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Windows 7: BSOD with atikmdag.sys error with brand new GPU

15 Jan 2015   #1

Windows 7 Ultimate x64
BSOD while playing League of Legends and using browser

I have a problem with my new GPU. Few months ago I've bought Gigabyte Radeon R9 270x 2GB OC and installed it in my computer. Then I've noticed strange black squares appearing randomly in my browser [Mozilla Firefox] while I'm on websites like tumblr or Facebok. I sent GPU back for repair but they said everything was fine.
Then I got 2 BSODs. Both displaying atikmdag.sys as error. They both happened while I was playing League of Legends though I'm not sure it has anything to do with it.
I've tried numerous versions of GPU drivers but none helped. I still get those black squares while browsing. They dont appear in video games or while I work in programmes like 3ds max.
I've attached a picture of those squares and a DM Log I've done. If someone knows how to fix this I will be very grateful.

My System SpecsSystem Spec
17 Jan 2015   #2

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit

Quote   Quote: Originally Posted by ninetears View Post
I've tried numerous versions of GPU drivers but none helped.
There are two crash dumps included in the zip. One is of 18/10/14 and the other is of 15/01/15. Both of them happened with 14.4 WHQL installed only.

So we cannot be sure that it is the behavior there irrespective of the driver version installed. Try Download AMD Catalyst 14.9 WHQL Driver ... see how it goes. Let us see any BSOD with this driver installed (not suggesting you to get the latest 14.12, intentionally).

Stress test the Graphics Card using Furmark.
Video Card - Stress Test with Furmark
Take a screenshot of the furmark window before closing it. Upload the screenshot for us.

Also, make it sure that the hardware acceleration is turned off in Firefox. Firefox GPU Hardware Acceleration - Turn On or Off

Let us know the results.
My System SpecsSystem Spec
18 Jan 2015   #3

Windows 7 Ultimate x64

Thank you. I did what you asked and now all I have to do is wait to see if new BSOD happens. I will let you know what happened in a few days with screenshots you asked for.
My System SpecsSystem Spec


 BSOD with atikmdag.sys error with brand new GPU

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