Processors

[Pb]

I'm updating my system to a H11DSI-NT, 256gb RAM ECC, and bought two 7551p's.

I was very excited until I'd realised I'd made a (massive rookie error. The epyc CPU's ending with a 'P' aren't made for a duel-socket setup.

My ideal scenario is that they work, but am afraid after reading that I might brick one or both CPU's.

I've read it's possible to use a single 'P' CPU in a dual socket motherboard so I know I could upgrade to a compatible pair later down the line

Does anyone know what happens if I put both 'P' CPU's in the motherboard?

Does anyone have any suggestions for my particular predicament?

All help and commentary is welcome, thanks in advance!

[BillyFeltrop]

If you accidentally bought two AMD Epyc 7551P CPUs for a dual-socket motherboard like the H11DSI-NT, it's important to note that the 'P' variant is not intended for use in a dual-socket configuration. Placing both 'P' CPUs in the motherboard could potentially lead to compatibility issues or system instability.

The 'P' CPUs are designed for single-socket setups, and using them in a dual-socket configuration might not work as intended. It is not recommended to try using both 'P' CPUs in the motherboard simultaneously, as it could potentially cause damage or result in a non-functional system.

For your particular predicament, the best course of action would be to contact the vendor or store where you purchased the CPUs and explain the situation. They might be able to help you with an exchange or return, especially if it's a genuine mistake. If an exchange or return is not possible, you might consider selling the 'P' CPUs and purchasing compatible dual-socket Epyc CPUs.

Overall, it's crucial to ensure that the components you use in your system are compatible and correctly configured to avoid any potential issues or damage to your hardware.

[Pb]

Apologies for the late reply! Thanks ever so much for clarifying on the above. The CPU's are due to arrive today so I shall test them both individually in the first socket. I know certain motherboard features won't work unless the 2nd socket is populated, but I should be ok without them for the time being. 

I'm currently contending with another issue plaguing the 2nd hand EPYC market.....the dreaded vendor lock the seller claims they're tested and working, but doesn't know what system they were tested in so I actually have zero clue if they'll work in my Super micro motherboard. I shall try and return them if one or both are vendor locked.

Again thanks for the advice! 

[elstaci]

If no answer from here try posting at AMD Forum's Server Guru that deals with everything to do with EPYC processors and its hardware: https://community.amd.com/t5/server-gurus/ct-p/amd-server-gurus