Tyan Computer Corp — server/workstation motherboard maker (IEEE MA-L)

A MAC starting A0:42:3F or 00:E0:81 belongs to Tyan Computer Corp, typically seen on server and workstation motherboards — the onboard NIC or the baseboard-management-controller (BMC/IPMI) management interface, rather than an end-user consumer device.

Tyan was founded in 1989 to serve the SMP (symmetric multiprocessing) server motherboard market, and built a track record designing dual-AMD and supercomputer-class server platforms in its early years. The IEEE registry lists two MA-L blocks under Tyan Computer Corp, both keyed to a Fremont, California address, which points to an established manufacturer rather than a single-product shell registrant.

Tyan became a subsidiary of MiTAC International following a merger finalized October 1, 2007. When MiTAC spun off its Cloud Computing Business Group into MiTAC Computing Technology Corporation in 2014, Tyan continued on as a server/workstation brand under that entity — the same corporate family already documented elsewhere in this vendor set (MiTAC, MiTAC International, MiTAC Computing Technology).

Search-result snippets describe the current Tyan product line as AI, HPC, multi-node, enterprise and storage server platforms, consistent with an active, not dormant, registrant. No CVE record names Tyan-branded hardware specifically as of a September 2026 search; Tyan does appear among the server-motherboard vendors whose products have shipped with AMI MegaRAC BMC/IPMI firmware, a firmware lineage that has drawn industry-wide security scrutiny across many server brands collectively — that is ecosystem context, not a Tyan-specific advisory.

Device class

Server and workstation motherboards; onboard NICs and BMC/IPMI management interfaces

Registrant

Tyan Computer Corp (the IEEE MA-L registry A0423F, the IEEE MA-L registry 00E081)

Registered address

3288 Larurelview Court, Fremont, CA, US 94538 (A0:42:3F); 3288 Laureview Ct, Fremont, CA, US 95035 (00:E0:81) — same street, two registry snapshots

Corporate parent

MiTAC International (merger finalized 2007-10-01); operates today under MiTAC Computing Technology Corporation (spun off 2014)

IEEE assignment

Tyan Computer Corp — two MA-L blocks, A0:42:3F and 00:E0:81 [Confirmed] — the IEEE MA-L registry A0423F, the IEEE MA-L registry 00E081

Registry / block size

MA-L; 2 prefixes; no MA-M or MA-S (OUI36) assignments found [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

HQ / country

Fremont, California, US [Confirmed] — the IEEE MA-L registry A0423F

Company status

Active; subsidiary brand of MiTAC Computing Technology Corporation, part of the MiTAC International group [Confirmed] — https://en.wikipedia.org/wiki/Tyan

Founding

Founded 1989 to serve the SMP server motherboard market [Confirmed] — https://en.wikipedia.org/wiki/Tyan

Corporate history

Became a MiTAC International subsidiary via merger finalized 2007-10-01; folded into MiTAC Computing Technology Corporation after its 2014 spin-off [Confirmed] — https://en.wikipedia.org/wiki/Tyan

Device types

Server/workstation motherboards; BMC/IPMI management interfaces [Likely] — https://en.wikipedia.org/wiki/Tyan

Current product line

AI, HPC, multi-node, enterprise and storage server platforms [Likely] — search-result snippets, direct site fetch failed on a certificate-hostname mismatch

Security context

No Tyan-specific CVE found as of a September 2026 search; named among vendors in the AMI MegaRAC BMC firmware ecosystem, which has drawn industry-wide scrutiny [Likely] — https://en.wikipedia.org/wiki/MegaRAC, https://www.runzero.com/blog/ami-megarac-bmc/, https://www.csoonline.com/article/574181/flaws-in-megarac-baseband-management-firmware-impact-many-server-brands.html

Assignment dates

Unknown — IEEE publishes no OUI assignment dates [Confirmed]