Running Ryzen 7 1800x two Vega 56's and lose a thread after a few hours of mining

[Chad]

Hello,

I'm running two Vega 56's no mods just simple overclocking with the following config for both below.. After an hour or a few hours the second Vega combines its threads under one ID, which ends up losing 600H/s or so.

Here is what I see when I get my hashrate from XMR Stak: I apologize the following ID's below might not be accurate, I'm away from my mining rig at the moment. This is just for the Vega's, let me know if you need the CPU info...

ID 10s ID 10s
0 - 930 H/s 1 - 921H/s
2 - 1350H/s 3 - 0H/s when I first start XMR STAK 2.3.0 this will show 920H/s and 930H/s

But for some reason after a period of time it combines them.. I've made the files "read" only thinking perhaps there was something being changed midway... Both GPU's stay around a temp of 50-53.. Not sure if this is perhaps a bad Vega or something in the coding I'm doing wrong?? I've re-downloaded everything, uninstalled the drivers even cleaned the entire computer and reinstalled a fresh copy of windows etc.

Below is my config for XMR STAK

"gpu_threads_conf" : [
// gpu: gfx901 memory:3920
// compute units: 64
{ "index" : 0, "intensity" : 1632, "worksize" : 8, "affine_to_cpu" : false, "strided_index" : true },
{ "index" : 0, "intensity" : 1632, "worksize" : 8, "affine_to_cpu" : false, "strided_index" : true },
],
"gpu_threads_conf" : [
// gpu: gfx901 memory:3920
// compute units: 64
{ "index" : 1, "intensity" : 1632, "worksize" : 8, "affine_to_cpu" : false, "strided_index" : true },
{ "index" : 1, "intensity" : 1632, "worksize" : 8, "affine_to_cpu" : false, "strided_index" : true },
],

Thanks for your help!