Can you share the server model. when you installing additional CPU you need to ensure that

• You have latest BIOS and iDRAC FW installed on the server
• Both CPU should be exactly same model
• Server PSU should be supported for Dual CPU config

If you have access to iDRAC can you check Lifecycle Log, SEL and POST code to see any error message regarding boot failure.

Hi,

Additionally you can run a hardware diagnostics:

https://dell.to/3m7xpuw

Steps

1. While the system is booting, press   to enter Boot Manager. Alternatively, press   to enter Lifecycle Controller.
2. Use the up and down arrow keys to select System Utilities → Hardware Diagnostics.

3. Note down the error code.

The following table describes the PSA/ePSA diagnostics error messages.

https://dell.to/2VXrJbG

Thank you

Maria Januszka

#IWork4Dell

Dell | Social Outreach Services - Enterprise

Normally it working well with 2 CPU after i add new RAM that issue happen.

When i put that CPU it can't be boot and can't log in to IDRAC 

when i put that processor to CPU 1 or CPU 2

it showing  "CPU 2 has a thermal trip (over-temperature) event."

after i removed that error processor it working well

Now i remove that processor and working with one processor

Hi Tun Myint Myat,

Could you let us know what processor model are you using for CPU1 and CPU2?

You did mentioned, it was working well with 2 CPUs until you added memory DIMM and issue appears? Can you let me know what model are the existing memories, are they Samsung M393A4K40BB0? Are you using the same memory modules to add to the server?

CPU1 and CPU2 module
Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz

Ram all are same

HMA41GR7MFR8N-TF TD AB

Hello @Tun Myint Myat,

The memory seems compatible to me. And the CPUs too, they are compatible.

I suspect there is a hardware issue. Does the CPU have any pin bended? The socket is clean and also ok? If you switch them it works well with one single processor? That will help you to discard if the problem is in the CPU itself or the socket.

Regards.

Can you share the server model. Can you try 2 CPU with only one dimm in A1 and B1 slot and try. If it is working you can add DIMM one by one in pair for both CPU and check when it is failing.