CAT48AF, CAP48AF Motherboard Settings and Configuration

TMC RESEARCH CORPORATION

CAT48AF, CAP48AF

Processor
804846SX/SL80486SX/SL80486SX2/80486DX/SL80486DX/
TI486DX2/AM486/AM486+/80486DX2/SL80486DX2/TI486DX4/
80486DX4/P24D/P24T/CX5X86
Processor Speed
25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)MHz
Chip Set
ALI
Video Chip Set
None
Maximum Onboard Memory
128MB
Maximum Video Memory
None
Cache
128/256/512KB
BIOS
Unidentified
Dimensions
Unidentified
I/O Options
Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
IDE interface 1
J1
Turbo switch
JP1 pins 7 & 17
IDE interface 2
J2
Turbo LED
JP1 pins 8 & 18
Floppy drive interface
J3
Reset switch
JP1 pins 9 & 19
Parallel port
J4
IDE interface LED
JP1 pins 10 & 20
Serial port 1
J5
Power LED & keylock
JP1 pins 11 - 15
Serial port 2
J6
PS/2 mouse interface
JP27
Speaker
JP1 pins 1 - 4
Auxiliary keyboard connector
KB1

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP19
Pins 1 & 2 closed

CMOS memory clear
JP19
Pins 2 & 3 closed
»
System reset when watch dog timer times out
JP20
Pins 1 & 2 closed

Activate NMI to CPU when watch dog timer times out
JP20
Pins 2 & 3 closed

Watch dog timer disabled
JP20
Open
»
Watch dog timer time out select 1 second
JP22
Open

Watch dog timer time out select 500ms
JP22
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
2MB
(1) 256K x 36
(1) 256K x 36
None
None
2MB
(1) 512K x 36
None
None
None
4MB
(1) 1M x 36
None
None
None
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
4MB
(1) 512K x 36
None
(1) 256K x 36
(1) 256K x 36
4MB
(1) 512K x 36
None
(1) 512K x 36
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
None
(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
10MB
(1) 512K x 36
None
(1) 1M x 36
(1) 1M x 36
10MB
(1) 512K x 36
None
(1) 2M x 36
None
12MB
(1) 1M x 36
None
(1) 2M x 36
None
16MB
(1) 4M x 36
None
None
None
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 2M x 36
None
(1) 1M x 36
(1) 1M x 36
16MB
(1) 2M x 36
None
(1) 2M x 36
None
17MB
(1) 256K x 36
(1) 4M x 36
None
None
20MB
(1) 1M x 36
(1) 4M x 36
None
None
32MB
(1) 4M x 36
(1) 4M x 36
None
None
32MB
(1) 8M x 36
None
None
None
64MB
(1) 16M x 36
None
None
None
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 8M x 36
None
(1) 4M x 36
(1) 4M x 36
64MB
(1) 8M x 36
None
(1) 8M x 36
None
128MB
(1) 16M x 36
(1) 16M x 36
None
None
128MB
(1) 32M x 36
None
None
None

CACHE CONFIGURATION
Size
Bank 0
TAG
128KB
(4) 32K x 8
(1) 8K x 8
256KB
(4) 64K x 8
(1) 16K x 8
512KB
(4) 128K x 8
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
JP13
JP14
128KB
Pins 2 & 3 closed
Pins 2 & 3 closed
256KB
Pins 2 & 3 closed
Pins 1 & 2 closed
512KB
Pins 1 & 2 closed
Pins 1 & 2 closed

CPU SPEED SELECTION
Speed
JP15
JP16
JP17
JP18
25MHz
Pins 1 & 2 closed
Open
Open
Open
33MHz
Pins 1 & 2 closed
Closed
Closed
Open
40MHz
Pins 1 & 2 closed
Closed
Open
Open
50iMHz
Pins 1 & 2 closed
Open
Open
Open
50MHz
Pins 2 & 3 closed
Open
Closed
Closed
66iMHz
Pins 1 & 2 closed
Closed
Closed
Open
75iMHz
Pins 1 & 2 closed
Open
Open
Open
80iMHz
Pins 1 & 2 closed
Closed
Open
Open
100iMHz
Pins 1 & 2 closed
Closed
Closed
Open
120iMHz
Pins 1 & 2 closed
Closed
Open
Open

