The most common complaint about modern iLO 4 firmware is . Starting around version 2.83, HPE introduced aggressive workarounds for speculative execution vulnerabilities (Spectre/Meltdown) on the iLO’s own management processor.
The most common reason for a downgrade is the aggressive fan algorithm introduced in later versions (specifically around v2.73 and later). HP updated the firmware to be hyper-sensitive to "non-HP" hardware. If you install a third-party PCIe card—like a standard 10Gb NIC or an SSD—the newer firmware often can't read the temperature sensor on that card. downgrade ilo 4 firmware better
"Firmware Version: 2.73"
This performs a clean, scripted downgrade while keeping the configuration. The most common complaint about modern iLO 4 firmware is