Uploaded December 2024 | Updated September 2026, 2 weeks ago

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I have this board, an M396F V2.6, which I am sure has the least components in my collection. This minimalistic board sports 6 ISA slots, 4 30-pin SIMM sockets, and a Texas Instruments TX486SLC/E CPU. Another YouTuber, K2s Retro Workshop (@DKJones96) tried this board and had issues with the 1K cache on his CPU - a clock-doubled version with 40 MHz. Today, I want to find out if I can reproduce the issues he faced and decide if I want to transplant the CPU to a board that may benefit more from the features of the TX486SLC/E.

K2s Retro Workshop video: youtube.com/watch?v=t415uFWPkmY

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▬▬▬▬ *Timestamps* ▬▬▬▬▬▬▬▬▬▬▬▬▬▬
00:00 The MF396F V2.6
03:54 First power-on
05:55 PCBWay
06:36 Debugging
11:36 Second test
13:40 Benchmarks: Cache enabled
17:20 Benchmarks: Cache disabled
18:56 Reproduce Cache issues
20:13 The cache pins
24:41 No swap!