Threadripper 1920X supports low memory clock speeds.
Threadripper 1920X supports low memory clock speeds.
Hello all, I'm conducting research and my university gave me access to a machine with the specifications listed via SSH. My friend with root privileges ran a command to retrieve memory details, but the output didn't match expectations. It displays a speed of 1200 MT/s, which isn't optimal for performance. The system supports quad channel, so it should be handling 2400 MT/s. If anyone has insights on what might be going wrong or how to interpret the command/output correctly, that would be extremely helpful.
Details:
- OS: Ubuntu 20.04.4 LTS x86_64
- CPU: AMD Threadripper 1920X
- Memory: 4x 16GB Kingston at 2400 MT/s
- Command output shows SMBIOS info with various error codes and formats
- Specified performance targets are not being met
Let me know if you can clarify anything about the command or results.
DDR refers to double data rate, meaning 1200x2 equals 2400MHz. At this point, most technically they operate at half the claimed speed because of certain technical factors. Just like in your previous case, you should adjust how you read the signals. It’s unlikely you’re seeing DDR4 memory running at 1200MHz effective clock, since 2133MHz is the minimum required.
I thought the same thing: but it really does specify the speed in mega transfers per second, not mega hertz, which is supposed to have the doubling already included in the number. When I saw this I looked online for other people's output of the same command and almost nobody was getting lower configured speeds than normal speed, for most people it's their actual MT/s. Link to others using this command: https://www.linuxquestions.org/questions...175667218/
It's simpler to reach the BIOS now, or perhaps install Windows if your storage is free since there are more software choices available.
The reading shown in the decoder is incorrect. DDR4 typically reaches a minimum of 1600 MT/s or 800 MHz clock speed. The 1200 MT/s value appears to be inaccurate since Jedec DDR4 speeds never drop below 800. Boards with Jedec 2400 MT/s usually stick to that memory rate by default. Anything up to 2667 MT/s (1333 MHz) will reflect the rated Jedec speed. It's currently running at 1200 MHz / 2400 MT/s. No issues here.
If it's the institution's system, it still counts. Changing it isn't wise. I'd handle your tasks and then proceed.