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    Under 512MB of RAM detected. Not enabling APC

    Scheduled Pinned Locked Moved Hardware
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    • S
      sorodocul
      last edited by

      I have 2Gb of RAM DDR1, why I get "Under 512MB of RAM detected. Not enabling APC" message?

      1 Reply Last reply Reply Quote 0
      • K
        kejianshi
        last edited by

        Bad ram?  Bad ram slot?

        1 Reply Last reply Reply Quote 0
        • D
          doktornotor Banned
          last edited by

          Would watch the POST messages in the first place. Chances are the board does not detect the incompatible chip properly at all.

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          • jimpJ
            jimp Rebel Alliance Developer Netgate
            last edited by

            Look in /var/log/dmesg.boot, in the first few lines it prints the amount of memory detected/available/etc.

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            • S
              sujyo1
              last edited by

              To avoid other upgrade problems, I decided not to update from gui and did full new install from usb. but same problem as subject. I check
              /var/log/dmesg.boot showing…

              real memory  = 3221225472 (3072 MB)
              avail memory = 3127234560 (2982 MB)
              Event timer "LAPIC" quality 400
              ACPI APIC Table: <ptltd  apic ="">FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
              FreeBSD/SMP: 1 package(s) x 2 core(s)
              cpu0 (BSP): APIC ID:  0
              cpu1 (AP): APIC ID:  1</ptltd >

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                What do you see if you run this at the command line:

                sysctl hw.physmem
                

                Steve

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                • S
                  sujyo1
                  last edited by

                  $ sysctl hw.physmem
                  hw.physmem: 3185926144

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                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Hmm, odd.
                    So you originally said you had 2GB but it looks like you have 3GB now, did you add more?

                    Steve

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                    • S
                      sujyo1
                      last edited by

                      yes…I did add ram...I missed to mention it...

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                      • J
                        jitender153
                        last edited by

                        Facing the same issue system is showing
                        hw.physmem: 3587276800

                        but still getting the same error. I do upgraded RAM FROM 2GB TO 4GB.

                        any help is highly appreciated.

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                        • D
                          divsys
                          last edited by

                          Facing the same issue system is showing
                          hw.physmem: 3587276800

                          but still getting the same error. I do upgraded RAM FROM 2GB TO 4GB.

                          In your case it's highly likely the BIOS is reserving part of your 4GB for something else….
                          If you have a motherboard based graphics card, the BIOS often will share 512MB for graphics.

                          With pfSense, you can safely reduce this in the BIOS to the minimum allowed as the console is text only (no graphics required).

                          -jfp

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                          • W
                            Weakestlink
                            last edited by

                            Had this same issue. Turns out my solution was to install the 64-bit version. IDK why that made the difference but it did!

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                            • T
                              tirsojrp
                              last edited by

                              2gb of DDR1? 64bit system? That must be a really old server .

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