Uploaded June 2025 | Updated September 2026, 1 week ago

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And here we are again with more tests with the SARC RC2016 chipset.
This time we have a motherboard with different layout, the PCChips M396F v3.0.
And for sure I am giving it a 486SXLC treatment.
I also include a mini soldering tutorial this time.

The clock doubler finally worked! Even thought this is not a 486SXLC2 chip.
Many unexpected things happened against common sense.
Unstable in the beginning, but in the end it worked 100%!

So this time I explore the clock double effect by comparing:
1) 486SXLC, 1 x 25MHz
2) 486SXLC, 2 x 25MHz
3) 486SXLC, 1 x 40MHz

So finally a proper 486sxlc2 review. Enjoy!


Modded BIOS file for RC2016 Motherboards.
drive.google.com/file/d/1DNq2IDfkiZTdpMsm5D-ljUpbMxSzWHtk/view

Benchmark results:
docs.google.com/spreadsheets/d/1X-5AHnvocH2Bk1E4PI7Da_2p6mqPxUlm/view

K2s Retro Workshop - RC2016 with working Clock Double:
youtube.com/watch?v=t415uFWPkmY

Marco-Both / M396F-Replika Github:
github.com/Marco-Both/M396F-Replika

skiselev / mb386sx-rc2016 Github:
github.com/skiselev/mb386sx-rc2016

-- TIMESTAMPS --
00:00 - Intro
00:43 - The M396F Replica.
02:53 - Closer look and mods.
04:19 - Plans for today - the CPU.
05:44 - Replacing the CPU (tutorial).
13:18 - CPU Swap outcome.
18:07 - Results at 2 x 25MHz.
21:08 - Results Comparisons.
24:39 - Outro / Conclusions.

This one had a lot of work. I hope you will enjoy it!
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