Log into the iRMC web interface (default IP via BIOS or DHCP) →
Go to System Configuration → License Management
There you’ll see if an Advanced/Premium license is active.
Via CLI (SSH to iRMC):
show /system/license
Historically, Fujitsu offered a 30-day trial license via the iRMC web interface ("Request Trial"). However, as of 2023-2025, this self-service trial has been deprecated on many firmware versions. Contact Fujitsu support directly for evaluation options.
(If a CLI or REST interface is used, use the Fujitsu iRMC administration guide for exact commands for your firmware version.) fujitsu irmc s4 license key
Before discussing the license, we must understand the platform. iRMC S4 is the fourth generation of Fujitsu's proprietary out-of-band (OOB) management technology, comparable to Dell's iDRAC (Integrated Dell Remote Access Controller) or HP's iLO (Integrated Lights-Out).
Embedded directly on the motherboard of PRIMERGY servers (such as the RX1330, RX2540, TX1320, etc.), the iRMC S4 is a separate computer running its own operating system, firmware, and network stack. It allows administrators to:
Even with a valid key, things can go wrong. Log into the iRMC web interface (default IP
Before diving into licensing, it is essential to understand the underlying hardware. The iRMC S4 is Fujitsu’s fourth-generation Baseboard Management Controller (BMC). It is an embedded service processor located on the motherboard of supported PRIMERGY servers. Its primary job is to operate independently of the host CPU, OS, or hypervisor, allowing administrators to manage the server remotely as if they were physically at the console.
Key capabilities of the base (unlicensed) iRMC S4 include:
However, the base version is deliberately limited. To turn the iRMC S4 into a true enterprise remote management engine, you need a license key. Historically, Fujitsu offered a 30-day trial license via
Licenses are server-specific and tied to the server’s serial number (often via the Product ID or iRMC MAC address).
⚠️ There are no valid universal key generators – keys are cryptographically signed per device.