Olivetti M4-6X / BA2054
RH-PHJW
This 1994 Olivetti M4-6X/BA2054 motherboard is interesting.There is no power connector, RTC battery or ISA slot. It has a soldered-on 486 SX 25 with 4 MiB RAM, Cirrus Logic VGA and a peculiar 34-pin CD-ROM interface. Several documented BIOS revisions. Neat. Very Olivetti!
Details
- Manufacturer
- Olivetti
- Model
- M4-6X / BA2054
- Kind
- Motherboard
- Year
- 1994
- Condition
- Working
- Source
- eBay order no. 10-15085-18434
- Acquired
- 2026-08-31
Specification
- Chipset
- ET6000
- CPU family
- 486-class
- RAM slots
- 72-pin SIMM
- Onboard RAM
- 4 MiB
- Onboard video
- VGA CL-GD5428
- Ports
- IDE, Floppy
Fitted in
Not fitted in anything.
Files
History
Acquired 2026-08-31 from eBay order no. 10-15085-18434 · held 1 month
- 2026-09-01
-
note capacitor missing
- 2026-09-01
-
note confirmed, will POST and boot with wiring as below note.
- 2026-09-01
-
note 5v .. .. GND .. GND .. GND GND .. GND .. PG ..
- 2026-08-31
-
note found photos of the riser...
- 2026-08-31