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Thread: Z68 Extreme4; Radeon HD 6870 card not recognized




  1. #1
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    Default Z68 Extreme4; Radeon HD 6870 card not recognized

    Hi everyone.

    I've recently upgraded my machine - all components except the video card (a Diamond Radeon HD 6870) - but have been unable to get that card working with the new Z68 Extreme4 motherboard. Here's what I've tried;

    - using different PCIe slots
    - upgrading bios to 1.70
    - in the bios, setting the preferred graphics device to PCIe
    - re-confirming that the video card works in the old machine

    The card itself is receiving power, since the fan is working. The double 6-pin molex adapters are set correctly, and driven by a Corsair HX850, so there should be ample power available.

    The symptoms include no video output from DVI or HDMI ports, and no recognition of the card by the Win7/64 OS (under Display Adapters in the Device Manager, it only shows "Intel(R) HD Graphics Family").

    FYI, I've seen mention in a couple of threads here about disabling the IGP, but haven't been able to figure out how to do that. Perhaps the 1.60 & 1.70 bios removed that option?

    Thanks in advance for any advice.

  2. #2
    profJim's Avatar
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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    Have you tried using another video card?
    Does you monitor/cable setup work when connected to the integrated graphics ports?
    Try using a different set of psu PCI-e cables and different psu connections.
    You might need to test with another power supply.
    Last edited by profJim; 10-24-2011 at 11:25 AM.
    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
    .


  3. #3
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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    Unfortunately I don't have another graphics card available to test with, but I'll see if I can borrow one this week. Good idea, thanks.

    Yes, the IGP HDMI output "works" well enough for desktop apps and movies, though gaming performance sucks and DTS bitstreaming is broken so I'm eager to get this fixed.

  4. #4
    profJim's Avatar
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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    The IGP test is done to confirm that your monitor and cable work.
    Even if your psu is new, it might be defective.
    The spinning video card fans don't guarantee that your video card is receiving sufficient power from the psu pci-e connections.
    That is why I suggested testing with the other psu pci-e connections/cables and possibly with another power supply.
    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 Extreme4; Radeon HD 6870 card not recognized

    I've done some more testing after borrowing an old PCIe graphics card (Geforce 7300 GT) and reusing my old PSU (450W).

    The old video card works on the new motherboard, but doesn't require any external power. So at least I know it's not a slot problem.

    My old PSU can't replace the new one since it doesn't have the smaller ATX cable. But I tried powering the card while in the new machine, using the 2 molex 6 pin cables from the old PSU, while (hopefully) commonly grounded. Alas, the 6870 still didn't work in the new machine. I then double-checked that the 6870 still worked in the old machine - it did - and also noted that it didn't work at all if one or both of its power cables was unplugged - just to check that it didn't have some kind of low power fallback mode that could be used to tweak the BIOS or whatever.

    Hmm, so what does that mean? If it's not the motherboard and the card, it has to be the PSU right?

  6. #6
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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    Your power supply has six pci-e cables, two are hardwired and four cables have modular connections.
    It's possible that there is a problem with one of these pci-e cables or connectors.
    If you are using the modular pci-e cables, the problem could be with the cable or the connector at the back of the power supply.
    You should test by changing one pci-e cable at a time to see if you can find out if there is a problem with one or both cables.

    You might need to check that each of the wires are OK in each connector. Your safest way to test is if you have a friend who knows how test the voltage reading for all eight wires. This would require 7 different tests for each connector while your power supply is on.

    Z68 Extreme4; Radeon HD 6870 card not recognized-pci-connector-wiring-png
    Last edited by profJim; 10-27-2011 at 06:33 PM.
    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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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    Thanks for your all your help. I'll try to dig out my voltmeter, from wherever it is I might have stashed it decades ago 8-)

    But as this no longer seems to be an ASRock issue, I'll take it the Corsair forums. Thanks again.

  8. #8
    profJim's Avatar
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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    Good luck, let us know how you make out.
    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
    .


  9. #9
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    Ottawa, Canada
    Posts
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    Default Re: Z68 Extreme4; Radeon HD 6870 card not recognized

    So I finally found the voltmeter and tested the four cables I'd used (though I only tested 6 of the 8 pins since that's all my card uses) and they all test out fine; 12.00v between all GND and +, and 0.00v between all GND. AFAICT then, the problem must be with either the card (which worked on another MB), or the MB (which worked with another card). Sigh.

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