4ULD.1 Motherboard Settings and Configuration

CHAINTECH COMPUTER COMPANY, LTD.

4ULD.1

Processor
80486SX/SL80486SX/UMCU5S/CX486M7/AM486DXL/80486DX/SL80486DX/ AM486DXL2/80486DX2/SL80486DX/80486DX4/P24D/Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set
UMC
Max. Onboard DRAM
64MB
Cache
128/256KB
BIOS
Award
Dimensions
250mm x 220mm
I/O Options
32-bit VESA local bus slots (3), green PC connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
JP1
Green PC connector
JP20
Green PC connector
JP2
Reset switch
JP21
Green PC connector
JP3
Speaker
JP23
Green PC connector
JP4
Turbo LED
JP26
Green PC connector
JP5
Green PC LED
JP33
External battery
JP8
32-bit VESA local bus slots
SL1 - SL3
Turbo switch
JP16

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Battery type select internal
JP8
pins 2 & 3 closed

CMOS memory clear
JP8
pins 3 & 4 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
1MB
(4) 256K x 9
NONE
NONE
1MB
NONE
(1) 256K x 36
NONE
2MB
(4) 256K x 9
(1) 256K x 36
NONE
2MB
NONE
(1) 512K x 36
NONE
2MB
NONE
(1) 256K x 36
(1) 256K x 36
3MB
(4) 256K x 9
(1) 512K x 36
NONE
3MB
NONE
(1) 512K x 36
(1) 256K x 36
3MB
NONE
(1) 256K x 36
(1) 512K x 36
4MB
(4) 1M x 9
NONE
NONE
4MB
NONE
(1) 1M x 36
NONE
4MB
NONE
(1) 512K x 36
(1) 512K x 36
5MB
(4) 1M x 9
(1) 256K x 36
NONE
5MB
(4) 256K x 9
(1) 1M x 36
NONE
5MB
NONE
(1) 1M x 36
(1) 256K x 36
5MB
NONE
(1) 256K x 36
(1) 1M x 36
6MB
(4) 1M x 9
(1) 512K x 36
NONE
6MB
NONE
(1) 1M x 36
(1) 512K x 36
6MB
NONE
(1) 512K x 36
(1) 1M x 36
8MB
(4) 1M x 9
(1) 1M x 36
NONE
8MB
NONE
(1) 2M x 36
NONE
8MB
NONE
(1) 1M x 36
(1) 1M x 36
9MB
(4) 256K x 9
(1) 2M x 36
NONE
9MB
NONE
(1) 2M x 36
(1) 256K x 36
9MB
NONE
(1) 256K x 36
(1) 2M x 36
10MB
NONE
(1) 2M x 36
(1) 512K x 36
10MB
NONE
(1) 512K x 36
(1) 2M x 36
12MB
(4) 1M x 9
(1) 2M x 36
NONE
12MB
NONE
(1) 2M x 36
(1) 1M x 36
12MB
NONE
(1) 1M x 36
(1) 2M x 36
16MB
(4) 4M x 9
NONE
NONE
16MB
NONE
(1) 4M x 36
NONE
16MB
NONE
(1) 2M x 36
(1) 2M x 36
17MB
(4) 4M x 9
(1) 256K x 36
NONE
17MB
(4) 256K x 9
(1) 4M x 36
NONE
17MB
NONE
(1) 4M x 36
(1) 256K x 36
17MB
NONE
(1) 256K x 36
(1) 4M x 36
18MB
(4) 4M x 9
(1) 512K x 36
NONE

