Fan speed up

[aorammer16]

i have a coolermaster nepton 280L. but have a weird thing, when i off my computer or shut down. the 2 fans will like boost to max speed and make broooom sound but for 1sec only. is it normal?

another thing is when i shut down my computer, my mouse and mobo light is still up, only off when i switch it off from the PSU button. is it okay to leave it light up? my mobo is asus h97 pro gamer

[iamdarkyoshi]

everything is fine. Some fans or fan controllers do this to try to either dislodge dust or to bring in an extra breath of cool air because heatsinks will still be warm after the PC shuts down. and you can leave the lights on. if you want the mouse light off, there should be a bios setting for it. It is there mainly to change something like a phone VIA USB while the PC is off.

[don_svetlio]

The motherboard light is usually the +5VSB rail - nothing to worry about