486SPM Motherboard Settings and Configuration

CHAINTECH COMPUTER COMPANY, LTD

486SPM

Processor
80486SX/CX486DX/AM486DX/U5S/80486DX/ODP486SX/CX486DX2/ CX486DX2V/AM486DX2/AM486DX2/80486DX2/CX486DX4/AM486DX4-NV8T/ AM486DX4-SV8B/80486DX4/80486DX4(WB)/Pentium Overdrive/
SL Pentium Overdrive/CXM1SC
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)/ 120(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
128MB
Cache
128/256/512/1024KB
BIOS
Award
Dimensions
220mm x 250mm
I/O Options
Green PC connector, floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), 32-bit PCI slots (3)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port 1
CN2
Green PC LED
JP27
Serial port 2
CN3
Green PC connector
JP29
Parallel port
CN4
Turbo switch
JP35
Floppy drive interface
CN5
Turbo LED
JP36
IDE interface 1
CN6
Speaker
JP37
IDE interface 2
CN7
Reset switch
JP44
External battery
JP12
Power LED & keylock
JP45
IDE interface LED 1
JP14
32-bit PCI slots
PCI1 - PCI3
IDE interface LED 2
JP15

USER CONFIGURABLE SETTINGS
Function
Jumper
Position
»
CMOS memory normal operation
JP13
pins 1 & 2 closed

CMOS memory clear
JP13
pins 2 & 3 closed
»
PCI-Bus clock select normal speed
JP21
pins 1 & 2 closed

PCI-Bus clock select ½ speed
JP21
pins 2 & 3 closed
»
Factory configured - do not alter
JP31
pins 1 & 2 closed
»
Turbo switch select high speed
JP35
Closed

Turbo switch select low speed
JP35
Open
»
Factory configured - do not alter
JP39
pins 1 & 2 closed
»
Factory configured - do not alter
JP40
pins 1 & 2 closed
»
Factory configured - do not alter
JP46
N/A
»
Factory configured - do not alter
JP47
N/A

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
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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
16MB
(1) 4M x 36
NONE
NONE
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
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
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
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
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) 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
JP17
JP18
JP19
JP20
JP25
JP26
128KB
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
1 & 2
256KB
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
256KB
1 & 2
2 & 3
1 & 2
1 & 2
2 & 3
1 & 2
512KB
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
512KB
1 & 2
1 & 2
2 & 3
1 & 2
2 & 3
2 & 3
1MB
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
J2
J3
J4
J5
J6
80486SX
Closed
Open
Open
Open
Closed
CX486DX
Open
Closed
Open
Closed
Open
AM486DX
Open
Closed
Open
Open
Closed
U5S
Closed
Open
Open
Open
Closed
80486DX
Open
Closed
Open
Open
Closed
ODP486SX
Open
Closed
Open
Open
Closed
CX486DX2V
Open
Closed
Open
Closed
Open
CX486DX2
Open
Closed
Open
Closed
Open
AM486DX2
Open
Closed
Open
Open
Closed
AM486DX2-80
Open
Closed
Open
Open
Closed
80486DX2
Open
Closed
Open
Open
Closed
CX486DX4
Open
Closed
Open
Closed
Open
AM486DX4-NV8T
Open
Closed
Open
Open
Closed
AM486DX4-SV8B
Open
Open
Closed
Open
Open
80486DX4
Open
Closed
Open
Open
Closed
80486DX4 (WB)
Open
Open
Closed
Open
Open
Pentium Overdrive
Open
Open
Closed
Open
Open
SL Pentium Overdrive
Open
Open
Closed
Open
Open
CXM1SC
Open
Open
Closed
Open
Open

