HOT-433 Motherboard Settings and Configuration

SHUTTLE COMPUTER INTERNATIONAL, INC.

HOT-433

Processor
CX486S/80486SX/SL80486SX/CX486DX/AM486DX/SL AM486DX/UMC U5/ 80486DX/AM486DX2/SL AM486DX2/CX486DX2/80486DX2/CX486DX4/ SL AM486DX4/AM486DX4/80486DX4/P24D/Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set
UMC
Max. Onboard DRAM
256MB
Cache
128/256/512/1024KB
BIOS
AMI
Dimensions
260 x 220mm
I/O Options
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
External battery
CN1
Green PC connector
JP6
Serial port 2
CN2
Reset switch
JP33
Serial port 1
CN3
Turbo switch
JP34
Parallel port
CN4
EPMI connector
JP35
Floppy drive interface
CN5
Turbo LED
LED1
IDE linterface (secondary)
CN6
IDE interface LED
LED2
IDE interface (primary)
CN7
PS/2 mouse port
MS1
Speaker
CN8
32-bit PCI slots
PCI1 - PCI4
Power LED & keylock
CN9

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
Flash BIOS voltage select 5v
JP8
pins 2 & 3 closed

Flash BIOS voltage select 12v
JP8
pins 1 & 2 closed
»
CPU cache type select write back
JP24
pins 2 & 3 closed

CPU cache type select write though
JP24
pins 1 & 2 closed

CPU cache type select other CPU
JP24
Open

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
6MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
NONE
6MB
(1) 256K x 36
(1) 256K x 36
(1) 512K x 36
(1) 512K x 36
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
10MB
(1) 256K x 36
(1) 256K 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) 512K x 36
(1) 512K x 36
(1) 1M x 36
(1) 1M x 36
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
18MB
(1) 256K x 36
(1) 256K x 36
(1) 2M x 36
(1) 2M x 36
20MB
(1) 512K x 36
(1) 512K x 36
(1) 2M x 36
(1) 2M x 36
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
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
34MB
(1) 256K x 36
(1) 256K x 36
(1) 4M x 36
(1) 4M x 36
36MB
(1) 512K x 36
(1) 512K x 36
(1) 4M x 36
(1) 4M x 36
40MB
(1) 1M x 36
(1) 1M x 36
(1) 4M x 36
(1) 4M x 36
48MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
NONE
48MB
(1) 2M x 36
(1) 2M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 8M x 36
(1) 8M x 36
NONE
NONE
64MB
(1) 16M x 36
NONE
NONE
NONE
66MB
(1) 256K x 36
(1) 256K x 36
(1) 8M x 36
(1) 8M x 36
68MB
(1) 512K x 36
(1) 512K x 36
(1) 8M x 36
(1) 8M x 36
72MB
(1) 1M x 36
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
80MB
(1) 2M x 36
(1) 2M x 36
(1) 8M x 36
(1) 8M x 36
96MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
NONE
96MB
(1) 4M x 36
(1) 4M 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
160MB
(1) 4M x 36
(1) 4M x 36
(1) 16M x 36
(1) 16M x 36
192MB
(1) 16M x 36
(1) 16M x 36
(1) 16M x 36
NONE
192MB
(1) 8M x 36
(1) 8M x 36
(1) 16M x 36
(1) 16M 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
128KB
(4) 32K x 8
Open
(1) 8K x 8
256KB
(4) 32K x 8
(4) 32K x 8
(1) 32K x 8
256KB
(4) 64K x 8
Open
(1) 32K x 8
512KB
(4) 128K x 8
Open
(1) 32K x 8
512KB
(4) 64K x 8
(4) 64K x 8
(1) 32K x 8
1MB
(4) 128K x 8
(4) 128K x 8
(1) 64K x 8

