Resolved R9 380 cooling fan doesn't spin in my 5,1...

Discussion in 'Mac Pro' started by pighair, Jun 23, 2016.

  1. pighair macrumors newbie


    Jun 23, 2016
    Hi everybody,

    I bought SAPPHIRE Radeon NITRO R9 380 4G GDDR5 OC DUAL-X model today to upgrade my Mac Pro 5,1 (mid-2010).
    I successfully replaced old 5770 using additional 6-pin power cable from broken GT8800 I used before.
    However when I powered up my Mac Pro, fan of R9 380 does not move at all, and I cannot see anything but black screen after I hear booting sound and HDD sounds usually I hear during booting process.

    I checked power cables and ports by testing 5770 with each one, and both were successful.
    I tried to change PCIe slot to second one, result was same.
    I also tried to change BIOS setting dip switch, but nothing changed.

    Difference between my graphic card and the card mentioned in this forum is that SKU number.
    Everyone is talking about 11242-13-20G, but mine is 11242-13-42G.
    I live in South Korea and this model is unique one for 4G GDDR5 R9 380 that I can buy here.
    I cannot find any other model from with same family name and VRAM capacity.

    What can I try more to fix this issue?
  2. Fl0r!an macrumors 6502a

    Aug 14, 2007
    Use your HD 5770 to enable VNC, plug your R9 380 back in & log in from another computer to see what's going on.

    Either your graphics card has an unsupported device ID (thus causing the driver to ignore the card) or you have one or more dead ports, because the RadeonFramebuffer doesn't like your card.
  3. pighair thread starter macrumors newbie


    Jun 23, 2016
    When I access via VNC, I can see four 800x2400 size desktops like following screenshot. IMG_1720.JPG

    I could log in, and according to apps open screen is flickering, and broken like following screenshot whenever I tried to move cursor, switching apps and try things, etc.

    There was no change when I plug display (I use DVI port) in or out.

    Would it be driver and/or port issue? Or my card is just damaged?
    It bugs me that box was not sealed when I take it from the seller.
  4. Fl0r!an macrumors 6502a

    Aug 14, 2007
    Take a screenshot of the graphics section in your System Profiler.
  5. pighair thread starter macrumors newbie


    Jun 23, 2016
    Can't launch System Profiler on R9 380 because screen is broken and I cannot recognize where I'm clicking. Even though I could launch System Profiler using keyboard shortcut, I think I cannot move to graphics section. I'll try it by memorizing menu location and practice keystorkes. Will upload screenshot if success.
    --- Post Merged, Jun 23, 2016 ---
    I found I was cheated by seller...
    If I encounter issue again after I replace my card then I'll continue this thread.

    Thanks a lot Fl0r!an!!
  6. Mr. Incandenza macrumors newbie

    Jun 23, 2013
    Hey I've got a 380 and depending on your version, it's a feature of it to not spin the fan when it's not overly hot. As soon as it starts experiencing load, the fans spin up.
    --- Post Merged, Jun 24, 2016 ---
    I should have fully read your post, I have the exact card. I only use my machine for gaming so I just use Windows on it, I don't think the 380 has been shown to work in OS X at all.

    If you're intending to use it to game, make sure to flip the BIOS switch. Mine won't boot without switching it. I think it changes from UEFI to standard or something.
  7. pighair thread starter macrumors newbie


    Jun 23, 2016
    I heard from the seller that fan will spin if temperature goes high, but my card was something wrong. Especially I didn't buy used one, but it was used. Serial # of box and card were different. I refunded it and buy new one from another shop and it works well and I'm writing this with new 380.
    However I found working card's fan spins for a short time just after I turned power on. Previous one never moved.
    I didn't check the bios switch but should check now. Thanks for comments!
  8. barefeats macrumors 65816


    Jul 6, 2000
    I have an ASUS GeForce GTX 980 Ti STRIX that does the same thing - fans spin briefly at startup. Then stop spinning. If I stress it with something like FurMark benchmark, the "GPU burner," they definitely spin.
  9. pighair thread starter macrumors newbie


    Jun 23, 2016
    As I mentioned in previous reply, I found new card spins for short time after power up. Previous one which made me create this thread was broken one... I want to change this thread as resolved but I don't know how to...
  10. jbarley macrumors 68040


    Jul 1, 2006
    Vancouver Island
    As the originator of the thread you can edit the post title, on your first post, top right area there is a small gear icon, click on it to get this menu...then click "Edit Title"

    Screen Shot 2016-06-27 at 7.44.09 AM.png
  11. pighair thread starter macrumors newbie


    Jun 23, 2016

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