Won't detect full RAM

Discussion in 'CPU, Motherboards and Memory' started by tribesman2004, May 27, 2008.

  1. tribesman2004

    tribesman2004 Geek Trainee

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    I have a seemingly unique problem with my RAM. I have 2 sticks of Corsair XMS, both 1 gig. My Windows XP Pro install only detected 1 gig for a long time. I was really busy when I built the PC, so i had to put off the problem for a while (Hey, it ran, right?) and soon I completely forgot about it.

    Well, I finally got around to diving into it today. I know both sticks are good. I know all 4 DIMM slots work. Bios detects 2 gigs, so does CPU-Z. However, Windows detects 1 gig. I rearranged the sticks in several ways, and now Windows sees 1.5, while both BIOS and CPU-Z still see 2.

    I would much like to have that last .5 gigs of Ram. I know the limitations of 32 bit operating systems, but I'm nowhere near the ~3 gig limit. Anyone have any idea WTF my windows is doing with that last .5 gigs?
     
  2. Ghostman 1

    Ghostman 1 Mega Geek

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    What does it say under Video adapter in bio's ? Allot of times windows will take ram for the Video card, Thats for onboard video cards.. I have a PC with 1 gig of ram, but in windows it only say 768 mb, But if you go into the Bios. You can see the whole 1 gig,But also should see 256 allocated to Video adapter..
     
  3. tribesman2004

    tribesman2004 Geek Trainee

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    My video cards not onboard. Actually, I cant even find the Video adaptor in my BIOS, but its got 1 gig of Ram on it.

    Ran Memtest 86, no problems, but windows still only sees 1.5 gigs of RAM. While this is an improvement over the 1 gig it originally saw... I want my 2 gigs for crying out loud! :(
     
  4. Big B

    Big B HWF Godfather

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    What are your specs?
     
  5. tribesman2004

    tribesman2004 Geek Trainee

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    Sorry for the delay, work sucks. Heres my DXdiag.

    It says 1536 MB. I *know* it has 2 gigs, and Bios knows it has 2 gigs. CPU-Z knows it has 2 gigs. But Windows refuses to acknowladge it. :(

    It used to only show one, but I rearragned the sticks around. Out of 12 possible configurations, the highest it will show is 1.5 gigs. I know both sticks are good, and all 4 DIMM slots are good (Because when I put them in alone, no matter what DIMM slot, windows detects 1 gig)
     

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