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Case open warning - unable to enter BIOS or Boot

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3 replies to this topic

#1 John123Fisher


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Posted 17 July 2017 - 12:30 AM

Hi guys,

When it came to turning my PC on today, I was greeted with a "Warning: Your Case is Open" warning.

I have the option of striking F1 to continue or pressing DEL to enter the BIOS screen. But the keyboard/mouse does not power up until past this screen, so I can't do anything. Everything was working fine until this morning, no changes were made.

Also, checking the obvious, my case is on and secure. There is no intrusion detection obvious to me but it could be hiding somewhere. It's a Foxconn A6VMX mobo.

Hell of a longshot but... any ideas would be greatly appreciated.


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#2 jwoods301


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Posted 17 July 2017 - 12:35 AM

Go into the BIOS, set the Case Warning to ignore, save the change and continue booting.


To re-enable the Case Warning, go back into the BIOS, turn it on, save the change and continue booting.

#3 SleepyDude


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Posted 17 July 2017 - 04:33 AM



The keyboard is USB or PS2?


If the keyboard is USB maybe isn't initialized yet try with a PS2 keyboard.

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#4 Guest_Joe C_*

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Posted 17 July 2017 - 07:08 AM

This board also has a intrusion connector ..



You can check that and get the specs from Foxconn here:


Look under Tech Support/Manual and you can download two .PDF's of everything about this board you need to know.


And as long as your looking at this board, and seeing as it is an older board it may be prone to capacitor failure. Check all the tops on the capacitors on this board to see if they are flat or expanded  (bubbled upwards) or any signs of leakages like these:


Edited by Joe C, 17 July 2017 - 10:29 AM.

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