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I think my and Strategeek's Machine/Subsystem IDs are identical [Device ID: 10DE 13D8 - 1028 05AA] from this thread here: https://www.techinferno.com/index.php?/topic/6729-nvidia-maxwell-vbios-mods-900m-series-overclocking-versions/&page=49 NVFlash --version returns the new 970m card's vBIOS ROM Subsystem ID as 05AB, so would a mismatch in the Device ID above and the Subsystem ID in the ROM be significant? Sorry trying to work this out myself, hope not to be a pain :/

yes got you on that. I'm just changing gears and looking at a different aspect.. Perhaps if i break it down: My symptom is, in switching to optimus and a session of Assetto Corsa, after abt a minute when the 970m is blazing and playing really well, it starts to throttle down and skips frames. Looking at the temps after quitting A/C, the CPU is steady warm/hot and the GPU is showing hot. Running the right hand GPU fan (off) from zero to 100% in speedfan and dropping the left CPU fan (which is at peak) seems to stabilise the system and i'm able to run A/C for long sessions comfortably. Net result is I'll try someing else (EC Firmware) for fan control, but also want to check out a modded vBIOS and possibly other clock settings for shits n giggles and to experiment. Perhaps you can comment? i dont know i'm just looking at my old dear AW and experimenting what i can do to her without breaking her vBIOS & NVIDIA Inspector: https://1drv.ms/u/s!AqWfKVYwkxiekwuzcvf64UsphIir?e=CjgK3s

Perhaps if i try the vBIOS mod myself i can get some better results myself. Is one still available?

I've similarly have installed a 6GB 970m from aliexpress in my AW17 2013 Ranger from a failing 860m. Had to mod the NVIDIA Driver 460.89 for the 970m. The fan's function however seems a bit erratic... Im usung speedfan to load the GPU fan (right hand) to 100% to ease up the CPU fan (left hand).. targeting around 40-50% due to fan noise. I reckon the vBIOS might need modding... Im usiung AW17 motherboard BIOS, and the card's vBIOS is 84.04.85.00.0C. Nothing's unlocked. The power supply I've ben told from a number of boards that 180W is fine for the 970m. Any advice pertaining to tweaks to the vbios would be appreciated Other Specs: GM204, REV A1 Device ID: 10DE 13D8 - 1028 05AA,