MYLEX CORPORATION
MNE486 System Board
Processor | 80486DX |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | Intel |
Max. Onboard DRAM | 32MB |
Cache | 128KB |
BIOS | Mylex |
Dimensions | 330mm x 218mm |
I/O Options | Bus mouse, floppy drive interface, IDE interface, serial port, parallel port |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | P11 | Serial port | P20 |
Power LED & keylock | P12 | Parallel port | P21 |
Turbo LED | P13 | Bus mouse | P22 |
Reset switch | P14 | IDE interface | P23 |
Floppy drive interface | P18 | IDE interface LED | P24 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | External SRAM cache enabled | J1 | pins 1 & 2 closed |
External SRAM cache disabled | J1 | Open | |
» | Factory configured - do not alter | J2 | N/A |
» | Factory configured - do not alter | J13 | N/A |
» | Factory configured - do not alter | J14 | N/A |
» | Factory configured - do not alter | J15 | N/A |
» | Factory configured - do not alter | J16 | N/A |
» | Serial port 1 select COM1 interrupt IRQ4 at 3F8-3FF | J17 | pins 1 & 2 closed |
Serial port 1 select COM2 interrupt IRQ3 at 2F8-2FF | J17 | pins 2 & 3 closed | |
» | Parallel port select LPT1 interrupt IRQ7 at 378-37F | J18 | pins 1 & 2 closed |
Parallel port select LPT2 interrupt IRQ5 at 278-27F | J18 | pins 2 & 3 closed | |
» | On-board interface ports enabled | J19 | pins 1 & 2 closed |
On-board interface ports disabled | J19 | pins 2 & 3 closed | |
» | IDE factory diagnostics disabled | J20 | pins 1 & 2 closed |
IDE factory diagnostics enabled | J20 | Open |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
32MB | (4) 4M x 9 | (4) 4M x 9 |
DRAM JUMPER CONFIGURATION | ||||||||||
Size | J3 | J4 | J5 | J6 | J7 | J8 | J9 | J10 | J11 | J12 |
1MB | Open | Open | Open | Open | Open | 2 & 3 | Open | 1 & 2 | 1 & 2 | 1 & 2 |
2MB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 | Open | 1 & 2 | 1 & 2 | 2 & 3 |
4MB | Open | Open | Open | Open | Open | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
8MB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Open | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
16MB | Open | Open | Open | Open | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 |
32MB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. |