NORTHGATE COMPUTER SYSTEMS, INC.
SLIMLINE 320
|
Processor |
80386DX |
|
Processor Speed |
20MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port |
|
NPU Options |
80387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
J2 |
Floppy drive interface |
J16 |
|
Turbo LED |
J6 |
IDE interface |
J17 |
|
Power LED & keylock |
J8 |
VGA port |
J21 |
|
Serial port 2 |
J13 |
IDE interface LED |
J23 |
|
Serial port 1 |
J14 |
Riser card |
R1 |
|
Parallel port |
J15 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
J1 |
Closed | |
|
VGA onboard BIOS enabled |
J3 |
pins 2 & 3 closed | |
|
VGA onboard BIOS disabled |
J3 |
pins 1 & 2 closed | |
|
VGA port enabled |
J4 |
Closed | |
|
VGA port disabled |
J4 |
Open | |
|
CPU speed select switchable at turbo switch (boot-up fast) |
J7 |
Open | |
|
CPU speed select slow |
J7 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
J9 |
pins 1 & 2 closed | |
|
Monitor type select color |
J9 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
J10 |
N/A | |
|
Factory configured - do not alter |
J18 |
Closed | |
|
Factory configured - do not alter |
J19 |
Closed | |
|
Factory configured - do not alter |
J20 |
Closed | |
|
Factory configured - do not alter |
J24 |
Open | |
|
Factory configured - do not alter |
SW1 pins 3 & 4 |
N/A | |
|
Factory configured - do not alter |
SW1 pins 5 & 6 |
N/A | |
|
Factory configured - do not alter |
SW1 pins 7 & 8 |
N/A | |
|
Serial port 1 enabled |
SW3 pins 1 & 2 |
Open | |
|
Serial port 1 disabled |
SW3 pins 1 & 2 |
Closed | |
|
Serial port2 enabled |
SW3 pins 3 & 4 |
Open | |
|
Serial port 2 disabled |
SW3 pins 3 & 4 |
Closed | |
|
Parallel port enabled |
SW3 pins 5 & 6 |
Open | |
|
Parallel port disabled |
SW3 pins 5 & 6 |
Closed | |
|
Parallel port select LPT1 |
SW3 pins 7 & 8 |
Open | |
|
Parallel port select LPT2 |
SW3 pins 7 & 8 |
Closed | |
|
Factory configured - do not alter |
SW4 pins 1 & 2 |
Closed | |
|
Factory configured - do not alter |
SW4 pins 3 & 4 |
Closed | |
|
Factory configured - do not alter |
SW4 pins 5 & 6 |
Closed | |
|
Factory configured - do not alter |
SW4 pins 7 & 8 |
Closed | |
|
Factory configured - do not alter |
W1 |
Open | |
|
Floppy drive interface enabled |
W5 pins 1 & 2 |
Open | |
|
Floppy drive interface disabled |
W5 pins 1 & 2 |
Closed | |
|
IDE interface enabled |
W5 pins 3 & 4 |
Open | |
|
IDE interface disabled |
W5 pins 3 & 4 |
Closed | |
|
Floppy drive select 1-speed |
W6 pins 1 & 2 |
Open | |
|
Floppy drive select 2-speed 1.2MB 5.25" |
W6 pins 1 & 2 |
Closed | |
|
Floppy drive write precomp select 125ns |
W6 pins 3 & 4 |
Open | |
|
Floppy drive write precomp select 187ns |
W6 pins 3 & 4 |
Closed | |
|
Factory configured - do not alter |
W8 |
Open | |
|
Note:The location of W1 is unidentifed. | |||
|
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 |
|
DRAM JUMPER CONFIGURATION | ||||
|
Size |
J11 |
J12 |
SW1 |
SW2 |
|
1MB |
2 & 3 |
2 & 3 |
Open |
Open |
|
2MB |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
|
4MB |
1 & 2 |
1 & 2 |
1 & 2 |
5 & 6, 7 & 8 |
|
8MB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2, 5 & 6, 7 & 8 |
|
Note:Pins designated should be in the closed position. | ||||