Please keep in mind that the Intel® SSD DC P3600 Series are PCIe, NVMe drives. They use different technology than your previous SSD, so the configuration that worked to boot the OCZ drive may not work with your new SSD.
Booting from the Intel® SSD DC P3600 Series was tested with current generation systems, and requires a system BIOS configured to enable uEFI* version 2.3.1, and support NVMe boot. We strongly advise you to contact the Computer Manufacturer Support to confirm that your server meets the requirements mentioned in the Intel® Solid-State Drive Data Center Family for PCIe* P3700, P3600 and P3500 Series – Installation Guide.
Also, in the following document you will be able to find some examples of the BIOS settings used for motherboards with Intel® Z97 Chipset and Intel® X99 Chipset:
We would like to remind you that the Intel® Solid-State Drive Data Center Family for PCIe Driver is required during the Windows installation process in order to use the Intel® SSD DC P3600 Series as boot device.