CPU VOLTAGE SELECTION
Voltage
JP2
»
3.45v
Pins 1 & 2 closed

4v
Pins 3 & 4 closed

5v
Pins 5 & 6 closed

DMA CHANNEL SELECTION
Channel
JP21
JP23

1
Pins 1 & 2 closed
Pins 1 & 2 closed
»
3
Pins 2 & 3 closed
Pins 2 & 3 closed

SERIAL PORT 2 SELECTION
Setting
JP25
JP26
Used as COM2
Pins 1 & 2 closed
Pins 1 & 2 closed
Used as IR connector
Pins 2 & 3 closed
Pins 2 & 3 closed

CPU TYPE SELECTION
Type
JP3
JP4
JP5
JP6
JP7
JP8
80486SX
Open
1 & 2
Open
1 & 2
1 & 2
Open
SL80486SX
3 & 4
3 & 4
3 & 4
1 & 2
1 & 2
Open
SL80486SX2
3 & 4
3 & 4
3 & 4
1 & 2
1 & 2
Open
80486DX
Open
1 & 2
Open
2 & 3
1 & 2
2 & 3
SL80486DX
3 & 4
3 & 4
3 & 4
2 & 3
1 & 2
2 & 3
CX486M7
5 & 6
5 & 6
5 & 6
2 & 3
1 & 2
2 & 3
TI486DX2
5 & 6
5 & 6
5 & 6
2 & 3
1 & 2
2 & 3
AM486-66/80
Open
1 & 2
Open
2 & 3
1 & 2
2 & 3
AM486-100
Open
1 & 2
Open
2 & 3
1 & 2
2 & 3
AM486+/66/80
3 & 4
3 & 4
3 & 4
2 & 3
2 & 3
2 & 3
AM486+/100/120
3 & 4
3 & 4
3 & 4
2 & 3
2 & 3
2 & 3
80486DX2
Open
1 & 2
Open
2 & 3
1 & 2
2 & 3
SL80486DX2
3 & 4
3 & 4
3 & 4
2 & 3
1 & 2
2 & 3
TI486DX4
5 & 6
5 & 6
5 & 6
2 & 3
1 & 2
2 & 3
80486DX4
3 & 4
3 & 4
3 & 4
2 & 3
1 & 2
2 & 3
P24D
3 & 4
3 & 4
3 & 4
2 & 3
2 & 3
2 & 3
P24T
3 & 4
3 & 4
3 & 4
2 & 3
2 & 3
1 & 2
CX5X86
3 & 4
3 & 4
3 & 4
2 & 3
1 & 2
2 & 3
AM5X86
3 & 4
3 & 4
3 & 4
2 & 3
2 & 3
2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION
Type
JP9
JP10
JP11
JP12
80486SX
Open
Open
Open
Closed
SL80486SX
Closed
Open
Open
Closed
SL80486SX2
Closed
Open
Open
Closed
80486DX
Open
Open
Open
Closed
SL80486DX
Closed
Open
Open
Closed
CX486M7
Closed
Open
1 & 2
Open
TI486DX2
Closed
Open
1 & 2
Open
AM486-66/80
Open
Closed
Open
Closed
AM486-100
Open
Open
Open
Closed
AM486+/66/80
Closed
Open
1 & 3, 5 & 6
Closed
AM486+/100/120
Closed
Open
5 & 6
Closed
80486DX2
Open
Open
Open
Closed
SL80486DX2
Closed
Open
Open
Closed
TI486DX4
Closed
Open
1 & 2
Open
80486DX4
Closed
Open
Open
Closed
P24D
Closed
Open
5 & 6
Closed
P24T
Closed
Open
Open
Closed
CX5X86
Closed
Open
5 & 6
Closed
AM5X86
Closed
Open
1 & 3, 5 & 6
Closed
Note: Pins designated should be in the closed position.

