NORTHGATE COMPUTER SYSTEMS, INC.
SLIMLINE SP
|
Processor |
80386DX/80486DX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
VLSI |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/256KB |
|
BIOS |
AMI |
|
Dimensions |
350mm x 304mm |
|
I/O Options |
Proprietary CPU/NPU module slot, parallel port, serial ports (2), floppy drive interface, IDE interface, VGA port |
|
NPU Options |
80387/3167/4167 (on external CPU/NPU card) |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Proprietary CPU module |
CPU1 |
Serial port 1 |
J9 |
|
VGA port |
J1 |
Serial port 2 |
J10 |
|
External battery |
J2 |
Parallel port LPT1 |
J15 |
|
Turbo LED |
J4 |
Floppy drive interface |
J16 |
|
Power LED & keylock |
J5 |
IDE interface |
J17 |
|
Reset switch |
J6 |
Speaker |
J19 |
|
IDE interface LED |
J8 |
Riser card |
R1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Floppy drive write precomp select alternate |
W2 |
pins 2 & 3 closed | |
|
Floppy drive write precomp select normal |
W2 |
pins 1 & 2 closed | |
|
Factory configured - do not alter |
W3 |
N/A | |
|
Monitor type select monochrome |
W4 |
pins 1 & 2 closed | |
|
Monitor type select color |
W4 |
pins 2 & 3 closed | |
|
CMOS memory normal operation |
W8 |
Open | |
|
CMOS memory clear |
W8 |
Closed | |
|
Parallel port mode select bi-directional |
W13 |
pins 2 & 3 closed | |
|
Parallel port mode select input only |
W13 |
pins 1 & 2 closed | |
|
Floppy drive mode select single speed |
W18 |
pins 1 & 2 closed | |
|
Floppy drive mode select dual speed |
W18 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
W27 |
N/A | |
|
Factory configured - do not alter |
W29 |
N/A | |
|
Factory configured - do not alter |
SW1 pins 1 & 2 |
N/A | |
|
Factory configured - do not alter |
SW1 pins 5 & 6 |
N/A | |
|
VGA BIOS shadowing enabled |
SW1 pins 11 & 12 |
Closed | |
|
VGA BIOS shadowing disabled |
SW1 pins 11 & 12 |
Open | |
|
BIOS shadowing enabled |
SW1 pins 11 & 12 |
Closed | |
|
BIOS shadowing disabled |
SW1 pins 11 & 12 |
Open | |
|
IRQ6 enabled |
SW2 pins 9 & 10 |
Closed | |
|
IRQ6 disabled |
SW2 pins 9 & 10 |
Open | |
|
Floppy drive interface enabled |
SW3 pins 1 & 2 |
Open | |
|
Floppy drive interface disabled |
SW3 pins 1 & 2 |
Closed | |
|
Note:The locations of W8 & W29 are unidentified. | |||
|
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/SWITCH CONFIGURATION | |||
|
Size |
SW1 |
W5 |
W6 |
|
1MB |
3 & 4, 17 & 18, 19 & 20 |
2 & 3 |
2 & 3 |
|
2MB |
17 & 18, 19 & 20 |
2 & 3 |
2 & 3 |
|
4MB |
3 & 4, 17 & 18 |
1 & 2 |
2 & 3 |
|
8MB |
17 & 18 |
1 & 2 |
2 & 3 |
|
16MB |
3 & 4 |
1 & 2 |
1 & 2 |
|
32MB |
Open |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||
|
IDE CONFIGURATION | ||
|
Setting |
SW21 |
W20 |
|
Enabled |
Closed |
Open |
|
Disabled |
Open |
Closed |
|
PARALLEL PORT IRQ CONFIGURATION | |
|
IRQ |
SW2 |
|
IRQ5 |
pins 5 & 6 closed |
|
IRQ7 |
pins 7 & 8 closed |
|
PARALLEL PORT CONFIGURATION | |
|
Setting |
SW3 |
|
LPT1/3BCh |
pins 9 & 10 closed |
|
LPT1/378h |
Open |
|
LPT2/278h |
pins 7 & 8 closed |
|
Disabled |
pins 7 & 8, 9 & 10 closed |
|
SERIAL PORT 1 CONFIGURATION | ||
|
Setting |
SW2 |
SW3 |
|
Enabled |
pins 1 & 2 closed |
Open |
|
Disabled |
Open |
pins 5 & 6 closed |
|
SERIAL PORT 2 CONFIGURATION | ||
|
Setting |
SW2 |
SW3 |
|
Enabled |
pins 3 & 4 closed |
Open |
|
Disabled |
Open |
pins 3 & 4 closed |
|
VIDEO CONFIGURATION | ||
|
Setting |
SW5 |
W19 |
|
Enabled |
pins 1 & 2, 3 & 4, 5 & 6 closed |
pins 1 & 2 closed |
|
Disabled |
Open |
pins 2 & 3 closed |
|
BIOS CONFIGURATION | |
|
Setting |
SW1 |
|
F000-FFFF (VGA BIOS disabled) |
pins 7 & 8, 9 & 10 closed |
|
F000-FFFF, E000-EFFF (VGA BIOS disabled, BIOS shadowing enabled) |
pins 7 & 8 closed |
|
F000-FFFF VGA BIOS at C000-C7FF |
pins 9 & 10 closed |
|
F000-FFFF VGA BIOS at C000-C7FF, IDE interface at C800-CFFF |
pins 9 & 10 closed |
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
64KB |
(8) 8K x 8 |
|
256KB |
(8) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |
|
Size |
W1 |
|
64KB |
Open |
|
256KB |
pins 1 & 2, 3 & 4 closed |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
W3 |
W4 |
W5 |
|
Burst mode enabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
Burst mode enabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
64KB |
(8) 8K x 8 |
|
256KB |
(8) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
W1 |
W2 |
W5 |
|
64KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
Open |
|
256KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 3 & 4, 5 & 6 closed |