P5TX-ATX Motherboard Settings and Configuration

EFA CORPORATION

P5TX-ATX

Device Type
Mainboard
Processor
CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed
90/100/120/133/150/166/200/233MHz
Chip Set
Intel
Video Chip Set
None
Maximum Onboard Memory
256MB (EDO & SDRAM supported)
Maximum Video Memory
None
Cache
256/512KB
BIOS
Award
Dimensions
305mm 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, ATX power connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
ATX power connector
ATX
Power LED & keylock
J15/pins 2/4/6/8/10
Serial port 2
CN1
Turbo LED
J15/pins 11 & 12
Parallel port
CN2
Green PC connector
J15/pins 13 & 14
PS/2 mouse port
CN3
IDE interface LED
J15/pins 15 & 16
Serial port 1
CN4
Reset switch
J15/pins 17 & 18
IDE interface 2
CN5
Green PC LED
J15/pins 19 & 20
IDE interface 1
CN6
IR connector
J19
Floppy drive interface
CN7
External battery
J20
Soft off power supply
J5
32-bit PCI slots
PC1 – PC4
Speaker
J15/pins1/3/5/7
USB connector
USB
Note: The location of J9 & J15 is unidentified.

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Factory configured - do not alter
JP3
Unidentified
»
Factory configured - do not alter
JP8
Unidentified
»
CMOS memory normal operation
JP9
Pins 1 & 2 closed

CMOS memory clear
JP9
Pins 2 & 3 closed
»
Factory configured - do not alter
JP11
Unidentified

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.

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
Note: Board accepts SDRAM 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
JP4
JP5
JP6
JP7
133MHz
55MHz
2x
2 & 3
1 & 2
Closed
Closed
150MHz
60MHz
2x
2 & 3
1 & 2
Closed
Open
166MHz
66MHz
2x
2 & 3
1 & 2
Open
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)
CPU speed
Clock speed
Multiplier
JP4
JP5
JP6
JP7
166MHz
66MHz
2x
2 & 3
1 & 2
Open
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed
Clock speed
Multiplier
JP4
JP5
JP6
JP7
166MHz
60MHz
2.5x
2 & 3
2 & 3
Closed
Open
166MHz
66MHz
2x
2 & 3
1 & 2
Open
Open
200MHz
66MHz
2.5x
2 & 3
2 & 3
Open
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed
Clock speed
Multiplier
JP4
JP5
JP6
JP7
90MHz
60MHz
1.5x
1 & 2
1 & 2
Closed
Open
100MHz
66MHz
1.5x
1 & 2
1 & 2
Open
Open
120MHz
60MHz
1.5x
1 & 2
1 & 2
Closed
Open
133MHz
66MHz
1.5x
1 & 2
1 & 2
Open
Open
150MHz
60MHz
2.5x
2 & 3
2 & 3
Closed
Open
166MHz
66MHz
2.5x
2 & 3
2 & 3
Open
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed
Clock speed
Multiplier
JP4
JP5
JP6
JP7
166MHz
66MHz
2.5x
2 & 3
2 & 3
Open
Open
200MHz
66MHz
3x
1 & 2
2 & 3
Open
Open
233MHz
66MHz
3.5x
1 & 2
1 & 2
Open
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
JP4
JP5
JP6
JP7
90MHz
60MHz
1.5x
1 & 2
1 & 2
Closed
Open
100MHz
66MHz
1.5x
1 & 2
1 & 2
Open
Open
120MHz
60MHz
2x
2 & 3
1 & 2
Closed
Open
133MHz
66MHz
2x
2 & 3
1 & 2
Open
Open
150MHz
60MHz
2.5x
2 & 3
2 & 3
Closed
Open
166MHz
66MHz
2.5x
2 & 3
2 & 3
Open
Open
200MHz
66MHz
3x
1 & 2
2 & 3
Open
Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed
Clock speed
Multiplier
JP4
JP5
JP6
JP7
166MHz
66MHz
2.5x
2 & 3
2 & 3
Open
Open
200MHz
66MHz
3x
1 & 2
2 & 3
Open
Open
233MHz
66MHz
3.5x
1 & 2
1 & 2
Open
Open
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
JP1
JP12
JP13
JP14
JP15
2.0v
*
1 & 2
1 & 2
1 & 2
1 & 2
2.5v
*
2 & 3
1 & 2
2 & 3
1 & 2
2.8v
3 & 5, 4 & 6
1 & 2
1 & 2
1 & 2
2 & 3
2.9v
3 & 5, 4 & 6
2 & 3
1 & 2
1 & 2
2 & 3
3.2v
3 & 5, 4 & 6
1 & 2
1 & 2
2 & 3
2 & 3
3.3v
1 & 3, 2 & 4
2 & 3
1 & 2
2 & 3
2 & 3
3.4v
*
1 & 2
2 & 3
2 & 3
2 & 3
3.52v
1 & 3, 2 & 4
2 & 3
2 & 3
2 & 3
2 & 3
Note: Pins designated should be in the closed position. * = Reserved for future CPUs.

