The Dell tech came yesterday and replaced the Motherboard, video card, and power supply.  Call of Duty now functions correctly.   
I am getting continual reported Hardware Failures in the Reliability Monitor. The Event Description is below: Description = A problem with your hardware caused Windows to stop working correctly. Problem signatureProblem Event Name: LiveKernelEventCode: 117Parameter 1: ffff9286a50db460Parameter 2: fffff8013e740f00Parameter 3: 0Parameter 4: 6d8OS version: 10_0_22000Service Pack: 0_0Product: 256_1OS Version: 10.0.22000.2.0.0.256.48Locale ID: 3081 Extra information about the problemBucket ID: LKD_0x117_Tdr:3_TdrBug:575504_IMAGE_nvlddmkm.sys_AmpereServer information: c232eba3-752a-4fa2-a3f7-1802021bf2bd Dell have replaced the Nvidia 3070 and the failure still occurs. All diagnostics show no failures. I have reset Windows 11 with no success. Any idea on what the cause may be?  
XPS 8940, Nvidia 3070 failure when running Call Of Duty