IT mode firmware isn't a supported firmware. I unfortunately don't know anything about it and haven't seen the BIOS for it. I really can't comment on it.   As to the controller, you could run hardware diagnostics or export the controller log and review it for errors, but exporting the log would require OS access. As to the description, it sounds like the H700 may well be bad, with the other controller working properly, I would suspect the controller as being the issue.
Hi there, My apology that I am still talking about T610 & h700 in 2020. Trying to repurpose an old T610, original PERC H200i works find in the storage controller card slot. Got a H700i (DP/N 0XXFVX with 512M, know nothing about battery if that's even a question) from ebay to replace the H200i which doesn't support drive >2TB. When H700i goes into the storage card slot, booting goes all the way passes NICs then shows "PCIe training error integrated RAID, system halt!". Move H700i to PCIe slot 2 and put H200i back to storage card slot, system boots up with no hassle, run server service, current hardware inventory in UEFI 2.1 shows no entry of H700i at all. Is there any driver/firmware should be updated? I'd like to flash the H700 if there is a way. Any advice is greatly appreciated. T610 platform is: BIOS 6.6.0 iDRAC6 2.92 LifeCycle Controller v1.7.5 OS Driver Pack 15.04 A00 Dell 32bit Diagnostics v5162A0 Primary Backplane Fireware Revision 1.09 (seen on POST but not listed in platform information) When H200i is in, system shows MPT2BIOS-7.11.10.00 (2011.06.02)
H700i on T610 gets PCIe training error integrated RAID