- Joined
- Jul 12, 2016
- Messages
- 3,091
- Motherboard
- Gigabyte Z370 Gaming 5
- CPU
- i9-9900K
- Graphics
- RX 6900 XT
- Mac
- Mobile Phone
That's right. My GC-ALPINE RIDGE cards and GC-TITAN RIDGE cards are in a Netstor NA255A connected to my Mac Pro 2008. The Netstor did not come with a SATA power cable so I made my own. I usually only use the add-in cards for USB 3.1 gen 2. Occasionally I use them to convert DisplayPort to Thunderbolt. My cards aren't flashed and I haven't installed an SSDT. Only the GC-TITAN RIDGE cards work for PCIe tunnelling (after warm boot from Windows). One day I'll get into looking at Thunderbolt drivers in Linux, UEFI (github and my Gaming 7 motherboard), Mac DSDT/SSDTs (I have a MacMini 2018), macOS, etc.
You likely could flash the GC Titan ridge with DSM2 modified firmware and SSDT sick it in slot 4 of your 2008 Mac Pro and have it working. I do not know to what degree but that is what got this whole Firmware flashing thing going was DSM2 modified firmware for older Mac Pros.