64-bit Common Hardware Reference Platform (CHRP) machines running POWER8, POWER9, Power10, or Power11 processors in POWER8 (or later) compatibility mode.
Search for AIX V7.3 or select it from the list of operating systems. You may need to select your specific machine type and serial number if prompted.
The serial number of your machine must be registered in your ESS profile to authorize the download of the AIX 7.3 software. Step-by-Step Download Process download aix 7.3 iso
Visit the IBM Entitled Systems Support website and sign in with your IBMid.
You need a registered IBM account to log into the portal. The serial number of your machine must be
Once the base OS is installed via the ISO, you can maintain your system using these secondary sources: AIX 7.3 Release Notes - IBM
At least 20 GB of physical disk space for a default installation. Once the base OS is installed via the
Your IBM Power Systems hardware must have a current and valid maintenance contract linked to your IBMid.
