J-MARK COMPUTER CORPORATION
J-5TXBR2
|
Device Type |
Mainboard |
|
Processor |
CX 6X86/IBM 6X86/CX 686MX/IBM 6X86MX/AM K5/AM K6/Pentium |
|
Processor Speed |
75/90/100/120/133/150/166/200/233/266/300MHz |
|
Chip Set |
Intel |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
256MB (EDO & SDRAM supported) |
|
Maximum Video Memory |
None |
|
Cache |
512KB |
|
BIOS |
Award |
|
Dimensions |
220mm 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 |
USB connector 1 |
J17 |
|
IDE interface LED |
C1 |
USB connector 2 |
J18 |
|
Green PC connector |
C2 |
CPU fan power |
J19 |
|
PS/2 mouse interface |
J1 |
Soft off power supply |
J20 |
|
Serial port 2 |
J6 |
Speaker |
J22/pins 1 - 4 |
|
Serial port 1 |
J7 |
Reset switch |
J22/pins 5 & 6 |
|
Floppy drive interface |
J8 |
Turbo LED |
J22/pins 7 & 8 |
|
IDE interface 1 |
J9 |
Power LED & keylock |
J22/pins 9 - 13 |
|
Parallel port |
J10 |
Turbo switch |
J22/pins 14 - 16 |
|
IDE interface 2 |
J11 |
32-bit PCI slots |
PC1 PC4 |
|
IR connector |
J16 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Flash BIOS voltage select 12v |
JP3 |
Pins 1 & 2 closed | |
|
Flash BIOS voltage select 5v |
JP3 |
Pins 2 & 3 closed | |
|
|
CMOS memory normal operation |
JP4 |
Pins 2 & 3 closed |
|
CMOS memory clear |
JP4 |
Pins 3 & 4 closed | |
|
SIMM CONFIGURATION | |
|
Size |
Bank 0 |
|
8MB |
(2) 1M x 36 |
|
16MB |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
|
64MB |
(2) 8M x 36 |
|
128MB |
(2) 16M x 36 |
|
256MB |
(2) 32M x 36 |
|
Note: Board accepts EDO memory. | |
|
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) 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 |
TAG |
|
512KB |
(1) 64K x 64 |
(1) 32K x 32 |
|
CPU SPEED SELECTION (CX 6X86) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
120MHz |
50MHz |
2x |
Pins 17 & 18 closed |
|
133MHz |
55MHz |
2x |
Pins 19 & 20 closed |
|
150MHz |
60MHz |
2x |
Pins 21 & 22 closed |
|
166MHz |
66MHz |
2x |
Pins 23 & 24 closed |
|
200MHz |
75MHz |
2x |
Pins 25 & 26 closed |
|
CPU SPEED SELECTION (IBM 6X86) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
120MHz |
50MHz |
2x |
Pins 17 & 18 closed |
|
133MHz |
55MHz |
2x |
Pins 19 & 20 closed |
|
150MHz |
60MHz |
2x |
Pins 21 & 22 closed |
|
166MHz |
66MHz |
2x |
Pins 23 & 24 closed |
|
200MHz |
75MHz |
2x |
Pins 25 & 26 closed |
|
CPU SPEED SELECTION (CX 6X86MX) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
166MHz |
66MHz |
2.5x |
Pins 11 & 12 closed |
|
200MHz |
66MHz |
2.5x |
Pins 13 & 14 closed |
|
200MHz |
75MHz |
2x |
Pins 25 & 26 closed |
|
233MHz |
66MHz |
3x |
Pins 15 & 16 closed |
|
CPU SPEED SELECTION (AM K5) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
90MHz |
60MHz |
1.5x |
Pins 3 & 4 closed |
|
100MHz |
66MHz |
1.5x |
Pins 5 & 6 closed |
|
133MHz |
66MHz |
1.5x |
Pins 5 & 6 closed |
|
166MHz |
66MHz |
2.5x |
Pins 13 & 14 closed |
|
CPU SPEED SELECTION (AM K6) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
166MHz |
66MHz |
2.5x |
Pins 13 & 14 closed |
|
200MHz |
66MHz |
3x |
Pins 15 & 16 closed |
|
266MHz |
66MHz |
4x |
Pins 27 & 28 closed |
|
300MHz |
66MHz |
4.5x |
Pins 29 & 30 closed |
|
CPU SPEED SELECTION (INTEL) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
75MHz |
50MHz |
1.5x |
Pins 1 & 2 closed |
|
90MHz |
60MHz |
1.5x |
Pins 3 & 4 closed |
|
100MHz |
66MHz |
1.5x |
Pins 5 & 6 closed |
|
120MHz |
60MHz |
2x |
Pins 7 & 8 closed |
|
133MHz |
66MHz |
2x |
Pins 9 & 10 closed |
|
150MHz |
60MHz |
2.5x |
Pins 11 & 12 closed |
|
166MHz |
66MHz |
2.5x |
Pins 13 & 14 closed |
|
200MHz |
66MHz |
3x |
Pins 15 & 16 closed |
|
CPU SPEED SELECTION (INTEL MMX) | |||
|
CPU speed |
Clock speed |
Multiplier |
JP6 |
|
166MHz |
66MHz |
2.5x |
Pins 13 & 14 closed |
|
200MHz |
66MHz |
3x |
Pins 15 & 16 closed |
|
233MHz |
66MHz |
3.5x |
Pins 5 & 6 closed |
|
CPU VOLTAGE SELECTION | ||||
|
Voltage |
JP7/pins 1 & 2 |
JP7/pins 3 & 4 |
JP7/pins 5 & 6 |
JP7/pins 7 & 8 |
|
2.1v |
Closed |
Open |
Open |
Open |
|
2.8v |
Open |
Open |
Open |
Closed |
|
2.9v |
Closed |
Open |
Open |
Closed |
|
3.1v |
Open |
Open |
Closed |
Closed |
|
3.3v |
Closed |
Open |
Closed |
Closed |
|
3.45v |
Open |
Closed |
Closed |
Closed |
|
3.5v |
Closed |
Closed |
Closed |
Closed |