AP57 Motherboard Settings and Configuration

ACER, INC.

AP57

Device Type
Mainboard
Processor
CX 6X86/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed
75/90/100/120/133/150/166/200/233MHz
Chip Set
SIS
Video Chip Set
None
Maximum Onboard Memory
256MB (EDO supported)
Maximum Video Memory
None
Cache
256/512KB
BIOS
Award
Dimensions
250mm x 220mm
I/O Options
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
C1/pins 1 – 5
Parallel port
CN3
Speaker
C1/pins 7 – 10
Floppy drive interface
CN4
Green PC LED
C1/pins 12 & 13
IDE interface 2
CN5
Green PC connector
C1/pins 15 – 17
IDE interface 1
CN6
Reset switch
C1/pins 19 & 20
PS/2 mouse interface
CN7
IDE interface LED
C2
IR connector
IR1
CPU fan power
C3
32-bit PCI slots
PC1 – PC4
Serial port 1
CN1
USB connector
USB
Serial port 2
CN2

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP14
Pins 1 & 2 closed

CMOS memory clear
JP14
Pins 2 & 3 closed
»
On board I/O enabled
JP18
Pins 1 & 2 closed

On board I/O disabled
JP18
Pins 2 & 3 closed
»
PS/2 mouse enabled
JP20
Pins 1 & 2 closed

PS/2 mouse disabled
JP20
Pins 2 & 3 closed

CPU burst mode select linear
JP22
Pins 1 & 2 closed

CPU burst mode select toggle
JP22
Pins 2 & 3 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

SIMM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
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
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size
Bank 0
256KB
(2) 32K x 32
512KB
(2) 64K x 32

CPU SPEED SELECTION (CX 6X86)
CPU speed
Clock speed
Multiplier
JP1
JP2
JP3
JP4
JP13
120MHz
50MHz
2x
1 & 2
1 & 2
2 & 3
2 & 3
1 & 2, 5 & 6
150MHz
60MHz
2x
2 & 3
1 & 2
1 & 2
2 & 3
1 & 2, 3 & 4
166MHz
66MHz
2x
2 & 3
1 & 2
2 & 3
1 & 2
3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed
Clock speed
Multiplier
JP1
JP2
JP3
JP4
JP13
90MHz
60MHz
1.5x
1 & 2
1 & 2
1 & 2
2 & 3
1 & 2, 3 & 4
100MHz
66MHz
1.5x
1 & 2
1 & 2
2 & 3
1 & 2
3 & 4
120MHz
60MHz
1.5x
1 & 2
1 & 2
1 & 2
2 & 3
1 & 2, 3 & 4
133MHz
66MHz
1.5x
1 & 2
1 & 2
2 & 3
1 & 2
3 & 4
166MHz
66MHz
1.75x
2 & 3
2 & 3
2 & 3
1 & 2
3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed
Clock speed
Multiplier
JP1
JP2
JP3
JP4
JP13
166MHz
66MHz
2.5x
2 & 3
2 & 3
2 & 3
1 & 2
3 & 4
200MHz
66MHz
3x
1 & 2
2 & 3
2 & 3
1 & 2
3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
JP1
JP2
JP3
JP4
JP13
75MHz
50MHz
1.5x
1 & 2
1 & 2
2 & 3
2 & 3
1 & 2, 5 & 6
90MHz
60MHz
1.5x
1 & 2
1 & 2
1 & 2
2 & 3
1 & 2, 3 & 4
100MHz
66MHz
1.5x
1 & 2
1 & 2
2 & 3
1 & 2
3 & 4
120MHz
60MHz
2x
2 & 3
1 & 2
1 & 2
2 & 3
1 & 2, 3 & 4
133MHz
66MHz
2x
2 & 3
1 & 2
2 & 3
1 & 2
3 & 4
150MHz
60MHz
2.5x
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2, 3 & 4
166MHz
66MHz
2.5x
2 & 3
2 & 3
2 & 3
1 & 2
3 & 4
200MHz
66MHz
3x
1 & 2
2 & 3
2 & 3
1 & 2
3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed
Clock speed
Multiplier
JP1
JP2
JP3
JP4
JP13
150MHz
60MHz
2.5x
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2, 3 & 4
166MHz
66MHz
2.5x
2 & 3
2 & 3
2 & 3
1 & 2
3 & 4
200MHz
66MHz
3x
1 & 2
2 & 3
2 & 3
1 & 2
3 & 4
233MHz
66MHz
3.5x
1 & 2
1 & 2
2 & 3
1 & 2
3 & 4
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage
JP7
JP8
JP9
JP10
JP11
3.45v
1 & 2
1 & 2
Closed
Open
Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (DUAL)
Voltage
V core
JP7
JP8
JP9
JP10
JP11
3.45v
2.8v
7 & 8
1 & 2
Open
Closed
Open
3.45v
2.9v
5 & 6
1 & 2
Open
Closed
Open
3.45v
3.52v
3 & 4
1 & 2
Closed
Open
Closed
Note: Pins designated should be in the closed position.

