Guide to Insulation Against Condensation
Insulating the Graphics card
Let’s start off with the back of the card first. Coat back with
a layer of nail varnish. Mask off the connector with tape to prevent an accidental
coat over this area. Before that, protect any stickers you have with the method
suggested in the motherboard section.
Next, cover up the area with seal string. Make sure you do not
cover up any chips with seal string, just their pins/legs.
Fabricate an acrylic back plate that you will use to clamp on
a piece of foam or neoprene against the back of the GPU. It is most recommended that you use springs in addition to your clamping mechanism as foam and neoprene and seal string are compressible and thus, after some time, you may find the clamping pressure reduced significantly if you do not use springs. Here is an example
of a very thoroughly insulated video card.
For the front part, start with a layer of nail varnish as well.
Then put on the seal string. You can seal string the bottom of the capacitors
on board the same way described under the motherboard section. If there are
metal components on top of the chip of the GPU itself like the Radeon 9700 and
9800s, remember to coat them with a layer of nail varnish.
A thoroughly insulated card:
Next, we have to insulate on the motherboard’s side.
Insulate the back of the AGP slot of the motherboard as described
under the insulation of motherboard. You should insulate the whole vicinity
of the AGP slot since the cold will spread. Insulate the front part also by
sealing up the AGP slot bottom with seal string like so:
I insulate as far as the second PCI slot because I have found
condensation spreading that far.
Now, before putting on the graphics card, rub dielectric grease
into the AGP slot.
And then if you want to be safe, brush the connectors with dielectric
Then you can put on the insulated card.
Reversing the insulation
Now, for whatever reason you want to remove the insulation, here’s
Peel off the seal string. You may find some gentle prying with
a test pen helpful but be careful that you don’t scratch the board or pry off
components. Seal string residue can be removed by using a chunk of seal string
and pressing it against the residue and then pulling it off. The residue should
stick to the chunk and come off when you pull it off, just like blue tac.
Wipe off silicone/dielectric grease with a piece of cloth first
and then spray the area with contact cleaner. Little bits of seal string that
doesn’t come off can also be removed with contact cleaner. Just wipe off after