Mac Pro 3,1 (early 2008) RAID card hangs at startup

Hello,
I have a Mac Pro 2.8Ghz Quad Core (early 2008) with 10GB RAM and 512MB VRAM.
I have noticed that the Mac Pro RAID card hangs at startup for RAID volumes. 
It seems to start okay with a single boot drive (have used both WD Raptor 150GB 10K and Seagate 'factory' 320GB 7200rpm as boot drives...)
But the RAID 0 array using two factory 1TB WD 7200rpm is what seems to hang at startup.  I have run Disk Warrior, Disk Utility and RAID Utility and found no major errors...
Any suggestions?  Have already replaced the RAID Card battery with OEM part.
Thanks!

Say good-bye to the Apple Pro RAID card. It started its life as a $999 card to support SAS/SCSI and/or RAID5.
Then the problems with 2.5TB drives, battery, and does it really do something and add to your system.
I would use SoftRAID and create a 3-drive mirror of 2TB drives instead.
And an SSD for the system.
Seems like those are some very old drives.
I have a lot of the 150GB 10K VR drives, and some 300GB along with older 74GB and a couple of the Raptor series. Loud and while solid I would use for spare boot drives, clone only.
Backup your data, pull the RAID card, and restore to the drives. And clone the system onto a 250GB $109 SSD. $139 buys a 400MB/sec writes and 800MB/sec reads Samsung PCIe-SSD XP941. None of my SCSI 15K drives would come close.

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