Technically you can use AM4 on AM5 because the holes are equally spaced. BUT. there is a small difference in terms of the height of the mounting bracket (AM5 is slightly higher). It still fits but you wouldn't get a perfect fit. If you go to NZXT and open a ticket, they will ship it to your house for free. You need 3 things: the serial number of your current Kraken, the serial number of your new AM5 motherboard, and a proof of purchase of it. Hi!

the kraken on an am4 card works very well