5TXC Motherboard Settings and Configuration

J-MARK COMPUTER CORPORATION

5TXC

Processor
CX 6X86/CX 6X86/CX 686MX/IBM 6X86/AM K5/AM K6/Pentium
Processor Speed
90/100/120/133/150/166/200/233/266/300MHz
Chip Set
Intel
Video Chip Set
None
Maximum Onboard Memory
512MB (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 connectors (2), ATX power connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
ATX power connector
ATX
Parallel port
J3
Serial port 2
CN1
Floppy drive interface
J6
Serial port 1
CN2
IDE interface 1
J9
Power LED & keylock
C1
IDE interface 2
J10
Speaker
C2
IR connector
J15
Reset switch
C3
USB connector 1
J16
Turbo LED
C4
USB connector 2
J17
Turbo switch
C5
Soft off power supply
J20
CPU fan power
C6
IDE interface LED
J21/pins 1 & 3
Chassis fan power
FAN2
Green PC connector
J21/pins 2 & 4
Chassis fan power
FAN3
32-bit PCI slots
PC1 – PC4
PS/2 mouse interface
J1

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
CMOS memory normal operation
JP2
Pins 2 & 3 closed

CMOS memory clear
JP2
Pins 3 & 4 closed

Flash BIOS voltage select 12v
JP3
Pins 1 & 2 closed

Flash BIOS voltage select 5v
JP3
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
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 0
Bank 1
32MB
(1) 2M x 64
(1) 2M x 64
48MB
(1) 2M x 64
(1) 4M x 64
64MB
(1) 4M x 64
(1) 4M x 64
128MB
(1) 8M x 64
(1) 8M x 64
256MB
(1) 16M x 64
(1) 16M x 64
512MB
(1) 32M x 64
(1) 32M x 64

CACHE CONFIGURATION
Size
Bank 0
TAG
256KB
(2) 32K x 32
(1) 32K x 8
512KB
(2) 64K x 32
(1) 32K x 8

CPU SPEED SELECTION (CX 6X86)
CPU speed
Clock speed
Multiplier
U22/1
U22/2
U22/3
U22/4
U22/5
U22/6
150MHz
60MHz
2x
Off
Off
On
Off
Off
On
166MHz
66MHz
2x
Off
Off
On
Off
Off
Off
200MHz
75MHz
2x
Off
Off
On
Off
On
Off

CPU SPEED SELECTION (CX 6X86MX)
CPU speed
Clock speed
Multiplier
U22/1
U22/2
U22/3
U22/4
U22/5
U22/6
166MHz
66MHz
2.5x
Off
On
On
Off
Off
On
200MHz
75MHz
2x
Off
Off
On
Off
On
Off
233MHz
66MHz
3x
Off
On
Off
Off
Off
Off

CPU SPEED SELECTION (IBM 6X86)
CPU speed
Clock speed
Multiplier
U22/1
U22/2
U22/3
U22/4
U22/5
U22/6
150MHz
60MHz
2x
Off
Off
On
Off
Off
On
166MHz
66MHz
2x
Off
Off
On
Off
Off
Off
200MHz
75MHz
2x
Off
Off
On
Off
On
Off

CPU SPEED SELECTION (AM K5)
CPU speed
Clock speed
Multiplier
U22/1
U22/2
U22/3
U22/4
U22/5
U22/6
100MHz
66MHz
1.5x
Off
Off
Off
Off
Off
Off
133MHz
66MHz
1.5x
Off
Off
Off
Off
Off
Off
166MHz
66MHz
2.5x
Off
On
On
Off
Off
Off

CPU SPEED SELECTION (AM K6)
CPU speed
Clock speed
Multiplier
U22/1
U22/2
U22/3
U22/4
U22/5
U22/6
166MHz
66MHz
2.5x
Off
On
On
Off
Off
Off
200MHz
66MHz
3x
Off
On
Off
Off
Off
Off
233MHz
66MHz
3.5x
Off
Off
Off
Off
Off
Off
266MHz
66MHz
4x
On
Off
On
Off
Off
Off
300MHz
66MHz
4.5x
On
On
On
Off
Off
Off

CPU SPEED SELECTION (INTEL)
CPU speed
Clock speed
Multiplier
U22/1
U22/2
U22/3
U22/4
U22/5
U22/6
90MHz
60MHz
1.5x
Off
Off
Off
Off
Off
On
100MHz
66MHz
1.5x
Off
Off
Off
Off
Off
Off
120MHz
60MHz
2x
Off
Off
On
Off
Off
On
133MHz
66MHz
2x
Off
Off
On
Off
Off
Off
150MHz
60MHz
2.5x
Off
On
On
Off
Off
On
166MHz
66MHz
2.5x
Off
On
On
Off
Off
Off
200MHz
66MHz
3x
Off
On
Off
Off
Off
Off
233MHz
66MHz
3.5x
Off
Off
Off
Off
Off
Off

CPU VOLTAGE SELECTION
Voltage
JP4
2.1v
Pins 1 & 2 closed
2.8v
Pins 7 & 8 closed
2.9v
Pins 1 & 2, 7 & 8 closed
3.2v
Pins 5 & 6, 7 & 8 closed
3.3v
Pins 1 & 2, 5 & 6, 7 & 8 closed
3.45v
Pins 3 & 4, 5 & 6, 7 & 8 closed
3.52v
Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed

