LT720 Very noisy pump

Amraam · 3 Feb 2024 at 23:30

This doesn't sound good or correct. Do I need to change a setting in the bios to tell the system it's a pump, not a fan?

New video by Harry “Planehazza” Marshall

photos.app.goo.gl

Doesn't happen every boot but usually starts about a minute after powering up.
AIO is brand new, literally put the system together tonight. Lots of hits for this noise on YouTube so suspect a bad pump. Not a great start...

random_matt · 3 Feb 2024 at 23:45

I find all AIO's noisy. You can turn down the RPM in the bios.

Amraam · 3 Feb 2024 at 23:47

random_matt said:
I find all AIO's noisy. You can turn down the RPM in the bios.

Never had one sound like this. My 8700k kraken is silent

Amraam · 4 Feb 2024 at 13:06

So just been over to deepcool sub reddit and it's plagued with others having this issue. Urgh.

Anyways. It powers up quiet at the correct rpm but then something is making the RPM drop to 2500 which is when the noise starts. Suspect the noise is the pump choking/stalling. It's correctly set at 12v Dc 100% flat line speed curve.

Parsley · 4 Feb 2024 at 13:11

May be easier to just RMA it back since it's new and a documented problem, why waste the time fighting with it?

Amraam · 4 Feb 2024 at 13:22

Parsley said:
May be easier to just RMA it back since it's new and a documented problem, why waste the time fighting with it?

Yeah that's the plan. Local shop so gonna phone them in the morning. Hoping there's no arguments as I'm happy to just buy an alternative product from them. Just maybe not Deepcool. Might go back to nzxt.

Mcnumpty2323 · 4 Feb 2024 at 19:24

If changing it
Thermalright are also doing AIO
Looking to dominate the bang for buck section
Same as they are in air cooling
Their frozen prism 360mm argb AIO
Is only £55
There's about 3 other models too