Automotive A100 SXM2 for FSD? (NVIDIA DRIVE A100)
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I added another power line for 5V and added some capacitors, which doesn't help. If I close the side of the box, the GPU runs at 83degC instead of 81, and it shuts down noticeably earlier, so it should be some thermal issue. My best guess is VRM. Since in my country no 5-6mm thick thermal pads are available, I used three layers of 2mm ones; maybe that's the problem.
Given that I can find 0 information on the card, originally I thought the card was 250W as it is SXM2 and it's 12V instead of 48 like the full version (now I don't understand why they switched to 48V, maybe just for easier PCB routing). I saw the incompatibility of the mounting points a day before I traveled home to where my server is, so I couldn't yet order an SXM4 version. I thought as long as the temps are under control, I will be fine. And the 81deg is fine compared to the other GPUs I used. It looks like it might provide insufficient cooling at the VRMs. Maybe the SXM4 ones have a vapor chamber there as well, or just more fins, idk.
Can somebody tell me what heatsink this card uses? SXM4 doesn't have the pads for the VRMs like SXM2 does, and also overlapping the image of an SXM4 heatsink with the card seems to show that the mounting points still don't match (although I found only a pretty bad image of the SXM4 from the bottom). Has anyone actually tried to fit an SXM4 heatsink on it?
I have seen multiple people using sxm4 heatsink on them on xianyuCan somebody tell me what heatsink this card uses? SXM4 doesn't have the pads for the VRMs like SXM2 does, and also overlapping the image of an SXM4 heatsink with the card seems to show that the mounting points still don't match (although I found only a pretty bad image of the SXM4 from the bottom). Has anyone actually tried to fit an SXM4 heatsink on it?
some SXM2 heatsinks dont have pads for the VRMs either (the copper 2U ones). I'm guessing they are intended to be cooled by massive chassis airflow instead. but i do like that the 3U SXM2 heatsinks have the VRM cooling directly so it's not much of a worry and you can run quieter fans.Can somebody tell me what heatsink this card uses? SXM4 doesn't have the pads for the VRMs like SXM2 does, and also overlapping the image of an SXM4 heatsink with the card seems to show that the mounting points still don't match (although I found only a pretty bad image of the SXM4 from the bottom). Has anyone actually tried to fit an SXM4 heatsink on it?