J-MARK COMPUTER CORPORATION
J-571B
|
Device Type |
Mainboard |
|
Processor |
CX 6X86/IBM 6X86/CX 686MX/AM K5/AM K6/Pentium |
|
Processor Speed |
75/90/100/120/133/150/166/200/233/266/300MHz |
|
Chip Set |
SIS |
|
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 (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connectors (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
C1 |
PS/2 mouse interface |
J4 |
|
Reset switch |
C2 |
Serial port 1 |
J6 |
|
Turbo LED |
C3 |
Parallel port |
J7 |
|
IDE interface LED |
C4 |
Serial port 2 |
J8 |
|
Power LED & keylock |
C5 |
USB connector 1 |
JP1 |
|
Turbo switch/green PC connector |
C6 |
USB connector 2 |
JP2 |
|
IDE interface 2 |
CN1 |
Floppy drive interface |
JP4 |
|
IDE interface 1 |
CN2 |
CPU fan power |
JP14 |
|
IR connector |
IR1 |
32-bit PCI slots |
PC1 – PC3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Green PC connector |
C6 |
Pins 1 & 2 closed | |
|
Turbo switch |
C6 |
Pins 2 & 3 closed | |
|
Flash BIOS voltage select 12v |
JP3 |
Pins 2 & 3 closed | |
|
Flash BIOS voltage select 5v |
JP3 |
Pins 1 & 2 closed | |
|
» |
CMOS memory normal operation |
JP7 |
Pins 1 & 2 closed |
|
CMOS memory clear |
JP7 |
Pins 2 & 3 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 |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
120MHz |
50MHz |
2x |
On |
Off |
Off |
On |
On |
On |
|
133MHz |
55MHz |
2x |
On |
Off |
Off |
Off |
On |
On |
|
150MHz |
60MHz |
2x |
On |
Off |
Off |
On |
On |
Off |
|
166MHz |
66MHz |
2x |
On |
Off |
Off |
On |
Off |
On |
|
200MHz |
75MHz |
2x |
On |
Off |
Off |
Off |
On |
Off |
|
CPU SPEED SELECTION (IBM 6X86) | ||||||||
|
CPU speed |
Clock speed |
Multiplier |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
120MHz |
50MHz |
2x |
On |
Off |
Off |
On |
On |
On |
|
133MHz |
55MHz |
2x |
On |
Off |
Off |
Off |
On |
On |
|
150MHz |
60MHz |
2x |
On |
Off |
Off |
On |
On |
Off |
|
166MHz |
66MHz |
2x |
On |
Off |
Off |
On |
Off |
On |
|
200MHz |
75MHz |
2x |
On |
Off |
Off |
Off |
On |
Off |
|
CPU SPEED SELECTION (CX 6X86MX) | ||||||||
|
CPU speed |
Clock speed |
Multiplier |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
166MHz |
60MHz |
2.5x |
On |
On |
Off |
On |
On |
Off |
|
166MHz |
66MHz |
2.5x |
On |
On |
Off |
On |
Off |
On |
|
200MHz |
75MHz |
2x |
On |
Off |
Off |
Off |
On |
Off |
|
233MHz |
66MHz |
3x |
Off |
On |
Off |
On |
Off |
On |
|
CPU SPEED SELECTION (AM K5) | ||||||||
|
CPU speed |
Clock speed |
Multiplier |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
Off |
On |
On |
Off |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
Off |
On |
Off |
On |
|
133MHz |
66MHz |
1.5x |
Off |
Off |
Off |
On |
Off |
On |
|
166MHz |
66MHz |
2.5x |
On |
On |
Off |
On |
Off |
On |
|
CPU SPEED SELECTION (AM K6) | ||||||||
|
CPU speed |
Clock speed |
Multiplier |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
166MHz |
66MHz |
2.5x |
On |
On |
Off |
On |
Off |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
Off |
On |
|
266MHz |
66MHz |
4x |
On |
Off |
On |
On |
Off |
On |
|
300MHz |
66MHz |
4.5x |
On |
On |
On |
On |
Off |
On |
|
CPU SPEED SELECTION (INTEL) | ||||||||
|
CPU speed |
Clock speed |
Multiplier |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
75MHz |
50MHz |
1.5x |
Off |
Off |
Off |
On |
On |
On |
|
90MHz |
60MHz |
1.5x |
Off |
Off |
Off |
On |
On |
Off |
|
100MHz |
66MHz |
1.5x |
Off |
Off |
Off |
On |
Off |
On |
|
120MHz |
60MHz |
2x |
On |
Off |
Off |
On |
On |
Off |
|
133MHz |
66MHz |
2x |
On |
Off |
Off |
On |
Off |
On |
|
150MHz |
60MHz |
2.5x |
On |
On |
Off |
On |
On |
Off |
|
166MHz |
66MHz |
2.5x |
On |
On |
Off |
On |
Off |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
Off |
On |
|
CPU SPEED SELECTION (INTEL MMX) | ||||||||
|
CPU speed |
Clock speed |
Multiplier |
JP9/1 |
JP9/2 |
JP9/3 |
JP9/4 |
JP9/5 |
JP9/6 |
|
166MHz |
66MHz |
2.5x |
On |
On |
Off |
On |
Off |
On |
|
200MHz |
66MHz |
3x |
Off |
On |
Off |
On |
Off |
On |
|
233MHz |
66MHz |
3.5x |
Off |
Off |
Off |
On |
Off |
On |
|
CPU VOLTAGE SELECTION (SINGLE) | ||
|
Voltage |
JP13 | |
| » |
3.3v |
Pins 1 & 2 closed |
|
3.45v |
Pins 3 & 4 closed | |
|
CPU VOLTAGE SELECTION (DUAL) | |||||||
|
Voltage |
JP11/pins 1 & 2 |
JP11/pins 3 & 4 |
JP11/pins 5 & 6 |
JP11/pins 7 & 8 |
JP11/pins 9 & 10 |
JP11/pins 11 & 12 |
JP11/pins 13 & 14 |
|
2.1v |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
2.8v |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
2.9v |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
|
3.2v |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
|
3.3v |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
|
3.45v |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
|
3.52v |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |