P5TX-AT Motherboard Settings and Configuration

EFA CORPORATION

P5TX-AT

Processor
CX M1/AM K5/AM K6/Pentium
Processor Speed
75/90/100/120/133/150/166/200MHz
Chip Set
Intel
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 port, serial ports (2), cache slot, IR connector, USB connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port 2
CN1
Speaker
J18/pins 1, 3, 5, 7
Serial port 1
CN2
Power LED & keylock
J18/pins 2, 4, 6, 8, 10
Parallel port
CN3
Turbo LED
J18/pins 11 & 12
Floppy drive interface
CN4
Green PC connector
J18/pins 13 & 14
IDE interface 2
CN5
IDE interface LED
J18/pins 15 & 16
IDE interface 1
CN6
Reset switch
J18/pins 17 & 18
USB connector
J2
Green PC LED
J18/pins 19 & 20
PS/2 mouse port
J3
32-bit PCI slots
PC1 – PC4
IR connector
J9
Cache slot
SL1
External battery
J10

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP15
Pins 1 & 2 closed

CMOS memory clear
JP15
Pins 2 & 3 closed

DRAM 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

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
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. Board also accepts x 32 SIMMs. Memory installed in Banks 1 & 2 is interchangeable.

DIMM CONFIGURATION
Size
Bank 0
Bank 1
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) 8M x 64
(1) 8M x 64

CACHE CONFIGURATION
Size
Bank 0
SL1
256KB
(2) 32K x 32
Not installed
512KB
(2) 32K x 32
256KB module installed

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

CPU SPEED SELECTION (CX M1)
CPU speed
Clock speed
Multiplier
JP2
JP3
JP4
JP9
JP10
120MHz
50MHz
2x
1 & 2
2 & 3
1 & 2
2 & 3
1 & 2
133MHz
60MHz
2x
2 & 3
2 & 3
1 & 2
2 & 3
1 & 2
150MHz
66MHz
2x
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
166MHz
60MHz
2x
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed
Clock speed
Multiplier
JP2
JP3
JP4
JP9
JP10
75MHz
50MHz
1.5x
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
90MHz
60MHz
1.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
100MHz
66MHz
1.5x
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
120MHz
60MHz
1.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
133MHz
66MHz
1.5x
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
150MHz
60MHz
1.75x
1 & 2
2 & 3
2 & 3
2 & 3
2 & 3
166MHz
66MHz
1.75x
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
200MHz
66MHz
2x
2 & 3
2 & 3
2 & 3
1 & 2
2 & 3
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
JP2
JP3
JP4
JP9
JP10
75MHz
50MHz
1.5x
1 & 2
2 & 3
1 & 2
1 & 2
1 & 2
90MHz
60MHz
1.5x
1 & 2
2 & 3
2 & 3
1 & 2
1 & 2
100MHz
66MHz
1.5x
2 & 3
2 & 3
2 & 3
1 & 2
1 & 2
120MHz
60MHz
2x
1 & 2
2 & 3
2 & 3
2 & 3
1 & 2
133MHz
66MHz
2x
2 & 3
2 & 3
2 & 3
2 & 3
1 & 2
150MHz
60MHz
2.5x
1 & 2
2 & 3
2 & 3
2 & 3
2 & 3
166MHz
66MHz
2.5x
2 & 3
2 & 3
2 & 3
2 & 3
2 & 3
200MHz
66MHz
3x
2 & 3
2 & 3
2 & 3
1 & 2
2 & 3
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
JP6
JP7
2.5v
Pins 1 & 2 closed
Pins 1 & 3, 2 & 4 closed
2.8v
Pins 3 & 4 closed
Pins 1 & 3, 2 & 4 closed
3.3v
Pins 2 & 4 closed
Pins 3 & 5, 4 & 6 closed
3.52v
Pins 5 & 6 closed
Pins 3 & 5, 4 & 6 closed

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P5TX-AT Motherboard Settings and Configuration

