PogFrog

Chiming in here because I was in a similar boat and this was the only search result I really found about Adaptec ASR 71605 with version 7.6.0 build 32136. I'm running in HBA mode and I was getting intermittant read/write issues, unraid wouldn't cleanly shutdown, write speeds would fall in the toilet, and after adding 10TB drives I started getting long (or hung) boots with a bunch of unsettling error: "efiblockioreadblocks lba out of range blockio-command failed" prior to the system post screen. I know the previous post said you can't rollback the firmware, but I took a gamble this evening and grabbed the older 7.5.0 (32118) build from 2018. Popped the .ufi file on an exFat 32gig USB drive, and I flashed it via the Bios > Onboard devices > maxView Storage Manager > Administration > Update Firmware menu. Thankfully it completed (and verified) successfully! So looks like you can rollback to previous versions (at least using this method). I have no idea where that mystery 32136 build came from from but it clearly has some issues because now those boot errors have completely gone, and the system boots just fine. It's still early days, and I haven't seen any slow downs, or had anymore disk errors (yet), but for anyone else with issues I can confirm you can at least rollback to 32118 without bricking anything.