The Selfservice offers various accounts for different services. Some of these accounts are set up automatically after the registration e.g. the RWTH Single Sign-On account, others can be added afterwards, depending on your membership of RWTH Aachen University. Therefore you first need to select the tab "Accounts and Passwords" and then click on “Create Account” in the upper part of the page:
If you e.g. do not yet have an account for the PC-Pool or cannot access the high-performance computing, those can be selected here.