I had a similar issue with the 1st install of the snitch adapter. Reseating the Apple Blade SSD resolved the issue. I have a couple 2 lane sticks and a pile of Sintech cards and will give ti a try over the weekend. Aside from the initial install hiccup, the sintech solution has been rock solid.
Thanks for looking into it.
I have a 128 GB Sandisk blade pulled from an iMac with Fusion drive and a second generation Sintec card with heatsink in pci slot 2 right over the original Radeon 5870.
Besides the cold boot issue the set-up seems stable. It is annoying though to sacrifice a SATA port just for the cold boot (and reboot) system volume.
Another theory: It could be a disk utility bug related to cloning system drives.
I cloned the volume via Recovery HD 10.10.1 and renamed the volume, repairing permissions, PRAM reset, etc, after...
Somehow the two system volumes seem still connected. The Spotlight privacy settings are still shared for example. If I set a volume to be ignored on the blade ssd etc...
I have Bootcamp volume in Bay 4 with latest Bootcamp drivers (5.1)
Best regards,