BIOS startup

maksg wrote on 2023-04-02, 18:15:

Hi all […]
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Hi all

I know you guys are a super guru to help to find a manual. Please help to find a manual for P5/6x86 SBC Ver:G5 560G5A
This is a single board ISA 16 bits bus computer. Supports P54C/P55C CPUs. (Theoretically up to 200 Mhz MMX).
The original pictures of this SBC are attached.
Currently installed Intel P133 ceramic iPP SSS CPU
Please help! Thanks.

The P6 in the BIOS string (2A5KFP6EC) suggests its a Protech board...probably the PC-560-G5. Although not a direct match, you could try the jumpers for the PC-560, linked here https://theretroweb.com/motherboards/s/protec … c-560#downloads

PC Hoarder Patrol wrote on 2023-04-02, 20:53:

The P6 in the BIOS string (2A5KFP6EC) suggests its a Protech board...probably the PC-560-G5. Although not a direct match, you could try the jumpers for the PC-560, linked here https://theretroweb.com/motherboards/s/protec … c-560#downloads

Thank you! It helped. I used that manual + oscilloscope + Socket7 pinout scheme and figure out how main jumpers are working.
I couldn't figure out what jumpers JP1 and JP9 are doing, yet. Will try later.