I just finished building my custom PC, and I have two 80mm fans that have molex connectors, but not the three pin cables that connect to the motherboard (mine is a MSI H55M-E33). So, I just connect the fans directly to the PSU, and that works fine except that when I put the computer to sleep, the case fans continue to spin. I do have 2 fan ports on my motherboard, but I was wondering if there was a setting in BIOS or something that could shut the fans off even if they are connected to the PSU directly, or if I should just buy a cable to connect the fans to the motherboard.
Thanks!