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Processor	CX M1/AM K5/AM K6/Pentium
Processor Speed	75/90/100/120/133/150/166/200MHz
Chip Set	Intel
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 port, serial ports (2), cache slot, IR connector, USB connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 2	CN1	Speaker	J18/pins 1, 3, 5, 7
Serial port 1	CN2	Power LED & keylock	J18/pins 2, 4, 6, 8, 10
Parallel port	CN3	Turbo LED	J18/pins 11 & 12
Floppy drive interface	CN4	Green PC connector	J18/pins 13 & 14
IDE interface 2	CN5	IDE interface LED	J18/pins 15 & 16
IDE interface 1	CN6	Reset switch	J18/pins 17 & 18
USB connector	J2	Green PC LED	J18/pins 19 & 20
PS/2 mouse port	J3	32-bit PCI slots	PC1 – PC4
IR connector	J9	Cache slot	SL1
External battery	J10

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP15	Pins 1 & 2 closed
	CMOS memory clear	JP15	Pins 2 & 3 closed

DRAM 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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
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. Board also accepts x 32 SIMMs. Memory installed in Banks 1 & 2 is interchangeable.

DIMM CONFIGURATION
Size	Bank 0	Bank 1
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) 8M x 64	(1) 8M x 64

CACHE CONFIGURATION
Size	Bank 0	SL1
256KB	(2) 32K x 32	Not installed
512KB	(2) 32K x 32	256KB module installed

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

CPU SPEED SELECTION (CX M1)
CPU speed	Clock speed	Multiplier	JP2	JP3	JP4	JP9	JP10
120MHz	50MHz	2x	1 & 2	2 & 3	1 & 2	2 & 3	1 & 2
133MHz	60MHz	2x	2 & 3	2 & 3	1 & 2	2 & 3	1 & 2
150MHz	66MHz	2x	1 & 2	2 & 3	2 & 3	2 & 3	1 & 2
166MHz	60MHz	2x	2 & 3	2 & 3	2 & 3	2 & 3	1 & 2
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	JP2	JP3	JP4	JP9	JP10
75MHz	50MHz	1.5x	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
90MHz	60MHz	1.5x	1 & 2	2 & 3	2 & 3	1 & 2	1 & 2
100MHz	66MHz	1.5x	2 & 3	2 & 3	2 & 3	1 & 2	1 & 2
120MHz	60MHz	1.5x	1 & 2	2 & 3	2 & 3	1 & 2	1 & 2
133MHz	66MHz	1.5x	2 & 3	2 & 3	2 & 3	1 & 2	1 & 2
150MHz	60MHz	1.75x	1 & 2	2 & 3	2 & 3	2 & 3	2 & 3
166MHz	66MHz	1.75x	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
200MHz	66MHz	2x	2 & 3	2 & 3	2 & 3	1 & 2	2 & 3
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP2	JP3	JP4	JP9	JP10
75MHz	50MHz	1.5x	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
90MHz	60MHz	1.5x	1 & 2	2 & 3	2 & 3	1 & 2	1 & 2
100MHz	66MHz	1.5x	2 & 3	2 & 3	2 & 3	1 & 2	1 & 2
120MHz	60MHz	2x	1 & 2	2 & 3	2 & 3	2 & 3	1 & 2
133MHz	66MHz	2x	2 & 3	2 & 3	2 & 3	2 & 3	1 & 2
150MHz	60MHz	2.5x	1 & 2	2 & 3	2 & 3	2 & 3	2 & 3
166MHz	66MHz	2.5x	2 & 3	2 & 3	2 & 3	2 & 3	2 & 3
200MHz	66MHz	3x	2 & 3	2 & 3	2 & 3	1 & 2	2 & 3
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage	JP6	JP7
2.5v	Pins 1 & 2 closed	Pins 1 & 3, 2 & 4 closed
2.8v	Pins 3 & 4 closed	Pins 1 & 3, 2 & 4 closed
3.3v	Pins 2 & 4 closed	Pins 3 & 5, 4 & 6 closed
3.52v	Pins 5 & 6 closed	Pins 3 & 5, 4 & 6 closed