Setup:
Raspberry pi 5 8gb
x1009 hat
Usb ssd with OS
12v 10a PSU
Ive connected gpio pins and pcie ffc
On system boot appears low power alert which shutdown whole setup
Try to edit config and eepromP
PSU_MAX_CURRENT=5000
Dtparam=pciex1
Nothing helps
Try raspbian64 and ubuntu
Try boot from usb and sd card
Same result