CPU TYPE CONFIGURATION (CON’T)
Type
J7
JP41
JP42
JP43
80486SX
Open
Open
1 & 2
1 & 2
CX486DX
Open
1 & 2
1 & 2
1 & 2
AM486DX
Open
Open
1 & 2
1 & 2
U5S
Open
Open
1 & 2
1 & 2
80486DX
Open
Open
1 & 2
1 & 2
ODP486SX
Open
Open
1 & 2
2 & 3
CX486DX2V
Open
1 &2
1 & 2
1 & 2
CX486DX2
Open
Open
1 & 2
1 & 2
AM486DX2
Open
Open
1 & 2
1 & 2
AM486DX2-80
Open
Open
2 & 3
1 & 2
80486DX2
Open
Open
1 & 2
1 & 2
CX486DX4
Open
1 & 2
1 & 2
1 & 2
AM486DX4-NV8T
Open
Open
1 & 2
1 & 2
AM486DX4-SV8B
Closed
Open
1 & 2
1 & 2
80486DX4
Open
Open
1 & 2
1 & 2
80486DX4 (WB)
Closed
Open
1 & 2
1 & 2
Pentium Overdrive
Closed
Open
1 & 2
1 & 2
SL Pentium Overdrive
Closed
Open
1 & 2
2 & 3
CXM1SC
Closed
Open
1 & 2
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed
JP22
JP23
25MHz
pins 2 & 3 closed
pins 2 & 3 closed
33MHz
pins 1 & 2 closed
pins 1 & 2 closed
40MHz
pins 1 & 2 closed
pins 2 & 3 closed
50iMHz
pins 2 & 3 closed
pins 2 & 3 closed
50MHz
pins 2 & 3 closed
pins 1 & 2 closed
66iMHz
pins 1 & 2 closed
pins 1 & 2 closed
75iMHz
pins 2 & 3 closed
pins 2 & 3 closed
80iMHz
pins 1 & 2 closed
pins 2 & 3 closed
100iMHz
pins 1 & 2 closed
pins 1 & 2 closed
120iMHz
pins 1 & 2 closed
pins 2 & 3 closed

CPU VOLTAGE CONFIGURATION
Voltage
JP32
JP38
3.3v
Open
pins 1 & 2 closed
4v
Open
pins 2 & 3 closed
5v
Closed
Open

DMA CONFIGURATION
DMA
JP1
JP2
DMA 1
pins 1 & 2 closed
pins 1 & 2 closed
DMA 3
pins 2 & 3 closed
pins 2 & 3 closed

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486SPM Motherboard Settings and Configuration

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Processor	80486SX/CX486DX/AM486DX/U5S/80486DX/ODP486SX/CX486DX2/ CX486DX2V/AM486DX2/AM486DX2/80486DX2/CX486DX4/AM486DX4-NV8T/ AM486DX4-SV8B/80486DX4/80486DX4(WB)/Pentium Overdrive/ SL Pentium Overdrive/CXM1SC
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)/ 120(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	128MB
Cache	128/256/512/1024KB
BIOS	Award
Dimensions	220mm x 250mm
I/O Options	Green PC connector, floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), 32-bit PCI slots (3)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CN2	Green PC LED	JP27
Serial port 2	CN3	Green PC connector	JP29
Parallel port	CN4	Turbo switch	JP35
Floppy drive interface	CN5	Turbo LED	JP36
IDE interface 1	CN6	Speaker	JP37
IDE interface 2	CN7	Reset switch	JP44
External battery	JP12	Power LED & keylock	JP45
IDE interface LED 1	JP14	32-bit PCI slots	PCI1 - PCI3
IDE interface LED 2	JP15

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CMOS memory normal operation	JP13	pins 1 & 2 closed
	CMOS memory clear	JP13	pins 2 & 3 closed
»	PCI-Bus clock select normal speed	JP21	pins 1 & 2 closed
	PCI-Bus clock select ½ speed	JP21	pins 2 & 3 closed
»	Factory configured - do not alter	JP31	pins 1 & 2 closed
»	Turbo switch select high speed	JP35	Closed
	Turbo switch select low speed	JP35	Open
»	Factory configured - do not alter	JP39	pins 1 & 2 closed
»	Factory configured - do not alter	JP40	pins 1 & 2 closed
»	Factory configured - do not alter	JP46	N/A
»	Factory configured - do not alter	JP47	N/A

