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Thread: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds




  1. #1
    SuperMoncho is offline Junior Member
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    Seattle
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    Unhappy Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    Hello:

    I have a Sapphire 7950 paired with an ASRock Z77 Extreme4 (BIOS v2.7) and an i5-3570K. The problem that I have is the following:

    The card is only being detected if it’s working at PCIE Gen 2 speeds and it seizes to be detected at Gen 3 speeds.

    Here are some details:
    - The video card is connected to the PCIE2 port (which is a PCIE 3.0 x 16 slot, all other slots are of lower speed)
    - The video card will only be detected if the port is set to GEN1, GEN2 or AUTO in the North Bridge settings in the BIOS
    - If the card is set to GEN 3 it stops being detected
    - If the card is set to AUTO, when I run GPU-Z it detects it as running only at GEN2 speeds even with the rendering test.
    - All the components are new
    - All power connectors are connected to the card and I verified that it is seated correctly


    So…
    -What can I do to get the card running at GEN3 speeds?
    -What tests can I do to determine which of the components is at fault?



    Bellow are the complete system specs:
    Intel Core i5-3570K
    ASRock Z77 Extreme4
    _ BIOS V2.7 (v2.0, 2.2 and 2.5 also tested with same results)
    SAPPHIRE 100352-2L Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16
    _ GPU BIOS version: 015.023.000.001.000000
    _ Driver Ver: Catalyst 12.11 (12.10 also tested, same results)
    CORSAIR Vengeance 16GB (2 x 8GB) DDR3 1600
    CORSAIR Builder Series CX600 600W ATX12V
    Corsair CWCH60 Hydro Series H60 High Performance Liquid CPU Cooler
    OCZ Vengeance SSD
    LG BD-RE SATA (WH14NS40)
    Windows 7 Pro 64-Bit

    Other Similar Case:
    http://forums.tweaktown.com/asrock/4...al-output.html

  2. #2
    SuperMoncho is offline Junior Member
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    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    UPDATE:

    I just tested an XFX Radeon R7770 on the same port (and system) as I was testing my Sapphire 7950 and it is working at GEN 3 speeds (PCIE 3x16).

    I ran 2 tests:

    1. Set the BIOS to GEN3 and the card is detected with no issues
    2. Set the BIOS to AUTO and run GPU-Z and it is also detected as PCIE3x16.


    I'm currently in talks with Sapphire. Besides the 9750 being broken are there any other issues that I might be missing??

  3. #3
    Join Date
    Aug 2009
    Location
    Birmingham,Great Britain
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    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    its probably a bios bug with the 7950 and your motherboard,ive already seen another user recieve a custom bios from asrock to fix his 7850,it wouldnt work at all before,i would email asrock and tell them whats happening,
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  4. #4
    SuperMoncho is offline Junior Member
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    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    I did contacted them earlier today and received this reply...

    "Dear Customer,Please DO NOT reply to this automatic mail. It is just a confirmation that we have received your email. We will have technical support personnel to contact you soon.
    For technical issue and emergency case, we suggest you to contact your dealer first.
    If your dealer can’t solve your problem, ASRock web site also offers FAQ and CPU support lists (ASRock > Support). Some similar questions or solutions could be found there and our technical support engineers update the FAQ every month.
    If it is regarding repair/RMA service, please kindly check with your dealer for related service. Please remember to record the model name & product serial number for future tracking.
    Thanks for your email,
    ASRock Technical Support Division"


    Not sure what to do now, I got this board from NewEgg. Should I contact them??

  5. #5
    Join Date
    Aug 2009
    Location
    Birmingham,Great Britain
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    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    no just wait,thats just a notification that they got your email,wait for a reply from asrock,pretty sure its a bios issue

    just so your aware,the difference from pcie-2 to pcie-3 is less than 1% so your not losing any performance but still its an issue that needs to be looked into/fixed
    Last edited by wazza300; 12-05-2012 at 08:13 AM.
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  6. #6
    SuperMoncho is offline Junior Member
    Join Date
    Dec 2012
    Location
    Seattle
    Posts
    5

    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    Quote Originally Posted by wazza300 View Post
    no just wait,thats just a notification that they got your email,wait for a reply from asrock,pretty sure its a bios issue

    just so your aware,the difference from pcie-2 to pcie-3 is less than 1% so your not losing any performance but still its an issue that needs to be looked into/fixed
    Thanks for the info. Yeah I suspected that difference between GEN2 and GEN3 is very little, but if that is not working well it might be nothing or it might be a preview of worst things to come. So I'll try to get it fixed while I can still return the components.

    I'll keep posting as soon as I hear from Sapphire or Asrock.

    PS. Sapphire's customer rep has been solid so far. Less than 1 hour turn-around in reply's. Asrock on the other hand...

  7. #7
    Novuake is offline Junior Member
    Join Date
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    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    Quote Originally Posted by SuperMoncho View Post
    Hello:

    I have a Sapphire 7950 paired with an ASRock Z77 Extreme4 (BIOS v2.7) and an i5-3570K. The problem that I have is the following:

    The card is only being detected if itís working at PCIE Gen 2 speeds and it seizes to be detected at Gen 3 speeds.

    Here are some details:
    - The video card is connected to the PCIE2 port (which is a PCIE 3.0 x 16 slot, all other slots are of lower speed)
    - The video card will only be detected if the port is set to GEN1, GEN2 or AUTO in the North Bridge settings in the BIOS
    - If the card is set to GEN 3 it stops being detected
    - If the card is set to AUTO, when I run GPU-Z it detects it as running only at GEN2 speeds even with the rendering test.
    - All the components are new
    - All power connectors are connected to the card and I verified that it is seated correctly


    SoÖ
    -What can I do to get the card running at GEN3 speeds?
    -What tests can I do to determine which of the components is at fault?



    Bellow are the complete system specs:
    Intel Core i5-3570K
    ASRock Z77 Extreme4
    _ BIOS V2.7 (v2.0, 2.2 and 2.5 also tested with same results)
    SAPPHIRE 100352-2L Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16
    _ GPU BIOS version: 015.023.000.001.000000
    _ Driver Ver: Catalyst 12.11 (12.10 also tested, same results)
    CORSAIR Vengeance 16GB (2 x 8GB) DDR3 1600
    CORSAIR Builder Series CX600 600W ATX12V
    Corsair CWCH60 Hydro Series H60 High Performance Liquid CPU Cooler
    OCZ Vengeance SSD
    LG BD-RE SATA (WH14NS40)
    Windows 7 Pro 64-Bit

    Other Similar Case:
    http://forums.tweaktown.com/asrock/4...al-output.html
    You do realize the fact that your card runs only in Gen3 does not have ANY performance impact whatsoever...

    Not a single modern GPU can use the available bandwidth of even a Gen 2 port, so Gen 3 is redundant for now...

  8. #8
    JoeSchmo is offline Junior Member
    Join Date
    Feb 2013
    Location
    United States
    Posts
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    Default Re: Sapphire 7950 not working with Z77 Extreme4 at GEN 3 Speeds

    Same exact problem.

    I'm using the newer 2.80 BIOS and a HIS 7870.

    I can see where this is leading. An incompatibility, both products are working fine, just not together. So neither company will accept a return for refund. Which leaves me with a big *#$% up my !@#.
    Wonderful.

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