Crossfire and disappearing RAM


  1. burndonesinkcha
    Posts : 3
    Windows 7 Home Premium 32bit
       New #1

    Crossfire and disappearing RAM


    Running HP 32bit on an MSI 790fx-gd70, AMD 965, and just added an identical video card (MSI 5770 Hawk). Have 2x2 GB RAM installed. Prior to adding the second card, I had 3326MB of system RAM, and a WEI of 7.5. Second card reduced system RAM to 2816 and 5.5 WEI. In order to have stability in gaming, I had to increase the page file to 5.5GB, and the hard drive never takes a break. My plan was to add RAM to see if that helped. I'm now at 4x2 GB, and still at 2816MB of system RAM. My next step is to install a 64bit OS to at least give my hard drive a break, since all of the installed RAM will be recognized. Does anyone know what causes this? Will it resolve my lower WEI for RAM?
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  3. Ivan the SoSo
    Posts : 2,562
    windows 10 pro 64 bit
       New #2

    The ram on the video cards is counted first then the system ram...so the system ram went down with the second card....you are long overdue a 64 bit OS
    Last edited by Ivan the SoSo; 31 Dec 2010 at 15:56. Reason: not the middle ages....
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  4. DustSailor
    Posts : 2,588
    Microsoft Windows 8.1 Pro 64-bit
       New #3

    You doing crossfire or just two graphics cards (if you are, why?) If you're doing crossfire, try downloading and enabling the software for crossfire.
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  6. Solarstarshines
    Posts : 7,466
    Windows 10 Home Premium 64bit sp1
       New #4

    you are wondering why your card takes so much ram you are using 4 gigs all together correct if so and you crossfired two hd5770's in that case the cards are taking 1gig plus a piece shared ram

    the more ram you add the more the pci devices will use if you look in the wei you will see how much but also as well you know 64 bit reconizes more ram and 32 bit is stuck at 4 gigs 3.5 usable so it would be a good idea to move on to x64 and add another few gigs just for the sake of having enough gump for what you are trying to do
    Attached Thumbnails Attached Thumbnails Crossfire and disappearing RAM-shared-mem.png  
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  7. burndonesinkcha
    Posts : 3
    Windows 7 Home Premium 32bit
    Thread Starter
       New #5

    Hungry Hungry GPUs. They are in CrossfireX, and it is enabled in CCC. Next order of business is 64bit. I got Win 7 right away because a new build was long overdue (skipped Vista). Heard the 64bit hardware drivers were buggy. Thanks to everyone for the quick replies!!
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  8. DustSailor
    Posts : 2,588
    Microsoft Windows 8.1 Pro 64-bit
       New #6

    burndonesinkcha said:
    Hungry Hungry GPUs. They are in CrossfireX, and it is enabled in CCC. Next order of business is 64bit. I got Win 7 right away because a new build was long overdue (skipped Vista). Heard the 64bit hardware drivers were buggy. Thanks to everyone for the quick replies!!
    no, this can apply to a brand new os, but WIN7 has been up and running for a while now
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