I've been selling said Sun Oracle F40/F80 in my location for more than a year now. I recently received a message from a fellow member from our local trading site about him finding a way to flash the card properly so that it would run in full pcie x8 2.0 speed.
In this site below, you'll find the procedure.
Converting a Sun/Oracle F40/F80 Flash Accelerator to a LSI/Seagate Warpdrive | Kenneth Kasilag
Credits go to Mr. Kasilag for the procedure and to marcan for lsirec.
It took me 48 hours to confirm his findings, as I am not linux savvy. A day of reading, and asking around I was able to understand the instructions.
I hope this helps anyone out there who wants to convert their Seagate WarpDrive.