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CAT48AF, CAP48AF Motherboard Settings and Configuration

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Processor	804846SX/SL80486SX/SL80486SX2/80486DX/SL80486DX/ TI486DX2/AM486/AM486+/80486DX2/SL80486DX2/TI486DX4/ 80486DX4/P24D/P24T/CX5X86
Processor Speed	25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)MHz
Chip Set	ALI
Video Chip Set	None
Maximum Onboard Memory	128MB
Maximum Video Memory	None
Cache	128/256/512KB
BIOS	Unidentified
Dimensions	Unidentified
I/O Options	Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface 1	J1	Turbo switch	JP1 pins 7 & 17
IDE interface 2	J2	Turbo LED	JP1 pins 8 & 18
Floppy drive interface	J3	Reset switch	JP1 pins 9 & 19
Parallel port	J4	IDE interface LED	JP1 pins 10 & 20
Serial port 1	J5	Power LED & keylock	JP1 pins 11 - 15
Serial port 2	J6	PS/2 mouse interface	JP27
Speaker	JP1 pins 1 - 4	Auxiliary keyboard connector	KB1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP19	Pins 1 & 2 closed
	CMOS memory clear	JP19	Pins 2 & 3 closed
»	System reset when watch dog timer times out	JP20	Pins 1 & 2 closed
	Activate NMI to CPU when watch dog timer times out	JP20	Pins 2 & 3 closed
	Watch dog timer disabled	JP20	Open
»	Watch dog timer time out select 1 second	JP22	Open
	Watch dog timer time out select 500ms	JP22	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	(1) 256K x 36	(1) 256K x 36	None	None
2MB	(1) 512K x 36	None	None	None
4MB	(1) 1M x 36	None	None	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	(1) 512K x 36	None	(1) 256K x 36	(1) 256K x 36
4MB	(1) 512K x 36	None	(1) 512K x 36	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	None	(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
10MB	(1) 512K x 36	None	(1) 1M x 36	(1) 1M x 36
10MB	(1) 512K x 36	None	(1) 2M x 36	None
12MB	(1) 1M x 36	None	(1) 2M x 36	None
16MB	(1) 4M x 36	None	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 2M x 36	None	(1) 1M x 36	(1) 1M x 36
16MB	(1) 2M x 36	None	(1) 2M x 36	None
17MB	(1) 256K x 36	(1) 4M x 36	None	None
20MB	(1) 1M x 36	(1) 4M x 36	None	None
32MB	(1) 4M x 36	(1) 4M x 36	None	None
32MB	(1) 8M x 36	None	None	None
64MB	(1) 16M x 36	None	None	None
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	None	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	None	(1) 8M x 36	None
128MB	(1) 16M x 36	(1) 16M x 36	None	None
128MB	(1) 32M x 36	None	None	None

CACHE CONFIGURATION
Size	Bank 0	TAG
128KB	(4) 32K x 8	(1) 8K x 8
256KB	(4) 64K x 8	(1) 16K x 8
512KB	(4) 128K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JP13	JP14
128KB	Pins 2 & 3 closed	Pins 2 & 3 closed
256KB	Pins 2 & 3 closed	Pins 1 & 2 closed
512KB	Pins 1 & 2 closed	Pins 1 & 2 closed

CPU SPEED SELECTION
Speed	JP15	JP16	JP17	JP18
25MHz	Pins 1 & 2 closed	Open	Open	Open
33MHz	Pins 1 & 2 closed	Closed	Closed	Open
40MHz	Pins 1 & 2 closed	Closed	Open	Open
50iMHz	Pins 1 & 2 closed	Open	Open	Open
50MHz	Pins 2 & 3 closed	Open	Closed	Closed
66iMHz	Pins 1 & 2 closed	Closed	Closed	Open
75iMHz	Pins 1 & 2 closed	Open	Open	Open
80iMHz	Pins 1 & 2 closed	Closed	Open	Open
100iMHz	Pins 1 & 2 closed	Closed	Closed	Open
120iMHz	Pins 1 & 2 closed	Closed	Open	Open

