Quote Originally Posted by NaeKuh View Post
this is called red corrosion.
i addressed it on my silver rant.
But in practice, no one has seen it so far.

The key word is in practice. Not physics.

Because in 99.9999% of the case, your water will be an electrolyte. Its very difficult to separate this.



No the same arguement i had with eric.

If it was that easily avoidable, then why do we see it on our the forum EVERY YEAR, year after year...
The prep is more hassle then its worth, that is why us "fanboys" rant about alu.

The moment your motherboard is touching the case, and it has standoff's, it will transfer current to your case.
The moment your rad is mounted to the case via screws, it now has completed its current.

Overblown? No... its called being precarious....

If it was truely overblown, we wouldn't have corrosion threads pop out each year now would we?
We don't see instances of corrosion every year Most of the time it's something else causing the "yuck factor."

In the 'old days' where alu was directly touching copper, it would happen on timescales users could see. In newer times, even my "Elaborate" contact scheme is a huge stretch--it requires that there's no paint in use and that the backplate makes contact with the metal of the case (both of which are far from given--I chose the GTZ in my example because, AFAIK, Swiftech uses the thickest backplate). The use of an alu radiator is basically safe. Alu reservoir? Safe. Stainless components in a loop? Safe. Why? Mostly because there's no electrical contact.

Galvanic corrosion really is overblown, we're safe from its effects these days because manufacturers have learned not to have the very dissimilar metals in direct contact

EDIT:
Quote Originally Posted by NaeKuh
The part i bolded is why we rant about it.
Sure you wont start off with it, but over time you'll never see it? :P
Even then you're still only satisfying two of the three requirements for galvanic corrosion. You still need the electrical circuit to be completed, which doesn't always happen (and is often easy to totally prevent).