Originally Posted by al210
I have had the EK gpu blocks from an old build. Do I need to remove them and inspect them? They look fine while observing them still mounted to the cards.
If they are copper then you are all good, there should be no problems so long as they were treated well previously (no dyes or coolant crud in them).
If they are nickel plated (silvery metal parts) then yes, I would look inside them.
If they have a plexi top then you can just look through that, if it has a acetal top (black plastic) then you will need to remove it to have a look. There are a whole bunch of Allen screws to undo, and usually two rubber o-rings; one big one round the edge and a small one round a screw hole in the centre. Don't worry about the warranty sticker, that is just the leak warranty, EK still guarantee the cards against workmanship and materials (in theory anyway).
You are looking for any flaking of the nickel, usually in "dead" areas where there is little or no flow.
Personally I would always take blocks apart to inspect them anyway during a refit, regardless of what type they were. Especially if they were second hand (I know yours aren't), as you just don't know how they were treated before or if there is any dirt or blockages in them. Plus I love tinkering, so any excuse is good.