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
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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
16MB	(1) 4M x 36	NONE	NONE	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
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
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
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
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) 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	JP17	JP18	JP19	JP20	JP25	JP26
128KB	1 & 2	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
256KB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	1 & 2
256KB	1 & 2	2 & 3	1 & 2	1 & 2	2 & 3	1 & 2
512KB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
512KB	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3	2 & 3
1MB	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	J2	J3	J4	J5	J6
80486SX	Closed	Open	Open	Open	Closed
CX486DX	Open	Closed	Open	Closed	Open
AM486DX	Open	Closed	Open	Open	Closed
U5S	Closed	Open	Open	Open	Closed
80486DX	Open	Closed	Open	Open	Closed
ODP486SX	Open	Closed	Open	Open	Closed
CX486DX2V	Open	Closed	Open	Closed	Open
CX486DX2	Open	Closed	Open	Closed	Open
AM486DX2	Open	Closed	Open	Open	Closed
AM486DX2-80	Open	Closed	Open	Open	Closed
80486DX2	Open	Closed	Open	Open	Closed
CX486DX4	Open	Closed	Open	Closed	Open
AM486DX4-NV8T	Open	Closed	Open	Open	Closed
AM486DX4-SV8B	Open	Open	Closed	Open	Open
80486DX4	Open	Closed	Open	Open	Closed
80486DX4 (WB)	Open	Open	Closed	Open	Open
Pentium Overdrive	Open	Open	Closed	Open	Open
SL Pentium Overdrive	Open	Open	Closed	Open	Open
CXM1SC	Open	Open	Closed	Open	Open

CPU TYPE CONFIGURATION (CON’T)
Type	J7	JP41	JP42	JP43
80486SX	Open	Open	1 & 2	1 & 2
CX486DX	Open	1 & 2	1 & 2	1 & 2
AM486DX	Open	Open	1 & 2	1 & 2
U5S	Open	Open	1 & 2	1 & 2
80486DX	Open	Open	1 & 2	1 & 2
ODP486SX	Open	Open	1 & 2	2 & 3
CX486DX2V	Open	1 &2	1 & 2	1 & 2
CX486DX2	Open	Open	1 & 2	1 & 2
AM486DX2	Open	Open	1 & 2	1 & 2
AM486DX2-80	Open	Open	2 & 3	1 & 2
80486DX2	Open	Open	1 & 2	1 & 2
CX486DX4	Open	1 & 2	1 & 2	1 & 2
AM486DX4-NV8T	Open	Open	1 & 2	1 & 2
AM486DX4-SV8B	Closed	Open	1 & 2	1 & 2
80486DX4	Open	Open	1 & 2	1 & 2
80486DX4 (WB)	Closed	Open	1 & 2	1 & 2
Pentium Overdrive	Closed	Open	1 & 2	1 & 2
SL Pentium Overdrive	Closed	Open	1 & 2	2 & 3
CXM1SC	Closed	Open	1 & 2	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JP22	JP23
25MHz	pins 2 & 3 closed	pins 2 & 3 closed
33MHz	pins 1 & 2 closed	pins 1 & 2 closed
40MHz	pins 1 & 2 closed	pins 2 & 3 closed
50iMHz	pins 2 & 3 closed	pins 2 & 3 closed
50MHz	pins 2 & 3 closed	pins 1 & 2 closed
66iMHz	pins 1 & 2 closed	pins 1 & 2 closed
75iMHz	pins 2 & 3 closed	pins 2 & 3 closed
80iMHz	pins 1 & 2 closed	pins 2 & 3 closed
100iMHz	pins 1 & 2 closed	pins 1 & 2 closed
120iMHz	pins 1 & 2 closed	pins 2 & 3 closed

CPU VOLTAGE CONFIGURATION
Voltage	JP32	JP38
3.3v	Open	pins 1 & 2 closed
4v	Open	pins 2 & 3 closed
5v	Closed	Open

DMA CONFIGURATION
DMA	JP1	JP2
DMA 1	pins 1 & 2 closed	pins 1 & 2 closed
DMA 3	pins 2 & 3 closed	pins 2 & 3 closed