do you have a X99, or X299 motherboard with 3/4x GPUs?
If yes, please have a look at this solution:viewtopic.php?f=9&t=68650
About TdrDelay, what happens is that the Windows system instantly disable the GPU drivers, if it does not receive a signal after some seconds.
By default the TdrDelay is set to 2s, i.e. if one kernel call takes more than 2s, Windows kills the driver.
If you install the Standalone via installer, we change some Windows registry to better work with GPU Rendering.
To change the timeout, either run the Standalone installer or manually set the TdrDelay key to something like 10s or so. See here:https://msdn.microsoft.com/en-us/librar ... 18(v=vs.85
In the Standalone installer we set these values:
WriteRegDWORD HKLM "SYSTEM\CurrentControlSet\Control\GraphicsDrivers" TdrLevel 3
WriteRegDWORD HKLM "SYSTEM\CurrentControlSet\Control\GraphicsDrivers" TdrDelay 10jh
Some Win 10 users have set the TdrDelay at 60, to solve their stability issues with CUDA.