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Swiftech SKF TR4 Heirloom CPU Block Review: Threadripping Excellence

Editor's Choice

How We Test: Watercooling Components

One of the challenges with testing individual watercooling components lies not with the component itself, but with maintaining consistency with theremaining pieces comprising the cooling loop. For this, we’ve chosen common, dependable watercooling loop hardware which is designed to limit any specific weakness and provide us with a consistent platform in which to isolate testing components. You can find our hardware list below.

Watercooling Hardware

PumpSwiftech MCP50X
ReservoirSwiftech MCP35X/MCP50X rev.2B Acrylic
FittingsBitspower Matte Black ½”ID x ¾” OD Compression (x6)
RadiatorXSPC EX360
FansScythe Ultra Kaze 3000 RPM 120mm (x3)
Tubing½”ID x ¾”OD clear
CoolantDistilled Water, no additives, coolants or dyes

Our watercooling testbed loop combines excellent flow rates, high-volume fans, and a great performing radiator to focus all results on those produced by the water block samples themselves. Here's a look at the rest of our testbed hawrdware.

Testing Hardware

Power SupplySeasonic SS-760KM 760watt, 80 Plus Gold
Thermal Probe, Fan Controller, LoggerCrystalFontz CFA-633 w/ Dallas One Wire DS18B20 sensors (x2)
SoftwarePrime96 v27.9, AVX FFT length 8k, each test is 2hr continuous run

Our testing hardware closely mimics the standard Intel CPU cooler test system, with the only differences being the AMD Threadripper 1900X processor instead of the Intel i7 5930k and MSI X399 Gaming Pro Carbon AC motherboard, rather than the MSI X99S XPower AC. While this does not allow for apples-to-apples comparisons with Intel tests, the majority of the environment variables are otherwise eliminated.

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  • TheTerk
    This waterblock will be cooling my custom loop shortly!
  • rubix_1011
    To be perfectly honest, the photos do not do justice on how beautiful this block is.