Uploaded July 2025 | Updated September 2026, 2 weeks ago

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The PCChips M915i gets a cache upgrade! Well, it didn't have any cache before since all it came with were fake cache chips. The BIOS is updated and supports L2 cache, but I want to find out if we can get 512 or even 1024K of L2 cache working on this board. Another question I would like to answer is, does the board support enhanced DX2 CPUs with write-back L1 cache.
At the end of this video, you will be able to make your own decision what is best for your retro system.

Part 1: youtu.be/NEnbnK8JO-0

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▬▬▬▬ *Timestamps* ▬▬▬▬▬▬▬▬▬▬▬▬▬▬
00:00 Recap
00:56 Progress
01:33 A better board
05:15 Write-Through vs Write-Back
08:40 1024K L2 cache
10:05 Benchmarks
10:56 DOOM
11:26 Quake
11:50 TopBench
12:08 3D Bench
12:33 Chris 3D Benchmark
12:52 NSSI
13:12 SpeedSys
14:25 Conclusion