Well, all of the exposed areas are gathering frost.

SLI bridge connector


pci-e connector


dvi connector


Do I need to be concerned with this??

Looks scary!

Once you put a load on the chiller\cards, some of that should go away.

I would watch it very closely for awhile before being sure that nothing is going to fry your stuff.

WOW Q very impressive
It may be a good idea to put some vaseline on the areas that are getting frosty just to make sure no shorts

lol
yeah, i went a bit over board...who buys a phase change...then buys a
vacuum pump
yellow jacket 507 gauges
30 lbs bottle of 507 refrigerant  

getting ready to see what my portable ac and water chiller take.

The reason they frost is because there is no heat generated.  I would 1st, put some Vaseline in the pci-e slot.  2nd insert card and start benching!!

I never EVER had frost on the DVI connector?? how large is that block of yours??  My HK block has a relatively small footprint on the card

Ah, ok, vaseline.  Thanks Snipe and Nate! 

Nate, it's a full block.  It goes the full length of the card with about a 1/2 inch space not covered by the block at the front/dvi connector area.  I covered the end of the block with eraser, shoved shop towels in the open space, covered that area with eraser, then covered with foam.  the cold is still radiating to the dvi's

If I put vaseline "in" the dvi connector, that will be good too, right?  Vaseline in the cpu socket too (I know yes, just want to make sure)?

Just keep in mind that the eraser is not insulation.  It does not contain any insulating properties, just coats something to help prevent water damage.  But even as good as a job that john did, you can see the stuff is not perfect.  Just be careful. 

My HK block doesn't even go near the ribbon cables.  Just sticks out a little bit to get the chips & thats it.  I guess I should be thankful its not such a large block.

Vasline can go anywhere.  John has a good material he says he uses to remove it with ease.  I haven't tried his method yet-but one day i will. 

Q, just insulate like this lol.

And he's running his card on Air, LOL!