Packard Bell 386 25 (Rev. F) M/Board
Specification
There are two motherboard versions. Rev. D has all simm sockets grouped together, Rev. F has them arranged in two groups.
- Battery : DS1287 soldered on Motherboard
- BIOS : 2 X 32K Phoenix 1.10.19C2 BIOS. To access setup, Ctrl+Alt+Ins
- Bus Architecture : ISA based system bus
- Cache : 64K, 35 ns
- CPU : 80C386DX-25 MHz. Keyboard Switchable Ctrl-Alt-1 = 8 MHz, Ctrl-Alt-2 = 25 MHz. Use number keys on numeric pad.
- Interfaces :
- 1 DB-25 Parallel Port
- 2 DB-9 Serial ports
- 1 Keyboard Port
- 1 Ext. VGA Conn 15 pin
- RAM : 4MB standard Maximum on Motherboard 8 MB
- Speaker : Piezoelectric, soldered on motherboard
- Video : Oak, Trident, PBVGA Multi, or SVGA
Jumpers
| Function | Jumper | Description |
|---|---|---|
| SIMM Speed | E47-E48 E48-E49 | 100ns 85ns |
| SIMM Type | E42-E43, E44-E45 E42-E43, E45-E46 E41-E42, E44-E45 | Static Column Fast Paged Standard RAS/CAS |
| Total RAM | E35-E36, E30-E31, E33-E34, E39-E40 E32-E33, E35-E36, E39-E40, E30-E31 E33-E34, E36-E37, E38-E39, E29-E30 E32-E33, E36-E37, E38-E39, E29-E30 | 1MB 2MB 4MB 8MB |
| ROM Size | E23-E24 E24-E25 | 64K 128K |
| Monitor Type | E18-E19 E17-E18 | Colour Monochrome |
| Printer Acknowledge | E2-E3 E3-E4 | Leading Edge Trailing Edge |
| Parallel Port | E5-E6 E6-E7 E8-E9 E9-E10 | LPT1 Enabled LPT1 Disabled LPT2 Enabled LPT2 Disabled |
| Serial Port | E11-E12 E12-E13 E14-E15 E15-E16 | COM1 Enabled COM1 Disabled COM2 Enabled COM2 Disabled |
Upgrades
- Battery : DS1287 soldered on motherboard.
- Maths Co-Processor : This system supports the 80387SX-25 math co-processor. It is installed at location U41. No jumper settings are required.
- RAM : 4MB standard Maximum on Motherboard 8 MB. This board will accept RAS/CAS, Fast-Paged, or Static Column memory upto 8MB. SIMM Speed either 80ns or 100ns (100ns recommended). See the jumpers section for necessary jumper changes when upgrading memory.
Adding RAM is the most cost effective way to boost your computer's performance.