CPU VOLTAGE SELECTION
Voltage		JP2
»	3.45v	Pins 1 & 2 closed
	4v	Pins 3 & 4 closed
	5v	Pins 5 & 6 closed

DMA CHANNEL SELECTION
Channel		JP21	JP23
	1	Pins 1 & 2 closed	Pins 1 & 2 closed
»	3	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORT 2 SELECTION
Setting	JP25	JP26
Used as COM2	Pins 1 & 2 closed	Pins 1 & 2 closed
Used as IR connector	Pins 2 & 3 closed	Pins 2 & 3 closed

CPU TYPE SELECTION
Type	JP3	JP4	JP5	JP6	JP7	JP8
80486SX	Open	1 & 2	Open	1 & 2	1 & 2	Open
SL80486SX	3 & 4	3 & 4	3 & 4	1 & 2	1 & 2	Open
SL80486SX2	3 & 4	3 & 4	3 & 4	1 & 2	1 & 2	Open
80486DX	Open	1 & 2	Open	2 & 3	1 & 2	2 & 3
SL80486DX	3 & 4	3 & 4	3 & 4	2 & 3	1 & 2	2 & 3
CX486M7	5 & 6	5 & 6	5 & 6	2 & 3	1 & 2	2 & 3
TI486DX2	5 & 6	5 & 6	5 & 6	2 & 3	1 & 2	2 & 3
AM486-66/80	Open	1 & 2	Open	2 & 3	1 & 2	2 & 3
AM486-100	Open	1 & 2	Open	2 & 3	1 & 2	2 & 3
AM486+/66/80	3 & 4	3 & 4	3 & 4	2 & 3	2 & 3	2 & 3
AM486+/100/120	3 & 4	3 & 4	3 & 4	2 & 3	2 & 3	2 & 3
80486DX2	Open	1 & 2	Open	2 & 3	1 & 2	2 & 3
SL80486DX2	3 & 4	3 & 4	3 & 4	2 & 3	1 & 2	2 & 3
TI486DX4	5 & 6	5 & 6	5 & 6	2 & 3	1 & 2	2 & 3
80486DX4	3 & 4	3 & 4	3 & 4	2 & 3	1 & 2	2 & 3
P24D	3 & 4	3 & 4	3 & 4	2 & 3	2 & 3	2 & 3
P24T	3 & 4	3 & 4	3 & 4	2 & 3	2 & 3	1 & 2
CX5X86	3 & 4	3 & 4	3 & 4	2 & 3	1 & 2	2 & 3
AM5X86	3 & 4	3 & 4	3 & 4	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE SELECTION
Type	JP9	JP10	JP11	JP12
80486SX	Open	Open	Open	Closed
SL80486SX	Closed	Open	Open	Closed
SL80486SX2	Closed	Open	Open	Closed
80486DX	Open	Open	Open	Closed
SL80486DX	Closed	Open	Open	Closed
CX486M7	Closed	Open	1 & 2	Open
TI486DX2	Closed	Open	1 & 2	Open
AM486-66/80	Open	Closed	Open	Closed
AM486-100	Open	Open	Open	Closed
AM486+/66/80	Closed	Open	1 & 3, 5 & 6	Closed
AM486+/100/120	Closed	Open	5 & 6	Closed
80486DX2	Open	Open	Open	Closed
SL80486DX2	Closed	Open	Open	Closed
TI486DX4	Closed	Open	1 & 2	Open
80486DX4	Closed	Open	Open	Closed
P24D	Closed	Open	5 & 6	Closed
P24T	Closed	Open	Open	Closed
CX5X86	Closed	Open	5 & 6	Closed
AM5X86	Closed	Open	1 & 3, 5 & 6	Closed
Note: Pins designated should be in the closed position.