Guys I have problem trying to do a fresh Mojave install on a OWC 6G SSD.. The card is plugged in a PCI-E x4..But it don't matter if its in a PCI-E X 16 (Still the same problem) When booting off the USB drive.. Disk utility doesn't see the SSD drive.. Also, I tried to boot from a normal 3.5" hard drive (which has Mojave installed). My mac will boot-up with the 3.5" drive. However, when I fit the SSD (For cloning). The Mac Pro 2008 won't boot-up.. Whats going on.. I was hoping to clone the hard drive to my SSD first.. But since that won't work I tried to do a fresh install to the SSD (As you know) But the SSD is not seen, so I can't format it..