Pump Noise

[Gabbatek]

Hey guys i have a newish h100i v2 and today a kind of loudish noise has started coming from the block that sits on the cpu, which im guessing is the pump?

Its louder than the fans and sounds like a kind of grinding/rattling noise.

Any ideas? I got it from maplin on offer, if i rma it to them under warranty im totally getting the model above from ocuk

 

[Gabbatek]

I've tried and it comes and goes. I've changed the pump to performance and quiet in link but it doesn't change much, still grinding away but occasionally it stops. Do you think it will be accepted as a fault?

 

[Gabbatek]

edit. the grinding and rattle is louder than the fans

 

[Gabbatek]