CACHE JUMPER CONFIGURATION
Size
JP11
JP12
JP13
JP14
128KB
Open
Open
2 & 3
Open
256KB
Open
Open
1 & 2
1 & 2
256KB
Open
1 & 2
2 & 3
1 & 2
512KB
1 & 2
1 & 2
2 & 3
1 & 2, 3 & 4
512KB
Open
2 & 3
1 & 2
1 & 2, 3 & 4
1MB
2 & 3
2 & 3
1 & 2
1 & 2, 3 & 4, 5 & 6
Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION
Type
JP10
JP17
JP19
JP20
JP21
CX486S
1 & 3, 4 & 6
2 & 3
3 & 4
1 & 2, 3 & 4
1 & 2
80486SX
1 & 3, 2 & 4
Open
1 & 2
Open
Open
SL80486SX
1 & 3, 2 & 4
1 & 2
3 & 4
2 & 3, 4 & 5
1 & 2
CX486DX
1 & 3, 4 & 6
2 & 3
3 & 4
1 & 2, 3 & 4
1 & 2
AM486DX
1 & 3, 2 & 4
Open
1 & 2
Open
Open
SL AM486DX
1 & 3, 2 & 4
1 & 2
3 & 4
2 & 3, 4 & 5
1 & 2
UMC U5
2 & 4, 3 & 5
Open
1 & 2
Open
2 & 3
80486DX
1 & 3, 2 & 4
Open
1 & 2
Open
Open
AM486DX2
1 & 3, 2 & 4
Open
1 & 2
Open
Open
SL AM486DX2
1 & 3, 2 & 4
1 & 2
3 & 4
2 & 3, 4 & 5
1 & 2
CX486DX2
1 & 3, 4 & 6
2 & 3
3 & 4
1 & 2, 3 & 4
1 & 2
80486DX2
1 & 3, 2 & 4
Open
1 & 2
Open
Open
CX486DX4
1 & 3, 4 & 6
1 & 2
3 & 4
2 & 3, 4 & 5
1 & 2
SL AM486DX4
1 & 3, 2 & 4
1 & 2
3 & 4
2 & 3, 4 & 5
1 & 2
AM486DX4
1 & 3, 2 & 4
Open
1 & 2
Open
Open
80486DX4
1 & 3, 2 & 4
Open
1 & 2
Open
Open
P24D
1 & 3, 2 & 4
1 & 2
3 & 4
2 & 3, 4 & 5
1 & 2
P24T
1 & 3, 2 & 4
1 & 2
3 & 4, 5 & 6
2 & 3, 4 & 5
1 & 2
Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION (CONT)
Type
JP22
JP23
JP25
JP26
JP27
CX486S
Open
Open
2 & 3
2 & 3
1 & 2
80486SX
Open
Open
2 & 3
Open
Open
SL80486SX
Open
Open
2 & 3
Open
Open
CX486DX
Open
Open
2 & 3
2 & 3
1 & 2
AM486DX
Open
Open
2 & 3
Open
Open
SL AM486DX
Open
Open
2 & 3
Open
Open
UMC U5
Open
Open
2 & 3
1 & 2
2 & 3
80486DX
Open
Open
2 & 3
Open
Open
AM486DX2
Open
Open
2 & 3
Open
Open
SL AM486DX2
Open
Open
2 & 3
Open
Open
CX486DX2
Open
Open
2 & 3
2 & 3
1 & 2
80486DX2
Open
Open
2 & 3
Open
Open
CX486DX4
Open
Open
2 & 3
2 & 3
1 & 2
SL AM486DX4
Open
Open
2 & 3
Open
Open
AM486DX4
Open
Open
2 & 3
Open
Open
80486DX4
Open
Open
2 & 3
Open
Open
P24D
Closed
Closed
2 & 3
Open
Open
P24T
Open
Open
2 & 3
1 & 2
2 & 3
Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION (CONT)
Type
JP28
JP29
JP30
JP31
JP32
CX486S
2 & 3
1 & 2
Open
Open
Open
80486SX
2 & 3
Open
Open
Open
Open
SL80486SX
2 & 3
Open
Open
Open
Open
CX486DX
1 & 2, 3 & 4
2 & 3
3 & 4
Open
Open
AM486DX
1 & 2, 3 & 4
Open
3 & 4
Open
Open
SL AM486DX
1 & 2, 3 & 4
Open
3 & 4
Open
Open
UMC U5
2 & 3
3 & 4
1 & 2, 3 & 4
Open
Open
80486DX
1 & 2, 3 & 4
Open
3 & 4
Open
Open
AM486DX2
1 & 2, 3 & 4
Open
3 & 4
Open
Open
SL AM486DX2
1 & 2, 3 & 4
Open
3 & 4
Open
Open
CX486DX2
1 & 2, 3 & 4
2 & 3
3 & 4
Open
Open
80486DX2
1 & 2, 3 & 4
Open
3 & 4
Open
Open
CX486DX4
1 & 2, 3 & 4
Open
3 & 4
Open
Open
SL AM486DX4
1 & 2, 3 & 4
Open
3 & 4
Open
Open
AM486DX4
1 & 2, 3 & 4
Open
3 & 4
Open
Open
80486DX4
1 & 2, 3 & 4
Open
3 & 4
Open
Open
P24D
1 & 2, 3 & 4
Open
3 & 4
Closed
Closed
P24T
1 & 2, 3 & 4
3 & 4
2 & 3
Open
Open
Note: Pins designated should be in closed position.

