{"id":11458,"date":"2019-10-14T00:01:00","date_gmt":"2019-10-13T22:01:00","guid":{"rendered":"http:\/\/159.69.82.204\/win\/?p=11458"},"modified":"2021-01-14T21:28:59","modified_gmt":"2021-01-14T20:28:59","slug":"surface-book-2-cpu-and-dgpu-issues-fixed","status":"publish","type":"post","link":"https:\/\/borncity.com\/win\/2019\/10\/14\/surface-book-2-cpu-and-dgpu-issues-fixed\/","title":{"rendered":"Surface Book 2: CPU- and dGPU issues fixed"},"content":{"rendered":"

[German<\/a>]Microsoft released a Firmware update to fix two issues with Surface Book 2 running Windows 10 1903. The CPU throttling to 400 MHz and the disabling Nvidia dGPU bug shall be fixed. <\/p>\n

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Some details about the two issues<\/h2>\n

\"\"Owners of a Surface Book 2 has been facing two issues. When installing the Windows 10 May 2019 Update (Version 1903), the Surface Book 2 caused trouble with the separate GeForce GTX 1060 graphics card. This graphics card was supposed to relieve the internal graphics chip of graphics-intensive tasks. However, models with this graphics card had the problem that the graphics processor on the additional card separated at random. This had a huge impact on the graphics performance of the Surface Book 2. The thread here at reddit.com<\/a> describes the issue.<\/p>\n

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Surface Book 2 BSOD and GPU disabling problems since 1903 <\/p>\n

Evere since I updated windows to 1903 and got new firmware I have been having a lot of problems that I hope you can help me solve: <\/p>\n

1- I am getting BSODs regarding VIDEO_TDR_FAILURE and nvlddmkm.sys. I reverted the nvidia drivers this morning and I haven't got a BSOD yet but it's only been a few hours. <\/p>\n

2- My GPU disconnects randomly. I am using the pc attached to the base and I hear the USB disconnect sound and I no longer see the 1060 gpu. At the same time I notice that my wacom tablet acts as if I just plugged it. <\/p>\n

Between the freezes and the disconnects I am driving myself crazy. I already lost hours of work because of one BSOD (BSOD showed up as I was saving a file and corrupted it). can someone help? Is there a way to not only go back to 1809 but to also go back to the previous Surface drivers? Thanks!<\/p>\n<\/blockquote>\n

I had discussed this issue within the blog post Surfaces Book 2: Issues with Windows 10 V1903 and Nvidia<\/a> in June 2019 and Microsoft had confirmed this as a known issue. Microsoft also set an upgrade stopper for Windows 10 version 1903 for Surface Book 2. <\/p>\n

The second issue: Devices like the Surface Pro 6 or the Surface Book 2 sporadically throttle the CPU down to a clock frequency of 400 MHz. I've mentioned this issues within my German blog post Surfaces durch Firmware-Update auf 400 MHz gedrosselt<\/a> in mid of August 2019. The problem seems to be due to a wrongly set CPU flag called BD PROCHOT (bi-directional processor hot). This flag tells the processor to slow down due to high system temperatures. <\/p>\n

A Microsoft spokesman had said in August 2019 that the developers were working on a solution through a firmware update. In the blog post mentioned above, I had announced a fix at the end of September 2019, and  that Microsoft run internal tests with fixes. A few days ago I became aware, that affected people were informed in the Microsoft Answers forums to join the Insider program of Windows 10 in order to get the fixes in advance.  <\/p>\n

Firmware update with fixes in broad deployment<\/h2>\n

Now several media reported, that a firmware update with fixes are available. The Surface Book 2 update history<\/a> enlists the following firmware updates for October 2019 for Surface Book 2 devices running Windows 10 April 2018 Update, version 1803 or greater.<\/p>\n