Hello everyone .
I got the jamicon KM-T5-V rev.2 motherboard. The motherboard did not have a bios, I got a link to the bios on the forum, I burned it on W27C020 (doubled). The album came back to life, "partially".
The bios baud card shows the code C6, 11
C6 - External cach size detection

The processor I used was the Pentium 133,
I set the jumpers according to the diagram from the link:
https://pcrebuilding.altervista.org/94/252/MO … IMEI_JAMICON_KM -T5-V_rev_2_jumper_settings.pdf

Now what I was checking:
I checked the capacitors, they are in perfect condition (they have better parameters than the new ones I have)
I checked the UM61256 bone - functional
I soldered the L2 memory bones chach UM613232AF.
In desperation, I desoldered the UM613232AF bones and tried to run the board on only extended memory, the board has a suitable slot. And all for nothing, I'm out of ideas. What else could I do to save this album? All advice will be appreciated.