Different memory speed showing in system than ordered

LSpaceTerrain on 03/10/2020 - 19:31

Hi
I recently ordered RAM with 3200 MHz but system is showing 2133MHz

I am using AMD Ryzen 5 3600 on AsRock B550

Why is it showing different speed?

Thanks

Computing

Comments

  • HaveANiceDay on 03/10/2020 - 19:33
    +2

    Have you checked your bios and adjusting it there?

  • Jugganautx on 03/10/2020 - 19:35
    +6

    Have you check it in bios or on a program like cpu-z?

    Also most times you have to select the XMP profile in bios to get advertised speed.

    Edit: there are a lot of PC questions like this on Toms hardware with direct solutions, and have helped me a lot. So my advice would be to go there first.

    • apsilon on 03/10/2020 - 19:44
      +1

      Maybe listed as DOCP rather than XMP given XMP is Intel. DOCP is the AMD version but manufacturers don't always follow it.

    • Kendrite13 on 03/10/2020 - 20:23
      +1

      I had the same problem as OP. Jugganautx answer was what fixed it for me. Select the XMP profile in BIOS and make sure you save your settings when you exit BIOS.

      Good luck and have fun with your new build.

  • Diverse on 03/10/2020 - 19:44

    Either you didn't change the XMP profile or you need to update your UEFI BIOS to the latest version.

  • SpaceTerrain on 03/10/2020 - 20:10

    Thanks.

    I tried to change profile in bios but it returned to 2133 after saving and exiting bios.

    I just built my system today. I'll check if bios updates are available.

    I'll check Toms hardware forums.

  • Davo1111 on 03/10/2020 - 22:34

    check bios compatibility, many are compatible, but at a lower clock speed.

  • whooah1979 on 04/10/2020 - 04:48

    Look at the sticker on the ram. What does it say?

  • SpaceTerrain on 04/10/2020 - 08:29

    it is suppose to be https://www.gskill.com/specification/165/185/1567584071/F4-3… . There is no info on stickers.

    I tried to change to following as listed on page
    Speed: 3200MHz
    Latency: 16-18-18-38
    Voltage: 1.35V

    but it goes back to 2133. I think I got https://www.gskill.com/specification/165/185/1534752219/F4-2… instead of the one I ordered.

    Asrock B550 Pro 4 Motherboard supports 4733+

    I have sent email to seller. Lets see what they say.

    • Davo1111 on 04/10/2020 - 16:18

      have sent email to seller. Lets see what they say.

      Unless they sold you a complete working pc, and advertised the speed, they won't say much

      See my comments below about compatibility

  • SpaceTerrain on 04/10/2020 - 09:01

    Information from CPU-Z

    https://imgur.com/a/tn1IwVF

    In screenshots it is even lower at 1066 MHz.
    I guess I need lots of reading to understand RAM specifications.

    • Screamingeagle on 04/10/2020 - 09:07
      +1

      DDR stands for Double Data Rate. This means that there are 2 dataticks per clock cycle. If you double it you find you have 2133MHz
      CPU-Z often (but not always) shows the clock cycle speed. (source)

  • whooah1979 on 04/10/2020 - 09:28

    https://download.asrock.com/Manual/B550M%20Pro4.pdf

    2.3 Installing Memory Modules (DIMM)
    This motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
    and supports Dual Channel Memory Technology.
    AMD non-XMP Memory Frequency Support
    Ryzen Series CPUs (Matisse):
    1. For dual channel configuration, you always need to install identical (the same
    brand, speed, size and chip-type) DDR4 DIMM pairs.
    2. It is unable to activate Dual Channel Memory Technology with only one or three
    memory module installed.
    3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4
    slot; otherwise, this motherboard and DIMM may be damaged.
    4. We suggest that you install the memory modules on DDR4_A2 and DDR4_B2 first
    for better DRAM compatibility on 2 DIMMs configuration.
    UDIMM Memory Slot Frequency
    A1 A2 B1 B2 (Mhz)
    - SR - - 3200
    - DR - - 3200
    - SR - SR 3200
    - DR - DR 3200
    SR SR SR SR 2933
    SR/DR DR SR/DR DR 2667
    SR/DR SR/DR SR/DR SR/DR 2667
    Ryzen Series APUs (Renoir):
    SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
    DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
    UDIMM Memory Slot Frequency
    A1 A2 B1 B2 (Mhz)
    - SR - - 3200
    - DR - - 3200
    - SR - SR 3200
    - DR - DR 3200
    SR SR SR SR 2933
    SR/DR DR SR/DR DR 2667
    SR/DR SR/DR SR/DR SR/DR 2667

  • Davo1111 on 04/10/2020 - 16:17

    Click support, then download the PDF with all the memory listed

    https://www.asrock.com/mb/AMD/B550M%20Pro4/#MemoryMS

    You will probably need to choose the correct series first

    Btw, ryzen has been very picky with ram. The downside of having multiple generations of cpu compatible with the same board.

    Check the board firmware too.

  • SpaceTerrain on 04/10/2020 - 18:42

    Thanks.

    Next time I'll do this research before buying parts. I used pcpartpicker but should have asked questions about build from other users first.

    Added to my notes and setup 4 years reminder as I think this should last 5 years.

    Lesson learned.

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