PACKARD BELL
PB 386-25 (REVISION D)
|
Processor |
80386DX |
|
Processor Speed |
25MHz |
|
Chip Set |
Intel |
|
Max. onboard DRAM |
8MB |
|
Cache |
None |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 240mm |
|
I/O Options |
32-bit expansion slots (2), parallel port, serial ports (2) |
|
NPU Options |
80387/3167 |
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CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Parallel port |
J10A |
Reset switch |
J18 |
|
Serial port 1 (9 pin) |
J10B/pins 1-10 |
Speaker |
J19 |
|
Serial port 2 (9 pin) |
J10B/pins 11-20 |
Keylock |
J20 |
|
Serial port 2 (25 pin) |
J10C |
32-bit expansion slots |
S1 & S2 |
|
Note: J10C is a 25-pin version of serial port 2 (J10B pins 11-20). Either connector may be used, but not both. |
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USER CONFIGURABLE SETTINGS |
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|
Function |
Jumper |
Position |
|
|
» |
Printer acknowledge trailing edge |
JP1 |
pins 2 & 3 closed |
|
|
Printer acknowledge leading edge |
JP1 |
pins 1 & 2 closed |
|
» |
NPU disabled |
JP6 |
pins 2 & 3 closed |
|
|
NPU enabled |
JP6 |
pins 1 & 2 closed |
|
» |
Keyboard reset disabled |
JP7 |
pins 2 & 3 closed |
|
|
Keyboard reset enabled |
JP7 |
pins 1 & 2 closed |
|
» |
System type select DOS |
JP8 |
pins 2 & 3 closed |
|
|
System type select UNIX |
JP8 |
pins 1 & 2 closed |
|
» |
Monitor type select color |
JP9 |
pins 2 & 3 closed |
|
|
Monitor type select monochrome |
JP9 |
pins 1 & 2 closed |
|
» |
BIOS type select 2764 |
JP10 |
pins 1 & 2 closed |
|
|
BIOS type select 27128 |
JP10 |
pins 2 & 3 closed |
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SERIAL PORT CONFIGURATION |
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|
Port 1 (J10B/1-10) |
Port 2 (J10B/11-20 or J10C) |
JP4 |
JP5 |
|
|
» |
COM1/IRQ4 |
COM2/IRQ3 |
pins 1 & 2 |
pins 1 & 2 |
|
|
COM1/IRQ4 |
Disabled |
pins 1 & 2 |
pins 2 & 3 |
|
|
Disabled |
COM2/IRQ3 |
pins 2 & 3 |
pins 1 & 2 |
|
|
Disabled |
Disabled |
pins 2 & 3 |
pins 2 & 3 |
|
Note: Pins designated should be in the closed position. |
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PARALLEL PORT (J10A) CONFIGURATION |
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|
LPT |
JP2 |
JP3 |
|
|
» |
LPT1 |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
|
LPT2 |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
|
Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
DRAM CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
JP17 |
JP18 |
JP13A |
JP13B |
|
1MB |
(4) 256K x 9 |
NONE |
pins 1 & 2 |
pins 1 & 2 |
Open |
Open |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
pins 1 & 2 |
pins 1 & 2 |
Open |
Closed |
|
4MB |
(4) 1M x 9 |
NONE |
pins 2 & 3 |
pins 2 & 3 |
Closed |
Open |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
pins 2 & 3 |
pins 2 & 3 |
Closed |
Closed |
|
Note: Pins designated should be in the closed position. |
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RAM TYPE CONFIGURATION |
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|
Type |
JP11 |
JP12 |
|
|
|
RAS/CAS |
Open |
Open |
|
» |
Fast Paged |
Closed |
Closed |
|
|
Static Column |
Open |
Closed |
|
RAM SPEED CONFIGURATION |
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|
Speed |
JP15 |
JP16 |
|
100ns or faster |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
Slower than 100ns |
pins 2 & 3 closed |
pins 2 & 3 closed |