Universität Bonn

University IT and Data Center

Our WIFI never sleeps
We operate the central network of the University of Bonn.
We, the HRZ: traditionally modern
We are the contact point for all questions, ideas and projects concerning the central IT services of the University of Bonn. 
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Our WIFI never sleeps
We, the HRZ: traditionally modern
Is your mobile already connected to the Wi-Fi?

University IT and Data Center

The University IT and Data Center (Hochschulrechenzentrum, HRZ) is the central IT service provider of the University of Bonn

Dies academicus at HRZ: HPC guided tour

As part of the Dies academicus of the University of Bonn on May 15, 2024, interested participants had the rare opportunity to take a look behind the scenes and the usually closed doors of the ultra-modern high-performance computer "Marvin". The supercomputer, which was ranked among the top 500 fastest computers in the world with its impressive computing capacity at its official inauguration in autumn 2023, has been in operation since March 2024 and has been available for use by all members of the university ever since.

The guided tour of the "Marvin" machine room offered participants at Dies academicus the opportunity to learn more about the technical details and the wide range of applications of the high-performance computer. Interested parties were able to get an idea of the impressive technology on site and ask questions directly to the experts in charge.

Technical insights and infrastructure

The high-performance computer "Marvin" has around 300 computing nodes, some of which are equipped with powerful NVIDIA GPUs and some with Intel CPUs. The University IT and Data Center (HRZ) of the University of Bonn is responsible for the installation and operation of the system, but due to its enormous size and the special requirements of the system, "Marvin" was housed in the premises of the Institute of Numeric Simulation (INS), as the HRZ itself did not have sufficient space. The HPC/A-Lab is the central point of contact for HPC-related research projects.

The tour was conducted by Jan Steiner, HPC team member at the University IT and Data Center. A particular focus of the tour was on the power and cooling requirements of "Marvin". Operating such a powerful supercomputer not only requires an enormous power supply, but also an extensive cooling system to efficiently dissipate the heat generated and maximize system performance.

WLAN-equipment - Application possible until the end of May

Providing a network infrastructure that meets all user requirements is a complex task and requires the right resources and technologies as well as thorough analysis and planning, especially at a university.

The network department at the University IT and Data Center of the University of Bonn is currently facing various challenges.

On the one hand, the network department is faced with the task of managing a large number of new leases and renovations at the University of Bonn. First of all, moving into a new building means connecting the premises to the network infrastructure and thus creating the basis for work at the university. The WLAN network connection is established by so-called “access points” (distribution points), which not only have to be installed once, but also regularly maintained and replaced. The rapid increase in APs to currently over 1,900 (as of May 2024) and limited personnel resources lead to various problems. There is always an enormous backlog when it comes to replacing obsolete access points that have reached “EOL” (end-of-life) status. These are discontinued products that are no longer produced or supported and therefore need to be replaced with new products. Consequently, the replacement of these APs must be prioritized based on their critical importance for the network. The network department of the University IT and Data Center also coordinates the installation of the APs by external service providers.

On the other hand, the expansion of WLAN and the increase in new spaces and refurbishment projects are leading to an increased need for new installations.

The entire WLAN-equipment process requires not only a structured schedule, but also the implementation of project teams and the automation of planning and deployment processes in order to meet the requirements and achieve the necessary speed of deployment.

HPC: Guided tours on Dies academicus

As part of the upcoming Dies academicus on May 15, 2024, the HPC team at the University IT and Data Center is offering two guided tours in the machine room of the new high-performance computer "Marvin":

Start of guided tour group 1: 1:00 pm
Start of guided tour group 2: 1:30 pm

Please note: The number of participants is limited to 15 people per group. Participation without prior registration and confirmation is unfortunately not possible. If you are interested in participating, please contact Jan Steiner (jan.steiner@uni-bonn.de) by e-mail by Monday, May 13, 2024 at the latest.

Together with the confirmation of participation, you will receive all further information (including the meeting point) by e-mail.

Girls'Day 2024 at HRZ

What parts does a computer consist of? How do smartphones and laptops communicate? How do you create a secure password, what do the server rooms at a university look like and how does a 3D printer actually work? These and many other exciting questions were answered at this year's Girls'Day, the nationwide Girls' Future Day, at the University IT and Data Center. Once again this year, schoolgirls between the 8th and 10th grades were able to gain an insight into the world of IT and work at the University IT and Data Center. The aim of the Girls'Day was to inspire the participants with a combination of practical learning and a playful element for technology and to deepen their understanding.

The morning was designed as a big scavenger hunt through the University IT and Data Center. At individual stations, the participants got to know the IT helpdesk, the 3D printers, workstation systems and network communication. There were short presentations at each station, followed by a quiz. The aim of the scavenger hunt was to collect solution words that were required for the task in the afternoon. After the tour of the server rooms at the HRZ and the subsequent lunch break, it was straight on: in a model house with four offices, four Raspberry Pi's were waiting to be networked and wired up by the girls. Once the monitors, switches and keyboards had been connected, the master password could be entered and the network connections made.

Eine Wissenschaftlerin und ein Wissenschaftler arbeiten hinter einer Glasfassade und mischen Chemikalien mit Großgeräten.
© Universität Bonn

Help and Services

The University IT and Data Center offers a variety of services and provides support for them. You can find all services here:

System Status and Maintenance

The status of all systems of the University IT and Data Center, maintenance messages and current faults are available on a separate status overview at StatusPage.


All information about the Uni-ID. This is your access to the university's central IT services.


How do I access the internet and the university network on campus with my laptop, mobile phone and co?


With Confluence, you get a modern tool for your internal communication and collaboration.

Data Storage

You have research data on a large scale?
We have the infrastructure to securely store your data and continue working with it.

Ruderer im Botanischen Garten
© Volker Lannert / Uni Bonn


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Offers and projects at the HRZ


We train! Information about the apprenticeship as IT specialist


We offer a wide range of career opportunities in science and technology.


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About Us

We are happy to explain who we are, what makes us tick and what we are working on. 



The IT - Helpdesk is staffed from 8 am to 6 pm and will be happy to help you with your questions.


+49 (0)228 73 2751



Wegelerstraße 6

53115 Bonn

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