right iv managed to kind of sort this out by connecting my sad drive to my mac book air and restore the ssd drive back to when it worked, after a few hours i have to to a semi stable state. when i restart my mac pro takes a couple of tries to start up, once logged on this is the kernel panic report i get.
Anonymous UUID: EF71E86D-CD9F-46C1-47B9-CF4756A66EDD
Sun Mar 22 17:29:04 2015
*** Panic Report ***
panic(cpu 0 caller 0xffffff8001c1e80a): Kernel trap at 0x0000000000001202, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000001202, CR3: 0x000000055a483000, CR4: 0x0000000000002660
RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0xffffff8258652fb0, RDX: 0xffffff8258652fb4
RSP: 0xffffff8258652f68, RBP: 0xffffff8258652fe0, RSI: 0xffffff80286d2008, RDI: 0xffffff8205e87008
R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0x0000000000000000, R11: 0x0000000000000002
R12: 0xffffff80286d2008, R13: 0x0000000000000000, R14: 0x0000000000000000, R15: 0xffffff8205e87008
RFL: 0x0000000000010246, RIP: 0x0000000000001202, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000001202, Error code: 0x0000000000000010, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff8258652c10 : 0xffffff8001b3a811
0xffffff8258652c90 : 0xffffff8001c1e80a
0xffffff8258652e50 : 0xffffff8001c3a443
0xffffff8258652e70 : 0x1202
0xffffff8258652fe0 : 0xffffff7f83d515a2
0xffffff8258653060 : 0xffffff7f83abc727
0xffffff82586530f0 : 0xffffff7f839f57bc
0xffffff8258653150 : 0xffffff7f83ab36e8
0xffffff8258653170 : 0xffffff7f839f4981
0xffffff8258653210 : 0xffffff7f839dfe99
0xffffff82586532c0 : 0xffffff7f83a17084
0xffffff82586534d0 : 0xffffff7f83a181f1
0xffffff82586535b0 : 0xffffff7f83c343d5
0xffffff8258653610 : 0xffffff7f83c01ced
0xffffff8258653660 : 0xffffff7f83c04e7d
0xffffff8258653690 : 0xffffff7f83c2007d
0xffffff8258653730 : 0xffffff7f83c16111
0xffffff8258653970 : 0xffffff7f839aca64
0xffffff8258653a00 : 0xffffff7f82c7a997
0xffffff8258653b30 : 0xffffff7f82c7999b
0xffffff8258653ba0 : 0xffffff7f839add20
0xffffff8258653be0 : 0xffffff7f82c438d0
0xffffff8258653c70 : 0xffffff7f82c3b8ac
0xf
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 2.8 GHz, 20 GB, SMC 1.25f4
Graphics: NVIDIA GeForce GTX 980, NVIDIA GeForce GTX 980, PCIe, 4095 MB
Memory Module: DIMM Riser B/DIMM 1, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, -
Memory Module: DIMM Riser B/DIMM 2, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, -
Memory Module: DIMM Riser A/DIMM 1, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser A/DIMM 2, 1 GB, DDR2 FB-DIMM, 800 MHz, 0x80AD, 0x48594D5035313241373243503844332D5335
Memory Module: DIMM Riser B/DIMM 3, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80CE, 0x475234474633365432353634383030494C34
Memory Module: DIMM Riser B/DIMM 4, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x475234474633365432353634383030490000
Memory Module: DIMM Riser A/DIMM 3, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80CE, 0x475234474633365432353634383030494C34
Memory Module: DIMM Riser A/DIMM 4, 4 GB, DDR2 FB-DIMM, 800 MHz, 0x80CE, 0x475234474633365432353634383030494C34
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x87), Broadcom BCM43xx 1.0 (5.10.131.36.16)
Bluetooth: Version 4.3.1f2 15015, 3 services, 26 devices, 1 incoming serial ports
Network Service: Ethernet 1, Ethernet, en0
Serial ATA Device: Crucial_CT256MX100SSD1, 256.06 GB
Serial ATA Device: Crucial_CT128MX100SSD1, 128.04 GB
Serial ATA Device: ST3500413AS, 500.11 GB
Parallel ATA Device: OPTIARC DVD RW AD-7170A
USB Device: P9223 Slim
USB Device: Vendor-Specific Device
USB Device: Bluetooth USB Host Controller
FireWire Device: built-in_hub, Up to 800 Mb/sec
Thunderbolt Bus: