[ SIMM AND EARLY PC MEMORY // IDENTIFIED COMPONENT ]
Parity 30-pin SIMM
Parity SIMM family for early x86 workstations. This entry records a distinct product or well-defined family; differences among revisions and similarly named models are called out below.
MODEL IDENTIFICATION: Match the full model/part number, revision, and region to the item label and its manufacturer documentation. Where a family has multiple revisions, specifications below are not universal across the family.
Recorded specifications
| Cataloged part | Parity 30-pin SIMM |
|---|---|
| Era / family | Parity SIMM family for early x86 workstations |
| Key specifications | Nine data/parity bits per byte; commonly 1 MB or 4 MB modules; 30 contacts; FPM DRAM common. |
| Interface / fit | Systems generally require matched banks; capacity, chip organization, timing, and parity support are platform-specific. |
| Variants / identification | A parity SIMM may be unusable in a board expecting non-parity modules even if it physically fits. |
| Archive record | Record full part number, hardware revision, serial/date code, firmware/BIOS, accessories, physical condition, and the documentation revision used for verification. |
Compatibility and handling
- Confirm the complete part number, connector signal/pinout, supported host, dimensions, power, firmware and operating-system requirements before use.
- Inspect for corrosion, cracked parts, bent pins, damaged insulation, failing bearings, leaking cells, or prior repair. Avoid powering unidentified or damaged hardware.
- For compatibility claims, cite a specific manual, CPU support list, interface standard, or tested host configuration; physical fit alone is insufficient.
- Record measurements with the test setup and instrument conditions; distinguish vendor maximums from measured or sustained results.
Model notes
Systems generally require matched banks; capacity, chip organization, timing, and parity support are platform-specific.
A parity SIMM may be unusable in a board expecting non-parity modules even if it physically fits.
Sources & further reading
- Manufacturer / standards documentation — Parity 30-pin SIMMReference supplied for this specific model or standards family; verify full revision against the nameplate/manual.
- Manufacturer / standards documentation — Parity 30-pin SIMMReference supplied for this specific model or standards family; verify full revision against the nameplate/manual.
Source links may describe a product family, not the exact board revision or region. The full model-specific manual/specification takes precedence.