Re:I rage-converted my RTX4090 into an eGPU
by jauntywundrkind on Friday June 07, 2024 @10:44AM
(#40609230)
The PCI AER (advanced error reporting) can detect issues quite well & report them. The author mentiona that they sort of expected problems, but no, AER hasn't reported any.
Links have to be very smart & capable of self training in modern PCIe to perform at the speeds they do: they have link equalization. So there's incredible diagnostics builtin.
As for active cables, Marvell just announced Alpine P, which is a PCIe6 retimer that capable of working in active electrical cables (and also active optical cables!). I don't know if they buffer data or not - if so it would be a small amount of data I'd expect - but they do receive & retransmit. https://www.servethehome.com/marvell-extending-pcie-gen6-rea...
Links have to be very smart & capable of self training in modern PCIe to perform at the speeds they do: they have link equalization. So there's incredible diagnostics builtin.
As for active cables, Marvell just announced Alpine P, which is a PCIe6 retimer that capable of working in active electrical cables (and also active optical cables!). I don't know if they buffer data or not - if so it would be a small amount of data I'd expect - but they do receive & retransmit. https://www.servethehome.com/marvell-extending-pcie-gen6-rea...