File:IBM 5160 201 RAM error breakdown (minuszerodegrees).jpg
Summary
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Diagram titled "IBM 5160 - Breakdown of 201 RAM Subsystem error", working through the example 30000 4C 201: the address indicator 30000 hex is 196608 decimal, or 192 KB, and the bit indicator 4C hex (01001100 binary) means data bits 6, 3 and 2. Notes on the diagram say a bit indicator of 00 means the parity bit, that the author saw 0C000 00 201 after putting a 4164 chip into bank 0 of a 256-640KB board, and that many failing bits often means non-existent RAM was tested.
Source
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https://www.minuszerodegrees.net/5160/ram/5160_ram_201_error_breakdown.jpg (retrieved 2026-10-25), linked from minuszerodegrees.net's IBM 5160 RAM pages.
Author
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minuszerodegrees.net.
Licence
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No licence is stated on minuszerodegrees.net. Reproduced with credit for repair reference.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:39, 25 October 2026 | | 1,700 × 800 (352 KB) | Josh (talk | contribs) | Upload for repair guide |
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