@ TRICHEESE - not trying to pick a fight with you, just commenting that it won't matter if the" top of the block is connected directly to the base" because air is not nearly as efficient at cooling the CPU as is water. The point about properties not changing was in your reference to Martin210's testing. Apologies if it came across as snide - that wasn't the intention.

Please continue the discussion by PM if you want - let's keep the focus here on nateman_doo's block and the testing in progress.