PCI DSS Compliance with IBM Power i IBM Power i (System iAS/400) presents a unique set of challenges when it comes to PCI compliance. Power i hosts credit card processing applications such as home grown ERP and Web applications that accept and process credit cards. Although Power i systems are perceived as secure, this is not wholly accurate - system exit points are wide open and comprehensive application data trails are not provided by the operating system, allowing exposure of data and creating a new security need.