Packard Bell 286 IS/VT286 M/Board

Specification

NOTE: PB286 with the old motherboard is also known as the IS/VT286.

• Battery : 3.5 Lithium, removable
• BIOS : 2 x 32KB - Packard Bell 3.90P. TO access Setup, Run SETUP.EXE Program
• Cache : N/A
• Clock/Driver : (RTC)
• Cover Removal :
  • PB286 : 2 screws on front under slide covers
  • IS/VT286 : 5 screws on edge of rear panel
• CPU : 80286-10MHz 80286-12MHz
  • PB286 - Keyboard Switchable (Ctrl)-(Alt)-(+) = 12 MHz. (Ctrl)-(Alt)-(-) = 8 MHz
  • IS/VT286 Hardware Switchable Speed Select Button - Speed Turbo Position : 12, STD Position : 8
• Drive Cavities : 3 X half-height (exposed), 2 X half-height (enclosed)
• I/O Expansion slots : 5 x 16-bit ISA, 3 x 8-bit ISA
• Interfaces :
  • 1 DB-25 Parallel Port
  • 1 RS-232, DB-9 Serial Port
  • 1 5-pin DIN Keyboard Port
  • 1 PS/2 Mouse Port
  • 1 15-pin VGA Port
• Power Supply : 210 watts 115v: (50Hz) /230v: (60)
• RAM : Standard on motherboard : 640Kb Maximum on motherboard : 1MB
• Speaker : Internal - cone on chassis
• Video : PB-EGA or PB-EGA/RS on expansion slot.

DIP Switches

The PB286 has 2 motherboard revisions, the IS/VT286 is the old motherboard.

The old version of this motherboard does not have DIP SWITCH 1

Dip Switches (SW1)

SW2 Settings (ROM Selector)

Upgrades

• Cache Memory : This system does not support cache memory.
• Maths Co-Processor : A math co-processor can be installed in U99, no jumpers need to be changed. Use a 80287-6 for 6-8-10 MHz systems and a 80287-8 for 12 MHz systems.
• RAM : Upgradeable to 1MB by adding (4)256Kx4 and (2)256Kx1. If you want to install Memory Card(s), in your 1 MB RAM system, be sure to select SW1-1 ON, SW1-2 OFF.
• Video Memory : This system has a video card, upgrade depends on card.