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Thread: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output




  1. #21
    lbdesign is offline Junior Member
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Thank you for your comment. I already start a new post (h77 pro4/MVP and Radeon 7750 on PCI Express 3.0), and see this one later with same problem but different hardware I must leave the comment because everything is the same. My opinion is that PCI-E 3.0 have some bugs with ASRock. I thing that because, guy who start this treat write somewhere else that he buy new ASUS P8Z77-V LK and everything was working from start as it should, with the same VGA. I will test VGA this days on some other PCI-E 3.0 motherboard and tell you results. ASRock dealer for Serbia already instructed me to send MB in service but first i`ll like to check VGA.

  2. #22
    lbdesign is offline Junior Member
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Quote Originally Posted by synack View Post
    There are numerous threads here and elsewhere that seem to point to an issue with the video card and it's PCI3 compatibility.
    can you point me on some thread with 7750 or Sapphire PCI3 compatibility?

  3. #23
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    I'll respond to you in your new thread.

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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Dear all,

    I tested Sapphire HD7850 on Z77 Pro3 and system works normally.

    Please kindly update the latest BIOS P1.60 from below link and load BIOS default settings to try first.
    Link: ASRock > Z77 Pro3

    If the symptom still occur, please kindly contact me via PM directly.

    I will check the detailed information with you.

    Thanks!

    Have a nice day
    ASRock TSD
    Emily

  5. #25
    lbdesign is offline Junior Member
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Hi Emily,

    do you know something about h77 pro4/MVP (bios 1.4) compatibility with radeon 7750.

  6. #26
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Quote Originally Posted by ASRock TSD - Emily View Post
    Dear all,





    I tested Sapphire HD7850 on Z77 Pro3 and system works normally.

    Please kindly update the latest BIOS P1.60 from below link and load BIOS default settings to try first.
    Link: ASRock > Z77 Pro3

    If the symptom still occur, please kindly contact me via PM directly.

    I will check the detailed information with you.

    Thanks!

    Have a nice day
    ASRock TSD
    Emily
    Stil have the same problem here. PM'ed you.

    My system contains the Z77 PRO3 with newest firmware and the ASUS HD7870 DIRECTCU II. The only way I get a signal is setting PCIE2 link speed to gen1.

    Maybe it takes too long to get rid of the problem that way? What to change .. mainboard or graka?

  7. #27
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    To reply to this post, im also experiencing issues with Z77 pro3, bought Sapphire HD 7870 ghz edition, OC 2GB/256bit and i can confirm that if you install this graphic card to PCIe slot 2 (two) that is said to support pcie 3.0, you cannot get any signal output from graphic card, card is not even listed in bios under hardware managment. PMed Emily about problem.

    My system specs

    Asrock z77 pro3 rev. 1.0, bios 1.60/-/Intel i5 3570k/-/2x 4gb PC-12800 G.Skill Ripjaws
    Sapphire Radeon HD 7870 ghz. edition, OC, 2GB/256bit/-/G.Skill Phoenix EVO 115GB SSD
    Seagate Barracude 2tb/6gb/s ST2000DM001/-/Coolermaster Hyper 212 EVO CPU cooler
    Corsair Graphite 600tm chassis/-/PSU Seasonic SS-620GM 620W/-/Razer Naga
    Logitech G35 7.1 USB earphones/-/Logitech g510 usb keyboard
    Monitor Dell U2412M,IPS,LED, 24",1920x1200
    Last edited by Bens; 11-12-2012 at 05:35 AM.

  8. #28
    parsec's Avatar
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Do you have the Intel Management Engine (IME) software installed? That can affect the PCIe 3.0 interface in some cases.

  9. #29
    synack's Avatar
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    If you search this forum, or look at my threads, there is at least one other thread about this that just about confirms its a video card issue. I've seen a total of 3 people with this issue have it resolved by rma'ing their video card.
    I'm thinking that since PCIe 3 is still fairly new, hardware manufacturers are still hammering out the specs.

    Syn

  10. #30
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    Default Re: Asrock Z77 Pro3 and Sapphire HD 7850 OC PCI-E 3.0 slot problem - no signal/output

    Quick update for this, i managed to get 2nd sapphire 7870 to run them in SLI, and i can confirm that PCIE slot 2 is not working as intended, even putting cards to CFX doesnt solve the problem, what should i do?
    I have seen that there are BIOS updates for z77 Extreme4 and they added possibility to swap PCIE link speed to either gen 2 or gen 3, when can Z77 pro3 users expect this update since its urgent, or should i RMA the board since i want to run my setup in CFX mode.
    Asrock z77 pro3 rev. 1.0, bios 1.60/-/Intel i5 3570k/-/2x 4gb PC-12800 G.Skill Ripjaws
    Sapphire Radeon HD 7870 ghz. edition, OC, 2GB/256bit/-/G.Skill Phoenix EVO 115GB SSD
    Seagate Barracude 2tb/6gb/s ST2000DM001/-/Coolermaster Hyper 212 EVO CPU cooler
    Corsair Graphite 600tm chassis/-/PSU Seasonic SS-620GM 620W/-/Razer Naga
    Logitech G35 7.1 USB earphones/-/Logitech g510 usb keyboard
    Monitor Dell u2412M,IPS,LED, 24",1920X1200

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