Results 1 to 7 of 7
  1. #1
    ROG Member Array SplitSecond PC Specs
    SplitSecond PC Specs
    Laptop (Model)Asus G73JH, Asus UX301, Asus n73SV, Asus Transformer
    MotherboardRampage Extreme IV
    Graphics Card #1Asus DirectCU II 7970 TOP
    Graphics Card #2Asus DirectCU II 7970 TOP

    Join Date
    Jul 2015
    Reputation
    10
    Posts
    5

    Crossfire for over 2 years. Suddenly one Direct CUII 7970 TOP is not recognized...

    Hey everyone,

    So I have been running crossfire for over 2 years and now suddenly one card is not recognized anymore.
    I have tried switching PCIe lanes, running only the "faulty" card, updating drivers, looking in MSI afterburner, catalyst control center,
    but nowhere does it show my second card anymore.

    I never had any trouble with the card, it also never has been OC. Is it dead...?

    Please help!
    Last edited by SplitSecond; 07-27-2015 at 03:05 PM.

  2. #2
    ROG Guru: Orange Belt Array
    Join Date
    Dec 2011
    Reputation
    24
    Posts
    293

    I'm assuming the first thing you did was to simply swap the two cards around - #1 card in #2's slot and vice versa? If that worked OK and the problem continued to exist then the cards would not appear to be bad - possibility would then be the motherboard PCI slot itself.
    Lian-Li PC-A77F Full Tower case
    PC Power & Cooling Turbo-Cool 1200 ATX12V & EPS12V PSU
    ASUS Rampage IV Extreme LGA 2011 X79
    Intel Core i7-3960X 3.31 LGA 2011 CPU
    Intel RTS2011LC Liquid Cooling Solution
    Kingston KHX24C11T3K4/32X (quad 32Gb memory kit) 2 each
    ASUS Radeon HD7970 DirectCUII 3Gb GDDR5 PCIe 3.0 x16 Video Card (two in CrossfireX Mode)
    Western Digital Cavier Black 2Tb SATA III 6.0GB/S
    OCZ Technologies Vertex 4 SATAIII 6Gb/s 512Gb SSD

  3. #3
    ROG Member Array SplitSecond PC Specs
    SplitSecond PC Specs
    Laptop (Model)Asus G73JH, Asus UX301, Asus n73SV, Asus Transformer
    MotherboardRampage Extreme IV
    Graphics Card #1Asus DirectCU II 7970 TOP
    Graphics Card #2Asus DirectCU II 7970 TOP

    Join Date
    Jul 2015
    Reputation
    10
    Posts
    5

    I have tried swapping slots, that didn't work. In addition, I tried running the PC with only one graphics card at a time, with one it ran without any difficulties, with the other it didn't show anything at all. That's why I guess the card might be defect

    Asus RMA in The Netherlands also doesn't recognize my serial number, which is not only strange but also very inconvenient since I really want to have a replacement for this card (because of crossfire). As a student buying two new cards is rather unrealistic, I even saved up for these since they were cherry picked :/ Besides specs this one also fits my custom case exactly as I want.

    Hope Asus ROG or someone else has a solution for me that I can try!

  4. #4
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
    Join Date
    Mar 2015
    Reputation
    152
    Posts
    2,719

    Maybe your CrossFire bridge cable is damaged?

  5. #5
    ROG Member Array SplitSecond PC Specs
    SplitSecond PC Specs
    Laptop (Model)Asus G73JH, Asus UX301, Asus n73SV, Asus Transformer
    MotherboardRampage Extreme IV
    Graphics Card #1Asus DirectCU II 7970 TOP
    Graphics Card #2Asus DirectCU II 7970 TOP

    Join Date
    Jul 2015
    Reputation
    10
    Posts
    5

    I replaced it with another one, but didn't help. Thanks for the suggestion tho! This also wouldn't explain why the test with the single card wouldn't show something on screen :/

    Please help me with suggestions. I can't miss my crossfire!

