Liquid Flow Restriction

I use a Swiftech MCP50X pump with a FrozenQ 400mL cylindrical reservoir. The pump is powered by a direct SATA connection to an EVGA 1300G2 PSU and controlled by an Aquacomputer Aquaero 6 XT. There is a previously calibrated in-line flow meter and Dwyer 490 Series 1 wet-wet manometer to measure the pressure drop of the component being tested—in this case that of each radiator. Every component is connected to the manometer by the way of 1/2" x 3/4" tubing, compression fittings, and two T-fittings.


Given everything we saw before, comparing the cooling engine of the EK-Supremacy Classic RGB to the EK-Velocity and older EK-Supremacy EVO, it was no surprise to see that this block is less restrictive than the older EK-Supremacy EVO, which is mostly due to the simplified cooling engine without inserts and a slightly lower microfin area. Note also how all the EKWB CPU blocks are close together, showing that there is really not much to set them apart practically. Overall, the EK-Velocity is a low-medium restriction CPU block, which is nice to see compared to some of the competition that crams in a lot of microfins at the expense of coolant flow rate. We will see how this affects thermal performance on the next page.