CPU SPEED CONFIGURATION
Speed
JP1
JP2
JP3
25MHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
33MHz
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
40MHz
pins 2 & 3 closed
pins 1 & 2 closed
pins 1 & 2 closed
50iMHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 2 & 3 closed
50MHz
pins 1 & 2 closed
pins 2 & 3 closed
pins 2 & 3 closed
66iMHz
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed
75iMHz
pins 2 & 3 closed
pins 2 & 3 closed
pins 1 & 2 closed
100iMHz
pins 1 & 2 closed
pins 1 & 2 closed
pins 1 & 2 closed

CPU CLOCK CONFIGURATION
CPU Type
Clock Ratio
JP18
DX4-75
3:1
Open
DX4-100
3:1
Open
DX4-100
2:1
pins 2 & 3 closed
Other CPU
Other CPU
Open

CPU CLOCK CONFIGURATION - AMD
CPU Type
Clock Ratio
JP18
DX2-80
3:1
pins 2 & 3 closed
DX2-80
2:1
pins 1 & 2 closed
DX4-100
3:1
pins 2 & 3 closed
DX4-100
2:1
pins 1 & 2 closed
Other CPU
Other CPU
Open

CPU VOLTAGE CONFIGURATION
Voltage
JP9
JP15
JP16
3.3v
pins 1 & 2 closed
pins 2 & 3 closed
pins 1 & 2 closed
3.45v
pins 3 & 4 closed
pins 2 & 3 closed
pins 1 & 2 closed
3.6v
pins 5 & 6 closed
pins 2 & 3 closed
pins 1 & 2 closed
4v
pins 7 & 8 closed
pins 2 & 3 closed
pins 1 & 2 closed
5v
Open
pins 1 & 2 closed
pins 2 & 3 closed

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Processor	CX486S/80486SX/SL80486SX/CX486DX/AM486DX/SL AM486DX/UMC U5/ 80486DX/AM486DX2/SL AM486DX2/CX486DX2/80486DX2/CX486DX4/ SL AM486DX4/AM486DX4/80486DX4/P24D/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Chip Set	UMC
Max. Onboard DRAM	256MB
Cache	128/256/512/1024KB
BIOS	AMI
Dimensions	260 x 220mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	CN1	Green PC connector	JP6
Serial port 2	CN2	Reset switch	JP33
Serial port 1	CN3	Turbo switch	JP34
Parallel port	CN4	EPMI connector	JP35
Floppy drive interface	CN5	Turbo LED	LED1
IDE linterface (secondary)	CN6	IDE interface LED	LED2
IDE interface (primary)	CN7	PS/2 mouse port	MS1
Speaker	CN8	32-bit PCI slots	PCI1 - PCI4
Power LED & keylock	CN9

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Flash BIOS voltage select 5v	JP8	pins 2 & 3 closed
	Flash BIOS voltage select 12v	JP8	pins 1 & 2 closed
»	CPU cache type select write back	JP24	pins 2 & 3 closed
	CPU cache type select write though	JP24	pins 1 & 2 closed
	CPU cache type select other CPU	JP24	Open

