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. | ||||||||||