After posting in here:
a guest advised me of a known Optical Bug.
So for taking off the Pioneer DVR-212, the 10.1.0.1008 driver installs & works. Once the Pioneer DVR-212 is replaced to the Matrix cluster, no boot again.
Obviously a bit of a serious bug in the Intel driver & the first I have ever experienced in 15 years of Intel useage. First time for everything I guess....
Anyone know of a Beta greater than 10.1.0.1008 or release date for an official update?
Wondering if this is a knock on thing from the Sandybridge fiasco?
This gets worse & is not as clear cut as I thought it was....
If I run the Pioneer Optical drive on one of the GigaByte headers & then install 10.1.0.1008 drivers, sure, the CD/DVDROM works fine, but when writing a large file to any partition on either the 2TB Seagate or the 3 x RAID0 stripe, as soon as the process completes, the computer goes into BSOD.
Reverting back to IRST 220.127.116.114 and everything is fine with no BSOD & with the Pioneer Optical Drive still on the Gigabyte SATA header. I already know if I shove the Pioneer back onto the Matrix Headers with IRST 18.104.22.1684, all will still be good as it is with the IRST 22.214.171.1249 drivers....
Logic would dictate this is not a Pioneer bug, but an Intel one. I have used Pioneer Optical devices for the last 6/7 years & always on an Intel based rig without any issues in the slightest; 875 Canterwood, P35, P45, X48 & finally X58 to date.
Having witnesed atrocities like this on AMD/Other Chipset based rigs of many moons ago, seeing this on Intel architecture in this day & age is rather sad to say the least.