Hi, a lot of questions you have here are actually best directed to sales.     2) Are the NVME drives connected to the PERC H745 or directly to the PCI bus? H745 is a must for the NVME & SAS mix but depending on how you build your system “24 x NVMEs only with no PERC controller “ can be used too.   There are 3 kinds for H745 controller as you can see from here. [URL] But again this is best directed to sales.   3) If the disks, are not Dell certified will they be blocked by PERC H755, or just a warning? It’s not blocked but the logs will say it’s non certified. It’s the same HDD model but Dell parts use their own firmware. Please be aware the support isn’t guaranteed for using non Dell parts.     Hope this helps and have a great one!
I have some questions that I don't find answers anywhere. In the new R7525, 16X 2.5 SAS/SATA + 8X 2.5 NVME without XGMI, &, PERC H755 for 2.5" x8, x10, x16 SAS/SATA or 2.5" NVMe Chassis 1) With "R7525 Motherboard with LOM V2" do we lose the 2 motherboard ethernet ports? 2) Are the NVME drives connected to the PERC H755 or directly to the PCI bus? 3) If the disks, are not Dell certified will they be blocked by PERC H755, or just a warning? 4) What are "ART" power supply? 1400W vs 1400W ART.   Thanks!  
R7525 Config Questions