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Dell Latitude c800 keyboard controller 32khz error

I recently replaced the motherboard on my Latitude c800 and now every time i boot i get an error saying: "keyboard controller 32khz error. Remove all power"
I tried 3 new power adapters, replaced the RAM, removed the keyboard, but still getting that error.
Any suggestions?
Also the service tag of that laptop is: 51x9x01

Thanks in advance.
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1 Solution
Gary CaseRetiredCommented:
32KHz is a common clock frequency for the keyboard controller CPU that's used to handle keyboard & mouse traffic and to act as the boot device [this CPU also monitors the power switch and is what controls the actions of the soft power switch and forces a reset of the main CPU when appropriate.

I don't know for sure what's causing the error message you're getting ... but I suspect it's a bad keyboard controller chip or clock generator on the new motherboard.   It MAY be a function of an incorrect CMOS parameter ... perhaps that's why the "Remove all power" message.   If that's the case, I'd truly remove ALL power => unplug the laptop; remove the battery; and remove the CMOS battery from the motherboard.   Not sure if it works with the C800, but on many laptops you can drain the CMOS by holding the power switch in for 60 seconds with no other power applied (unplugged & battery removed).

If that doesn't help, then there's not much you can do about it except get another motherboard.

Gary CaseRetiredCommented:
... by the way, if holding the power switch for 60 seconds doesn't drain the CMOS, you can simply remove the reserve battery for a couple of minutes:  http://support.dell.com/support/edocs/systems/latc800/sm_en/html/ch2.htm#999641
Gary CaseRetiredCommented:
GTKINC => Any follow-up questions on this?   As I noted, if clearing the CMOS doesn't help, there's basically nothing you can do except replace the motherboard.   (or just live with it ... is it working okay otherwise ??)
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