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Dual Channel not working :(

By wolfram
Aug 3, 2006
  1. Hello!

    I've got today a new corsair memory stick, after I sold one to my uncle, who REALLY needed it.
    But, then I fired up my PC, started CPU-Z, and it tells me that I have only one RAM channel. I have two Corsair Value 512Mb sticks.
    Something that I didn't like about the new stick, is that is single sided, and my "old" one is double sided. Is that the main issue??

    My mobo is a Biostar tforce 6100-939, and I have one RAM on the green slot, (aka DIMMA1) and the other on the other green slot (aka DIMMB1). I tried to change them, and no luck.

    Any advice would be well-taken.

    Thanks!!
     
  2. iss

    iss TechSpot Chancellor Posts: 1,994

    are they both the same speed? I would check the sticker on the ram to make sure they are the same.
     
  3. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,345   +11

    I'd guess so.
     
  4. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

    in order to use dual channel - both memory sticks must be twins - in other words a perfect match.
     
  5. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,345   +11

    It's not a requirement on every mainboard. Mine works fine with different brands of memory, with different latencies.
     
  6. wolfram

    wolfram TechSpot Paladin Topic Starter Posts: 1,967   +9

    Yes, they are. Both are PC3200 Corsair Value. They're the same model number.

    It seems that the new single sided stick is not dual-channel compatible with the other double sided one. I don't know why Corsair have to change the sticks over time.

    Is there a GREAT difference between dual channel and single??
    I really haven't seen a difference.

    Thanks! :)
     
  7. iss

    iss TechSpot Chancellor Posts: 1,994

    You get greater memory bandwidth with dual channel.
     
  8. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

    may not be a requirement, but it avoids most headaches!
     
  9. wolfram

    wolfram TechSpot Paladin Topic Starter Posts: 1,967   +9

    Thanks everyone for your replies :)

    I guess I'm stuck with single channel. It doesn't bother me too much because I really haven't seen any difference.

    Thanks!
     
  10. wolfram

    wolfram TechSpot Paladin Topic Starter Posts: 1,967   +9

    Well, now my girlfriend thinks I should sell my my two 512MB sticks, and get 512MB X 2 Dual channel kit. Should I listen to her, and do that?

    Is it worth the hassle?
     
  11. mailpup

    mailpup TS Special Forces Posts: 6,979   +362

    You'll score big points with your girlfriend if you do as she suggests. :)
     
  12. Sharkfood

    Sharkfood TS Guru Posts: 1,019

    As it's an AMD system, you'll get a good improvement in memory bandwidth, but overall system performance wont be improved too measurably. AMD's really work awesome even with very little bandwidth.

    Some things will be noticeably improved though- like pagefile to memory operations, big transactions in photoshop or if you encode/decode dvd's to files, etc.etc. Games will probably only see a smallish improvement though at best.

    If it were an Intel system, I'd be swayed to make it a BIG DEAL.. but as it's an AMD, it's not nearly as important. Nice, but not a show-stopper.

    And as previously mentioned, keeping the girlfriend happy regardless is usually a bigger priority.. especially if you have a lumpy couch or her time of the month is coming up. :D
     
  13. wolfram

    wolfram TechSpot Paladin Topic Starter Posts: 1,967   +9

    Thanks for the helpful replies, especially yours Sharkfood :)

    I think I will avoid the hassle (it would be a REAL one), and because I use my PC only for gaming, and some internet, it should be fine. Fortunately, I don't have an Intel setup (I hate Prescotts), so single channel should be fine.

    I'm afraid I will have to kiss my girlfriend a lot to keep her happy :) :) :)
     
  14. mailpup

    mailpup TS Special Forces Posts: 6,979   +362

    You are such an optimist. :)
     
  15. wolfram

    wolfram TechSpot Paladin Topic Starter Posts: 1,967   +9

    Even though we're 15 year old, I am very optimist :)
     
  16. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

    no such thing as a "Dual channel kit motherboard" - either your motherboard supports dual or not (most do nowadays). Some RAM sellers sell twin packages of ram as a "Dual channel kit", but this is a misnomer. Any ram brand that your motherboard supports will work in dual channel mode if your motherboard is dual channel capable AND you set it up that way. Dual channel always requires twin sticks of memory of the same type, brand, and size. They must be inserted in a dual channel motherboard in the dual channel slots -usually indicated by the same color.

    Some motherboards also offer a TRI-mode. (3 sticks of same memory.) Some MSI boards do this. I know - I have one.
     
  17. wolfram

    wolfram TechSpot Paladin Topic Starter Posts: 1,967   +9

    Thanks for your reply Tedster. A while ago, I bought a 512MB Corsair Value Select. Then, almost a month ago or less, I bought another 512 Value Select, (same model and brand), and dual channel didn't work, because one stick (the older) is double sided, and the newer one is single sided.

    That means no dual channel for me :(

    Thanks for your help all of you! :)
     
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