medion750ti Posted November 20, 2016 Share Posted November 20, 2016 (edited) Hi guys, after weeks of troubleshooting I just found the reason for the poor performance of my eGPU setup. For some reason, cpu core 0 goes to 100% load right after bootup whenever the eGPU is connected to the laptop. This causes unbearable chop while gaming or benchmarking. As I found out today, this can be fixed by deselecting core 0 for the specific program in the affinity settings in win7 task manager. While this workaround will do fine for running benchmarks, it still isn't great for gaming, since i will notice the missing cpu core, hence performance. The better solution seems to somehow reduce the cpu load on core 0, so that games will be able to make use of the full cpu potential, rather than just a fraction of it. Any ideas? I7 2670QM WIN 7 GTX750TI Looking forward for your reply Cheers Frank Edited November 20, 2016 by medion750ti Spelling mistakes Link to comment Share on other sites More sharing options...
medion750ti Posted November 21, 2016 Author Share Posted November 21, 2016 (edited) Process explorer shows: "Interrupts / Hardware Interruption and DPCs" as being responsible for the 100% usage on cpu core 0. Edited November 21, 2016 by medion750ti Link to comment Share on other sites More sharing options...
medion750ti Posted November 28, 2016 Author Share Posted November 28, 2016 (edited) Just to give an update to whom it might be of interest: The cause seems to be a pcie whitelist issue. When booting into setup 1.3 with the wifi card and then hotswapping the eGPU, the hardware interrupt is gone. The undo whitelist option in setup 1.3 unfortunately is of no use on this particular setup. Purchased a mpcie extension cable to do the hotswap without having to take the laptop apart after every reboot. For me that is a good workaround. Cheers Edited November 28, 2016 by medion750ti 1 Link to comment Share on other sites More sharing options...
Recommended Posts