I have a 2080 ti & a 1660 super in my computer. I have used the use_all_gpu option so that both will run. However, even though it says Running (0.955 CPUs + 1 NVIDIA GPU(Device 0)) and ...(Device 1)), it's actually using the 2080 only (though twice, it seems). I only noticed because I'm monitoring the temperatures and the 2080's goes up while the 1660's stays flat.

If I tell it to ignore_nvidia_dev 0, then I can get it to use the 1660, but I can't seem to find a way to get it to run both simultaneously. If it ignores the 2080, then the 1660 will run just fine (CUDA utilization 80%+, power draw increases, temperature increases).

I've included the event log for having use_all_gpus enabled. I can confirm through thermals, power from the power supply, and Windows task manager that only the 2080 is being used.
Telling it to ignore either GPU gives an extra line in the log stating it's being ignored.

Thanks in advance for any help.

6/12/2020 10:41:14 AM | | Starting BOINC client version 7.16.7 for windows_x86_64
6/12/2020 10:41:14 AM | | Libraries: libcurl/7.47.1 OpenSSL/1.0.2s zlib/1.2.8
6/12/2020 10:41:14 AM | | Data directory: C:\ProgramData\BOINC
6/12/2020 10:41:14 AM | | Running under account [redacted]
6/12/2020 10:41:14 AM | | CUDA: NVIDIA GPU 0: GeForce RTX 2080 Ti (driver version 446.14, CUDA version 11.0, compute capability 7.5, 4096MB, 3539MB available, 14231 GFLOPS peak)
6/12/2020 10:41:14 AM | | CUDA: NVIDIA GPU 1: GeForce GTX 1660 SUPER (driver version 446.14, CUDA version 11.0, compute capability 7.5, 4096MB, 3555MB available, 5111 GFLOPS peak)
6/12/2020 10:41:14 AM | | OpenCL: NVIDIA GPU 0: GeForce RTX 2080 Ti (driver version 446.14, device version OpenCL 1.2 CUDA, 11264MB, 3539MB available, 14231 GFLOPS peak)
6/12/2020 10:41:14 AM | | OpenCL: NVIDIA GPU 0: GeForce RTX 2080 Ti (driver version 446.14, device version OpenCL 1.2 CUDA, 11264MB, 3539MB available, 14231 GFLOPS peak)
6/12/2020 10:41:14 AM | | OpenCL: NVIDIA GPU 1: GeForce GTX 1660 SUPER (driver version 446.14, device version OpenCL 1.2 CUDA, 6144MB, 3555MB available, 5111 GFLOPS peak)
6/12/2020 10:41:14 AM | | OpenCL: NVIDIA GPU 1: GeForce GTX 1660 SUPER (driver version 446.14, device version OpenCL 1.2 CUDA, 6144MB, 3555MB available, 5111 GFLOPS peak)
6/12/2020 10:41:14 AM | | Version change (7.16.5 -> 7.16.7)
6/12/2020 10:41:14 AM | | Windows processor group 0: 24 processors
6/12/2020 10:41:14 AM | | Host name: [redacted]
6/12/2020 10:41:14 AM | | Processor: 24 AuthenticAMD AMD Ryzen 9 3900X 12-Core Processor [Family 23 Model 113 Stepping 0]
6/12/2020 10:41:14 AM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 htt pni ssse3 fma cx16 sse4_1 sse4_2 movebe popcnt aes f16c rdrandsyscall nx lm avx avx2 svm sse4a osvw ibs skinit wdt tce topx page1gb rdtscp fsgsbase bmi1 smep bmi2
6/12/2020 10:41:14 AM | | OS: Microsoft Windows 10: Core x64 Edition, (10.00.18363.00)
6/12/2020 10:41:14 AM | | Memory: 31.95 GB physical, 36.70 GB virtual
6/12/2020 10:41:14 AM | | Disk: 222.94 GB total, 81.93 GB free
6/12/2020 10:41:14 AM | | Local time is UTC -4 hours
6/12/2020 10:41:14 AM | | No WSL found.
6/12/2020 10:41:14 AM | | Config: use all coprocessors
6/12/2020 10:41:14 AM | | No general preferences found - using defaults
6/12/2020 10:41:14 AM | | Reading preferences override file
6/12/2020 10:41:14 AM | | Preferences:
6/12/2020 10:41:14 AM | | max memory usage when active: 16357.44 MB
6/12/2020 10:41:14 AM | | max memory usage when idle: 29443.39 MB
6/12/2020 10:41:14 AM | | max disk usage: 83.62 GB
6/12/2020 10:41:14 AM | | max CPUs used: 18
6/12/2020 10:41:14 AM | | suspend work if non-BOINC CPU load exceeds 25%
6/12/2020 10:41:14 AM | | (to change preferences, visit a project web site or select Preferences in the Manager)
6/12/2020 10:41:14 AM | | Setting up project and slot directories
6/12/2020 10:41:14 AM | | Checking active tasks
6/12/2020 10:41:14 AM | Milkyway@Home | URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 843393; resource share 100
6/12/2020 10:41:14 AM | Rosetta@home | URL https://boinc.bakerlab.org/rosetta/; Computer ID 3936402; resource share 25
6/12/2020 10:41:14 AM | | Setting up GUI RPC socket
6/12/2020 10:41:14 AM | | Checking presence of 103 project files
6/12/2020 10:41:14 AM | | Running CPU benchmarks
6/12/2020 10:41:45 AM | | Benchmark results:
6/12/2020 10:41:45 AM | | Number of CPUs: 18
6/12/2020 10:41:45 AM | | 5393 floating point MIPS (Whetstone) per CPU
6/12/2020 10:41:45 AM | | 19135 integer MIPS (Dhrystone) per CPU