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
18MB
NONE
(1) 4M x 36
(1) 512K x 36
18MB
NONE
(1) 512K x 36
(1) 4M x 36
20MB
(4) 4M x 9
(1) 1M x 36
NONE
20MB
(4) 1M x 9
(1) 4M x 36
NONE
20MB
NONE
(1) 4M x 36
(1) 1M x 36
20MB
NONE
(1) 1M x 36
(1) 4M x 36
24MB
(4) 4M x 9
(1) 2M x 36
NONE
24MB
NONE
(1) 4M x 36
(1) 2M x 36
24MB
NONE
(1) 2M x 36
(1) 4M x 36
32MB
(4) 8M x 9
NONE
NONE
32MB
(4) 4M x 9
(1) 4M x 36
NONE
32MB
NONE
(1) 8M x 36
NONE
32MB
NONE
(1) 4M x 36
(1) 4M x 36
33MB
(4) 8M x 9
(1) 256K x 36
NONE
33MB
(4) 256K x 9
(1) 8M x 36
NONE
33MB
NONE
(1) 8M x 36
(1) 256K x 36
33MB
NONE
(1) 256K x 36
(1) 8M x 36
34MB
(4) 8M x 9
(1) 512K x 36
NONE
34MB
NONE
(1) 8M x 36
(1) 512K x 36
34MB
NONE
(1) 512K x 36
(1) 8M x 36
36MB
(4) 8M x 9
(1) 1M x 36
NONE
36MB
(4) 1M x 9
(1) 8M x 36
NONE
36MB
NONE
(1) 8M x 36
(1) 1M x 36
36MB
NONE
(1) 1M x 36
(1) 8M x 36
40MB
(4) 8M x 9
(1) 2M x 36
NONE
40MB
NONE
(1) 8M x 36
(1) 2M x 36
40MB
NONE
(1) 2M x 36
(1) 8M x 36
48MB
(4) 8M x 9
(1) 4M x 36
NONE
48MB
(4) 4M x 9
(1) 8M x 36
NONE
48MB
NONE
(1) 8M x 36
(1) 4M x 36
48MB
NONE
(1) 4M x 36
(1) 8M x 36
64MB
(4) 16M x 9
NONE
NONE
64MB
(4) 8M x 9
(1) 8M x 36
NONE
64MB
NONE
(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 (A)
(4) 32K x 8
(4) 32K x 8
(1) 16K or (1) 32K x 8
256KB (B)
(4) 64K x 8
NONE
(1) 16K or (1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP13
JP14
JP15
128KB
pins 2 & 3 closed
pins 2 & 3 closed
pins 2 & 3 closed
256KB (A)
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
256KB (B)
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed

CPU TYPE CONFIGURATION
Type
JS1
JS2
JS3
JS4
JS5
80486SX
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
SL80486SX
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
UMCU5S
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
CX486M7
1 & 2
1 & 2
1 & 2
2 & 3
2 & 3
AM486DXL
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
80486DX
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
SL80486DX
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
AM486DXL2
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
80486DX2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
SL80486DX2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
P24D
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
80486DX4
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
Pentium Overdrive
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JS6
JS7
JS8
JS9
JS10
80486SX
1 & 2
1 & 2
3 & 4
1 & 2
2 & 3
SL80486SX
1 & 2
1 & 2
3 & 4
1 & 2
1 & 2
UMCU5S
1 & 2
1 & 2
1 & 2
1 & 2
2 & 3
CX486M7
3 & 4
3 & 4
1 & 2
3 & 4
1 & 2
AM486DXL
1 & 2
1 & 2
1 & 2
1 & 2
2 & 3
80486DX
1 & 2
1 & 2
1 & 2
1 & 2
2 & 3
SL80486DX
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
AM486DXL2
1 & 2
1 & 2
1 & 2
1 & 2
2 & 3
80486DX2
1 & 2
1 & 2
1 & 2
1 & 2
2 & 3
SL80486DX2
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
P24D
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2
80486DX4
1 & 2
1 & 2
1 & 2
1 & 2
1 & 2
Pentium Overdrive
1 & 2
1 & 2
2 & 3
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type
JS11
JS12
JS13
JS14
80486SX
pins 3 & 4 closed
pins 3 & 4 closed
pins 3 & 4 closed
pins 3 & 4 closed
SL80486SX
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
UMCU5S
pins 3 & 4 closed
pins 2 & 3 closed
pins 3 & 4 closed
pins 2 & 3 closed
CX486M7
pins 2 & 3 closed
pins 1 & 2 closed
pins 2 & 3 closed
pins 3 & 4 closed
AM486DXL
pins 3 & 4 closed
pins 2 & 3 closed
pins 3 & 4 closed
pins 2 & 3 closed
80486DX
pins 3 & 4 closed
pins 3 & 4 closed
pins 3 & 4 closed
pins 3 & 4 closed
SL80486DX
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
AM486DXL2
pins 3 & 4 closed
pins 2 & 3 closed
pins 3 & 4 closed
pins 2 & 3 closed
80486DX2
pins 3 & 4 closed
pins 3 & 4 closed
pins 3 & 4 closed
pins 3 & 4 closed
SL80486DX2
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
P24D
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
80486DX4
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
Pentium Overdrive
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed

