In a HP Workstation Needs to be interleaved in motherboard slots: example: led with RDIMM in 1st slot then DCPMM in 2nd slot. Lenovo ThinkSystem (V2 era Ice Lake):SR630 V2, SR650 V2, SR670 V2, ST650 V2 (and a few edge variants).
Intel Optane PMem 128GB DDR4 3200MHz 200 Series ECC RDIMM Memory NMB1XXD128GPS
Intel Optane Memory SSD M.2 2280 16GB PCIe 3.0 3D Xpoint NVMe
MEMPEK1J016GAH - Intel Optane M10 16GB M.2 2280 PCIe 3.0 NVMe 3D XPoint
HP Probook 640 G5 14" Notebook - Core i5 i5-8365U - 16 GB RAM - 512 GB SSD - Natural Silver - Windows 10 Pro 64-bit - English Keyboard - Intel Optane Memory Ready - 15.50 Hour Battery Run Time
Intel Optane P4800X Series 750GB NVME U.2 PCIe 3.0 2.5'' SSD SSDPE21K750GA
Intel Optane SSD DC P5800x 1.6TB U.2 2.5''NVME PCIe SSDPF21Q016TB 95-100% Health