2 ms·
> It seems that Alder Lake no longer support x8/x4/x4 sadly. I would be very surprised if the silicon doesn't still support 8+4+4 operation. I suspect the lac
by wtallis 4y ago
> It seems that Alder Lake no longer support x8/x4/x4 sadly.
I would be very surprised if the silicon doesn't still support 8+4+4 operation. I suspect the lack of available motherboards with this config comes down to the expense of getting a PCIe gen5 signal to reach the third slot. It may require both the extra mux and a redriver or retimer.
- fomine3 4y agoI found this from quick Googling https://forum-en.msi.com/index.php?threads/does-pro-z690-a-and-mag-z690-tomahawks-pcie-5-0-x16-slots-support-pcie-bifurcation.375664/ https://forum-en.msi.com/index.php?threads/does-pro-z690-a-a... Perhaps why they dropped the support is because the reason you wrote? Still I wonder is it possible to have Gen5 x8 and Gen3 x4/x4.