CPU SPEED CONFIGURATION (MX8315/UM9515)
Speed
JP17
JP18
JP19
25MHz
Open
Open
Closed
33MHz
Closed
Closed
Closed
40MHz
Closed
Open
Closed
50iMHz
Open
Open
Closed
50MHz
Open
Closed
Open
66iMHz
Closed
Closed
Closed
75iMHz
Open
Open
Closed
80iMHz
Closed
Open
Closed
100iMHz
Closed
Closed
Closed

CPU SPEED CONFIGURATION (IMIS466)
Speed
JP17
JP18
JP19
25MHz
Open
Open
Open
33MHz
Closed
Closed
Open
40MHz
Closed
Open
Open
50iMHz
Open
Open
Open
50MHz
Open
Closed
Open
66iMHz
Closed
Closed
Open
75iMHz
Open
Open
Open
80iMHz
Closed
Open
Open
100iMHz
Closed
Closed
Open

CPU SPEED CONFIGURATION (80486DX4 ONLY)
Speed
JP25
2x
pins 2 & 3 closed
3x
Open

CPU VOLTAGE CONFIGURATION
Voltage
JP10
JP11
JP12
3.3v
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
5v
pins 2 & 3 closed
pins 2 & 3 closed
pins 2 & 3 closed

VESA WAIT STATE CONFIGURATION
Wait states
JP24
0 wait states
Open
1 wait state
Closed

VL BUS SPEED CONFIGURATION
CPU speed
JP22
<= 33MHz
Open
> 33MHz
Closed

Headaches Begone! A Systemic Approach To Healing Your Headaches

Don't Let Your Bike Seat Ruin Your Sex Life Book

4ULD.1 Motherboard Settings and Configuration

Search

My Books

Discover

Processor	80486SX/SL80486SX/UMCU5S/CX486M7/AM486DXL/80486DX/SL80486DX/ AM486DXL2/80486DX2/SL80486DX/80486DX4/P24D/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Chip Set	UMC
Max. Onboard DRAM	64MB
Cache	128/256KB
BIOS	Award
Dimensions	250mm x 220mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	JP1	Green PC connector	JP20
Green PC connector	JP2	Reset switch	JP21
Green PC connector	JP3	Speaker	JP23
Green PC connector	JP4	Turbo LED	JP26
Green PC connector	JP5	Green PC LED	JP33
External battery	JP8	32-bit VESA local bus slots	SL1 - SL3
Turbo switch	JP16

