Thank you very much for your help, I installed Windows as you advised, tried few gpu tests, everything was running fine. To be honest I was afraid that I would not be able to reproduce this problem on Windows, but after running few Dell SupportAssistant tests for various hardware components, it found out that system memory failed multiple tests. So the cause of this problem is probably broken RAM. Since the laptop is still in warranty Dell sent me new parts. Thank you very much for your help again, I really appreciate it :) After new memory arrives, I will let you know if it solved the problem. Have a nice day Vych On Mon, Dec 18, 2017 at 3:44 AM, Valeri Galtsev <galtsev at kicp.uchicago.edu> wrote: > > On Sun, December 17, 2017 8:06 pm, Yves Bellefeuille wrote: > > "vychytraly ." <vychytraly at gmail.com> wrote: > > > >> My only worry is that they would not accept it since I am running > >> Linux (the laptop came with Windows - and I am not sure if the problem > >> would be also present on Windows). > > > > You can download and install Windows legally: > > https://www.microsoft.com/en-us/software-download/windows10 . Without > > a valid code, it will stop working eventually, but you can see whether > > you have the same problem with Windows. > > If laptop was purchased with Windows 10 (some incarnation like > "home",...), then when you will install Windows 10 the same incarnation on > it, it will read its "authorization code , registration number or whatever > prevents it from telling you "buy/ register... from UEFI. If you switched > boot from UEFI to BIOS when installing Linux this will not work, but just > switch boot back to UEFI before installing Windows, and registration will > auto-magically work for you. > > I hope, this helps. > > Valeri > > > > > -- > > Yves Bellefeuille > > <yan at storm.ca> > > > > > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > https://lists.centos.org/mailman/listinfo/centos > > > > > ++++++++++++++++++++++++++++++++++++++++ > Valeri Galtsev > Sr System Administrator > Department of Astronomy and Astrophysics > Kavli Institute for Cosmological Physics > University of Chicago > Phone: 773-702-4247 > ++++++++++++++++++++++++++++++++++++++++ > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >