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| blog:286_shootout_pa286-sa1 [2021/01/20 08:16] – [Oscillator Modification] john | blog:286_shootout_pa286-sa1 [2024/02/16 19:02] (current) – [Conclusion] john | ||
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| ====== Peaktron / Micro Systems PA286-SA1 ====== | ====== Peaktron / Micro Systems PA286-SA1 ====== | ||
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| + | A 286 motherboard that seemed promising. Information on specifications and configuration, | ||
| ===== Initial Thoughts ===== | ===== Initial Thoughts ===== | ||
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| ===== Conclusion ===== | ===== Conclusion ===== | ||
| - | This one looked too good to be true: 20MHz support, 16MB RAM support, modern-single-chip chipset, performance options (0-wait state, BIOS shadowing, etc). Unfortunately it simply //was// too good to be true. | + | This one looked too good to be true: 20MHz support, 16MB RAM support, performance options (0-wait state, BIOS shadowing, etc). Unfortunately it simply //was// too good to be true. |
| The board is well made, clean and nicely finished... but... it simply can't run reliably with 0-wait state mode enabled; and that is absolutely essential for decent performance. Running in 1-wait state mode with a 16MHz processor speed drops the overall performance to that of a 10 or 12MHz processor (12MHz is being generous). | The board is well made, clean and nicely finished... but... it simply can't run reliably with 0-wait state mode enabled; and that is absolutely essential for decent performance. Running in 1-wait state mode with a 16MHz processor speed drops the overall performance to that of a 10 or 12MHz processor (12MHz is being generous). | ||