5EA5/A5C Motherboard Settings and Configuration

SOYO COMPUTER CO., LTD.

5EA5/A5C

Processor
CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium
Processor Speed
75/90/100/120/133/150/166/180/200/233/266MHz
Chip Set
Unidentified
Video Chip Set
None
Maximum Onboard Memory
256MB (EDO supported)
Maximum Video Memory
None
Cache
512KB
BIOS
Unidentified
Dimensions
254mm x 218mm
I/O Options
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
PS/2 mouse port
CN1
Serial port 1
CN9
Floppy drive interface
CN2
Power LED & keylock
J17
USB connector
CN3
Speaker
J18
Serial port 2
CN4
Reset switch
J19
IR connector
CN5
Green PC connector
J23
Parallel port
CN6
IDE interface LED
J24
IDE interface 2
CN7
32-bit PCI slots
PC1 - PC3
IDE interface 1
CN8

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP5
Pins 1 & 2 closed

CMOS memory clear
JP5
Pins 2 & 3 closed
»
PCI bus select synchronous
JP16
Pins 1 & 2 closed

PCI bus select asynchronous
JP16
Pins 2 & 3 closed
EMI signals disabled
JP25
Closed

EMI signals enabled
JP25
Open

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
Note: Board accepts EDO memory. Banks are interchangeable.

DIMM CONFIGURATION
Size
Bank 0
8MB
(1) 1M x 64
16MB
(1) 2M x 64
32MB
(1) 4M x 64
64MB
(1) 8M x 64

CACHE CONFIGURATION
Size
Bank 0
TAG
512KB
(2) 64K x 32
(1) 16K x 8

CPU SPEED SELECTION (CX 6X86/6X 86L)
CPU speed
Clock speed
Multiplier
JP10
JP11
JP12
JP13
JP14
120MHz
50MHz
2x
2 & 3
2 & 3
2 & 3
Closed
Open
133MHz
55MHz
2x
1 & 2
2 & 3
2 & 3
Closed
Open
150MHz
60MHz
2x
1 & 2
2 & 3
2 & 3
Closed
Open
166MHz
66MHz
2x
2 & 3
1 & 2
2 & 3
Closed
Open
200MHz
75MHz
2x
1 & 2
2 & 3
1 & 2
Closed
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed
Clock speed
Multiplier
JP10
JP11
JP12
JP13
JP14
166MHz
66MHz
2.5x
2 & 3
2 & 3
1 & 2
Closed
Closed
200MHz
66MHz
2.5x
2 & 3
1 & 2
2 & 3
Closed
Closed
233MHz
66MHz
3x
2 & 3
1 & 2
2 & 3
Open
Closed
233MHz
75MHz
2.5x
1 & 2
2 & 3
1 & 2
Closed
Closed
266MHz
75MHz
3x
1 & 2
2 & 3
1 & 2
Open
Closed
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed
Clock speed
Multiplier
JP10
JP11
JP12
JP13
JP14
75MHz
50MHz
1.5x
2 & 3
2 & 3
2 & 3
Open
Open
90MHz
60MHz
1.5x
1 & 2
2 & 3
2 & 3
Open
Open
100MHz
66MHz
1.5x
2 & 3
1 & 2
2 & 3
Open
Open
120MHz
60MHz
1.5x
1 & 2
2 & 3
2 & 3
Open
Open
133MHz
66MHz
1.5x
2 & 3
1 & 2
2 & 3
Open
Open
150MHz
60MHz
2x
1 & 2
2 & 3
2 & 3
Closed
Open
166MHz
66MHz
2.5x
2 & 3
1 & 2
2 & 3
Closed
Closed
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed
Clock speed
Multiplier
JP10
JP11
JP12
JP13
JP14
150MHz
60MHz
2x
1 & 2
2 & 3
2 & 3
Closed
Open
166MHz
66MHz
2.5x
2 & 3
1 & 2
2 & 3
Closed
Closed
200MHz
66MHz
3x
2 & 3
1 & 2
2 & 3
Open
Closed
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
JP10
JP11
JP12
JP13
JP14
75MHz
50MHz
1.5x
2 & 3
2 & 3
2 & 3
Open
Open
90MHz
60MHz
1.5x
1 & 2
2 & 3
2 & 3
Open
Open
100MHz
66MHz
1.5x
2 & 3
1 & 2
2 & 3
Open
Open
120MHz
60MHz
2x
1 & 2
2 & 3
2 & 3
Closed
Open
133MHz
66MHz
2x
2 & 3
1 & 2
2 & 3
Closed
Open
150MHz
60MHz
2.5x
1 & 2
2 & 3
2 & 3
Closed
Closed
166MHz
66MHz
2.5x
2 & 3
1 & 2
2 & 3
Closed
Closed
180MHz
60MHz
3x
1 & 2
2 & 3
2 & 3
Open
Closed
200MHz
66MHz
3x
2 & 3
1 & 2
2 & 3
Open
Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage
JP30
JP31
JP32

3.3v
Open
1 & 2, 3 & 4
1 & 2
»
3.52v
Open
1 & 2, 3 & 4
3 & 4
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (DUAL)
Voltage
JP30
JP31
JP32
»
2.8v
1 & 2, 3 & 4
Open
5 & 6

2.9v
1 & 2, 3 & 4
Open
7 & 8
Note: Pins designated should be in the closed position.

