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Thread: Cannot add memory - EP45-DS4




  1. #1
    Join Date
    Oct 2008
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    Default Cannot add memory - EP45-DS4

    Hello

    I want to have dual boot so I wantd to increase my RAM to 4G, I assume this mobo can do that. The RAM I am using is Corsair TWIN2X2048-8500C5D.

    Since it did not work I did a total swap for my old to the new and as long as there is only 2G it works fine. If I try 4G it does not even get to XP home loading screen, BIOS says RAM 640, ext. RAM 1763 or something, if I try 3G BIOS says its RAM 640, ext. RAM 1024, and it boots upto user login and crashes when I login, if its 2G, in BIOS it is RAM 640 ext. RAM 2046.

    Now I don't know if the problem is if this mobo supports this RAM module upto 4G, if it does, does XP home not like you changing RAM amounts as it goes above its limit, ie., if you want to put it in and do a fresh XP install?

    Help

    krishan
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

  2. #2

    Default Re: Cannot add memory - EP45-DS4

    I know XP PRO can see only 3.5GB. Not sure if it's the same for XP Home or not. Try installing Vista and.. what version of your BIOS do you have?
    Nothing is impossible... Just mathematically improbable..

    "The best defense against computer viruses might not even be antivirus software, but a crafty combination of education and common sense."

    Intel Pentium e5200 @ 3.8HZ (380 X 10)
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  3. #3
    Join Date
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    Default Re: Cannot add memory - EP45-DS4

    This cannot be just a XP issue, BIOS does not show correctly 3G or 4G, only 2G, so first have know why the mobo cannot see all, is there a setting in BIOS if you add memory?
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

  4. #4

    Default Re: Cannot add memory - EP45-DS4

    What version of your BIOS do you have?
    Nothing is impossible... Just mathematically improbable..

    "The best defense against computer viruses might not even be antivirus software, but a crafty combination of education and common sense."

    Intel Pentium e5200 @ 3.8HZ (380 X 10)
    Giga-byte GA-EP35-DS3L
    Mushkin 4GB DDR2 800 @ 760MHZ 4-4-3-10 @ +0.3v
    SAPPHIRE 100245L Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16
    Seagate 160GB @ 7200rpm
    SB Audigy2
    Corsair 520HX
    Super Antec Lanboy
    Windows 7 Ultimate 64bit RTM
    Acer AL2216Wbd 22"

  5. #5
    Join Date
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    Default Re: Cannot add memory - EP45-DS4

    Found the fault!!!
    I don't like it!!!

    My orginal RAM, CORSAIR TWIN..... Ver. 4.1
    My new RAM CORSAIR TWIN..... Ver. 6.1

    Not compatable, at least in my PC, will be posting to corsair why they make devices that are not compatable when they use the same manu. code, How is anyone supposed to know which versions they will get!!!

    <!-- / message -->
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

  6. #6
    Join Date
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    85

    Default Re: Cannot add memory - EP45-DS4

    Is CM2X1024-8500C5D (written on stick) the TWIN2X2048-8500C5D? or have I got another model
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

  7. #7
    Join Date
    Oct 2008
    Posts
    85

    Default Re: Cannot add memory - EP45-DS4

    Is there an option in BIOS for MEMORY REMAPPING?? if you go above 2GB?
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

  8. #8
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Cannot add memory - EP45-DS4

    NO there is not, and XP Home does support 4GB, but that is total with PAE Enabled >>>
    Physical Address Extension - PAE Memory and Windows - Microsoft

    RAM, Virtual Memory, Pagefile and all that stuff - Microsoft

    Crucial FAQ - Answer


    Two different revisions of ram will most likely not be very compatible at all as the Ram Guy told you at Corsair. You can RMA your old set for a new set just setup a RMA is all you need to do. And try to be a little nicer over there and he likely would have already suggested that to you (Just trying to help )

    You would have 3-3.25 or so if you did not have such a large Memory GFX Card

  9. #9
    Join Date
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    Default Re: Cannot add memory - EP45-DS4

    Quote Originally Posted by Lsdmeasap View Post
    NO there is not, and XP Home does support 4GB, but that is total with PAE Enabled >>>
    Physical Address Extension - PAE Memory and Windows - Microsoft

    RAM, Virtual Memory, Pagefile and all that stuff - Microsoft

    Crucial FAQ - Answer


    Two different revisions of ram will most likely not be very compatible at all as the Ram Guy told you at Corsair. You can RMA your old set for a new set just setup a RMA is all you need to do. And try to be a little nicer over there and he likely would have already suggested that to you (Just trying to help )



    You would have 3-3.25 or so if you did not have such a large Memory GFX Card
    I spoke to the seller, there tech support suggested increasing voltage to ram from 2.1v to 2.2v, they said CM2X1024-8500C5D ver.4.1., 5.1, and 6.1 are compatable with the extra voltage, I do not want to do this, what do you think?

    Is it better to go with the 2X 2G version of thr dominator series but then my aim here is dual boot XP home and vista 64-bit, will it work?
    I here that if you put 4G ram the MCH will have to turn the ram down to 800MHz not the 1066MHz, becuase the MCH cannot keep up, is this true
    krishan

    PS. SEE PICTURE, SAME MEMORY, JUST THE VER. DIFFERENCE
    Attached Images Attached Images Cannot add memory - EP45-DS4-corsair-jpg 
    Last edited by krishcanag; 12-10-2008 at 10:32 PM.
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

  10. #10
    Join Date
    Oct 2008
    Posts
    85

    Default Re: Cannot add memory - EP45-DS4

    I reordered and got likely another set of 2X 1GB dominator and they are version 4.1 like my orginal, all up and running and also overclocked CPU as before. XP shows 3.25GB.

    Moral of story, if you want to upgrade from 2GB to 4GB, go buy a totally new set or hope you get another 2GB set that is the same ver. as the one you have else it may or may not work.
    krishan

    EP45-DS4
    E8500
    4G Corsair CM2X1024-8500C5D 1066MHz 2.1V
    Samsung spinpoint F1 750GB
    XFX 898MB 260GTX
    Corsair HX620

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