AP-540TX Motherboard Settings and Configuration

Device Type	Single board computer
Processor	CX 6X86/CX 6X86L/CX MII/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed	75/90/100/120/133/150/166/200/233MHz
Chip Set	Intel 430TX
Video Chip Set	S3
Video Types Supported	VGA
Highest Resolution Supported	1024 x 768
Maximum Onboard Memory	256MB
Maximum Video Memory	2MB
Cache	512KB
BIOS	Award
Dimensions	338mm x 122mm
I/O Options	Floppy drive interface, IDE interfaces (2), green PC connector, parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, USB connectors (2)

CONNECTIONS
Purpose	Location	Purpose	Location
Chassis fan power	C1	Power LED & keylock	J1
VGA port	CN1	Reset switch	J2
PS/2 mouse port	CN2	Speaker	J3
Serial port 1	CN3	IDE interface LED	J4
IDE interface 1	CN4	Turbo LED	J5
Floppy drive interface	CN5	Green PC connector	J6
Parallel port	CN6	Auxiliary keyboard connector	KCN
IDE interface 2	CN7	USB connector 1	USB1
Serial port 2	CN8	USB connector 2	USB2
IR connector	IR1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	JP2	Unidentified
»	CMOS memory normal operation	S1	Open
	CMOS memory clear	S1	Closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(2) 1M x 36	None
16MB	(2) 2M x 36	None
16MB	(2) 1M x 36	(2) 1M x 36
24MB	(2) 2M x 36	(2) 1M x 36
32MB	(2) 4M x 36	None
32MB	(2) 2M x 36	(2) 2M x 36
40MB	(2) 4M x 36	(2) 1M x 36
48MB	(2) 4M x 36	(2) 2M x 36
64MB	(2) 8M x 36	None
64MB	(2) 4M x 36	(2) 4M x 36
72MB	(2) 8M x 36	(2) 1M x 36
80MB	(2) 8M x 36	(2) 2M x 36
96MB	(2) 8M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36
128MB	(2) 16M x 36	None
136MB	(2) 16M x 36	(2) 1M x 36
144MB	(2) 16M x 36	(2) 2M x 36
160MB	(2) 16M x 36	(2) 4M x 36
192MB	(2) 16M x 36	(2) 8M x 36
256MB	(2) 16M x 36	(2) 16M x 36

DIMM CONFIGURATION
Size	Bank 2	Bank 3
8MB	(1) 1M x 64	None
16MB	(1) 2M x 64	None
16MB	(1) 1M x 64	(1) 1M x 64
24MB	(1) 2M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None
32MB	(1) 2M x 64	(1) 2M x 64
40MB	(1) 4M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None
64MB	(1) 4M x 64	(1) 4M x 64
72MB	(1) 8M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64
128MB	(1) 16M x 64	None
128MB	(1) 8M x 64	(1) 8M x 64
136MB	(1) 16M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64
192MB	(1) 16M x 64	(1) 8M x 64
256MB	(1) 16M x 64	(1) 16M x 64

CACHE CONFIGURATION

Note: The location of the cache is unidentified.

VIDEO MEMORY CONFIGURATION

Note: The location of the video memory is unidentified.

