6GB of memory, but 2GB don't show

  1. I have 6 gigs of crucial ballistix memory at 1600 mhz on my computer. I've had it for about half a year, and it has ran great until about a week ago. One of the sticks is not being recognized by windows, so now i only have 4/6 gigs of memory. The strange thing is, that speccy does see the memory, but it says that only 2 out of 6 memory slots are being used instead of 3 out of 6.

    I am using windows 7 ultimate 64bit
  2. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    go into the bios and check the ram slots and see if all 6 show up
  3. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    Sorry, I don't see that tab in the bios.
  4. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    what motherboard do you have?
  5. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    Its a p6t deluxe v2, ALso i found the ram amount on it and it says 4088 mb
  6. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    i would say that the last 2gig stick was dodgy or has blown. just incase check out what the warrenty is on them, also have u done flashed the bios to the most updated?
  7. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    I have never flashed the bios before. the mother board ramslots work just fine. what i find weird is that speccy says there are6 gigs, but windows only sees4
  8. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    Ok sorry i miss read the speccy bit above, in that case it means the motherboard hasn't activated all memory slots, this could be because of either the bios version is out of date or the voltages and timmings are not set right in the bios, i just recently had exactly the same problem with my 12gig of ram with only 6-8 activating at a time, go to "http://www.asus.com/Motherboards/Intel_Socket_1366/P6T_Deluxe_V2/#download" for bios update
  9. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    Alright thanks so much! Btw, is there a way to backup the old bios, because i don't want to fumble around blindly and somehow mess my computer up.
    EDIT: also, which one should i download XD, i have no idea
  10. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    yes there should be a bios updater program either inside the new version or part of the utilities on that website that will allow you to backup your bios version, also download all bios versions and update in order (safer then jumping straight into the newest one)
  11. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    kk thanks.
    EDIT: so do i download AFUDOS, or AFUDOS BIOS UPDATE TOOL? Or would either work
  12. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    no problem let me know if it fixes it because the next step gets a fair bit harder
  13. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    That's strange... I downloaded the 64 bit version, but it says its not compatible with my pc. The 32 bit version doesn't work. (AFUDOS BIOS UPDATE TOOL)
     
  14. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    Try the one above
  15. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    Ive tried both. anyways, m going to go to my friends house to test the ram before flashing the bios. thank you very mucj
  16. DKRON

    DKRON TechSpot Enthusiast Posts: 518   +7

    this is exactly why i only buy gigabyte motherboards lol, well good luck with that
  17. stanpasquale

    stanpasquale Newcomer, in training

    I was going to say that on x86 versions of OS (win xp, vista, win7 etc) you will only be able to use 4 GB of memory. Since you say in your post that it worked fine for quite a while and now its only showing 4 GB - seems to imply that you have a stick that went bad (or is not seated properly) - I have seen memory loosen up so that itś not seated all the way (aka chip creep). I would try each stick (pulling out 2) and verify that the PC see´s the dimm. You might find a bad dimm or more possible that a chip was not seated all the way!

    Good luck,
    Stan
  18. krs205

    krs205 Banned

    install in pairs

    Your motherboard is probably looking for you to install your memory in pairs. I would get another 2 gb stick and see what happens with 4 sticks installed instead of 3.
  19. thesurvivor190

    thesurvivor190 Newcomer, in training Topic Starter Posts: 84

    My motherboard is triple channel, so it wants it in trios.


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