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5TXC Motherboard Settings and Configuration

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Processor	CX 6X86/CX 6X86/CX 686MX/IBM 6X86/AM K5/AM K6/Pentium
Processor Speed	90/100/120/133/150/166/200/233/266/300MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	512MB (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 connectors (2), ATX power connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	Parallel port	J3
Serial port 2	CN1	Floppy drive interface	J6
Serial port 1	CN2	IDE interface 1	J9
Power LED & keylock	C1	IDE interface 2	J10
Speaker	C2	IR connector	J15
Reset switch	C3	USB connector 1	J16
Turbo LED	C4	USB connector 2	J17
Turbo switch	C5	Soft off power supply	J20
CPU fan power	C6	IDE interface LED	J21/pins 1 & 3
Chassis fan power	FAN2	Green PC connector	J21/pins 2 & 4
Chassis fan power	FAN3	32-bit PCI slots	PC1 – PC4
PS/2 mouse interface	J1

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP2	Pins 2 & 3 closed
	CMOS memory clear	JP2	Pins 3 & 4 closed
	Flash BIOS voltage select 12v	JP3	Pins 1 & 2 closed
	Flash BIOS voltage select 5v	JP3	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
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 0	Bank 1
32MB	(1) 2M x 64	(1) 2M x 64
48MB	(1) 2M x 64	(1) 4M x 64
64MB	(1) 4M x 64	(1) 4M x 64
128MB	(1) 8M x 64	(1) 8M x 64
256MB	(1) 16M x 64	(1) 16M x 64
512MB	(1) 32M x 64	(1) 32M x 64

CACHE CONFIGURATION
Size	Bank 0	TAG
256KB	(2) 32K x 32	(1) 32K x 8
512KB	(2) 64K x 32	(1) 32K x 8

CPU SPEED SELECTION (CX 6X86)
CPU speed	Clock speed	Multiplier	U22/1	U22/2	U22/3	U22/4	U22/5	U22/6
150MHz	60MHz	2x	Off	Off	On	Off	Off	On
166MHz	66MHz	2x	Off	Off	On	Off	Off	Off
200MHz	75MHz	2x	Off	Off	On	Off	On	Off

CPU SPEED SELECTION (CX 6X86MX)
CPU speed	Clock speed	Multiplier	U22/1	U22/2	U22/3	U22/4	U22/5	U22/6
166MHz	66MHz	2.5x	Off	On	On	Off	Off	On
200MHz	75MHz	2x	Off	Off	On	Off	On	Off
233MHz	66MHz	3x	Off	On	Off	Off	Off	Off

CPU SPEED SELECTION (IBM 6X86)
CPU speed	Clock speed	Multiplier	U22/1	U22/2	U22/3	U22/4	U22/5	U22/6
150MHz	60MHz	2x	Off	Off	On	Off	Off	On
166MHz	66MHz	2x	Off	Off	On	Off	Off	Off
200MHz	75MHz	2x	Off	Off	On	Off	On	Off

CPU SPEED SELECTION (AM K5)
CPU speed	Clock speed	Multiplier	U22/1	U22/2	U22/3	U22/4	U22/5	U22/6
100MHz	66MHz	1.5x	Off	Off	Off	Off	Off	Off
133MHz	66MHz	1.5x	Off	Off	Off	Off	Off	Off
166MHz	66MHz	2.5x	Off	On	On	Off	Off	Off

CPU SPEED SELECTION (AM K6)
CPU speed	Clock speed	Multiplier	U22/1	U22/2	U22/3	U22/4	U22/5	U22/6
166MHz	66MHz	2.5x	Off	On	On	Off	Off	Off
200MHz	66MHz	3x	Off	On	Off	Off	Off	Off
233MHz	66MHz	3.5x	Off	Off	Off	Off	Off	Off
266MHz	66MHz	4x	On	Off	On	Off	Off	Off
300MHz	66MHz	4.5x	On	On	On	Off	Off	Off

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	U22/1	U22/2	U22/3	U22/4	U22/5	U22/6
90MHz	60MHz	1.5x	Off	Off	Off	Off	Off	On
100MHz	66MHz	1.5x	Off	Off	Off	Off	Off	Off
120MHz	60MHz	2x	Off	Off	On	Off	Off	On
133MHz	66MHz	2x	Off	Off	On	Off	Off	Off
150MHz	60MHz	2.5x	Off	On	On	Off	Off	On
166MHz	66MHz	2.5x	Off	On	On	Off	Off	Off
200MHz	66MHz	3x	Off	On	Off	Off	Off	Off
233MHz	66MHz	3.5x	Off	Off	Off	Off	Off	Off

CPU VOLTAGE SELECTION
Voltage	JP4
2.1v	Pins 1 & 2 closed
2.8v	Pins 7 & 8 closed
2.9v	Pins 1 & 2, 7 & 8 closed
3.2v	Pins 5 & 6, 7 & 8 closed
3.3v	Pins 1 & 2, 5 & 6, 7 & 8 closed
3.45v	Pins 3 & 4, 5 & 6, 7 & 8 closed
3.52v	Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed