I just bought a corsair H100 about a month ago with lot number: 12129403, Honestly, there is the weird pump noise, but no problem for me it is quite negligible to my ears. Pump is running @ 2238rpm, I have a 12v rail, rated at 12.480 (Seasonic X-850). Just yesterday when I opened up my computer, The default corsair fans connected to the pump is not lowering down. Normally before, All of my case fan including the h100 fans will spin @ full load at start up and after boot when the fan settings kicked in, it will spin down, But right now, Even after boot, fans stays at full RPM while my case fans already throttled down. Is the fan profile/controller broken? I already tried resetting the firmware, but no good, it is still the same. profile leds still working when selecting different profile, but no changes on fan speed.
One more thing, I have my friend who owns an H100 too, What is the normal led for this cooler? White or blue? Mine was white, and if I am in the profile one, the only led working was the number 1... 2nd and 3rd profile leds are off together with the guy logo on the bottom right. My friend Unit was entirely different. His H100 leds are always lit. even the guy logo. and he has the white/blue leds combination. When he is on the profile 1. Number 1 led is lit with white, while 2 and 3 is blue. and the guy logo on the bottom right has a blue led also.
I don't know what maybe the fix for this since I have this uncommon H100 problem. I am really thankful that this kind of thread exist. More credits to "wlw wl" for the helpful posts. I am located in the Philippines and I don't want to end up to RMA my unit,cause here It will take some time. Still cross fingers maybe someone could hand me help here. Thanks! Sorry for my bad English though.