Heatsinks on Memory Chips
As I noted in the FAQ, the memory chips are not very hot on the 5900XT and ordinary overclocking doesn’t call for an installation of additional heatsinks. That’s also why some graphics card manufacturers leave the chips bare.
Meanwhile, extremely high voltages (starting from 3.2v) heat the memory up and even reduce its overclockability.
There are numerous ways to fastening heatsinks to memory chips. Reversibility of the process is important – you don’t want to lose your warranty, yeah? For example, you can fasten the heatsinks with wire, clips or other such stuff. As for me, I didn’t bother about the warranty, since I lost it altogether by removing the GPU’s lid. Instead, I could achieve the maximum reliability of the fastening and the best heat transfer.
I used a special material, Arctic Silver Thermal Adhesive. This is a product of the legendary Arctic Silver, whose excellent thermal pastes are known to every overclocker in this world.
It is a two-material compound with adhesive properties. It comes in two syringes, 10gram in total. Independently, each component resembles Arctic Silver 3 thermal paste (on which they are based) and has no adhesive qualities.
You apply one component, then another and mix them together – this produces a material with a setting time of 5-10 minutes. As for the mixing part, you first drop Part A, than Part B (near Part A, or right on it) on one detail and mix them “on the spot” and apply the layer on the surface using a credit card for example.
Then you press the heatsink to the chip and wait for the glue to work. If you feel confident, you may go on gluing other heatsinks in the meanwhile…