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Thread: Z68 Extreme7 Gen3 will not detect 3way sli! :(




  1. #1
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    Default Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Greetings.

    i7 3.5k
    ext7 gen3 mobo
    evga 580gtx hydro copper2

    I did it all I check all the PSU cables to the cards I switched them around, I took out all 3 cards and installed them one at a time in all 3 SLI PciE slots, 1,4 and 6.

    Mobo will detected 2 gpu cards in any slot, the third one just does not exist! I uninstalled and reinstalled drivers. I do not know what else I can do.

    Bumpmed out, took 3 weeks for all the parts to come in and now cant try out 3way SLI.

  2. #2
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Updating:
    ( Was upset last night and was not thinking when I was typing, these are the tests I ran.)

    Greetings,

    Reason I am very sure it is a mobo issues is:

    I checked the power cables to each GPU card and switched them around and they all worked fine, I am using a Corsair 1200w PSU,

    My first test was loading up windows, making sure nothing was installed in any PCI slot, other then the GPUs.

    1) All 3 cards was tested one at a time in slots 1, 4, and 6. Windows and system operated fine.

    2) I marked cards as A, B, C, and tested them in various 2 way SLI configurations. Slots 1-4, 4-6, 1-6, etc.. every thing worked fine, 2 way SLI was detected and operated fine.

    3) Here is the problem:
    Once I have a 3 SLI set up, Device manager does not detected the 3rd card. While all 3 cards was hooked up and windows loaded I tested each card by disconnecting the monitor,
    hooking it up to a GPU card 1 then 4 and then 6, the monitor was working in slot 1 and slot 6. Slot 4 there was a black screen. Which makes me believe in 3way SLI slot 4 not detected on the mobo.

    4) Now I though maybe slot 4 is not getting power when all 3 cards are in use or bugged, so I let the OS shut down and with out taking any cards out, I took out the power supply from slot 1, (did this test to slot 6 also)
    and slot 4 was working fine.

    All 3 cards have the EVGA logo light up when there are hooked up and are getting power, slot 4 is just LAZY!! :P

  3. #3
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Update again.

    1 GPU card in slot 4 and Device manager does not detect it, but monitor works and runs like its in safe mode.

    Went to Nvidia website to download drivers and let Nvidia to check my system to see what drivers I need, I get a message No GPU is installed.

    If slot 4 is broken lets just say, why would my system and display boot up?


    Please any thoughts?

  4. #4
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Double check your motherboard user manual, there might be a bios setting or a set of jumper pins that need to be connected for 3-way SLI mode.
    Your manual should specify how the PCI-e lanes are allocated with 3 cards in SLI.
    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
    .


  5. #5
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Thank you for taking your time to respond,

    I read the manuals and installed the GPU in slots 1 4 and 6, for 3way sli, the past 3 days I installed, uninstall drivers, switch GPU around check to see if they all working, Cleared CMOS.

    Problem is once you hook up the 3rd card, slot 4 does not get detectded, all you see is Intel(R) HD Graphics Family and the 2 GTX 580s in Device manager.

    Manual says nothing about set in BIOS other then have PCI E enabled.

  6. #6
    profJim's Avatar
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    I have to ask, sometimes we overlook simple things.
    Did you connect a molex cable to the SLI / XFIRE power connector just above the PCI-E_1 slot?
    Other than possibly overlooking this cable, it looks like you've done everything right.
    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
    .


  7. #7
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    Angry Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Update:

    Yes Molex is connected to a 4pin power connector and SLI bridge connected, I tried 3sli and 2 sli.

    So I took the cooling system and sound card off once again and did tests:

    Individual Test:
    Tested all 3 cards in slot 1 worked:
    Tested all 3 cards in slot 2 worked:
    Tested all 3 cards in slot 4 worked:
    Tested all 3 cards in slot 6 worked:

    2 way SLI test:
    Tested slot 1 and 4, 2way SLI it worked:
    Tested slot 1 and 6, 2 way SLI it worked:
    Tested slot 4 and 6, 2way SLI, slot 6 worked slot 4 black Screen and not detected it Device Manager.

    3Wa SLI test:
    Tested 3 way SLI 1,4 and 6 slots, slot 4 black Screen and not detected in Device Manager.
    Did I reboot took out slot 6, slot 4 detected and 2 way SLI up.

    Now this is how I know that for some reason slot 6 is acting up my 3way sli.
    Installed GPU in slot 1, slot 4 and slot 5, not 6.

    Booted up and all 3 cards were detected.

    Was able to 2way sli and have 3 card as PshyX card, but no 3 way SLI

    Emailed Asrock and still waiting for response, I hope I do not need a new mobo.

  8. #8
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    So would you say its a defected board?

    Any advice?

  9. #9
    profJim's Avatar
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    Default Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    From the ASRock website, Z68 Extreme7 Gen3 specifications:
    ....
    tripple at PCIE 2.0 x16 (PCIE1) / PCIE 2.0 x8 (PCIE4) / PCIE 2.0 x8 (PCIE6) mode; PCIE5: PCIE 2.0 x4 mode)
    The problem is when you are using slots 4 and 6 at the same time.
    It might be a motherboard design issue or the problem might be with your board.
    ASRock tech support should be able to confirm if the Extreme7 board can run 3-way SLI using the recommended 1, 4 and 6 slots.

    Have you searched the web to see if anyone has been able to run a 3-way SLI setup with your board?
    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
    .


  10. #10
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    Angry Re: Z68 Extreme7 Gen3 will not detect 3way sli! :(

    Update:

    After reading the boards was turning out to be a defected mother board, I RMA and received my new extreme7 gen3 yesterday.

    I started to install the cards one by one to make sure everything is ok, same dam issue!!!

    Slot 1, 4 worked , install a card on slot 6 slot 4 goes dead, no display, not detected in device manager.

    Installed on slot 1, 4 and 5 all cards detected in device manager and in Nvidia control panel.

    Installed Asus Xonar sound card in slot 3, All cards detected.

    Take out GPU from slot 5 install it on slot 6.

    Slot 4 RIP!!!

    NO proper 3 way SLI support!

    Replaced GPU card, Mother Board and 30 plus hours of testing

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