BIOS Quick Reference • CC5-RAVE
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EKF Elektronik GmbH * Philipp-Reis-Str. 4 * D-59065 HAMM (Germany)
Tel. +49 (0)2381/6890-0 * Fax. +49 (0)2381/6890-90 * E-Mail [email protected] * Internet http://www.ekf.de
Password Configuration
This screen allows to define a password for the system, that is requested anytime before
proceeding to either the BIOS Setup or the OS boot, if password checking is enabled. This
feature therefore adds some level of security to the system in preventing unauthorized people
from altering the BIOS setup parameters and starting the OS.
The factory default password is ‘none’ (simply enter <CR>, if password checking has been
enabled without prior defining a user password). The option ‘Change Password’ allows to define
a user specific key.
If you can’t remember the password, there are two possible solutions to this problem: Either
enter the debug mode (the integrated debugger can be invoked prior to entering the unknown
password). Now alter the content of CMOS memory cells at the addresses 39h and 3Ah to 0
(this resets the password to 0000h = ‘none’). When resetting the system, a CMOS Bad
Checksum situation is detected, which causes the BIOS to replace the CMOS parameters to its
factory defaults.
The second, harder way would be to carefully remove (soldering iron needed) the accumulator
from the CC5-RAVE, which is responsible for data retention in the CMOS RAM. After a few
seconds, insert (solder) the accumulator again. When switching on the system, the BIOS detects
a checksum failure due to deleted data and installs the factory default parameters. All previous
settings will be gone lost, e.g. date and time. You will have to reconfigure all BIOS settings now.
