Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0




  1. #1
    ManuteSwol is offline Junior Member
    Join Date
    Dec 2014
    Location
    USA
    Posts
    29

    Default After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    After getting some awful memory benchmarks, I referred to the manual which states:

    If you adopt DDR3 2100/1866/1800/1600 memory modules on thismotherboard, it is recommended to install them on DDR3_A2 andDDR3_B2 slots.

    Please install the memory module into the slots DDR3_A2 andDDR3_B2 for the first priority.


    This reads to me.. that if you use default speeds, You can use either A1+B1 or A2+B2, but for higher speeds (like me), I should be using A2+B2 -- I wasn't.

    So I SWITCHED. Before I got dual-channel.. now I don't. The manual states either combination should work.


    Is this a case of just needing to clear the CMOS?

  2. #2
    parsec's Avatar
    parsec is offline Senior Member
    Join Date
    Jun 2012
    Location
    Third stone from the sun
    Posts
    4,824

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    For the best compatibility, and higher speeds, yes you should use slots A2 and B2.

    But it sounds like you are just confused about which slots are which.

    After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0-dimm-jpg

    Can you see right above and to the right of the word CPU in the picture:

    DDR3_A1
    DDR3_A2
    DDR3_B1
    DDR3_B2

    Which is the order of the DIMM slots from top to bottom. The top two slots are channel A, the bottom two slots channel B.

    It sounds like you have both DIMMs in channel B, or possibly channel A.

  3. #3
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
    Dec 2008
    Location
    Tacoma, WA. [USA]
    Posts
    7,811

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    +1 ^^
    After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0-asrock-970-extreme3-r2-0-dimm-installation-png
    For maximum performance using dual channel mode you need to install your memory using option 1 or option 2 in the chart.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  4. #4
    ManuteSwol is offline Junior Member
    Join Date
    Dec 2014
    Location
    USA
    Posts
    29

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    Quote Originally Posted by parsec View Post
    For the best compatibility, and higher speeds, yes you should use slots A2 and B2.

    But it sounds like you are just confused about which slots are which.

    After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0-dimm-jpg

    Can you see right above and to the right of the word CPU in the picture:

    DDR3_A1
    DDR3_A2
    DDR3_B1
    DDR3_B2

    Which is the order of the DIMM slots from top to bottom. The top two slots are channel A, the bottom two slots channel B.

    It sounds like you have both DIMMs in channel B, or possibly channel A.



    Not confused at all.

    Ram modules installed in A1 and B1 - Dual channel works

    Ram modules installed in A2 and B2 - Dual channel does not work

  5. #5
    parsec's Avatar
    parsec is offline Senior Member
    Join Date
    Jun 2012
    Location
    Third stone from the sun
    Posts
    4,824

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    That does not make sense, something is wrong somewhere.

    What are you checking that tells you single channel instead of dual channel? I assume you are seeing the full capacity of both DIMMs being recognized?

    If you haven't cleared the CMOS yet, do so.

  6. #6
    ManuteSwol is offline Junior Member
    Join Date
    Dec 2014
    Location
    USA
    Posts
    29

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    Quote Originally Posted by parsec View Post
    That does not make sense, something is wrong somewhere.

    What are you checking that tells you single channel instead of dual channel? I assume you are seeing the full capacity of both DIMMs being recognized?

    If you haven't cleared the CMOS yet, do so.
    It doesn't make sense. That's why I'm posting here.

    I'm checking the first page of the BIOS. I am seeing the full capacity.

    Cleared CMOS. No change.

  7. #7
    ManuteSwol is offline Junior Member
    Join Date
    Dec 2014
    Location
    USA
    Posts
    29

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    Never found a solution to this.

    My bad memory benchmarks were normal for AMD.. I never realized the Intel memory controller was so superior.

  8. #8
    parsec's Avatar
    parsec is offline Senior Member
    Join Date
    Jun 2012
    Location
    Third stone from the sun
    Posts
    4,824

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    Depends on the processor, at least going by the specs. Some AMD processors have higher memory speed than similar Intel processors.

    Intel Core i7-4770K - CM8064601464206 / BX80646I74770K / BXC80646I74770K

    AMD FX-Series FX-6300 - FD6300WMW6KHK / FD6300WMHKBOX

  9. #9
    ManuteSwol is offline Junior Member
    Join Date
    Dec 2014
    Location
    USA
    Posts
    29

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    Look at benchmarks, not rated speeds.

    Anyway -- I'm not sure that helps in any case.

    I guess if I want to goto 4 sticks of RAM at any point, it looks like this mobo is going into the trash... if it doesn't die first.

  10. #10
    Join Date
    May 2011
    Location
    Rudehen, Tehran, Iran
    Posts
    302

    Default Re: After switching slots, RAM is no longer DUAL Channel - 970 Extreme3 R2.0

    Quote Originally Posted by ManuteSwol View Post
    It doesn't make sense. That's why I'm posting here.

    I'm checking the first page of the BIOS. I am seeing the full capacity.

    Cleared CMOS. No change.
    What about bios version? Using the last?
    Last edited by bahram_alinezhad; 04-24-2015 at 02:49 AM.

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 4 users browsing this thread. (0 members and 4 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •