IBM eServer i5 550 (9406-550)
You have an i5 550 9406-550. Here's what that means in 2026: IBM's step-up Power5 server, outside IBM's standard support since staged 2019-2020 withdrawals.
The eServer i5 550 (9406-550) was IBM's step-up Power5 server, scaling to 4 processors for commercial IBM i workloads that had outgrown an entry-level i5 520.
i5 550 at a glance
Where it stands in 2026
i5 550 lifecycle status
| Milestone | Date | What It Means |
|---|---|---|
| End of standard IBM support | Staged, approximately 2019-2020 | IBM no longer provides hardware maintenance, machine code updates, or security patches. |
| IBM i ceiling | Approximately IBM i 6.1 | Multiple releases behind even Power6-era hardware, with no OS upgrade path on this hardware. |
Dates per IBM's staged services-withdrawal announcements and published third-party lifecycle tracking; exact date varies by feature code.
See our maintenance page for third-party support options and our migration comparison for what a modern replacement actually looks like.
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