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Battery type select internal	JP8	pins 2 & 3 closed
	CMOS memory clear	JP8	pins 3 & 4 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
1MB	(4) 256K x 9	NONE	NONE
1MB	NONE	(1) 256K x 36	NONE
2MB	(4) 256K x 9	(1) 256K x 36	NONE
2MB	NONE	(1) 512K x 36	NONE
2MB	NONE	(1) 256K x 36	(1) 256K x 36
3MB	(4) 256K x 9	(1) 512K x 36	NONE
3MB	NONE	(1) 512K x 36	(1) 256K x 36
3MB	NONE	(1) 256K x 36	(1) 512K x 36
4MB	(4) 1M x 9	NONE	NONE
4MB	NONE	(1) 1M x 36	NONE
4MB	NONE	(1) 512K x 36	(1) 512K x 36
5MB	(4) 1M x 9	(1) 256K x 36	NONE
5MB	(4) 256K x 9	(1) 1M x 36	NONE
5MB	NONE	(1) 1M x 36	(1) 256K x 36
5MB	NONE	(1) 256K x 36	(1) 1M x 36
6MB	(4) 1M x 9	(1) 512K x 36	NONE
6MB	NONE	(1) 1M x 36	(1) 512K x 36
6MB	NONE	(1) 512K x 36	(1) 1M x 36
8MB	(4) 1M x 9	(1) 1M x 36	NONE
8MB	NONE	(1) 2M x 36	NONE
8MB	NONE	(1) 1M x 36	(1) 1M x 36
9MB	(4) 256K x 9	(1) 2M x 36	NONE
9MB	NONE	(1) 2M x 36	(1) 256K x 36
9MB	NONE	(1) 256K x 36	(1) 2M x 36
10MB	NONE	(1) 2M x 36	(1) 512K x 36
10MB	NONE	(1) 512K x 36	(1) 2M x 36
12MB	(4) 1M x 9	(1) 2M x 36	NONE
12MB	NONE	(1) 2M x 36	(1) 1M x 36
12MB	NONE	(1) 1M x 36	(1) 2M x 36
16MB	(4) 4M x 9	NONE	NONE
16MB	NONE	(1) 4M x 36	NONE
16MB	NONE	(1) 2M x 36	(1) 2M x 36
17MB	(4) 4M x 9	(1) 256K x 36	NONE
17MB	(4) 256K x 9	(1) 4M x 36	NONE
17MB	NONE	(1) 4M x 36	(1) 256K x 36
17MB	NONE	(1) 256K x 36	(1) 4M x 36
18MB	(4) 4M x 9	(1) 512K x 36	NONE

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2
18MB	NONE	(1) 4M x 36	(1) 512K x 36
18MB	NONE	(1) 512K x 36	(1) 4M x 36
20MB	(4) 4M x 9	(1) 1M x 36	NONE
20MB	(4) 1M x 9	(1) 4M x 36	NONE
20MB	NONE	(1) 4M x 36	(1) 1M x 36
20MB	NONE	(1) 1M x 36	(1) 4M x 36
24MB	(4) 4M x 9	(1) 2M x 36	NONE
24MB	NONE	(1) 4M x 36	(1) 2M x 36
24MB	NONE	(1) 2M x 36	(1) 4M x 36
32MB	(4) 8M x 9	NONE	NONE
32MB	(4) 4M x 9	(1) 4M x 36	NONE
32MB	NONE	(1) 8M x 36	NONE
32MB	NONE	(1) 4M x 36	(1) 4M x 36
33MB	(4) 8M x 9	(1) 256K x 36	NONE
33MB	(4) 256K x 9	(1) 8M x 36	NONE
33MB	NONE	(1) 8M x 36	(1) 256K x 36
33MB	NONE	(1) 256K x 36	(1) 8M x 36
34MB	(4) 8M x 9	(1) 512K x 36	NONE
34MB	NONE	(1) 8M x 36	(1) 512K x 36
34MB	NONE	(1) 512K x 36	(1) 8M x 36
36MB	(4) 8M x 9	(1) 1M x 36	NONE
36MB	(4) 1M x 9	(1) 8M x 36	NONE
36MB	NONE	(1) 8M x 36	(1) 1M x 36
36MB	NONE	(1) 1M x 36	(1) 8M x 36
40MB	(4) 8M x 9	(1) 2M x 36	NONE
40MB	NONE	(1) 8M x 36	(1) 2M x 36
40MB	NONE	(1) 2M x 36	(1) 8M x 36
48MB	(4) 8M x 9	(1) 4M x 36	NONE
48MB	(4) 4M x 9	(1) 8M x 36	NONE
48MB	NONE	(1) 8M x 36	(1) 4M x 36
48MB	NONE	(1) 4M x 36	(1) 8M x 36
64MB	(4) 16M x 9	NONE	NONE
64MB	(4) 8M x 9	(1) 8M x 36	NONE
64MB	NONE	(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 (A)	(4) 32K x 8	(4) 32K x 8	(1) 16K or (1) 32K x 8
256KB (B)	(4) 64K x 8	NONE	(1) 16K or (1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP13	JP14	JP15
128KB	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
256KB (A)	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
256KB (B)	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed

