Sorry, here is the exact part list, my memories were wrong.
1.1 Package Contents •ASRock Rack EPYC3251D4I-2T / EPYC3101D4I-2T / EPYC3251D4I-NL / EPYC3101D4I-NL Motherboard (Mini-ITX Form Factor: 6.7-in x 6.7-in, 17.02 cm x 17.02 cm) •Quick Installation Guide •1 x Oculink to 4 SATA Cable...
Thanks, I saw the cable, too.
But i have found this: Supermicro CBL-SAST-0956 55cm OCuLink SFF-8611 (x4) to U.2 PCIE x4 SFF-8639 with Power Cable
This would be a perfect solution for another U.2 drive. (I am using the mobo's nvme slot for an intel optane 900p u2 drive.)
There is a little free space between the memory slot and cooler sink, I had to push the zip tie very carefully. If you check my pictures at the first post, you can see the zip tie.
I didn't dare to poke the screws. At the moment, I do not know a better solution than what I have proposed. The 6...
Zip ties are working fine.
You can thread it perpendicular to the memory slots through the 2 edges of the heat sink, all that matters is that the zip tie should be very thin so you won't break off any PCB components.
Thats how I am solved to secure the cooler.
The rubber nubs are not safe.