & 2 closed
33MHz
Open
Closed
Closed
pins 1 & 2 closed
40MHz
Open
Open
Closed
pins 2 & 3 closed
50iMHz
Open
Open
Open
pins 1 & 2 closed
50MHz
Open
Closed
Open
pins 2 & 3 closed
66iMHz
Open
Closed
Closed
pins 1 & 2 closed
75iMHz
Open
Open
Open
pins 1 & 2 closed
80iMHz
Open
Open
Closed
pins 2 & 3 closed
100iMHz
Open
Closed
Closed
pins 1 & 2 closed

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SY-030G/H Motherboard Settings and Configuration

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Processor	80486SX/SL80486SX/CX486DX/U5S/80486DX/CX486DX2/AM486DX2/ 80486DX2/AM486DX4/80486DX4/P24D/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	256MB
Cache	256/512/1024KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slots (3), IDE interfaces (2), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface (primary)	J4	External battery	J20
IDE interface (secondary)	J5	Turbo switch	J21
Green PC connector	J6	Turbo LED	J22
Power LED & keylock	J17	IDE Interface LED (primary)	JP10
Speaker	J18	IDE interface LED (secondary)	JP11
Reset switch	J19	32-bit PCI slots	PCI1 - PCI3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	JP3	Closed
	Monitor type select monochrome	JP3	Open
»	CMOS memory normal operation	JP5	pins 1 & 2 closed
	CMOS memory clear	JP5	pins 2 & 3 closed
»	Factory configured - do not alter	JP28	pins 2 & 3, 4 & 5 closed
»	Factory configured - do not alter	JP29	N/A
»	Factory configured - do not alter	JP35	N/A
»	Factory configured - do not alter	JP36	N/A
»	Factory configured - do not alter	JP37	N/A
»	Factory configured - do not alter	JP38	N/A
»	Factory configured - do not alter	JP39	pins 1 & 2 closed
»	Factory configured - do not alter	JP45	Open
Note: The location of JP28 is unidentified.

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
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	NONE
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
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) 512K x 36	(1) 512K x 36	(1) 512K x 36	NONE
8MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
8MB	(1) 1M x 36	(1) 1M x 36	NONE	NONE
8MB	(1) 2M x 36	NONE	NONE	NONE
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
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
17MB	(1) 256K 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
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
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	NONE
32MB	(1) 2M 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
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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
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
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
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
70MB	(1) 16M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
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
88MB	(1) 16M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M 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
112MB	(1) 16M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
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
132MB	(1) 16M x 36	(1) 16M x 36	(1) 512K x 36	(1) 512K x 36
144MB	(1) 16M x 36	(1) 16M x 36	(1) 2M x 36	(1) 2M x 36
160MB	(1) 16M x 36	(1) 16M x 36	(1) 4M x 36	(1) 4M x 36
160MB	(1) 16M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
192MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36
192MB	(1) 16M x 36	(1) 16M x 36	(1) 8M x 36	(1) 8M x 36
194MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	(1) 512K x 36
200MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	(1) 2M x 36
208MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	(1) 4M x 36
224MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	(1) 8M x 36
256MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36

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

CACHE JUMPER CONFIGURATION
Size	JP23	JP24	JP25
256KB	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
256KB	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
512KB	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
512KB	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
1MB	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed

