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We have a Dell PowerEdge T340 with Server 2016 Standard that cannot boot after a power cut. The system was connected to a backup UPS but was without power for long enough that it ran out, and the system shut down. The following message is displayed -
Boot failed: pxe device 1: embedded nic 1 port 1 partition 1
It's set up as RAID 1, and I removed both hard drives and tested them in a caddy; both look fine.
I ran the system diagnostics and got the following code. I've also attached a screenshot of the error.
Error : 2000-0251
Validation Code: 122359
There appears to be an error with the boot partition, but I'm unsure how to repair it. I've tried using the OS disc to run a repair and have also tried bootrec /fixmbr, bootrec /fixboot, and bootrec /rebuildbcd.
I'm not sure where I can pinpoint the problem. Any guidance is greatly appreciated.
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see image below

Do you have a bootable flash drive with the Windows installation files on it?
Boot that and go into Repair This Computer.
Choose the commandline option.
Start DiskPart
Lis DisPost the list.
You may need to install the F6 driver for the RAID controller in order to get the RAID 1 drive to show up.
Ok, the drive is not listed. As you suggested, I'll look into installing the F6 driver for the RAID controller.







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Yup. Need the F6 driver.
To provide further information, the CMOS battery was dead and has been replaced. Am I right in thinking that the BIOS settings would have been reset to factory default once the power was out?
yes, that is what normally happens

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I can now see the drives if I boot the USB drive with Windows. Also, if I run “Diskpart”, it now lists the disks—still, the same message when I try to boot up the system.


you have a recovery partition - you could use that - if you have a good backup
Sorted. It was a BIOS settings issue.
I set the board to RAID and changed the boot option from UEFI to BIOS, and that was it.
Thank you.






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Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.