Keeping the cascade GPU setup requires another direct plus a retimer

TheZachMueller · x · 2026-10-10

Zach Mueller adds a follow-up on his multi-GPU expansion board wiring: instead of adding a 9th GPU off one slot, keeping the cascade configuration means going through one of the other direct connections with an additional retimer.

Related event: Teardown: Dual-Switch PCIe Board Drives 8 GPUs From a Single x16 Slot(8 posts)→

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