if you are not able to find your product, check the below link to manually search the server model/ number in the Hewlett Packard Enterprise Products: eg. ProLiant DL360 Gen9
You will get log of results like below:
Finally if the above of these do not help then you can raise case by clicking the below link. You need to create a HP passport login in case you do not have an account. HP Passport is a single sign in service that lets you use one User ID and password for all HP Passport-enabled websites.