Pitting on plate and staining on GPU water block

[morleyc]

Dear all, I have installed the Alphacool Eisblock Aurora Geforce RTX 4090 AMP with Backplate GPU graphics block and had it running for about 6 months.

I noticed something was staining the plastic and plate so i took it apart.

I have noticed what appears to be pitting inside metal plate that sits on the radiator fins - what i thought was gunk building up on taking it apart can clearly see its reacting to something.

I only use Alphacool radiators, fittings and coolant. The Alphacool CPU block is totally clear and does not have the same issue.

The rear side of the plate (that sits on the radiator) is smooth and mirror like without any pitting, so i don't think this is a coolant issue.

Is this normal, and is it safe to put back in and run again? Please advise. I have put a support request in but posting here in the meantime.

 

[Eddy]

Please write an email to info@alphacool.com
Dont forget to put a link to this threat inside, so the support team can see the pictures.

 

[morleyc]

Hi @Eddy, support have said this is normal. I have to disagree, there is physical pitting on the surface of the water side face.

The rear side is totally smooth chrome still.

 

[Eddy]

Sorry for my late reply, I have not been in the company for the last few days.

Please give me the e-mail address you used to contact us via PN.