Frickler schrieb:
> Dann ist das
> BIOS im Auslieferungszustand.
Für sicherheitsbewusste Firmen gab es schon Notebooks, bei denen ein
Zugriff nur durch den Kundendienst des Herstellers möglich war, und
sogar welche die für immer tot waren. Aber nicht bei Z420.
Aus Z430 Service Manual:
Resetting the password jumper
Use the following procedure to disable the power-on or setup password
features and clear the power-on and
setup passwords.
WARNING! To reduce the risk of personal injury from electrical shock and
hot surfaces, be sure to
disconnect the power cord from the wall outlet and allow the internal
system components to cool before
touching them.
CAUTION: When the computer is plugged in, the power supply has voltage
applied to the system board,
even when the computer is turned off. Failure to disconnect the power
cord can result in damage to the
system.
CAUTION: Static electricity can damage the electronic components of the
computer or optional equipment.
Before beginning these procedures, be sure that you are discharged of
static electricity by briefly touching a
grounded metal object.
1. Access the jumper:
a. Shut down the operating system, turn off the computer and external
devices, and then disconnect
the computer power cord and external devices from power outlets.
b. Disconnect any external devices.
c. Verify that the AC power cord is disconnected from the power outlet.
d. Open the workstation.
e. Locate the password header and jumper.
The password header is E49. The password jumper is blue so it can be
easily identified.
2. Remove the jumper from pins 1 and 2. Do not lose the jumper.
3. Restart the computer:
a. Close the workstation.
b. Reconnect the AC power cord to the power outlet.
c. Turn on the computer and wait for the workstation to display the HP
splash screen.
4. Repeat step 1.
5. Replace the jumper on pins 1 and 2.
6. Repeat step 3, except press the f10 key during startup to access
Computer Setup (f10) Utility.
7. Use the setup utility to create new passwords.
Georg
