- Jul 31, 2012
- HD4600 / RX 570
- Mobile Phone
HP EX920 NVMe Drive + Silverstone ECM 20Here are the Amazon and Newegg links to the adapter and NVMe SSD. Cost: $67.98 + tax.
HP EX920 256GB NVMe drive (smallest size they make)
Silverstone ECM20 PCIe to NVMe Adapter card at Amazon.com
The EX920 gets installed into the M.2 NVMe part of the adapter.
The SS adapter goes into your PCIe x4 slot. That's the one that is black colored, and appears to be a x16 but isn't. It's in the exact same place on the SFF motherboard if you own that form factor. The x4 slot in your Optiplex only meets PCIe 2.0 standards and not 3.0 like the x16 slot. Use the blue colored x16 slot if it is open. Gives the fastest speeds.
Boot from a Sata SSD with Clover on it, then choose the NVMe drive at the Clover boot menu screen. Read speeds should be anywhere from 2.2 to 3.0 GB/s with the EX920. This also requires the Clover NvmExpressDxe-64 driver be installed to your drive that has Clover installed on it's EFI partition.
For a general use CustoMac they are overkill. Your boot times will speed up but you won't see much difference surfing the net, watching videos, checking email etc. It's really a waste of money if you already have a 2.5" Sata 3 SSD for a boot drive and don't work with very large video and photo files or move a lot of data on a regular basis. Remember that the new Samsung 970 EVO Plus is not macOS compatible. The regular 970 EVO (non-Plus) will work.