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June 11th, 2026 15:58
Tower Plus EBT2250, POST error
When my computer updated for BIOS firmware 1.16 on June 2, the computer shut off. When turned back on it will not make it through the POST sequence. It will give an alert saying that the CPU is not recognized and to restore it the 65W CPU. I made no hardware adjustments it was just an automatic update. In diagnostics it has no errors and recognizes off bios in the overview section. I've now updated to 1.17 but the issue still persists. I cannot boot windows. The Assist OS tool also freezes on the blue screen with no words and just shuts down. Can anyone think of what could have happened or causes. If I cannot get Windows Recovery to boot from recovery what are my next steps?
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redxps630
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June 11th, 2026 19:44
Re: When my computer updated for BIOS firmware 1.16 on June 2, the computer shut off. When turned back on it will not make it through the POST sequence.
sounds like that first bios update did not complete successfully.
Re: I've now updated to 1.17
did you successfully complete the second bios update from the one-time boot menu?
if yes but pc can not POST, consider downgrade BIOS to an earlier stable version
By default, the ON option is enabled.
(edited)
Ben Mihalko
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June 11th, 2026 22:30
@redxps630
yes 1.17 updated successfully. In the log 1.16 said installed successfully as well. I don’t have the exact time stamps memorized but it updated to 1.16 at say 12:01.50 and the computer shut off and gave the error code at 12:02.05. It was very short.
with that said. I tried downgrading to 1.15 since I know it was working. However, an error comes up saying downgrade is not allowed for security risks. I also tried 1.14 and 1.13 both had the same error. I also checked to make sure I could downgrade by having that enabled.
dell service is saying it’s a windows issue but I don’t quite understand how they know that without the machine posting.