"The card doesn't actually hold the heatsink, the heatsink is directly mounted to 3D printed backplate/bracket and the card is just in between. GPU backplate also provides support to the area behind the GPU die to offset the pressure there. CPU is set to eco mode at 88W PPT and reaches it's thermal limit of 95C. GPU is set to power limit at 90W and reaches 80-85C under full load, depending on the type of the load."
Parts:
CPU: Ryzen 7 7700X
GPU: RTX 4060, Gigabyte Windforce OC
Motherboard: MSI B650I Edge WiFi
RAM: 2x32GB G.Skill Flare X5 6000 CL30
SSD: 4TB Lexar NM790
PSU: 500W Seasonic Prime Fanless PX
Riser: Streacom RZ4
Heatsinks: 2x Noctua NH-P1
Source: reddit