CPU SPEED SELECTION (CX 6X86)
CPU speed	Clock speed	Multiplier	JP3	JP14
120MHz	50MHz	2x	1 & 2, 3 & 4, 5 & 6	1 & 2
150MHz	60MHz	2x	1 & 2	1 & 2
166MHz	66MHz	2x	Open	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)
CPU speed	Clock speed	Multiplier	JP3	JP14
120MHz	50MHz	2x	1 & 2, 3 & 4, 5 & 6	1 & 2
150MHz	60MHz	2x	1 & 2	1 & 2
166MHz	66MHz	2x	Open	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX MII)
CPU speed	Clock speed	Multiplier	JP3	JP14
166MHz	66MHz	2x	Open	1 & 2
166MHz	60MHz	2.5x	1 & 2	1 & 2, 3 & 4
200MHz	75MHz	2x	3 & 4, 5 & 6	1 & 2
200MHz	66MHz	2.5x	Open	1 & 2, 3 & 4
233MHz	83MHz	2x	1 & 2, 5 & 6	1 & 2
233MHz	75MHz	2.5x	3 & 4, 5 & 6	1 & 2, 3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP3	JP14
75MHz	50MHz	1.5x	1 & 2, 3 & 4, 5 & 6	Open
90MHz	60MHz	1.5x	1 & 2	Open
100MHz	66MHz	1.5x	Open	Open
120MHz	60MHz	2x	1 & 2	1 & 2
133MHz	66MHz	2x	Open	1 & 2
150MHz	60MHz	2.5x	1 & 2	1 & 2, 3 & 4
166MHz	66MHz	2.5x	Open	1 & 2, 3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP3	JP14
166MHz	66MHz	2.5x	Open	1 & 2, 3 & 4
200MHz	66MHz	3x	Open	3 & 4
233MHz	66MHz	3.5x	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP3	JP14
75MHz	50MHz	1.5x	1 & 2, 3 & 4, 5 & 6	Open
90MHz	60MHz	1.5x	1 & 2	Open
100MHz	66MHz	1.5x	Open	Open
120MHz	60MHz	2x	1 & 2	1 & 2
133MHz	66MHz	2x	Open	1 & 2
150MHz	60MHz	2.5x	1 & 2	1 & 2, 3 & 4
166MHz	66MHz	2.5x	Open	1 & 2, 3 & 4
200MHz	66MHz	3x	Open	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP3	JP14
166MHz	66MHz	2.5x	Open	1 & 2, 3 & 4
200MHz	66MHz	3x	Open	3 & 4
233MHz	66MHz	3.5x	Open	Open
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage		JP13/pins 1 & 2	JP13/pins 3 & 4	JP13/pins 5 & 6	JP13/pins 7 & 8
	2.0v	Closed	Closed	Closed	Closed
	2.1v	Open	Closed	Closed	Closed
	2.2v	Closed	Open	Closed	Closed
	2.3v	Open	Open	Closed	Closed
	2.4v	Closed	Closed	Open	Closed
	2.5v	Open	Closed	Open	Closed
	2.6v	Closed	Open	Open	Closed
	2.7v	Open	Open	Open	Closed
»	2.8v	Closed	Closed	Closed	Open
	2.9v	Open	Closed	Closed	Open
	3.0v	Closed	Open	Closed	Open
	3.1v	Open	Open	Closed	Open
	3.2v	Closed	Closed	Open	Open
	3.3v	Open	Closed	Open	Open
	3.4v	Closed	Open	Open	Open
	3.5v	Open	Open	Open	Open

SERIAL PORT 2 SELECTION
Setting		JP4	JP5	JP6	JP7	JP8
»	RS-232	5 & 6	1 & 2	1 & 2	1 & 2	1 & 2
	RS-422	3 & 4	2 & 3	2 & 3	2 & 3	2 & 3
	RS-485	1 & 2	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position.

WATCHDOG TIME OUT SELECTION
Seconds		JP9A	JP9B	JP9C	JP9D
	.5	Pins 1 & 2 closed	Open	Open	Open
	1	Open	Pins 1 & 2 closed	Open	Open
	2	Open	Open	Pins 1 & 2 closed	Open
»	4	Open	Open	Open	Pins 1 & 2 closed
	8	Open	Open	Open	Pins 2 & 3 closed
	16	Open	Open	Pins 2 & 3 closed	Open
	32	Open	Pins 2 & 3 closed	Open	Open
	64	Pins 2 & 3 closed	Open	Open	Open

WATCHDOG SELECTION
Setting		J7
»	Reset system	Pins 2 & 3 closed
	NMI system	Pins 1 & 2 closed
	Disabled	Open

DISK ON CHIP ADDRESS SELECTION
Address		JP12
»	Disabled	Pins 2 & 4 closed
	C8000	Pins 1 & 2 closed
	D0000	Pins 3 & 4 closed
	D8000	Pins 5 & 6 closed