By your Description you are after a BIOS Password that has been added to the system so you should ask your Uncle what Password was inserted here.
If you are unable to recover the Password from your Uncle you need to take the unit to a Dell Authorized Repairer and Pay for the Fix which may require a New M'Board depending on what has been done to the system. Sorry but I can offer no more because this is not something that is accepted on a Public Forum Password Cracking which can help Criminals to steal your MB and on sell it in working condition.
There is a police agreed to by the TR Peers and I'll insert it here for your understanding.
[i]TR members do not assist password recovery. Do not respond to this thread
The members of TechRepublic - A Resource for IT Professionals, will not assist anyone in the recovery of lost passwords. You may have a legitimate reason to recover a password. However, we cannot verify your motives and will therefore not assist anyone in what may be an attempt at gaining unauthorized access to a computer system. Due to the open nature of this forum, any assistance given to help circumvent security measures, even for legitimate purposes, would be available for unscrupulous individuals to use for illegitimate purposes. This is a risk that we the members of TechRepublic will not take. Please do not ask questions of this nature on TechRepublic.
If you have a legitimate need to circumvent a password scheme, please contact the vendor for the software / hardware and request their assistance. E.g. Windows XP password recovery issues should be taken up with Microsoft's technical support, Phoenix BIOS password recovery issues should be taken up with Phoenix Technologies, etc.. To those viewing this post: Please DO NOT respond any further to this thread.
This template has been released under the GNU public license and you are encouraged to use it as a standard reply for questions of similar nature, provided that you make any modifications available to other users.
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