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Sub par is an understatement. Seen reviews where they meassured those 140mm fans at 60+ DB. I recently bought a new corsair case that came with stock fans and a H100i and the friggin things are louder than the GPU. It actually makes me angry, never really wanted the H100i but kinda forced into keeping it and leaving my silver arrow in the old case because i cant mount a h100i in that case.
I literally think they make those fans for 10p then just throw them on cases and aio coolers that they give a stupid markup on. No sane person would ever buy them. Mine are going straight in the bin the 2nd my new ones arrive.
You're joking right, on balanced it's far from quiet
On balanced mode my fans run at approx. 1300 rpm, 800 rpm is quiet mode (don't you know your own product?)
HEADRAT
Corsair sp140's werent bad when I used them. Not as good as the included fans. Noctuas should work fine aslong as they are 4 pin.
The stock sp140l's are the best fans there are at the same speed. Massive 112cfm on full load so you wont really get much better for the same speed.
If you think the stock fans are good quality, good luck to you.
Maybe you're a bit deaf from all those years of noisy fans, while I agree it's subjective balanced mode is "noisy", see the reviews above as well as my experience and other in this thread seem to bare that out
I sit next to my Corsair 540 and if I left it on balanced I'd go bonkers in no time