[ EARLY X86 PROCESSORS // IDENTIFIED COMPONENT ]
Intel 80286-12
Intel 16-bit x86 CPU, 1984. This file identifies a specific part or clearly bounded model family, rather than an overview of the category.
IDENTIFY THE REVISION: Check the complete product code, suffix, board revision, region, firmware, and date code. Similar names do not guarantee the same hardware.
Part specifications
| Catalog subcategory | Early x86 processors |
|---|---|
| Catalog identity | Intel 80286-12 |
| Generation / family | Intel 16-bit x86 CPU, 1984 |
| Architecture / ratings | 16-bit external bus; 24-bit physical address; 12 MHz clock grade; protected-mode architecture; PGA package variants. |
| Interface / fit | Requires compatible 286 chipset, bus timing and BIOS; package pinout/voltage must match exact marked part. |
| Variants / field identification | 80286 has no integrated memory management/paging like later 80386; XT-class boards are incompatible. |
| Evidence to collect | Photograph the nameplate and PCB labels; record test system, firmware, installed accessories, condition, and manual/datasheet revision used to verify specifications. |
Compatibility, care & service
- Check electrical signaling, pinout, voltage, current, connector, mounting and supported firmware before installation; do not rely on matching shapes alone.
- Inspect physical condition and manufacturer warnings; mains PSUs, CRTs, batteries and spinning media may retain hazardous energy or require specialist service.
- For vintage equipment, use the correct bus generation, BIOS, driver, media type, cable orientation and resource configuration documented for the machine.
- Record measured results separately from the manufacturer's published limits and state the setup and measurement conditions.
Model-specific notes
Requires compatible 286 chipset, bus timing and BIOS; package pinout/voltage must match exact marked part.
80286 has no integrated memory management/paging like later 80386; XT-class boards are incompatible.
Sources & further reading
- Manufacturer / standards reference — Intel 80286-12Source for product-family specifications; compare exact suffix, revision, and region with the unit label.
- Manufacturer / standards reference — Intel 80286-12Source for product-family specifications; compare exact suffix, revision, and region with the unit label.
- LGR — Restoring an IBM PC XT-286 from 1986Independent video review; treat as supplementary context, not primary manufacturer documentation.
Links lead to manufacturer or standards references where available. If a source covers a family, use the exact model's manual as the final authority.