LSI Raid card Drop out

[ace2k8]

Just a question I would like to get answered. I have a MegaRAID SAS 9260CV-4i that has been dropping out when i put load on the drives. I can reboot and it will appear as nothing happened but as soon as i put a real load on these drives the raid card just drops out of the pc.  Its running a Raid 6 with 4 WD Red 1TB.   As far as spec my motherboard is a Asus Maxmus VI Hero.  I do have 2 XFX 7970's in crossfire taking up most of the PCIe lanes. I an taken out one of the GPU's and ran the Raid Card in the 16x slot and disabled the 4x lane to see if that was the case but i am still having the same problem. I know the Raid Card is a 8x PCIE 3.0 but it should run fine in the 4x slow with slower performance. I am ok with that because its only a storage drive i run no programs off it. Programs stay on the 4 SSD's in raid 0 off the motherboard chipset. 

[gramzon]

The card physically drops out of the PC?! have you screwed it in to place lol....

[ace2k8]

If it was that simple I wouldn't make a new post lol. no it drops to Windows Volume. I can still see the card if I pull up AIDA64 but the drive is not accessible to Windows

[IdeaStormer]

I'm thinking it wants its 8x lanes and since it only has 4x its not doing its job. Does the documentation list anything on running it in reduced PCIx lanes? Such a high end card is going to need if not demand its lanes, especially when you tax it.