Step 5: Run Testmode; Step 6: Connect Graphics Cards; Step 7: Connect Pcie Cables - OCTOMINER X12 ULTRA System Quick Start Manual

5.
Run testmode after the system has fully initialized by pressing the middle button for a few
seconds until you see "Testmode" displaid on the screen. Once testmode finishes with
"OK" move on to the next step.
6.
Make sure that the PCIE connectors are firmly connected to the motherboard.
Start inserting your graphics cards and using the supplied M3 screws to fasten the
graphics card bracket to the chassis.
7.
Every cable has a DIFFERENT LENGHT.
After the graphics cards are firmly connected and fastened take the bundle of the black
tip PCIE cables and stretch them out. Start from the longest cable and connect it to the
backplane in the port labeled as "1". Continue with the next longest in order from right
to left and bottom to top. Cable labeled as "12 is the shortest.