For example, by spoofing mac pro 7,1 smbios which is the default value of opencore, boot loader simply does not load clock/fan speed management, until a graphical accelerated app is launched while changing to iMacPro1,1, the card will be kept at low performance (low memory clock and low temperature) all the time, even under high GPU demand. **I tried to spoof different SMBIOS through changing board-id (For Monterey on Mac Pro, you may pick between iMac Pro1,1 or MacPro7,1). The vega card is heating my bedroom in winter! The SSD cards beside the vega cards may get toasted and shortened its life span. I have mac pro 5,1 running Monterey with the latest OCLP (opencore legacy patcher) and I have been suffering this problem for long time. In many posts, it is assumed to be acceptable, and was advised to do nothing. There has been a common issue for Vega cards on classical Mac (4,1/5,1) running BigSur/Monterey: the fan is not spinning fast enough on idle, leading to an unreasonable high temperature (~ 75'C).
