HP memory - not fitting? (PC-5300F vs PC-5300P)

Posted on 2011-10-08
Last Modified: 2012-05-12
We have a server that's running HP PC2-5300F-555-11-B0 memory.  I purchased HP PC2-5300P-555-12-ZZ memory, and it doesn't fit... (the slot in the RAM doesn't match up).  

Not sure what the difference is... looks like one is "555-11" and one is "555-12", plus one is 5300P and the other 5300F.

Any idea?
Question by:Mystical_Ice
    LVL 21

    Accepted Solution

    PC2-5300F has fully buffered modules -- "server grade" RAM, also known as FB DIMMs.

    As you have noticed, the notches do not line up, as they are unique to fully buffered modules.  Therefore you can only put FB DIMMs into those slots.

    Author Closing Comment

    Thank you!

    Featured Post

    Why You Should Analyze Threat Actor TTPs

    After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

    Join & Write a Comment

    Usually shares are where we want them for our users and we tend to take them for granted. There are times, however, when those shares may disappear causing difficulty for your users. One of the first things to try is searching for files that shou…
    Moving your enterprise fax infrastructure from in-house fax machines and servers to the cloud makes sense — from both an efficiency and productivity standpoint. But does migrating to a cloud fax solution mean you will no longer be able to send or re…
    Migrating to Microsoft Office 365 is becoming increasingly popular for organizations both large and small. If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365…
    Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

    746 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    20 Experts available now in Live!

    Get 1:1 Help Now