Isaac
5B13 is what is called CCIN and it is ordered with various feature codes depending on which OS is using it and its form factor. You should go to IBM Sales Manual for 9009-41G here: https://www.ibm.com/docs/en/announcements/power-system-s914-9009-41g-2023-10-24 and then do a search Ctrl+F with 5B13 and read which description of the feature code (ES8N, ES8P, ESGD, ESGE or some more that IBM no longer sells but you may be ale to find from used HW brokers) fits your case and use that feature code to order it.
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