Thanks, just what I needed to know! So the CPU OPT header is better used for a push-pull configuration on a CPU cooler (although I don't even know if my CPU cooler supports that)? Do you think it would be good to use this kind of fan on the cooler or do you think it's way too loud and I would be better served with something quieter (since this fan has to be run at less than 50% to be bearable.) Sounds like using the CPU OPT header to run a case fan would not be a good idea since the CPU FAN usually runs at a higher voltage than the case fans on the Chassis header and the fans I am using are particularly loud and I want to keep them to as low a voltage as possible. High quality120dBSNR stereo playback outputand113dBSNR recording input.

Impedance sense for front and rear headphone outputs. Supports : Multi-streaming, Front Panel Jack-retasking, up to 24-Bit/192kHz playback. For the fourth case fan can I use the CPU OPT header or will that lock that fan to the voltage of the CPU fan (which is a different model, although I am considering getting a fifth JetFlo 120 fan for the CPU heatsink.) I really need to regulate the speed of these fans because at 100% they sound like a dozen vacuum cleaners all turned on at once! That's why I dont know if it's a good idea to put a case fan on the CPU OPT header if that header is locked to the voltage of the CPU fan or to get a fifth one for the CPU cooler, the voltage needs to be around 5V-7V (40%) on each fan to make the fan noise bearable. ROG SupremeFX7.1 Surround Sound High Definition Audio CODEC S1220.

I dont want to use a splitter because these fans use a lot of power (0.4A) and I have heard reports that using splitters with them isn't a good idea. Hi, is it a good idea to use the CPU OPT header to control case fans? I have gotten 4 CoolerMaster JetFlo 120 95 CFM fans for the four case fan slots on my case but I see my ROG Strix X470-F Gaming motherboard only has three fan headers for case fans.

Asus formula z cpu opt fan