J-MARK COMPUTER CORPORATION
J-7LXA, J-7LXA/L
|
Processor |
Pentium II |
|
Processor Speed |
200/233/266/300MHz |
|
Chip Set |
Intel |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
1GB (EDO & SDRAM supported) |
|
Maximum Video Memory |
None |
|
Cache |
256/512KB (located on Pentium II CPU) |
|
BIOS |
Award |
|
Dimensions |
305mm x 244mm |
|
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), IR connector, USB connectors (2), ATX power connector, AGP slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
ATX power connector |
ATX |
IDE interface 1 |
CN6 |
|
AGP slot |
AGP |
IDE interface 2 |
CN7 |
|
Turbo switch |
C1 |
Floppy drive interface |
CN8 |
|
Power LED & keylock |
C2 |
Serial port 2 |
CN9 |
|
Turbo LED |
C3 |
CPU fan power |
FAN |
|
Reset switch |
C4 |
Chassis fan power |
FAN1 |
|
Speaker |
C5 |
Chassis fan power |
FAN2 |
|
Serial port 1 |
CN1 |
IDE interface LED |
FRNT2/pins 1 & 3 |
|
Parallel port |
CN2 |
Green PC connector |
FRNT2/pins 2 & 4 |
|
PS/2 mouse port |
CN3 |
Soft off power supply |
FRNT3 |
|
USB connector 1 |
CN4 |
IR connector |
IR1 |
|
USB connector 2 |
CN5 |
32-bit PCI slots |
PC1 PC4 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Flash BIOS voltage select 12v |
JERP1 |
Pins 1 & 2 closed | |
|
Flash BIOS voltage select 5v |
JERP1 |
Pins 2 & 3 closed | |
|
|
CMOS memory normal operation |
RTC1 |
Pins 2 & 3 closed |
|
CMOS memory clear |
RTC1 |
Pins 3 & 4 closed | |
|
DIMM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
16MB |
(1) 2M x 64 |
None |
None |
None |
|
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
None |
None |
|
32MB |
(1) 4M x 64 |
None |
None |
None |
|
48MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
None |
|
64MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
|
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
None |
None |
|
64MB |
(1) 8M x 64 |
None |
None |
None |
|
128MB |
(1) 16M x 64 |
None |
None |
None |
|
128MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
|
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
None |
None |
|
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
None |
|
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
None |
None |
|
256MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
|
256MB |
(1) 32M x 64 |
None |
None |
None |
|
384MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
None |
|
512MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
|
512MB |
(1) 32M x 64 |
(1) 32M x 64 |
None |
None |
|
768MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 32M x 64 |
None |
|
1024MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 32M x 64 |
|
Note: Board accepts EDO & SDRAM memory. | ||||
|
CACHE CONFIGURATION |
|
Note: 256KB/512KB cache is located on the Pentium II CPU. |
|
CPU SPEED SELECTION | ||||||
|
CPU speed |
Clock speed |
Multiplier |
JP1/1 |
JP1/2 |
JP1/3 |
JP1/4 |
|
200MHz |
66MHz |
3.5x |
On |
On |
On |
Off |
|
233MHz |
66MHz |
4x |
On |
On |
Off |
Off |
|
266MHz |
66MHz |
4.5x |
On |
Off |
On |
On |
|
300MHz |
66MHz |
5x |
On |
Off |
Off |
On |