J-MARK COMPUTER CORPORATION
J-656VXDP
Processor | CX 6X86/AM K5/AM K6/Pentium |
Processor Speed | 75/90/100/120/133/150/166/200/233MHz |
Chip Set | Intel |
Video Chip Set | None |
Maximum Onboard Memory | 512MB (EDO supported) |
Maximum Video Memory | None |
Cache | 256/512KB |
BIOS | Award |
Dimensions | 254mm x 218mm |
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 |
IR connector | C1 | Serial port 2 | J2 |
IDE interface LED | C2 | Serial port 1 | J3 |
Reset switch | C3 | IDE interface 2 | J4 |
Speaker | C4 | IDE interface 1 | J5 |
Power LED & keylock | C5 | Floppy drive interface | J6 |
Green PC connector | C6 | Parallel port | J7 |
Turbo LED | C7 | USB connector | JP1 |
Turbo switch | C8 | USB connector | JP2 |
PS/2 mouse interface | J1 | 32-bit PCI slots | PC1 – PC3 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
Flash BIOS voltage select 12v | JP4 | Pins 2 & 3 closed | |
Flash BIOS voltage select 5v | JP4 | Pins 1 & 2 closed | |
» | CMOS memory normal operation | JP5 | Open |
CMOS memory clear | JP5 | Closed |
SIMM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
8MB | (2) 1M x 36 | None |
16MB | (2) 2M x 36 | None |
16MB | (2) 1M x 36 | (2) 1M x 36 |
24MB | (2) 2M x 36 | (2) 1M x 36 |
32MB | (2) 4M x 36 | None |
32MB | (2) 2M x 36 | (2) 2M x 36 |
40MB | (2) 4M x 36 | (2) 1M x 36 |
48MB | (2) 4M x 36 | (2) 2M x 36 |
64MB | (2) 8M x 36 | None |
64MB | (2) 4M x 36 | (2) 4M x 36 |
72MB | (2) 8M x 36 | (2) 1M x 36 |
80MB | (2) 8M x 36 | (2) 2M x 36 |
96MB | (2) 8M x 36 | (2) 4M x 36 |
128MB | (2) 8M x 36 | (2) 8M x 36 |
128MB | (2) 16M x 36 | None |
136MB | (2) 16M x 36 | (2) 1M x 36 |
144MB | (2) 16M x 36 | (2) 2M x 36 |
160MB | (2) 16M x 36 | (2) 4M x 36 |
192MB | (2) 16M x 36 | (2) 8M x 36 |
256MB | (2) 16M x 36 | (2) 16M x 36 |
Note: Board accepts EDO memory. |
DIMM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
32MB | (1) 2M x 64 | (1) 2M x 64 |
48MB | (1) 4M x 64 | (1) 2M x 64 |
64MB | (1) 4M x 64 | (1) 4M x 64 |
CACHE CONFIGURATION | ||
Size | Bank 0 | TAG |
256KB | (2) 32K x 32 | (1) 32K x 8 |
512KB | (2) 64K x 32 | (1) 32K x 8 |
CPU SPEED SELECTION (CX 6X86) | |||||||
CPU speed | Clock speed | Multiplier | BF0 | BF1 | FS0 | FS1 | FS2 |
120MHz | 50MHz | 2x | 2 & 3 | 1 & 2 | Closed | Closed | Closed |
133MHz | 55MHz | 2x | 2 & 3 | 1 & 2 | Closed | Closed | Open |
150MHz | 60MHz | 2x | 2 & 3 | 1 & 2 | Open | Closed | Closed |
166MHz | 66MHz | 2x | 2 & 3 | 1 & 2 | Closed | Open | Closed |
200MHz | 75MHz | 3x | 2 & 3 | 1 & 2 | Open | Closed | Open |
CPU SPEED SELECTION (AM K5) | |||||||
CPU speed | Clock speed | Multiplier | BF0 | BF1 | FS0 | FS1 | FS2 |
90MHz | 60MHz | 1.5x | 1 & 2 | 1 & 2 | Open | Closed | Closed |
100MHz | 66MHz | 1.5x | 1 & 2 | 1 & 2 | Closed | Open | Closed |
133MHz | 66MHz | 1.5x | 1 & 2 | 1 & 2 | Closed | Open | Closed |
166MHz | 66MHz | 2.5x | 2 & 3 | 2 & 3 | Closed | Open | Closed |
CPU SPEED SELECTION (AM K6) | |||||||
CPU speed | Clock speed | Multiplier | BF0 | BF1 | FS0 | FS1 | FS2 |
166MHz | 66MHz | 2.5x | 2 & 3 | 2 & 3 | Closed | Open | Closed |
200MHz | 66MHz | 3x | 1 & 2 | 2 & 3 | Closed | Open | Closed |
233MHz | 66MHz | 3.5x | 1 & 2 | 1 & 2 | Closed | Open | Closed |
CPU SPEED SELECTION (INTEL) | |||||||
CPU speed | Clock speed | Multiplier | BF0 | BF1 | FS0 | FS1 | FS2 |
75MHz | 50MHz | 1.5x | 1 & 2 | 1 & 2 | Closed | Closed | Closed |
90MHz | 60MHz | 1.5x | 1 & 2 | 1 & 2 | Open | Closed | Closed |
100MHz | 66MHz | 1.5x | 1 & 2 | 1 & 2 | Closed | Open | Closed |
120MHz | 60MHz | 2x | 2 & 3 | 1 & 2 | Open | Closed | Closed |
133MHz | 66MHz | 2x | 2 & 3 | 1 & 2 | Closed | Open | Closed |
150MHz | 60MHz | 2.5x | 2 & 3 | 2 & 3 | Open | Closed | Closed |
166MHz | 66MHz | 2.5x | 2 & 3 | 2 & 3 | Closed | Open | Closed |
200MHz | 66MHz | 3x | 1 & 2 | 2 & 3 | Closed | Open | Closed |
233MHz | 66MHz | 3.5x | 1 & 2 | 1 & 2 | Closed | Open | Closed |
CPU VOLTAGE SELECTION | |||
Voltage | V core | JP11 | JP12 |
3.3v | 2.8v | Pins 1 & 2 closed | Pins 1 & 2 closed |
3.3v | 3.3v | Pins 2 & 3 closed | Pins 1 & 2 closed |
3.3v | 3.45v | Pins 4 & 5 closed | Pins 1 & 2 closed |
3.3v | 3.52v | Pins 5 & 6 closed | Pins 1 & 2 closed |
3.52v | 2.8v | Pins 1 & 2 closed | Pins 2 & 3 closed |
3.52v | 3.3v | Pins 2 & 3 closed | Pins 2 & 3 closed |
3.52v | 3.45v | Pins 4 & 5 closed | Pins 2 & 3 closed |
3.52v | 3.52v | Pins 5 & 6 closed | Pins 2 & 3 closed |