VIEW: Cradle - 1st Person RPG by Mojo Game Studios


GPU Water Cooling


Water circulates through a water block that transfers heat from the GPU to the water.   The water passes through a radiator to be cooled.  To install it, the heat sink that comes with the card is removed and the water block is mounted on the chip.  

The GPU generates tremendous heat when running gaming graphics.  It can safely operate at 90 degrees Celsius, before the system automatically slows it down.  Water cooling greatly reduces the operating temperature (see Mojo Game Studios Water PC for some stats) . 


How to Choose a Water Cooling Block

We chose this Swiftech cooling block due to it's low resistance to water flow and the copper block, which has better heat transfer (see Water Cooling Blocks).  Make sure you get the attachments that Swiftech has to allow this universal water block to fit your particular graphics card (see below).

How to Water Cool the GPU

To install the water block, one needs to remove the heat sink that comes on the graphics card.  This will expose the GPU itself (see below).

Swiftech makes a full cover water block or an additional heat sink to fit this graphics card, because the RAM requires cooling as well (see Water Cooling Blocks).  Therefore, we had to make some modifications to get this cooling block to do both.  An easier option would be attach RAM heat sinks or use the additional heat sink attachment.  Not realizing this until we were ready to build, we chose to take the aluminum plate that came with the original heat sink (that covered the RAM) and modify it, so that it would allow the copper on the water block to make full contact with the GPU.  We kept a tight fit so that the aluminum  plate would make good contact with the copper water block (see above middle- right). 

The next step is to apply a thermal paste compound to the GPU, so that there is full contact between the GPU and the water block.  Keep it thin (how to apply a thermal compound) Extra paste was applied to the contact points between the cooling block and the aluminum plate.  After the water block was secured to the GPU (see above, upper right). we decided to re-mount the cooling fan (hated to waste it), using parts left over from the extra bracket that Swiftech provided with the water block (see below).