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AP57 Motherboard Settings and Configuration

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Device Type	Mainboard
Processor	CX 6X86/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed	75/90/100/120/133/150/166/200/233MHz
Chip Set	SIS
Video Chip Set	None
Maximum Onboard Memory	256MB (EDO supported)
Maximum Video Memory	None
Cache	256/512KB
BIOS	Award
Dimensions	250mm x 220mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	C1/pins 1 – 5	Parallel port	CN3
Speaker	C1/pins 7 – 10	Floppy drive interface	CN4
Green PC LED	C1/pins 12 & 13	IDE interface 2	CN5
Green PC connector	C1/pins 15 – 17	IDE interface 1	CN6
Reset switch	C1/pins 19 & 20	PS/2 mouse interface	CN7
IDE interface LED	C2	IR connector	IR1
CPU fan power	C3	32-bit PCI slots	PC1 – PC4
Serial port 1	CN1	USB connector	USB
Serial port 2	CN2

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP14	Pins 1 & 2 closed
	CMOS memory clear	JP14	Pins 2 & 3 closed
»	On board I/O enabled	JP18	Pins 1 & 2 closed
	On board I/O disabled	JP18	Pins 2 & 3 closed
»	PS/2 mouse enabled	JP20	Pins 1 & 2 closed
	PS/2 mouse disabled	JP20	Pins 2 & 3 closed
	CPU burst mode select linear	JP22	Pins 1 & 2 closed
	CPU burst mode select toggle	JP22	Pins 2 & 3 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

SIMM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
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
Note: Board accepts EDO memory.

CACHE CONFIGURATION
Size	Bank 0
256KB	(2) 32K x 32
512KB	(2) 64K x 32

CPU SPEED SELECTION (CX 6X86)
CPU speed	Clock speed	Multiplier	JP1	JP2	JP3	JP4	JP13
120MHz	50MHz	2x	1 & 2	1 & 2	2 & 3	2 & 3	1 & 2, 5 & 6
150MHz	60MHz	2x	2 & 3	1 & 2	1 & 2	2 & 3	1 & 2, 3 & 4
166MHz	66MHz	2x	2 & 3	1 & 2	2 & 3	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP1	JP2	JP3	JP4	JP13
90MHz	60MHz	1.5x	1 & 2	1 & 2	1 & 2	2 & 3	1 & 2, 3 & 4
100MHz	66MHz	1.5x	1 & 2	1 & 2	2 & 3	1 & 2	3 & 4
120MHz	60MHz	1.5x	1 & 2	1 & 2	1 & 2	2 & 3	1 & 2, 3 & 4
133MHz	66MHz	1.5x	1 & 2	1 & 2	2 & 3	1 & 2	3 & 4
166MHz	66MHz	1.75x	2 & 3	2 & 3	2 & 3	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP1	JP2	JP3	JP4	JP13
166MHz	66MHz	2.5x	2 & 3	2 & 3	2 & 3	1 & 2	3 & 4
200MHz	66MHz	3x	1 & 2	2 & 3	2 & 3	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP1	JP2	JP3	JP4	JP13
75MHz	50MHz	1.5x	1 & 2	1 & 2	2 & 3	2 & 3	1 & 2, 5 & 6
90MHz	60MHz	1.5x	1 & 2	1 & 2	1 & 2	2 & 3	1 & 2, 3 & 4
100MHz	66MHz	1.5x	1 & 2	1 & 2	2 & 3	1 & 2	3 & 4
120MHz	60MHz	2x	2 & 3	1 & 2	1 & 2	2 & 3	1 & 2, 3 & 4
133MHz	66MHz	2x	2 & 3	1 & 2	2 & 3	1 & 2	3 & 4
150MHz	60MHz	2.5x	2 & 3	2 & 3	1 & 2	2 & 3	1 & 2, 3 & 4
166MHz	66MHz	2.5x	2 & 3	2 & 3	2 & 3	1 & 2	3 & 4
200MHz	66MHz	3x	1 & 2	2 & 3	2 & 3	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP1	JP2	JP3	JP4	JP13
150MHz	60MHz	2.5x	2 & 3	2 & 3	1 & 2	2 & 3	1 & 2, 3 & 4
166MHz	66MHz	2.5x	2 & 3	2 & 3	2 & 3	1 & 2	3 & 4
200MHz	66MHz	3x	1 & 2	2 & 3	2 & 3	1 & 2	3 & 4
233MHz	66MHz	3.5x	1 & 2	1 & 2	2 & 3	1 & 2	3 & 4
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage	JP7	JP8	JP9	JP10	JP11
3.45v	1 & 2	1 & 2	Closed	Open	Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (DUAL)
Voltage	V core	JP7	JP8	JP9	JP10	JP11
3.45v	2.8v	7 & 8	1 & 2	Open	Closed	Open
3.45v	2.9v	5 & 6	1 & 2	Open	Closed	Open
3.45v	3.52v	3 & 4	1 & 2	Closed	Open	Closed
Note: Pins designated should be in the closed position.