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Added Olivetti OEM BIOS to TriGem Como & adjusted buses#6776

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OBattler merged 2 commits into
86Box:masterfrom
MaxwellS04:Olivetti_Como
Feb 2, 2026
Merged

Added Olivetti OEM BIOS to TriGem Como & adjusted buses#6776
OBattler merged 2 commits into
86Box:masterfrom
MaxwellS04:Olivetti_Como

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Summary

this PR adds the Olivetti OEM BIOS (Revision 1.08, date 06/05/1999) to TriGem Como.

Until their actual voltage and multiplier buses are found, I adjusted them to match other i440LX/EX machines. Pentium Pro/Pentium II OverDrive confirmed to work (despite being unknown CPU according to their AMIBIOS POST screen). Also added a note about onboard video.

Checklist

References

The Retro Web's entry on TriGem Como

The Olivetti OEM BIOS' date (06/05/99) is newer than the current one (01/18/99).

Until the actual voltage and multiplier bus speeds are found, I adjusted them to match other i440LX/EX machines. Also added a note about onboard video.
According to their 1.12 BIOS' first POST screen, it appears to be distributed by eMachines.
@OBattler OBattler merged commit b707592 into 86Box:master Feb 2, 2026
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@MaxwellS04 MaxwellS04 deleted the Olivetti_Como branch February 2, 2026 16:24
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2 participants