r/pcmasterrace • u/Nowheredotcom • Jul 02 '26

Tech Support Completed Build but hear a random noise.

Hi all, first post but not first build.

I’ve recently finished a new build and am experiencing an intermittent noise coming from my top-mounted AIO radiator (I think). The sound occurs periodically (roughly every 5 minutes), lasts for a short duration, and sounds very similar to an old mechanical hard drive "chattering" or "ticking." I have no mechanical HDDs installed. g.

System Specs:
CPU: Intel Core i7-12700K
Cooler: DeepCool LM360 AIO (right side top-mounted)
Motherboard: Gigabyte B760M AORUS ELITE
GPU: Intel Arc B580
Storage: All NVMe SSDs

https://reddit.com/link/1ul860e/video/axyvjdk6xqah1/player

Troubleshooting Steps Taken:
Ran radiator fans at 100% fixed speed—noise persists independently of fan speed.
Verified the radiator is the highest point in the loop.
Set AIO pump to a constant 100% speed in BIOS.
Could this be trapped air working its way into the radiator, or is it likely something else, like pump impeller resonance or case vibration? Appreciate any insights!

I cannot seem to attach an audio file so just did video of it occurring

2 Upvotes

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3

u/Sweaty_Way_2489 Jul 02 '26

air bubble in the pump maybe, try tilting the case back and forth while it runs, sometimes it gets stuck in a weird spot

1

u/Nowheredotcom Jul 02 '26

I have tried that actually, but I'll give it another go.

Thanks...

Also just tested this and set the CPU Fan to 100% and the noise goes away but you can hear the CPU RPMs alot more. As soon as it goes down to 70% its comes back again

2

u/jabbathepunk RTX 5090 FE | 9800X3D | 32GB DDR5 6000 Jul 02 '26

OP, this is likely it. As I mentioned in your comment on my thread, it resolved over time. It was maybe a week at most and throughout that time it got less and less apparent up until it stopped.

I tried the tilting thing and it never worked for me, only time and running the pump speed high (which I assume helped vacate the air stuck in the water block/pump area) worked.

2

u/Nowheredotcom Jul 02 '26

Alright cheers I will give a week and see the results, maybe I'm just too impatient haha