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Memory running in dual channel?

By ahnadahodo
Jan 29, 2005
  1. Hello,:giddy:

    I have a question about dual channel memory.

    How can I tell if my memory is running in dual channel mode?

    I know the motherboard will determine whether or not it runs in dual channel by the configuration of the sticks on the board. But, is there any way of knowing for sure? I've read somewhere about checking for 64 bit versus 128 bit? But I'm not sure about where to check and what to look for.

    Currently I'm running 2 sticks of PC2700 512mb Kingston. (I know I should be running PC3200, I plan on upgrading in the future.)

    I have 1 stick in slot 1 on Channel "A" and 1 stick in slot 3 on Channel "B". I thought with 1GB of memory I would be able to notice a difference between Single Channel (both sticks on Channel "A" or Channel "B") and Dual Channel (1 stick on each channel), but there doesn't seem to be a noticable difference.

    Am I doing something wrong? or just not running the programs or games that I'd notice the difference with. (I don't really play games anyway, just basic PC usage)

    Here are my system specs.:

    Intel P4 3.0C GHz w/800MHz FSB
    MSI 865G Neo2-PLS
    Kingston ValueRam 1GB (2 x 512MB) PC2700
    Hard Disk:
    Western Digital 160GB, 7200RPM IDE

    Please let me know if you need any more information.

    Thanks in advance for your replies,
  2. bushwhacker

    bushwhacker TechSpot Chancellor Posts: 766

    hello, ahnadahodo.

    I think Dual Channel (a.k.a. DDR2) will only run on latest 9XX chipset. I think I875P works too. It works in latest AMD Chipset nForce3. Dual Channel has memory on both sides.
  3. Didou

    Didou Bowtie extraordinair! Posts: 4,182

    Quite wrong bushwhacker.

    ahnadahodo just install one memory module in the green socket closest to the CPU & another in the purple socket closest to the CPU. You need 2 or 4 modules for Dual Channel to work. 1 or 3 modules & you're back in single channel.
  4. masterblaster

    masterblaster TS Rookie

    Dual Channel question



    Before I go deep, let me say ..one thing..that I'nt a master or whiz in computers..but given the advice and proper recommendations..yeah..I can get through the troubles I have...

    Well..my system configuration is

    Computer Type ACPI Uniprocessor PC
    Operating System Microsoft Windows XP Professional
    OS Service Pack SP 2
    CPU Type AMD Athlon 64, 2200 MHz (11 x 200) 3500+
    Motherboard Name MSI K8N Neo2 Platinum (MS-7025) (5 PCI, 1 AGP,
    4 DDR DIMM, Audio, Dual Gigabit LAN, IEEE-1394)
    Motherboard Chipset nVIDIA nForce3 Ultra, AMD Hammer
    BIOS Type Award (09/07/05)
    Display RADEON 9800 (256 MB)
    RAM 1024 MB RAM

    The scenario...

    I have two 512 MB GoodMem (2x 512 - PC3200 - 400Mhz) from the same manufacturer.I wanted to obtain Dual Channel since my motherboard said it supports Dual channel.Before the dual channel setting. I had setted up the memory in 1st slot and 3rd slot.My bios read the speed as 400 Mhz with 1GB ram.Even my windows system properties also reported the same thing i.e 1GB ram installed.To get the dual channel , I installed the memory modules in 1st slot and the 2 slot.When I looked in bios ,it showed that it is Dual Channel 128Bit.But when it shows the ram,the size is 512 MB ram installed.Even in the system properties of windows also shows that it is 512 MB ram.

    The question...

    1)Why is that 2x512 shows as 512 MB RAM both in bios and system properties in Windows?

    2)Is there any performance degradation?

    3)Will it help me achieve in dual channel mode ,to get 1 Gb ram availablity when running apps like Adobe CS2, Far Cry etc

    4) Where have I gone wrong?

    Any one ..having any clue...can give a words of advice

    Thanks ...a lot ...
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