Yeah, it's no problem. We're glad to help. What I WOULD do , is make sure all the locations in your case that WILL accept a fan, have a fan. I'm pretty sure it's not 15 of them though. Heh. That's funny. 15 case fans. Hah. Anyhow, yeah, just populate the fan locations you do have and set the fan profiles to either standard or high performance in the BIOS, IF your bios is equipped with user settings for the fan profiles. If you need more fan headers, use something like what I linked to above to split the 3 system headers into six connections. That H100 will be much better than the stock cooler.
Good luck.