PowerSpec G729 AIO cooler faint gurgling when fans ramp up — normal?

kankan

Hi everyone,

I recently got a PowerSpec G729 and I’m new to everything PCs and AIO coolers, so I just wanted to check if what I’m hearing is normal.

Overall the system seems to be working well, but sometimes when the fans ramp up I hear a gurgling or trickling sound coming from the top of the case where the radiator is mounted. When the fans slow down again, the sound gets a lot quieter.

Some details:

• CPU: Ryzen 7 7800X3D
• Idle temps: around 42–48°C
• Radiator: top-mounted
• Noise mostly happens when fan speeds increase

If I gently tilt the case, the sound goes away temporarily, but once the case is back in its normal position the noise eventually comes back when the fans ramp up again.

Since I’m still within the return window, I just wanted to ask if this sounds like normal AIO behavior or if it’s something I should be concerned about.

Link to the sound: https://image2url.com/r2/default/audio/1773689072018-6fa5dbfd-6374-4f33-83f7-6c4c49b2da52.m4a

Thanks!

PowerSpec_MikeW

@kankan

Sounds like air bubbles. The pump is in the block on the CPU.