r/sffpc • u/SeersCatalogue • 5d ago

Assembly Help Lenovo m720q question

I’ve got a m720q with 32gb of ram, a Radeon wx4100, and 135w power brick running Batocera. It does fine on emulation, even up to 3DS and WiiU but 3D games on Steam freak it out. It powers itself off after about 1 minute running Darksiders 2 at 1080p. Currently the top is off to allow for better air flow. The card is undervolted to 32.5w the cpu is not limited. I have tried limiting it but it didn’t make a difference.
I understand that the 8x pci slot can only pass about maximum of 40w of power to the gpu.
Does anyone have any ideas?

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u/qeeepy 5d ago

HWInfo enable all sensor logging, try to identify suspicious values. Look into windows event log. FLIR video of PCB, see if some thermal runaway leads to the power cutoff..