i have a reproducible behavior with the Performance limit Thermal flag being triggered on load change of my GPU, maybe someone is experiencing the same or can reproduce the same with a simple testing
GPU: MSI RTX 3090 Suprim X 24GB, no oc, gaming Bios
CPU: Intel I9-9900k stock
Motherboard: Gigabyte Aorus Master Z390, F10 Bios
RAM: GSkill Trident Z 64GB(4x16) DDR4 3200MHz, XMP enabled, no overclock F4-3200C14D-16GTRS
PSU: BeQuiet Dark Power Pro 11 1200w, 4x12v Rails, 12V1/2(CPU/Mobo/disks etc) 35 Amps each Rail, 12V3/4 (pcie) 45 Amps each Rail
Operating System & Version: Win10 Pro 1909, clean install
GPU Drivers: using ddu when changing drivers, currently on 461.40
whenever there is a larger load change the Performance limit Thermal is flagged yes (hwinfo) or perfcap reason thrm in GpuZ, however neither core Temps nor VRAM temps are anywhere near the throttling threshold.
MSI Afterburner spikes on the temp limit graph, at the same time i saw a drop in Power % but non on core or mem clock graphs.
for example during Benchmarking (3Dmark, ROTTR/SOTTR, RDR2, Division2, Ghost Recon Breakpoint etc.) thermal flag is tripped in HWinfo and flashes in GpuZ sensor Perfcap Reason Thrm, when the benchmark run finishes and you return to the menu, or during gaming session when you exit to menu, so basically when the load on the GPU drops.
first i thought that would be due to the VRAM temps that could not be monitored until recently (thanks HWINFO!!) but now i can see that when this happens the temps are well within limits and way below any throttling threshold.
during testing i found that this behavior started with the 457.x driver branch as the 456.xx did not exhibit this behavior.
i always did a clean install (using ddu) of the follwoing driver versions
461.09: initial driver after i received the card GPUZ sensor records thrm PerfCap Reason,HWinfo shows Performance Limit Thermal Flag tripped with YES
461.33: GPUZ sensor records thrm PerfCap Reason,HWinfo shows Performance Limit Thermal Flag tripped with YES
461.40: GPUZ sensor records thrm PerfCap Reason,HWinfo shows Performance Limit Thermal Flag tripped with YES, HWINFO got updated to include VRAM Temps readout and here i could see that the temps are well within limits (below 90 degrees Celsius)
after researching i found the specs for the mem modules
D8BGX list operating temps state 0-95, throttling should occur around 110 degrees according to Igors Lab research
D8DGX are rated for 1313 MHZ but RTX 3090 clocks them lower at 1219MHZ
I stumbled upon a EVGA forum thread from December, that basically mentions this behavior to be driver related, so i tested
EVGA GeForce RTX 3090 FTW3 XOC BIOS BETA
also on another forum (i posted there as well) other folks with rtx 3080/90 see this as well
Hello, I got an msi 3080 suprim x graphics card, installed the beta version of msi afterburner and maxed my power limit and temp limit (116% and 91°c) In games and benchmarks i reach 58°c max but still afterburner gives me sudden temp limits (0 to 1) on the temp limit graphic. I double checked...
456.98 hotfix: GPUZ sensor does not record PerfCap Reason Thrm, nor does HWINFO Flag the Performance Limit Thermal as Yes during the same testing sessions, also temps on the GPU where slightly lower with 2 degrees (68 instead of 70) however VRAM temps are the same as on the other drivers
456.71 whql: GPUZ sensor does not record PerfCap Reason Thrm, nor does HWINFO Flag the Performance Limit Thermal as Yes during the same testing sessions
i would have stayed with the 456.98 however RDR2 was freezing when entering the game world
out of curiosity I also tested the
457.51: same result as with the 461.x drivers
from the EVGA forum i take it that not only my RTX 3090 is affected but various 3080s as well .
it would be great if users would share their observations or can report if they experience something similar.