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May 18th, 2025 21:51

DELL Precision Tower 3420 Bios Recovery HELP ! ! !

I updated the BIOS (Precision_Tower_3420_2.33.0) of Precision Tower 3420 it bricked the computer. After this update the computer's power switch LED blinks 3 amber + 6 white with no display when powered on. I talked to Dell Tech support and tried Ctrl+Esc key-sequence to get to the bios recovery but nothing worked. They suggested replacement of the motherboard (but also mentioned that Dell does not manufacture my computer's motherboard).  

I need the bios recovery file :/ because I want to reinstall with a usb flash drive

10 Elder

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28.6K Posts

May 18th, 2025 22:51

https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=3fn2k

That said, boards for this model start in the $35 range.

1 Rookie

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3 Posts

May 18th, 2025 23:57

I downloaded "Precision_Tower_3420_2.12.0.exe" from this link. How do I install it on my computer? I put it on a fat32 formatted USB stick, but how do I run it?

Thank you very much for your interest and attention.

10 Elder

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28.6K Posts

May 19th, 2025 00:04

At a command prompt locate the file you downloaded and type its name as above with the /writeromfile swtich.

Precision_Tower_3420_2.12.0.exe /writeromfile 

3 Apprentice

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660 Posts

May 20th, 2025 09:56

@omfaos​ 

Hi

Hope this helps...

IT IS NOT AN ABSOLUTE SET OF INSTRUCTIONS.

MERELY MY THOUGHTS ON HOW2.

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