CPU TYPE CONFIGURATION
Type	JP1	JP2	JP4	JP6	JP7
80486SX	Open	Open	1 & 3, 2 & 4	Open	3 & 4
SL80486SX	Open	Open	1 & 3, 2 & 4	Open	3 & 4
CX486DX (5v)	Open	Open	1 & 3, 2 & 4	3 & 4	2 & 3
U5S	Open	Open	1 & 3, 2 & 4	Open	Open
80486DX (5v)	Open	Open	1 & 3, 2 & 4	Open	3 & 4
CX486DX2 (3.6v)	Open	Open	3 & 5, 4 & 6	3 & 4	2 & 3
CX486DX2 (4v)	Open	Open	3 & 5, 4 & 6	1 & 2	2 & 3
CX486DX2 (5v)	Open	Open	1 & 3, 2 & 4	3 & 4	2 & 3
AM486DX2 (3.45v)	Open	2 & 3	3 & 5, 4 & 6	5 & 6	3 & 4
80486DX2 (5v)	Open	Open	1 & 3, 2 & 4	Open	3 & 4
AM486DX4 (3.45v)	Open	1 & 2	3 & 5, 4 & 6	5 & 6	3 & 4
80486DX4 (3.45v)	Open	Open	3 & 5, 4 & 6	5 & 6	3 & 4
80486DX4 (5v)	Open	Open	1 & 3, 2 & 4	Open	3 & 4
P24D	Open	1 & 2	1 & 3, 2 & 4	Open	1 & 2, 3 & 4
Pentium Overdrive	Open	Open	1 & 3, 2 & 4	Open	3 & 4
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP8	JP9	JP15	JP16	JP17
80486SX	Open	2 & 3	Open	2 & 3	Open
SL80486SX	Open	2 & 3	Open	2 & 3	Open
CX486DX (5v)	2 & 3	1 & 2, 3 & 4	3 & 4	2 & 3	2 & 3
U5S	3 & 4	1 & 2, 3 & 4	1 & 2, 3 & 4	2 & 3	Open
80486DX (5v)	Open	1 & 2, 3 & 4	3 & 4	2 & 3	Open
CX486DX2 (3.6v)	2 & 3	1 & 2, 3 & 4	3 & 4	2 & 3	2 & 3
CX486DX2 (4v)	2 & 3	1 & 2, 3 & 4	3 & 4	2 & 3	2 & 3
CX486DX2 (5v)	2 & 3	1 & 2, 3 & 4	3 & 4	2 & 3	2 & 3
AM486DX2 (3.45v)	Open	1 & 2, 3 & 4	3 & 4	2 & 3	Open
80486DX2 (5v)	Open	1 & 2, 3 & 4	3 & 4	2 & 3	Open
AM486DX4 (3.45v)	Open	1 & 2, 3 & 4	3 & 4	2 & 3	Open
80486DX4 (3.45v)	Open	1 & 2, 3 & 4	3 & 4	2 & 3	Open
80486DX4 (5v)	Open	1 & 2, 3 & 4	3 & 4	2 & 3	Open
P24D	Open	1 & 2, 3 & 4	3 & 4	1 & 2	1 & 2
Pentium Overdrive	1 & 2	1 & 2, 3 & 4	2 & 3	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JP18	JP19	JP20
80486SX	pins 1 & 2 closed	Open	pins 2 & 3 closed
SL80486SX	pins 1 & 2 closed	Open	pins 2 & 3 closed
CX486DX (5v)	pins 1 & 2 closed	Open	pins 1 & 2 closed
U5S	pins 2 & 3 closed	Open	pins 4 & 5 closed
80486DX (5v)	pins 1 & 2 closed	Open	pins 2 & 3 closed
CX486DX2 (3.6v)	pins 1 & 2 closed	Open	pins 1 & 2 closed
CX486DX2 (4v)	pins 1 & 2 closed	Open	pins 1 & 2 closed
CX486DX2 (5v)	pins 1 & 2 closed	Open	pins 1 & 2 closed
AM486DX2 (3.45v)	pins 1 & 2 closed	Open	pins 2 & 3 closed
80486DX2 (5v)	pins 1 & 2 closed	Open	pins 2 & 3 closed
AM486DX4 (3.45v)	pins 1 & 2 closed	Open	pins 2 & 3 closed
80486DX4 (3.45v)	pins 1 & 2 closed	Open	pins 2 & 3 closed
80486DX4 (5v)	pins 1 & 2 closed	Open	pins 2 & 3 closed
P24D	pins 1 & 2 closed	pins 1 & 2 closed	pins 2 & 3 closed
Pentium Overdrive	pins 1 & 2 closed	Open	pins 2 & 3 closed

CPU TYPE CONFIGURATION (CON’T)
Type	JP21	JP22	JP44
80486SX	pins 1 & 2 closed	pins 4 & 5 closed	Open
SL80486SX	pins 1 & 2 closed	pins 4 & 5 closed	Open
CX486DX (5v)	Open	pins 2 & 3 closed	Open
U5S	Open	Open	Open
80486DX (5v)	pins 1 & 2 closed	pins 4 & 5 closed	Open
CX486DX2 (3.6v)	Open	pins 2 & 3 closed	Open
CX486DX2 (4v)	Open	pins 2 & 3 closed	Open
CX486DX2 (5v)	Open	pins 2 & 3 closed	Open
AM486DX2 (3.45v)	pins 1 & 2 closed	pins 4 & 5 closed	Open
80486DX2 (5v)	pins 1 & 2 closed	pins 4 & 5 closed	Open
AM486DX4 (3.45v)	pins 1 & 2 closed	pins 4 & 5 closed	Open
80486DX4 (3.45v)	pins 1 & 2 closed	pins 4 & 5 closed	Open
80486DX4 (5v)	pins 1 & 2 closed	pins 4 & 5 closed	Open
P24D	pins 2 & 3 closed	pins 4 & 5 closed	Open
Pentium Overdrive	Open	pins 1 & 2 closed	pins 1 & 2 closed

CPU SPEED CONFIGURATION
Speed	JP30	JP31	JP32	JP33
25MHz	Open	Open	Open	pins 1 & 2 closed
33MHz	Open	Closed	Closed	pins 1 & 2 closed
40MHz	Open	Open	Closed	pins 2 & 3 closed
50iMHz	Open	Open	Open	pins 1 & 2 closed
50MHz	Open	Closed	Open	pins 2 & 3 closed
66iMHz	Open	Closed	Closed	pins 1 & 2 closed
75iMHz	Open	Open	Open	pins 1 & 2 closed
80iMHz	Open	Open	Closed	pins 2 & 3 closed
100iMHz	Open	Closed	Closed	pins 1 & 2 closed