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Thread: Cannot Detect Correct Amount Of Ram In Vista




  1. #1
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    Default Cannot Detect Correct Amount Of Ram In Vista

    I added 2 more gb of some g.Skill (F2-6400PHU2-2GBHZ) to my p5wdg2-ws mobo bringing it to 4gb. I am running Vista Ultimate x32.
    Now, in the BIOS I see that it is detecting all 4gb. When I boot into vista and run a dxdiag, it only kicks 2gb back to me. CPU-Z is reporting 4gb though, and is showing the RAM in all the slots.

    I read in a group on google something referencing x32 vs x64 when it came to RAM detection. It was unclear, but sounded along the lines of Vista x32 can only detect up to 4gb, and x64 can detect higher. Would this possibly be my problem? Do I need to install x64?

  2. #2
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    Default Re: Cannot Detect Correct Amount Of Ram In Vista

    32bit os will only detect ~3.25GB

    It is your problem

    Yes 64bit will fix your issue
    E8600@ 4.25GHz~Thermalright Ultra 120 eXtreme~Foxconn Blackops~4GB Kingston HyperX DDR3 1625 at 1700MHz (8-8-8-24-2N) 1.916v~Asus 9800GTX~18x Pioneer 212 DL SATA DVD-RW~320GB WD SATAII~Antec True Power Trio 650W~Thermaltake Soprano~Vista Ultimate x64 SP2/Win7 RC1

  3. #3
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    Default Re: Cannot Detect Correct Amount Of Ram In Vista

    actually, Vista X32 will only show 2.9GB at the most and probably less.
    GIgabyte GA-990FXA-UD3
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  4. #4
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    Default Re: Cannot Detect Correct Amount Of Ram In Vista

    OK, I'll go with you on that one, I was basing my reply on XP 32bit experience.
    E8600@ 4.25GHz~Thermalright Ultra 120 eXtreme~Foxconn Blackops~4GB Kingston HyperX DDR3 1625 at 1700MHz (8-8-8-24-2N) 1.916v~Asus 9800GTX~18x Pioneer 212 DL SATA DVD-RW~320GB WD SATAII~Antec True Power Trio 650W~Thermaltake Soprano~Vista Ultimate x64 SP2/Win7 RC1

  5. #5
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    Default Re: Cannot Detect Correct Amount Of Ram In Vista

    oh joy.....and of course there is no easy way to just upgrade from x32 to x64

  6. #6
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    Default Re: Cannot Detect Correct Amount Of Ram In Vista

    Quote Originally Posted by SmokeyMcPot View Post
    oh joy.....and of course there is no easy way to just upgrade from x32 to x64
    Sure there is. You should be able to get a 64-bit disk from M$ for the cost of shipping:

    http://www.microsoft.com/windowsvist...a/default.mspx

    I have Vista Premium 32-Bit Upgrade version and I ordered the 64-bit disk and other than having to do a fresh clean install, it was painless. You cannot upgrade from 32-bit to 64-bit directly, but if you have a retail version of Vista, then it is simple. Even if you have the upgrade version like me, it isn't tha hard. Either way, I STRONGLY suggest going to 64-Bit Vista since in my opinion, it runs far better and smoother than any 32-bit OS. You will not be disappointed and it is thoroughly worth the effort.
    GIgabyte GA-990FXA-UD3
    AMD FX8120 @ 4GHz
    Patriot 1866MHz EL series 2X4GB DDR3
    Powercolour HD 6970 2GB w/XFX 8800GT 512MB Hybrid PhysX
    Creative X-FI titanium HD w/Technics class A 300W amp and tower speakers
    PC P&C 500W PSU
    2TB Seagate
    Coolermaster 690II w/Corsair H100 tucked under the hood

  7. #7
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    Default Re: Cannot Detect Correct Amount Of Ram In Vista

    Okie dokie! I will take your word and make the move. Now I just gotta pack all my bytes and bits into the good ol' hard drive suitcase again...and find the 10,000 install .exe's ill need again. Is there a vista DNA tool out there that is free?
    Also, on slickdeals.net they had a free version of Vista Business edition for signing up, so I signed up and got my key. Is there any significant difference between business and ultimate? I know you get all the crappy little add-on programs you can dload in Ultimate, but that was the only thing I noticed. Otherwise, I am going to have to go buy a 64bit version of windows. (another $200!!! ugh!)

    Oh and btw- Vista x32 will only report a max of 2048mb back when 4096mb is installed in all 4 slots. Seriously though....who is only gonna have "2.9gb" of ram...are there 1.45gb DIMM's out now and I just missed them..hmm...off to newegg (jk)

    Oh yea, thx for all the help!
    Last edited by SmokeyMcPot; 11-06-2007 at 04:39 AM.

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