High Core Count, Multi GPU, Small Form Factor, Workstation
General My attempt at a clean, simple, and space efficient build with no compromise on hardware. It has an expanded BeQuiet Silent Loop Liquid Cooler with two 240mm radiators cooling Intel's i9 7980XE. Two nVidia RTX 2080Ti Founders Editions in SLI, 64GB of Kingston HyperX Fury DDR4 memory, and four Samsung 850 PRO 1TB solid state drives in RAID.
Delid and Direct Die Cooling IHS was removed from the 7980XE with Der8auer’s Delid Die Mate X. Silicon was then scraped off using a credit card and polished to a shine with paper towel. This was particularly time consuming as it was difficult to clean around the exposed contacts on the PCB. The contacts were then covered with liquid electrical tape. This is not usually necessary however, direct die cooling requires a generous amount of liquid metal to achieve good contact with the heatsink. After about three months use, some corrosion occurred to the die of the 7980XE. You can see very slight imperfections which I assumed was from impurities in the die.
Bare die of the 7980XE.
Der8auer’s Direct Die Frame, with galium applied to the CPU die.
Slight imperfections on the die from the galium.
1mm of clearance between the fittings and the power supply.
Expanded BeQuiet Silent Loop Liquid Cooler
Modification Process Expanding the liquid cooler required draining the cooler through the fill port on the CPU/Pump block. The fittings from the block were then removed and replaced with Bitspower 3/8 ID 5/8 OD compression fittings. The thread did not have to be modified. Two 240mm Hardware Labs GTS Xflow radiators were installed, and all components connected using EK ZMT tubing. The line between the CPU/pump block had an EK-QDC fitting for installing and removing a reservoir. This was used to fill and bleed the loop, and was then later removed using the quick disconnect fittings.
BeQuiet pump/CPU block with EKWB ZMT tubing and Primochill Anti Kink Coil.
With side panel on, the ZMT tubing isn’t visible.
Benchmarks and Overclocking
All benchmarks were completed in this system with the 7980XE overclocked as high as 5.1GHz 1.425V. There are no graphical benchmarks as both graphics cards perform just above their rated specifications due to the 1800MHz 850mV undervolt.
HWbot Submissions PiFast score - Novice League 12sec 600ms with Intel Core i9 7980XE at 5100MHz
Four 3D printed brackets with ~7mm spaces were used to stack the drives on top of one another. The stack of drives were then attached to the Sliger SSD bracket for mounting into the Cerberus X case. The 3D printed brackets can be purchased online from Ryan3D. Be sure not to over tighten the screws into the brackets as they will split.
Four Samsung 850 PRO 1TB SSD stack in RAID5 array.