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Processor	CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium
Processor Speed	75/90/100/120/133/150/166/180/200/233/266MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	256MB (EDO supported)
Maximum Video Memory	None
Cache	512KB
BIOS	Unidentified
Dimensions	254mm x 218mm
I/O Options	32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	CN1	Serial port 1	CN9
Floppy drive interface	CN2	Power LED & keylock	J17
USB connector	CN3	Speaker	J18
Serial port 2	CN4	Reset switch	J19
IR connector	CN5	Green PC connector	J23
Parallel port	CN6	IDE interface LED	J24
IDE interface 2	CN7	32-bit PCI slots	PC1 - PC3
IDE interface 1	CN8

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP5	Pins 1 & 2 closed
	CMOS memory clear	JP5	Pins 2 & 3 closed
»	PCI bus select synchronous	JP16	Pins 1 & 2 closed
	PCI bus select asynchronous	JP16	Pins 2 & 3 closed
	EMI signals disabled	JP25	Closed
	EMI signals enabled	JP25	Open

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
Note: Board accepts EDO memory. Banks are interchangeable.

DIMM CONFIGURATION
Size	Bank 0
8MB	(1) 1M x 64
16MB	(1) 2M x 64
32MB	(1) 4M x 64
64MB	(1) 8M x 64

CACHE CONFIGURATION
Size	Bank 0	TAG
512KB	(2) 64K x 32	(1) 16K x 8

CPU SPEED SELECTION (CX 6X86/6X 86L)
CPU speed	Clock speed	Multiplier	JP10	JP11	JP12	JP13	JP14
120MHz	50MHz	2x	2 & 3	2 & 3	2 & 3	Closed	Open
133MHz	55MHz	2x	1 & 2	2 & 3	2 & 3	Closed	Open
150MHz	60MHz	2x	1 & 2	2 & 3	2 & 3	Closed	Open
166MHz	66MHz	2x	2 & 3	1 & 2	2 & 3	Closed	Open
200MHz	75MHz	2x	1 & 2	2 & 3	1 & 2	Closed	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed	Clock speed	Multiplier	JP10	JP11	JP12	JP13	JP14
166MHz	66MHz	2.5x	2 & 3	2 & 3	1 & 2	Closed	Closed
200MHz	66MHz	2.5x	2 & 3	1 & 2	2 & 3	Closed	Closed
233MHz	66MHz	3x	2 & 3	1 & 2	2 & 3	Open	Closed
233MHz	75MHz	2.5x	1 & 2	2 & 3	1 & 2	Closed	Closed
266MHz	75MHz	3x	1 & 2	2 & 3	1 & 2	Open	Closed
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP10	JP11	JP12	JP13	JP14
75MHz	50MHz	1.5x	2 & 3	2 & 3	2 & 3	Open	Open
90MHz	60MHz	1.5x	1 & 2	2 & 3	2 & 3	Open	Open
100MHz	66MHz	1.5x	2 & 3	1 & 2	2 & 3	Open	Open
120MHz	60MHz	1.5x	1 & 2	2 & 3	2 & 3	Open	Open
133MHz	66MHz	1.5x	2 & 3	1 & 2	2 & 3	Open	Open
150MHz	60MHz	2x	1 & 2	2 & 3	2 & 3	Closed	Open
166MHz	66MHz	2.5x	2 & 3	1 & 2	2 & 3	Closed	Closed
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP10	JP11	JP12	JP13	JP14
150MHz	60MHz	2x	1 & 2	2 & 3	2 & 3	Closed	Open
166MHz	66MHz	2.5x	2 & 3	1 & 2	2 & 3	Closed	Closed
200MHz	66MHz	3x	2 & 3	1 & 2	2 & 3	Open	Closed
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP10	JP11	JP12	JP13	JP14
75MHz	50MHz	1.5x	2 & 3	2 & 3	2 & 3	Open	Open
90MHz	60MHz	1.5x	1 & 2	2 & 3	2 & 3	Open	Open
100MHz	66MHz	1.5x	2 & 3	1 & 2	2 & 3	Open	Open
120MHz	60MHz	2x	1 & 2	2 & 3	2 & 3	Closed	Open
133MHz	66MHz	2x	2 & 3	1 & 2	2 & 3	Closed	Open
150MHz	60MHz	2.5x	1 & 2	2 & 3	2 & 3	Closed	Closed
166MHz	66MHz	2.5x	2 & 3	1 & 2	2 & 3	Closed	Closed
180MHz	60MHz	3x	1 & 2	2 & 3	2 & 3	Open	Closed
200MHz	66MHz	3x	2 & 3	1 & 2	2 & 3	Open	Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)
Voltage		JP30	JP31	JP32
	3.3v	Open	1 & 2, 3 & 4	1 & 2
»	3.52v	Open	1 & 2, 3 & 4	3 & 4
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (DUAL)
Voltage		JP30	JP31	JP32
»	2.8v	1 & 2, 3 & 4	Open	5 & 6
	2.9v	1 & 2, 3 & 4	Open	7 & 8
Note: Pins designated should be in the closed position.