CPU TYPE CONFIGURATION
Type	JS1	JS2	JS3	JS4	JS5
80486SX	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
SL80486SX	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
UMCU5S	2 & 3	2 & 3	2 & 3	1 & 2	1 & 2
CX486M7	1 & 2	1 & 2	1 & 2	2 & 3	2 & 3
AM486DXL	1 & 2	1 & 2	2 & 3	1 & 2	1 & 2
80486DX	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
SL80486DX	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
AM486DXL2	1 & 2	1 & 2	2 & 3	1 & 2	1 & 2
80486DX2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
SL80486DX2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
P24D	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
80486DX4	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
Pentium Overdrive	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JS6	JS7	JS8	JS9	JS10
80486SX	1 & 2	1 & 2	3 & 4	1 & 2	2 & 3
SL80486SX	1 & 2	1 & 2	3 & 4	1 & 2	1 & 2
UMCU5S	1 & 2	1 & 2	1 & 2	1 & 2	2 & 3
CX486M7	3 & 4	3 & 4	1 & 2	3 & 4	1 & 2
AM486DXL	1 & 2	1 & 2	1 & 2	1 & 2	2 & 3
80486DX	1 & 2	1 & 2	1 & 2	1 & 2	2 & 3
SL80486DX	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
AM486DXL2	1 & 2	1 & 2	1 & 2	1 & 2	2 & 3
80486DX2	1 & 2	1 & 2	1 & 2	1 & 2	2 & 3
SL80486DX2	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
P24D	2 & 3	2 & 3	1 & 2	2 & 3	1 & 2
80486DX4	1 & 2	1 & 2	1 & 2	1 & 2	1 & 2
Pentium Overdrive	1 & 2	1 & 2	2 & 3	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)
Type	JS11	JS12	JS13	JS14
80486SX	pins 3 & 4 closed	pins 3 & 4 closed	pins 3 & 4 closed	pins 3 & 4 closed
SL80486SX	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
UMCU5S	pins 3 & 4 closed	pins 2 & 3 closed	pins 3 & 4 closed	pins 2 & 3 closed
CX486M7	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed	pins 3 & 4 closed
AM486DXL	pins 3 & 4 closed	pins 2 & 3 closed	pins 3 & 4 closed	pins 2 & 3 closed
80486DX	pins 3 & 4 closed	pins 3 & 4 closed	pins 3 & 4 closed	pins 3 & 4 closed
SL80486DX	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
AM486DXL2	pins 3 & 4 closed	pins 2 & 3 closed	pins 3 & 4 closed	pins 2 & 3 closed
80486DX2	pins 3 & 4 closed	pins 3 & 4 closed	pins 3 & 4 closed	pins 3 & 4 closed
SL80486DX2	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
P24D	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
80486DX4	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
Pentium Overdrive	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed

CPU SPEED CONFIGURATION (MX8315/UM9515)
Speed	JP17	JP18	JP19
25MHz	Open	Open	Closed
33MHz	Closed	Closed	Closed
40MHz	Closed	Open	Closed
50iMHz	Open	Open	Closed
50MHz	Open	Closed	Open
66iMHz	Closed	Closed	Closed
75iMHz	Open	Open	Closed
80iMHz	Closed	Open	Closed
100iMHz	Closed	Closed	Closed

CPU SPEED CONFIGURATION (IMIS466)
Speed	JP17	JP18	JP19
25MHz	Open	Open	Open
33MHz	Closed	Closed	Open
40MHz	Closed	Open	Open
50iMHz	Open	Open	Open
50MHz	Open	Closed	Open
66iMHz	Closed	Closed	Open
75iMHz	Open	Open	Open
80iMHz	Closed	Open	Open
100iMHz	Closed	Closed	Open

CPU SPEED CONFIGURATION (80486DX4 ONLY)
Speed	JP25
2x	pins 2 & 3 closed
3x	Open

CPU VOLTAGE CONFIGURATION
Voltage	JP10	JP11	JP12
3.3v	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
5v	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed

VESA WAIT STATE CONFIGURATION
Wait states	JP24
0 wait states	Open
1 wait state	Closed

VL BUS SPEED CONFIGURATION
CPU speed	JP22
<= 33MHz	Open
> 33MHz	Closed