J-MARK COMPUTER CORPORATION
J-7FXA
|
Device Type |
Mainboard |
|
Processor |
Pentium II |
|
Processor Speed |
233/266MHz |
|
Chip Set |
Intel 440FX |
|
Maximum Onboard Memory |
512MB (EDO supported) |
|
Cache |
256/512KB (located on Pentium II CPU) |
|
BIOS |
Unidentified |
|
Dimensions |
305mm x 244mm |
|
I/O Options |
32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
ATX power connector |
ATX |
Floppy drive interface |
J11 |
|
Speaker |
C1 |
IDE interface 1 |
J12 |
|
Reset switch |
C2 |
IDE interface 2 |
J13 |
|
Turbo LED |
C3 |
IR connector |
J14 |
|
Power LED & keylock |
C4 |
External battery |
J18 |
|
Turbo switch |
C5 |
IDE interface LED |
J19 |
|
CPU fan power |
J2 |
USB connector 1 |
J21 |
|
Serial port 1 |
J3 |
Green PC connector |
J22 |
|
PS/2 mouse port |
J4 |
USB connector 2 |
J26 |
|
Parallel port |
J7 |
32-bit PCI slots |
PC1 – PC4 |
|
Serial port 2 |
J9 |
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|
USER CONFIGURABLE SETTINGS |
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|
Function |
Label |
Position |
|
|
CMOS memory normal operation |
J18 |
Pins 2 & 3 closed |
|
|
CMOS memory clear |
J18 |
Pins 3 & 4 closed |
|
|
Battery type select external |
J18 |
Open |
|
|
Flash BIOS voltage select 12v |
JP11 |
Pins 2 & 3 closed |
|
|
Flash BIOS voltage select 5v |
JP11 |
Pins 1 & 2 closed |
|
|
SIMM CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
8MB |
(2) 1M x 36 |
None |
None |
|
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
None |
|
16MB |
(2) 2M x 36 |
None |
None |
|
24MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
None |
|
32MB |
(2) 4M x 36 |
None |
None |
|
48MB |
(2) 2M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
|
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
None |
|
64MB |
(2) 8M x 36 |
None |
None |
|
96MB |
(2) 4M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
None |
|
128MB |
(2) 16M x 36 |
None |
None |
|
136MB |
(2) 16M x 36 |
(2) 1M x 36 |
None |
|
144MB |
(2) 16M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
144MB |
(2) 16M x 36 |
(2) 2M x 36 |
None |
|
160MB |
(2) 16M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
|
160MB |
(2) 16M x 36 |
(2) 4M x 36 |
None |
|
192MB |
(2) 16M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
192MB |
(2) 16M x 36 |
(2) 8M x 36 |
None |
|
192MB |
(2) 8M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
SIMM CONFIGURATION (CON’T) |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
256MB |
(2) 16M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
256MB |
(2) 16M x 36 |
(2) 16M x 36 |
None |
|
256MB |
(2) 32M x 36 |
None |
None |
|
264MB |
(2) 32M x 36 |
(2) 1M x 36 |
None |
|
272MB |
(2) 32M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
|
272MB |
(2) 32M x 36 |
(2) 2M x 36 |
None |
|
288MB |
(2) 32M x 36 |
(2) 2M x 36 |
(2) 2M x 36 |
|
288MB |
(2) 32M x 36 |
(2) 4M x 36 |
None |
|
320MB |
(2) 32M x 36 |
(2) 4M x 36 |
(2) 4M x 36 |
|
320MB |
(2) 32M x 36 |
(2) 8M x 36 |
None |
|
384MB |
(2) 32M x 36 |
(2) 8M x 36 |
(2) 8M x 36 |
|
384MB |
(2) 32M x 36 |
(2) 16M x 36 |
None |
|
384MB |
(2) 16M x 36 |
(2) 16M x 36 |
(2) 16M x 36 |
|
512MB |
(2) 32M x 36 |
(2) 16M x 36 |
(2) 16M x 36 |
|
CACHE CONFIGURATION |
|
Note: 256KB/512KB cache is located on the Pentium II CPU. |
|
CPU SPEED SELECTION |
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|
CPU speed |
Clock speed |
Multiplier |
JP2 |
JP4 |
JP5 |
JP6 |
JP7 |
|
233MHz |
66MHz |
3.5x |
Open |
Open |
Open |
Closed |
Closed |
|
266MHz |
66MHz |
4x |
Open |
Closed |
Closed |
Open |
Closed |