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74 U41243-J-Z156-1-76
Property and data protection
Boot sequence control
The BIOS security functions determine the boot devices and the boot sequence.
They also control the write function for the floppy disk drive in secure mode. The
normal boot sequence starts with the floppy disk drive, followed by the hard disk
drive, the CD-ROM drive and the network.
Boot without keyboard
The server can boot with or without the keyboard. Before it boots, during POST,
BIOS automatically detects and tests the keyboard if one is present.
Locking the power and reset buttons
The power and reset buttons on the front panel are locked when the server is in
secure mode. To terminate secure mode, enter your user password.
Floppy disk write protection
If floppy disk write protection is enabled in BIOS Setup, the floppy disk drive is
only protected while the server is in secure mode.
Blanking the screen
If screen blanking is enabled in BIOS Setup, nothing is displayed on the screen
when the server is in secure mode. Entering your user password terminates
secure mode.
If the administrator sets the Password Clear switch on the I/O board to the clear
position (ON), BIOS clears the administrator and user passwords (see the
section “Changing the switch settings” on page 39). BIOS also attempts to clear
the EMP password. If the FPC is not present or not fully functional, BIOS
continues after a time out.