STH posted Supermicro 4028GR-TR 4U 8-Way GPU SuperServer Review
A quote from the article:
Today we are taking a look at one of the largest single systems STH has ever reviewed. The Supermicro 4028GR-TR GPU SuperServer houses up to 8x GPU/Xeon Phi, dual Xeon E5 processors and 24x 2.5? drive bays all in a single 4U chassis. Recently we reviewed one of Supermicro GPU/Xeon Phi SuperServers, namely the 1028GQ-TRT which is equipped with 4x AMD FirePro S9150's in a compact 1U server case. See our Supermicro 1028GQ-TRT Quad GPU 1U SuperServer Review. This is essentially this is the larger sibling.Supermicro 4028GR-TR 4U 8-Way GPU SuperServer Review @ STH
Like we saw with the Supermicro 1028GQ-TRT the Supermicro 4028GR-TR offers direct connection direct CPU connection to GPU's through 8x PCIe 3.0 x16 slots to achieve low latency and reduce power consumption. This system supports up to 8x Nvidia Tesla cards including K80 dual-GPU accelerators up to 300watts, AMD FirePro Server GPUs or Intel Xeon Phi cards. Installing GPU's is simple and no complex cabling or repeaters are required.
Storage provisions include front mounted 24x 2.5? hot-swap bays. Network needs are supplied with 2x 1GBase-T LAN and remote management ports, in addition 2x PCIe 3.0 x8 (in x16) and 1x PCIe 2.0 x4 (in x16) slots are available for expansion cards in the back of the server.