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
6MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36	NONE
6MB	(1) 256K x 36	(1) 256K x 36	(1) 512K x 36	(1) 512K x 36
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
10MB	(1) 256K x 36	(1) 256K 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) 512K x 36	(1) 512K x 36	(1) 1M x 36	(1) 1M x 36
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
18MB	(1) 256K x 36	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36
20MB	(1) 512K x 36	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36
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
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
34MB	(1) 256K x 36	(1) 256K x 36	(1) 4M x 36	(1) 4M x 36
36MB	(1) 512K x 36	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36
40MB	(1) 1M x 36	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	NONE
48MB	(1) 2M x 36	(1) 2M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 8M x 36	NONE	NONE
64MB	(1) 16M x 36	NONE	NONE	NONE
66MB	(1) 256K x 36	(1) 256K x 36	(1) 8M x 36	(1) 8M x 36
68MB	(1) 512K x 36	(1) 512K x 36	(1) 8M x 36	(1) 8M x 36
72MB	(1) 1M x 36	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
80MB	(1) 2M x 36	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	NONE
96MB	(1) 4M x 36	(1) 4M 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
160MB	(1) 4M x 36	(1) 4M x 36	(1) 16M x 36	(1) 16M x 36
192MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	NONE
192MB	(1) 8M x 36	(1) 8M x 36	(1) 16M x 36	(1) 16M 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
128KB	(4) 32K x 8	Open	(1) 8K x 8
256KB	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8
256KB	(4) 64K x 8	Open	(1) 32K x 8
512KB	(4) 128K x 8	Open	(1) 32K x 8
512KB	(4) 64K x 8	(4) 64K x 8	(1) 32K x 8
1MB	(4) 128K x 8	(4) 128K x 8	(1) 64K x 8

CACHE JUMPER CONFIGURATION
Size	JP11	JP12	JP13	JP14
128KB	Open	Open	2 & 3	Open
256KB	Open	Open	1 & 2	1 & 2
256KB	Open	1 & 2	2 & 3	1 & 2
512KB	1 & 2	1 & 2	2 & 3	1 & 2, 3 & 4
512KB	Open	2 & 3	1 & 2	1 & 2, 3 & 4
1MB	2 & 3	2 & 3	1 & 2	1 & 2, 3 & 4, 5 & 6
Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION
Type	JP10	JP17	JP19	JP20	JP21
CX486S	1 & 3, 4 & 6	2 & 3	3 & 4	1 & 2, 3 & 4	1 & 2
80486SX	1 & 3, 2 & 4	Open	1 & 2	Open	Open
SL80486SX	1 & 3, 2 & 4	1 & 2	3 & 4	2 & 3, 4 & 5	1 & 2
CX486DX	1 & 3, 4 & 6	2 & 3	3 & 4	1 & 2, 3 & 4	1 & 2
AM486DX	1 & 3, 2 & 4	Open	1 & 2	Open	Open
SL AM486DX	1 & 3, 2 & 4	1 & 2	3 & 4	2 & 3, 4 & 5	1 & 2
UMC U5	2 & 4, 3 & 5	Open	1 & 2	Open	2 & 3
80486DX	1 & 3, 2 & 4	Open	1 & 2	Open	Open
AM486DX2	1 & 3, 2 & 4	Open	1 & 2	Open	Open
SL AM486DX2	1 & 3, 2 & 4	1 & 2	3 & 4	2 & 3, 4 & 5	1 & 2
CX486DX2	1 & 3, 4 & 6	2 & 3	3 & 4	1 & 2, 3 & 4	1 & 2
80486DX2	1 & 3, 2 & 4	Open	1 & 2	Open	Open
CX486DX4	1 & 3, 4 & 6	1 & 2	3 & 4	2 & 3, 4 & 5	1 & 2
SL AM486DX4	1 & 3, 2 & 4	1 & 2	3 & 4	2 & 3, 4 & 5	1 & 2
AM486DX4	1 & 3, 2 & 4	Open	1 & 2	Open	Open
80486DX4	1 & 3, 2 & 4	Open	1 & 2	Open	Open
P24D	1 & 3, 2 & 4	1 & 2	3 & 4	2 & 3, 4 & 5	1 & 2
P24T	1 & 3, 2 & 4	1 & 2	3 & 4, 5 & 6	2 & 3, 4 & 5	1 & 2
Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION (CONT)
Type	JP22	JP23	JP25	JP26	JP27
CX486S	Open	Open	2 & 3	2 & 3	1 & 2
80486SX	Open	Open	2 & 3	Open	Open
SL80486SX	Open	Open	2 & 3	Open	Open
CX486DX	Open	Open	2 & 3	2 & 3	1 & 2
AM486DX	Open	Open	2 & 3	Open	Open
SL AM486DX	Open	Open	2 & 3	Open	Open
UMC U5	Open	Open	2 & 3	1 & 2	2 & 3
80486DX	Open	Open	2 & 3	Open	Open
AM486DX2	Open	Open	2 & 3	Open	Open
SL AM486DX2	Open	Open	2 & 3	Open	Open
CX486DX2	Open	Open	2 & 3	2 & 3	1 & 2
80486DX2	Open	Open	2 & 3	Open	Open
CX486DX4	Open	Open	2 & 3	2 & 3	1 & 2
SL AM486DX4	Open	Open	2 & 3	Open	Open
AM486DX4	Open	Open	2 & 3	Open	Open
80486DX4	Open	Open	2 & 3	Open	Open
P24D	Closed	Closed	2 & 3	Open	Open
P24T	Open	Open	2 & 3	1 & 2	2 & 3
Note: Pins designated should be in closed position.

