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Old 02-25-2020, 03:10 AM
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BlaiseP BlaiseP is offline
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Originally Posted by polypusher View Post
My Watercool gpu blocks only have 2 screws and they don't leak. I would really check for a damaged O ring first possibly a sharp edge etc. Just because it has only 2 screws does not mean that it will leak.
The leak is occurring at middle of the manifold midway between the two inlets/outlets t the top of the block proper so I doubt the O-rings play a part. I saw a video of this the other day and I believe the problem comes from tubes pulling downward when the card/block is traditionally mounted in a case. Vertical mounting (or mounting in a test bench) doesn't seem to invite the problem described in the video.

Additionally, if you over-tighten the 2 screws, you end up bowing the manifold in the middle and thus greatly increase the risk of a leak. I use EK blocks and they have 3 screws holding down the manifold which is the case for a number of other manufacturers.

Last edited by BlaiseP; 02-25-2020 at 03:18 AM.
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