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July 22nd, 2025 01:28
XPS 8940, preboot screen, how to disable?
I just finished cleaning the inside of the case of my XPS8940 and when I restarted the PC i'm now greeted with a PREBOOT CHECKUP screen----I've NO Dell Support software on my machine and this is the first time in the 3years of ownership I've seen this---I clean th inside of my case every
I've NO idea how to stop this other than holding the ESC key when I power-up...
I've tried the following with NO success
FN key is not sticking
Secure Boot set to AUDIT MODE
Auto OS Recovery Threshold set to OFF
Support Assist OS Recovery is UNCHECKED
BIOS Connect is UNCHECKED
How do I get rid of this....No laughing please
FWIW-
Once booted up the PC works faultlessly
TIA
LOU
No Events found!
Lulu95
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July 25th, 2025 20:41
OK
Poblem SOLVED
I AGAIN re seated the wires for the case and CPU fans
Rebooted the machine
Un checked the Support Assist OS Recovery in the BIOS
Rebooted
NO PRECHECK screen
Did several restsrts and NO issues
Interesting how there was NO feedback from anyone on this forum...Most interesting
Lulu95
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July 25th, 2025 15:47
NO one ?????
FWIW-
I've reloaded the latest firmware (2.27.1) that was installed back in late June-NO change
Lulu95
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July 26th, 2025 16:08
I replaced the CMOS battery and hence re-set the BIOS back to factory settings---
Again there's no check screen when I reboot.
I'm guessing the issue was a faulty fan connection for the case fan
ispalten
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2.3K Posts
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July 26th, 2025 19:02
@Lulu95
Well, not really. First you'd have to have someone who had the problem or knowledge to fix it.
Secondly, the 8940 is 'old'... a 2021/2022 product.
Well, I have an 8940 but never hit the problem.
I would have replied though to check all connections as you might have 'jiggled' some during the case cleaning. It looks like you did that and solved the problem.
Again, I'd assume not many hit the problem you did.. and failing batteries can cause a myriad of different symptoms as well. That, and lose connections or heat related issues are common.
Glad you got it solved. I marked your answer solved... so the next time someone searches for your old problem they'd find 'an' answer.
Me, my attention is now on my wife's new Dell Pro EBT2250.
Lulu95
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July 26th, 2025 19:56
THANK YOU for your comment--I understand fully
Good luck with the new toy!