Alphacool Eisbaer 360mm Noise (video example)

[LordFeste]

Alphacool Eisbaer 360mm CPU AIO Water Cooling Unit. Purchased from Overclockers in September 2019. It has developed a grinding noise.

I've followed a few of the basic tips which have worked temporarily: tilting the PC; adjusting the setting for the CPU header (ASRock Taichi X570 board); leaving it running for extended periods. But nothing works now.

My next move is to refill with water assuming that the problem is an air bubble and not a dodgy propeller like some google searches throw up in connection with Alphacool Eisebar products. I'm also mindful that Alphacool seemed to have a falling out with Mayhems about something relating to water products.

Before I take apart my PC and attempt to refill the block, does anyone have any suggestions or alternatives I could try? Any more information required? Should I just not bother attempting to fix and RMA the whole lot back to overclockers?

Thanks in advance.

 

[LordFeste]

Here's a video after the machine has been on 11 hours (I normally don't leave it on all day so I don't get this far). It's running relatively quiet now:

I have Corsair Carbide 600Q which has an inverse ATX setup. Good spot @LuckyBenski. I can't fit a radiator that size at the top or the side.

I'm hopeful I can top up the fluid levels sufficiently so it doesn't make the grinding noise for ~9 hours .... given that the cooler has run since September '19 without problem for several months, I'm hoping that's all that's required. If it has to be done a few times a year, so be it.

edit: the popping noise is my son playing minecraft....

edit edit: I could try running my inverse case on its roof