Windows 8 and 8.1 Forums


Missing 4 GB of Memory

  1. #1


    Posts : 10
    windows 8 pro

    Missing 4 GB of Memory


    My DELL Inspiron registered Physical Memory - 8 GB, when I first purchased it 15 months ago, and upgrade from Windows 8 to Windows 88.1 PRo X64.

    It comes with [2X4 CB] of DDR3 RAM.Recently I did a PSU Upgrade, and on a hunch, I checked the amount of Memory installed in Comtrl Panel >? System and it shows : 4 GB.

    Using Belarc advisor it shows only 4 GB in DIMM #1 and nothing in DIMM #2 . I also have Upfated my A11 AMBIOS BIOS from DELL site





    Using a process of Elimination suggested, these are the results I tested on individual Memory with Individual Memory Channels or sockets.


    - Starting with what I got with I had installed now, I assume that the Memory stick on DIMM #1 is - Good and obviously DIMM #1 socket is good too. [ indicated by Belarc- advisor on the screenshot]








    - Popped out the Memory Stick from DIMM #2, and snapped back the retaining clicks and Rebooted
    >>> Booted well, and obviously shows 4 GB in System.

    - Cleaned the gold contacts of the removed Memory stick from DIMM #2, and air blasted the memory channel as well. Reinstalled by making sure it is seated well [ the clips snapped back in place, when pressure is applied to the Memory stick ] - This step is obviously to eliminate the possibility that the Contacts or the channels are "dirty".
    >>> Rebooted, Same result showing 4 GB.

    - Nest, Pop out the Memory stick from DIMM #2 , making sure I made a indication on the Memory to identified it, not to mix up with the one on DIMM #!. Popped out the memory stick from DIMM #1 and installed it on DIMM #2, and snapped back the clicks on DIMM #1 and Rebooted.
    >> Won't boot, Beeping noise heard. That elimiated the Memory stick that I removed is Good and I confirmed that in the Next step.

    - Air blasted The Memory Channel, making no dust accumulated , and I installed the Original Memory stick that I cleaned from DIMM #2 , and installed it on DIMM #1. Rebooted well,and it still shows 4 GB in System.



    - I am kinda upset that I cannot use the other 4 GB, kinda settle with the notion DIMM #2 is "Bad"


    Is there anything else I can try?
    Last edited by xptowindows8; 10 Mar 2014 at 22:29.

      My System SpecsSystem Spec

  2. #2


    Bow, WA
    Posts : 80
    Windows 8.1 Pro With Media Center


    I would say that for some reason, that the PSU might have something to do with it. What is the brand and model number of the PSU?





    Why exactly did you change the PSU without doing any upgrades that require any more watts?
      My System SpecsSystem Spec

  3. #3


    Posts : 10
    windows 8 pro


    Quote Originally Posted by dukethedj View Post
    I would say that for some reason, that the PSU might have something to do with it. What is the brand and model number of the PSU?






    Why exactly did you change the PSU without doing any upgrades that require any more watts?

    Thermaltake TR2 500W Power Supply

    - Might want to upgrade the Video Caed, if I find a deal, also, I have 2 SATA Drive + 1 SSD [ C:\] installed.

    Funny, I tried a couple of times to Reset the BIOS to Factory settings, but I seem to end up with the updated BIOS A11 AMBIOS?

    If the BIOS and Windows cannot see the other 4 gigs,must be a BIOS problem.
      My System SpecsSystem Spec

  4. #4


    Bow, WA
    Posts : 80
    Windows 8.1 Pro With Media Center


    That PSU is a reliable PSU. It is DEFINENTLY a bios problem. The weird thing is, my friend has a dell inspiron laptop and updated to that bios and now had only 2 GB of the 4GB shown (It said 2.00 GB, not 4GB installed 2Gb usable). Its is a bug.
      My System SpecsSystem Spec

  5. #5


    Posts : 10
    windows 8 pro


    Quote Originally Posted by xptowindows8 View Post
    Quote Originally Posted by dukethedj View Post
    I would say that for some reason, that the PSU might have something to do with it. What is the brand and model number of the PSU?






    Why exactly did you change the PSU without doing any upgrades that require any more watts?

    Thermaltake TR2 500W Power Supply

    - Might want to upgrade the Video Caed, if I find a deal, also, I have 2 SATA Drive + 1 SSD [ C:\] installed.

    Funny, I tried a couple of times to Reset the BIOS to Factory settings, but I seem to end up with the updated BIOS A11 AMBIOS?

    If the BIOS and Windows cannot see the other 4 gigs,must be a BIOS problem.


    Too bad I don't seem to be able to REe-nstalled the Original the BIOS that came with the DELL, and It probably won't let me install an Older version.

    Might have to make some "noise: in the DELL Forum about the "bug", if your friend has the same problem with the memory.
    Last edited by xptowindows8; 10 Mar 2014 at 22:28.
      My System SpecsSystem Spec

  6. #6


    Bow, WA
    Posts : 80
    Windows 8.1 Pro With Media Center


    It might. The worst that can happen is that the installer wont install the files. Try it! Have a good night
      My System SpecsSystem Spec

  7. #7


    Joisey
    Posts : 315
    Windows 8.1 consumer 64 bit


    To me your testing has proved that DIMM #2 is bad. Unless you still have a warantee in effect, head on over to crucial.com and buy a replacement (or better yet an upgrade!).
      My System SpecsSystem Spec

  8. #8


    Bow, WA
    Posts : 80
    Windows 8.1 Pro With Media Center


    Yes, that might also be the problem. What are you using your PC using for? Usually for moderate gaming or just other things, 4gb is just fine.
      My System SpecsSystem Spec

  9. #9


    Bow, WA
    Posts : 80
    Windows 8.1 Pro With Media Center


    Quote Originally Posted by xptowindows8 View Post
    Quote Originally Posted by dukethedj View Post
    I would say that for some reason, that the PSU might have something to do with it. What is the brand and model number of the PSU?







    Why exactly did you change the PSU without doing any upgrades that require any more watts?

    Thermaltake TR2 500W Power Supply

    - Might want to upgrade the Video Caed, if I find a deal, also, I have 2 SATA Drive + 1 SSD [ C:\] installed.

    Funny, I tried a couple of times to Reset the BIOS to Factory settings, but I seem to end up with the updated BIOS A11 AMBIOS?

    If the BIOS and Windows cannot see the other 4 gigs,must be a BIOS problem.
    If I could make a suggestion to a video card I would highly recommend the GTX 750 Ti. The reference model doesn't even have a pci-e power plug so it would be a great performer for light gaming and will save you on your energy bill.
      My System SpecsSystem Spec

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