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Device Type	Mainboard
Processor	CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed	90/100/120/133/150/166/200/233MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	256MB (EDO & SDRAM supported)
Maximum Video Memory	None
Cache	256/512KB
BIOS	Award
Dimensions	305mm 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, ATX power connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	Power LED & keylock	J15/pins 2/4/6/8/10
Serial port 2	CN1	Turbo LED	J15/pins 11 & 12
Parallel port	CN2	Green PC connector	J15/pins 13 & 14
PS/2 mouse port	CN3	IDE interface LED	J15/pins 15 & 16
Serial port 1	CN4	Reset switch	J15/pins 17 & 18
IDE interface 2	CN5	Green PC LED	J15/pins 19 & 20
IDE interface 1	CN6	IR connector	J19
Floppy drive interface	CN7	External battery	J20
Soft off power supply	J5	32-bit PCI slots	PC1 – PC4
Speaker	J15/pins1/3/5/7	USB connector	USB
Note: The location of J9 & J15 is unidentified.

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	JP3	Unidentified
»	Factory configured - do not alter	JP8	Unidentified
»	CMOS memory normal operation	JP9	Pins 1 & 2 closed
	CMOS memory clear	JP9	Pins 2 & 3 closed
»	Factory configured - do not alter	JP11	Unidentified

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.

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
Note: Board accepts SDRAM 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	JP4	JP5	JP6	JP7
133MHz	55MHz	2x	2 & 3	1 & 2	Closed	Closed
150MHz	60MHz	2x	2 & 3	1 & 2	Closed	Open
166MHz	66MHz	2x	2 & 3	1 & 2	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)
CPU speed	Clock speed	Multiplier	JP4	JP5	JP6	JP7
166MHz	66MHz	2x	2 & 3	1 & 2	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)
CPU speed	Clock speed	Multiplier	JP4	JP5	JP6	JP7
166MHz	60MHz	2.5x	2 & 3	2 & 3	Closed	Open
166MHz	66MHz	2x	2 & 3	1 & 2	Open	Open
200MHz	66MHz	2.5x	2 & 3	2 & 3	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP4	JP5	JP6	JP7
90MHz	60MHz	1.5x	1 & 2	1 & 2	Closed	Open
100MHz	66MHz	1.5x	1 & 2	1 & 2	Open	Open
120MHz	60MHz	1.5x	1 & 2	1 & 2	Closed	Open
133MHz	66MHz	1.5x	1 & 2	1 & 2	Open	Open
150MHz	60MHz	2.5x	2 & 3	2 & 3	Closed	Open
166MHz	66MHz	2.5x	2 & 3	2 & 3	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	JP4	JP5	JP6	JP7
166MHz	66MHz	2.5x	2 & 3	2 & 3	Open	Open
200MHz	66MHz	3x	1 & 2	2 & 3	Open	Open
233MHz	66MHz	3.5x	1 & 2	1 & 2	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP4	JP5	JP6	JP7
90MHz	60MHz	1.5x	1 & 2	1 & 2	Closed	Open
100MHz	66MHz	1.5x	1 & 2	1 & 2	Open	Open
120MHz	60MHz	2x	2 & 3	1 & 2	Closed	Open
133MHz	66MHz	2x	2 & 3	1 & 2	Open	Open
150MHz	60MHz	2.5x	2 & 3	2 & 3	Closed	Open
166MHz	66MHz	2.5x	2 & 3	2 & 3	Open	Open
200MHz	66MHz	3x	1 & 2	2 & 3	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)
CPU speed	Clock speed	Multiplier	JP4	JP5	JP6	JP7
166MHz	66MHz	2.5x	2 & 3	2 & 3	Open	Open
200MHz	66MHz	3x	1 & 2	2 & 3	Open	Open
233MHz	66MHz	3.5x	1 & 2	1 & 2	Open	Open
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage	JP1	JP12	JP13	JP14	JP15
2.0v	*	1 & 2	1 & 2	1 & 2	1 & 2
2.5v	*	2 & 3	1 & 2	2 & 3	1 & 2
2.8v	3 & 5, 4 & 6	1 & 2	1 & 2	1 & 2	2 & 3
2.9v	3 & 5, 4 & 6	2 & 3	1 & 2	1 & 2	2 & 3
3.2v	3 & 5, 4 & 6	1 & 2	1 & 2	2 & 3	2 & 3
3.3v	1 & 3, 2 & 4	2 & 3	1 & 2	2 & 3	2 & 3
3.4v	*	1 & 2	2 & 3	2 & 3	2 & 3
3.52v	1 & 3, 2 & 4	2 & 3	2 & 3	2 & 3	2 & 3
Note: Pins designated should be in the closed position. * = Reserved for future CPUs.