Half System Reserved Memory + Half Memory Speed

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  • phillpower2
    PCHF Administrator
    • Sep 2016
    • 15205

    #31
    (y)

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    • TheDiagGuy
      PCHF Member
      • Jul 2019
      • 114

      #32
      Well, I finally got another board. MSI 990FXA-GD80 V2. Brand new. Opened, but legitimately brand new. Got full RAM now, no half reserved. However, it’s running at half speed still. Here’s the speccy. I know the argument for the double data rate will be said, but again, I haven’t had a single “userbenchmark” come up with just the single data rate. It always shows the doubled rate when the RAM is working correctly.



      This speccy is with the most up-to-date BIOS.

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      • phillpower2
        PCHF Administrator
        • Sep 2016
        • 15205

        #33
        Speccy is reporting the RAM correctly, 2 Xs 799MHz = 1598MHz, not quite 1600MHz but better than the 50% that you were getting.

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        • TheDiagGuy
          PCHF Member
          • Jul 2019
          • 114

          #34
          Originally posted by phillpower2
          Speccy is reporting the RAM correctly, 2 Xs 799MHz = 1598MHz, not quite 1600MHz but better than the 50% that you were getting.
          Then why does windows and userbenchmark report it as only 800 when they normally report it as the doubled rate?

          Please refer to our previous discussion…


          This is a similar situation. I’ve never had a PC report on either Windows in the task manager or on userbenchmark as the single data rate.
          I could test this on literally 7 different PCs right now and have the doubled data rate show on both Windows task manager and userbenchmark right now to prove it if needed.

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          • phillpower2
            PCHF Administrator
            • Sep 2016
            • 15205

            #35
            What does it say in the MBs BIOS.

            Same question regarding Speccy here

            If you run CPU-Z that should report both 1600 and 800MHz or the possibly already reported 799MHz as shown in Speccy.

            I fix things so don[ICODE]t need to get involved in benchmarks and can[/ICODE]t even name you a single benchmarking tool tbh.

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            • TheDiagGuy
              PCHF Member
              • Jul 2019
              • 114

              #36
              Originally posted by phillpower2
              What does it say in the MBs BIOS.

              Same question regarding Speccy here

              If you run CPU-Z that should report both 1600 and 800MHz or the possibly already reported 799MHz as shown in Speccy.

              I fix things so don[ICODE]t need to get involved in benchmarks and can[/ICODE]t even name you a single benchmarking tool tbh.
              CPU-Z doesn’t report the doubled rate at all on any rig as I’ve seen. Just the single data rate (799 actually as you said). In the BIOS for the MB it shows the RAM specs as 1600 MHz. Unsure if it shows a different actual clock speed. I’ll have to check that when I get home.

              What about windows task manager? Have you ever had that show the ram speed as the single data rate?

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              • phillpower2
                PCHF Administrator
                • Sep 2016
                • 15205

                #37
                See attachment below;

                Not using the desktop atm but just checked on the notebook and Task Manager does not say single or double.

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                • TheDiagGuy
                  PCHF Member
                  • Jul 2019
                  • 114

                  #38
                  On CPU-Z I have a newer version so it shows the PC3-12800 instead of the DDR3-1600. Not sure what it’s showing on the rig in question.

                  As far as the task manager goes, see attached. On this rig I have 1600 MHz clocked down to 1333 cause it’s an older AM3 rig. On the rig in question it shows 800 MHz where it is circled. Every other rig I own reports the doubled rate in this section.[ATTACH type=“full”]5539[/ATTACH]

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                  • phillpower2
                    PCHF Administrator
                    • Sep 2016
                    • 15205

                    #39
                    If the RAM is shown to be working as it should can I ask what your concern is.

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                    • TheDiagGuy
                      PCHF Member
                      • Jul 2019
                      • 114

                      #40
                      On the rig in question - which has 1600 MHz RAM - in Windows task manager it shows the RAM as 800 MHz speed. On the rig in question on userbenchmark it shows the RAM as 800 MHz speed.
                      On a different rig with 1600 MHz RAM Windows task manager and userbenchmark both show 1600 MHz.
                      On two different rigs with 2666 MHz RAM (One Ryzen one Intel) Windows task manager and userbenchmark both show 2666 MHz.
                      On the rig I am typing from, the ram is 1600 MHz RAM and on Windows task manager and userbenchmark both show 1333 MHz (because the MOBO slows it down).

                      My concern is this: Why is it showing 800 MHz (which is half of what it should be) on Windows task manager and userbenchmark on ONLY the rig in question?

                      Also referring to the other thread I posted in - which I mentioned a few posts ago in this thread - on that rig (which is the AMD rig I mention above in this post) the memory was clocking as 1333 MHz in Windows task manager and userbenchmark, but was a happy 2666 MHz in the BIOS and was showing up like everything was normal in CPU-Z and Speccy. On that rig after I updated the BIOS, Windows task manager and userbenchmark both began reporting the RAM as 2666 MHz. What changed before and after the BIOS update in this situation that made Windows task manager and userbenchmark start reporting the RAM as running at 2666 MHz?

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                      • system
                        PCHF Owner
                        • Jan 2015
                        • 7656

                        #41
                        This has to be close to flogging a dead horse?

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                        • TheDiagGuy
                          PCHF Member
                          • Jul 2019
                          • 114

                          #42
                          Originally posted by gus
                          This has to be close to flogging a dead horse?
                          I’m not sure how this is a “flogging a dead horse” situation. As far as I’m concerned the RAM in my rig is running at half speed. I understand Speccy and CPU-Z, may say one thing, but my benchmarking software and Windows task manager says otherwise.

                          I am an automotive diagnostic technician. “TheDIagGuy” It’s my job to ask why and then figure out why and how to fix it. To me, it is not normal for Windows task manager and userbenchmark to report my RAM as running at 800 MHz speed when on every other rig I own it reports my RAM as running at the doubled rate. On the unit I am typing on now, (a Macbook Pro with Bootcamp) the Windows task manager and userbenchmark both report my RAM as 1600 MHz not 800 MHz which is the non-doubled rate. See the screen shot. This is an example of a DDR3 1600 MHz rig showing 1600 MHz in the task manager. If no one has an explanation or a way to attack this issue, I understand. To me, it’s not normal thus indicating a potential problem and I would like to correct it. I unfortunately lack the knowledge and skills to correct it on my own which is why I am here because you guys are awesome and have helped me a lot in the past.
                          [ATTACH type=“full”]5541[/ATTACH]

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                          • phillpower2
                            PCHF Administrator
                            • Sep 2016
                            • 15205

                            #43
                            Originally posted by TheDiagGuy
                            As far as I’m concerned the RAM in my rig is running at half speed. I understand Speccy and CPU-Z, may say one thing, but my benchmarking software and Windows task manager says otherwise.
                            If the RAM is shown to be running at the correct speed in the BIOS then it is, to confirm it, use and rely on CPU-Z, having done some research benchmark is said to be unreliable, see Toms thread here

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                            • TheDiagGuy
                              PCHF Member
                              • Jul 2019
                              • 114

                              #44
                              So then it’s normal for Windows task manager to show the single data rate on some builds but the doubled on others?

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                              • phillpower2
                                PCHF Administrator
                                • Sep 2016
                                • 15205

                                #45
                                Never come across this before tbh but it does look to be the case.

                                As said, let the BIOS be your guide.

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