3 ms·
Let's talk riser cables. I keep encountering issues with riser connectors claiming to support PCIe 4.0, which seem to have sub-par performance. They work fine w
by KeplerBoy 2y ago
Let's talk riser cables. I keep encountering issues with riser connectors claiming to support PCIe 4.0, which seem to have sub-par performance. They work fine with the GPUs and NICs I tested them with, but attaching a nvme drive causes all kinds of issues and prevents the machine from booting. I guess nvme isn't as tolerant of elevated bit-error-rates.
That just doesn't inspire a lot of confidence in those risers, so now I'm contemplating mcio risers.
- Neywiny 2y agoNVMe sits over PCIe. I'd be more inclined to believe they're playing games with their voltage levels to lower power consumption on mobile/embedded (not based on anything but I wouldn't be surprised). Or, if you're then going to an m.2 adapter, something with that.
- sabareesh 2y agoI ran several nccl test had no issue with bandwidth. https://github.com/NVIDIA/nccl-tests?tab=readme-ov-file https://github.com/NVIDIA/nccl-tests?tab=readme-ov-file