The following links may help. It would appear to be an Intel Rapid Storage based error.

https://www.thewindowsclub.com/driver_irql_not_less_or_equal-iastora-sys

https://answers.microsoft.com/en-us/windows/forum/all/iastorbsys-blue-screen-on-dell-t5810-windows-10/b9c94cb6-994d-4e78-862e-4459211f97a8?auth=1

https://www.solvusoft.com/en/files/bsod-blue-screen-error/sys/windows/dell/dell-precision-n-series-system-software/iastor-sys/

hello, 

we hear in my company have been fighting this for a while with no luck.  the only thing that kind of fixes it is to wipe it out and start over.  i am getting tired of doing this.

is dell aware?  ive called tech support with no luck.

i can't be the only one.

dom

I have had the exact same problem. I originally had Win 7 Pro and recently upgrade to Win 10. I was hoping the upgrade to Win 10 would fix this but no luck!! Probably reboots from crashing 5x/week.

i can't believe there is no fix for this. how do i roll back my bios update, i got all sorts of problems once i updated my bios.  dell pushes the bios update to crash the computer to make you pay for help it seems

I wasted this past weekend trying to resolve this problem of incompatibility with the intel driver and windows 10. I was actually trying to move my system drive from RAID to AHCI but I could never get it to boot, so I went back to square one with a system backup I made before trying any of this using AOMEI standard (free) to make a Windows PE CD, as I couldn't boot the system. I got it back up under RAID.

The Solution: I haven't tested this in use but have high confidence this will resolve the BSOD as I found this solution elsewhere on the internet with good indication its working for others and it makes since too. The iastorb.sys is an element of the AHCI driver and only used for the SATA CD/DVD optical drive. Physically DISCONNECT THE OPTICAL DRIVE SATA cable from the drive (or motherboard - from drive is easier)! The iastorb.sys won't be loaded when you boot and as its not loaded, it can't cause a BSOD!!!

If you need a dvd drive, get an external USB based one as that will not use the iastorb.sys. If you only need the drive on rare occasions, shut down, reconnect it temporarily for your needs but prepare for a then possible BSOD (which may or not happen) and then shut down and disconnect.

This problem is a windows 10 and Intel driver incompatibility issue as other non-dell systems can have this problem too with these particular versions combo. Why hasn't it already been resolved? read your software license.... they don't have to care.

Yep - exact same problem for 8-odd months now, crashing on me 3 - 4 times a day. Aaaaargh. I have unplugged the DVD drive - fingers crossed this will fix the problem. I'll report back in due course.

Really p..d with Dell for not fronting up with a better fix to a problem I'm sure they know about, that a lot of people have.

No crashed over the weekend - looks like disconnecting the DVD internally has worked.

Now rolling back Windows 10 updates as the latest updates crash my printer spooler...

@FaT_bOb we have certified the 5810 system as suitable for compatibility with all versions of Windows 10 released so far.

Looking at both the chipset and the IRST drivers, both are revision 1 with no other versions available.

Are the bluescreens before Windows or always within the Windows environment?

When updating the driver, have you tried uninstalling the driver completely before then reinstalling the current versions we have?

Your copy of Windows 10, have they been upgrades from Windows 7 or a clean Windows 10 install?

If it's a clean install have you used the Dell OEM version of Windows 10, or the Microsoft Windows media creation tool?

What BIOS are you currently running on the system?

Have you tried running the latest Intel RST driver directly from Intel themselves- https://downloadcenter.intel.com/download/28890/Intel-Rapid-Storage-Technology-enterprise-Intel-RSTe-AHCI-and-SCU-Software-RAID-Driver-for-Windows-

Alan

@FaT_bOb we have certified the 5810 system as suitable for compatibility with all versions of Windows 10 released so far.

Hmmm ok - funny there's a LOT of instances of Dell 5810 owners having this same problem, which has occurred 'recently', after Dell / Windows updates around the beginning of this year.

Prior to that, the system had been faultless since April 2017.

Looking at both the chipset and the IRST drivers, both are revision 1 with no other versions available.

Are the bluescreens before Windows or always within the Windows environment?

Always within Windows - never at boot-up.

When updating the driver, have you tried uninstalling the driver completely before then reinstalling the current versions we have?

Yep sure have. Its not the driver - its a compatibility issue. Plenty of other resources on the web that point this out, as lotsa people with the same hardware config are having the same issue.

Your copy of Windows 10, have they been upgrades from Windows 7 or a clean Windows 10 install?

I personally bought the 5810 from Dell with Windows 10 factory installed

If it's a clean install have you used the Dell OEM version of Windows 10, or the Microsoft Windows media creation tool?

Per above, Windows 10 factory installed by Dell

What BIOS are you currently running on the system?

Latest Dell BIOS - it's been updated

Have you tried running the latest Intel RST driver directly from Intel themselves- https://downloadcenter.intel.com/download/28890/Intel-Rapid-Storage-Technology-enterprise-Intel-RSTe...

Of course - first thing I did was go and update all drivers. The problem is that we can't roll back the RST driver - as with the old version, there were never any problems...

Alan