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52948
April 29th, 2013 03:00
DELL 790 Mini-tower not booting when uSB keyboard mouse is plugged
I have Dell 790 mini-tower PC, the pC does boot until all USB devices are unplugged. it shows this message:
Alert! Air temperature sensor not detected.
Alert! CPU 0 fan failure
Alert! Hard drive fan Failure
Alert! Keyboard initialization failure.
To continue press F1 key
To change setup option press F2 key
To run onboard diagnostic press F5 key
I tried PS2 keyboard that didnt work at all, even the windows starts
I removed all USB devices, it booted succesfull; then i plugged in USB keyboard and mouse it worked. everytime i started my PC i have to do same procedure.
I cannot reset bios settings are reset it. because i am not able to do anything on startup
Please assist me
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brianb.bowler
1 Message
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February 12th, 2014 08:00
I have Dell Optiplex 790 Desktop PC, the PC does boot until all I unplug the USB keyboard and replace it with a PS2 keyboard.
it shows this message:
Alert! Air temperature sensor not detected.
Alert! CPU 0 fan failure
Alert! Hard drive fan Failure
Alert! Keyboard initialization failure.
To continue press F1 key
To change setup option press F2 key
To run on board diagnostic press F5 key
None of the keys respond on initial boot.
I removed the USB keyboard, and replaced with a PS2 keyboard and it booted successfully; then i plugged in USB keyboard and it worked. every time i started my PC i have to do same procedure.
I cannot reset bios settings are reset it. because i am not able to do anything on startup
Please assist me. There are other users of this PC that are not able to go through this procedure at each boot.
Petrusgalli
1 Message
0
August 17th, 2016 07:00
Change the CMOS battery.
Afterwards the error messages as all the strange problems with keyboard unplugging/plugging disappeard with our Optiplex 790 client.