I love the temps & ease of install of the Thermalright Peerless Assassin CPU cooler I put in my wife’s new build, but I don’t love the subtle but noticeable fan whine. I’ve double checked they’re mounted in the right direction (no arrows on the fans, tsk), seems fine. May try shifting them a bit and if that doesn’t work, actually buy some decent fans - this cooler is very highly rated but also cheap as chips so I’m probably being a little unfair to expect Noctua / BeQuiet sound levels I suppose
Managed to improve the sound levels on the Peerless Assassin, it still has a slight whine at the top end but it’s better.
I was trying to be clever with my fan placement and as always, that’s a terrible idea. This cooler has 2 towers and 2 fans so there’s 3 spots you can put them in. I thought I’d avoid covering the RAM slots and put them towards the rear of the case. The last one even slotted perfectly in the gap above the IO block. 1/2
The problem seems to be that in this configuration the rearmost CPU fan is a little too close to the exhaust case fan (about 2cm gap), and even though they’re blowing the same way, they’re different fans running at different speeds so I think that’s setting up some conflicting air flow and introducing extra vibration. Now that the rear CPU fan blows through the second tower before hitting the exhaust fan, it seems better. Sound profile is still a bit whiny, may replace fans sometime anyway 2/2
Thing is I could buy a couple of 120mm Noctua fans to quieten this down and still have spent less than an equivalent Noctua cooler (and have 2 spare fans). I’ve actually been a big fan (heh) of the BeQuiet ones and they’re slightly cheaper. My Peerless Assassin review: good cooling performance, mediocre fans you’re probably better to replace if you want quiet.
I’d still buy this kind of thing over an AIO though, I have no interest in RGB or case pimping, and air cooling is far more reliable.
I sometimes buy RGB hardware and never even plug in the RGB cable, to annoy the RGB nerds (RGB editions are often weirdly cheaper or the only ones available because so many people want RGB on everything)
I technically have an RGB keyboard but you can’t tell because I put the circuit board under a solid brass plate mounted inside a solid wood housing with black sound dampening foam so no light is escaping from that (evil laugh) 🙃
@sinbad So many weird things with resonance and whatnot that sometimes just changing the rpm by a little changes things in significant ways from my ear’s perspective. Might be worth a try. Glad to hear you improved it with placement. Machine whines are not happy things.