  6. #6
    ROG Guru: Black Belt Array Korth PC Specs
    Korth PC Specs
    MotherboardASUS X99 R5E (BIOS2101/1902)
    ProcessorHaswell-EP E5-1680-3 SR20H/R2 (4.4GHz)
    Memory (part number)Vengeance LPX 4x8GB SS DDR4-3000 (CMK32GX4M4C3000C15)
    Graphics Card #1NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Graphics Card #2NVIDIA Quadro GP100GL/16GB, 16xPCIe3, NVLink1 (SLI-HB)
    Sound CardJDS Labs O2+ODAC (RevB), USB2 UAC1
    MonitorASUS PG278Q
    Storage #1Samsung 850 PRO 512GB SSDs, 4xSATA3 RAID0
    Storage #2Comay BladeDrive E28 3200GB SSD, 8xPCIe2
    CPU CoolerRaijintek NEMESIS/TISIS, AS5, 2xNH-A14
    CaseObsidian 750D (original), 6xNH-A14
    Power SupplyZalman/FSP ZM1250 Platinum
    Headset Pilot P51 PTT *modded*
    OS Arch, Gentoo, Win7x64, Win10x64
    Network RouterActiontec T3200M VDSL2 Gateway
    Accessory #1 TP-Link AC1900 Archer T9E, 1xPCIe
    Accessory #2 ASUS/Infineon SLB9635 TPM (TT1.2/FW3.19)
    Accessory #3 ASUS OC Panel I (FW0501)
    Korth's Avatar
    Join Date
    Mar 2015
    Reputation
    152
    Posts
    2,719

    So one card works in either slot, the other card doesn't work in either slot?

    Most-to-least likely causes of the fault:
    - your firmware/configuration (maybe try updating to latest-greatest BIOS version, clear CMOS, replace mobo battery, etc?)
    - your power supply is starting to die (no PSU lasts forever, easy to prove/disprove by testing with a robust new PSU)
    - a PCIe connection (you might be able to blow out dust/etc from the mobo slot or use a contact cleaner on the card)
    - a GPU card (or maybe just the cooler or some other component on the card)
    - your motherboard (electrical components do eventually fail, especially if frequently overclocked or overheated)

    I'm thinking the mobo battery is the culprit (a CR2032 coin cell typically lasts about 18-30 months), since you describe your system as being about 2 years old and working fine until the mysterious CF failure.
    BIOS settings and SSD data (including your OS system files) can be also corrupted by sudden power loss events.
    Catalyst drivers are notorious for stubbornly insisting on ninja self-updating ... and sometimes newer is not always better.

    Doesn't hurt to change the battery (if it's not dying now then it probably will be soon, and 3 for $1 lol).
    Manually check all relevant BIOS settings.
    If you ran AI Suite or some other autoconfiguring software to get stable system settings before then run the exact same version again.
    Maybe try a rollback to a previous driver configuration, Windows Restore Point, etc.
    Sometimes PCIe cards (and DIMMs) need to be reseated a few times to work correctly, not so much intermittent contact as just weird and quirky.
    Visually inspect your cards and mobo for signs of component damage (broken solder points, cracked PCB traces, leaky electrolytics, burnt resistors, etc) and check all the ICs to confirm chip creep hasn't pushed anything out of its socket.
    Look for signs of galvanic fretting in all connectors and sockets (a type of corrosion caused when dissimilar metals are in forced contact).

    That's all my ideas, lol. Good luck.

  7. #7
    ROG Member Array SplitSecond PC Specs
    SplitSecond PC Specs
    Laptop (Model)Asus G73JH, Asus UX301, Asus n73SV, Asus Transformer
    MotherboardRampage Extreme IV
    Graphics Card #1Asus DirectCU II 7970 TOP
    Graphics Card #2Asus DirectCU II 7970 TOP

    Join Date
    Jul 2015
    Reputation
    10
    Posts
    5

    I found the problem I think...

    Recently my other card also became a brick. Both cards dying so fast after each other seemed kind of strange to me. Given that I have no warranty left I decided to disassemble both of my cards. In each card I found 2 out of 6 heat pipes to have melted to the point where liquid coolant could escape and drop on the card itself. Needless to say having no effective cooling is kind of a death sentence for graphics cards... Interesting to note is that both cards have operated in a well ventilated case and have always run in default mode on a Rampage Extreme IV. Seems like a manufacturer malfunction in my eyes.

Tags for this Thread

Posting Permissions

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