It is by trial and error. One R10 user reported using the fan for Dell liquid cooler: “For my case, I used a Noctua NF-F12 PWM. After pluging my pump and the fan in the right headers, no boot error.”
Hi everyone, I was just wondering if the Noctua nf-f12 PWM (TOP FAN) will trigger a startup error, I've read that some people are able to use that fan and others say you can't, so I was just wondering what you guys recommend. If the Noctua nf-f12 PWM (TOP FAN) does trigger the startup error, should I just get the Corsair ML120 Pro?.    Thanks, Jordan 
Aurora R7, top fan replacement Noctua nf-f12 PWM