CPU TYPE CONFIGURATION (CONT)
Type	JP28	JP29	JP30	JP31	JP32
CX486S	2 & 3	1 & 2	Open	Open	Open
80486SX	2 & 3	Open	Open	Open	Open
SL80486SX	2 & 3	Open	Open	Open	Open
CX486DX	1 & 2, 3 & 4	2 & 3	3 & 4	Open	Open
AM486DX	1 & 2, 3 & 4	Open	3 & 4	Open	Open
SL AM486DX	1 & 2, 3 & 4	Open	3 & 4	Open	Open
UMC U5	2 & 3	3 & 4	1 & 2, 3 & 4	Open	Open
80486DX	1 & 2, 3 & 4	Open	3 & 4	Open	Open
AM486DX2	1 & 2, 3 & 4	Open	3 & 4	Open	Open
SL AM486DX2	1 & 2, 3 & 4	Open	3 & 4	Open	Open
CX486DX2	1 & 2, 3 & 4	2 & 3	3 & 4	Open	Open
80486DX2	1 & 2, 3 & 4	Open	3 & 4	Open	Open
CX486DX4	1 & 2, 3 & 4	Open	3 & 4	Open	Open
SL AM486DX4	1 & 2, 3 & 4	Open	3 & 4	Open	Open
AM486DX4	1 & 2, 3 & 4	Open	3 & 4	Open	Open
80486DX4	1 & 2, 3 & 4	Open	3 & 4	Open	Open
P24D	1 & 2, 3 & 4	Open	3 & 4	Closed	Closed
P24T	1 & 2, 3 & 4	3 & 4	2 & 3	Open	Open
Note: Pins designated should be in closed position.

CPU SPEED CONFIGURATION
Speed	JP1	JP2	JP3
25MHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
33MHz	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
40MHz	pins 2 & 3 closed	pins 1 & 2 closed	pins 1 & 2 closed
50iMHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
50MHz	pins 1 & 2 closed	pins 2 & 3 closed	pins 2 & 3 closed
66iMHz	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed
75iMHz	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
100iMHz	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed

CPU CLOCK CONFIGURATION
CPU Type	Clock Ratio	JP18
DX4-75	3:1	Open
DX4-100	3:1	Open
DX4-100	2:1	pins 2 & 3 closed
Other CPU	Other CPU	Open

CPU CLOCK CONFIGURATION - AMD
CPU Type	Clock Ratio	JP18
DX2-80	3:1	pins 2 & 3 closed
DX2-80	2:1	pins 1 & 2 closed
DX4-100	3:1	pins 2 & 3 closed
DX4-100	2:1	pins 1 & 2 closed
Other CPU	Other CPU	Open

CPU VOLTAGE CONFIGURATION
Voltage	JP9	JP15	JP16
3.3v	pins 1 & 2 closed	pins 2 & 3 closed	pins 1 & 2 closed
3.45v	pins 3 & 4 closed	pins 2 & 3 closed	pins 1 & 2 closed
3.6v	pins 5 & 6 closed	pins 2 & 3 closed	pins 1 & 2 closed
4v	pins 7 & 8 closed	pins 2 & 3 closed	pins 1 & 2 closed
5v	Open	pins 1 & 2 closed	pins 2 & 3 closed