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 |