Clock for PCIEx4 connector on TX1 carrier board

Hi everyones,

Is there anyone know the ref clock for PCIEx4 connector on Jetson TX1 carrier board provided from TX1 module is from external clock generator or from Tegra X1 ref clock output? I tried to disassembly the TX1 module but can not find the clock generator. So I assumed that Tegra X1 generates PCIE ref clock for connector. I need to know that for my custom re-designed carrier board. If the TX1 module schematic can public, please give me a link to download it.
Thanks very much.

Phat Nguyen

PCIe clock is from TX1 not external clock generator. Currently module schematic is not public.