Dell 7625 Amd EPYC 9654 and 9684X processor bus is different why?

Hello,

 

This may take more research.

 

I'd like to confirm you're on the current BIOS and CPLD version.

 

BIOS version 1.4.6 - added Supports AMD EPYC Genoa-x CPUs.

 

Can you check that you're on the latest BIOS 1.7.2 and CPLD 1.5.3 ?

https://dell.to/4dEvaqN

Hello I do all firmware with OpenManage Enterprise. My server bios version is currently 9684x cpu: 1.7.2 System CPLD : 1.5.2 OMA has not released a new firmware for my server at the moment. 1.5.3 CPLD is new.What is the reason why this firmware does not appear in oma?


I downloaded 1.5.3 from the Dell PowerEdge 7625 website. I usually do firmware updates automatically with OMA. Can you write step by step the easiest way to update this firmware manually?

Hi,

to manually update the System CPLD firmware to version 1.5.3, you can follow these steps:

 

1. Download the System CPLD firmware update package (typically a .bin or .exe file) from the Dell support website for your specific server model.

 

2. Log into the server's Integrated Dell Remote Access Controller (iDRAC) web interface.

 

3. Navigate to the "Maintenance" -> "System Update" section.

 

4. Under the "Update Repository" tab, click "Browse" and select the firmware update file you downloaded in step 1.

 

5. Click "Upload" to transfer the firmware file to the iDRAC repository.

 

6. Once uploaded, go to the "Firmware Update" tab.

 

7. Select the "System CPLD" component and the new 1.5.3 firmware version.

 

8. Click "Install" to begin the firmware update process.

 

9. The server will likely need to be rebooted to apply the firmware update. Follow the on-screen prompts to complete the process[1].

 

By following these steps, you can manually update the System CPLD firmware on your Dell PowerEdge 7625 server to the latest 1.5.3 version, even if it is not yet available through OpenManage Enterprise. This ensures your server has the most recent firmware updates for optimal performance and stability.

 

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I have now upgraded to 1.5.3, but it still looks the same.Why doesn't it show 32 GT/s?


                  9864X CPU 

My other server is 7625 and my processor is 9654 but it shows up on it.

Can Numanode affect this situation? 

Hi,

there could be a few reasons why your Dell PowerEdge server is not showing the expected 32 GT/s link speed after upgrading the System CPLD firmware to version 1.5.3:

1. BIOS/Firmware Version Mismatch:
The search results indicate that to take full advantage of the 32 GT/s link speed, you need to have the latest BIOS/firmware versions for both the System CPLD and the CPU microcode[1]. While you updated the System CPLD to 1.5.3, your BIOS version (9684X) may be outdated and not compatible with the new CPLD firmware to enable 32 GT/s.

2. CPU Specification Differences: 
The processor model you have (9654) may not support the 32 GT/s link speed, even with the latest firmware updates. Different CPU models can have varying capabilities[1]. Your other server with the 9654 CPU may be showing 32 GT/s because of a newer CPU stepping or different platform configuration.

3. NUMA Node Configuration:
Yes, the NUMA (Non-Uniform Memory Access) node configuration can potentially affect the link speeds between the CPU and other components[1]. Depending on your server's NUMA topology and how the memory channels are populated, you may not see the full 32 GT/s link speed even after the firmware updates.

To further troubleshoot this issue, you should:

1. Update the BIOS/firmware to the latest version recommended by Dell for your specific server model and CPU[1][5].

2. Verify the CPU specifications and capabilities by checking the Dell product documentation or contacting their support.

3. Review the NUMA node configuration and memory population guidelines in your server's manual to ensure optimal performance[1].

4. Check for any Dell product advisories, tech alerts or knowledge base articles specific to enabling 32 GT/s on your server model after the firmware updates.

If the issue persists after taking these steps, you may need to contact Dell technical support for further assistance, as they have deeper insights into firmware and hardware compatibility matrices for enabling new features like increased link speeds.

Citations:
[1] https://dell.to/3K2jMaG

[2] https://dell.to/3wFrmoq

I have checked 2 servers in detail. All Bios-Firmware updates are final. I made all settings the same as the processer settings in the bios with 32 GT/s but nothing changed.  I can't figure out why the 9684X processor has ExternalBusClockSpeed 32 GT/s even though everything is the same. The processor supports 32 GT/s.

I mentioned the differences between them below. 

Bios-CPLD and Microcode Information of My Dell 9654 Processor;

Bios : 1.7.2
System CPLD : 1.1.3

Hello,

 

Have you run the hardware diagnostics make sure there are no issues?

 

Boot to <F10> LifeCycle controller and run diagnostics. Please let me know results.