Dell 900 manual Disabling a Forgotten Password, 256 MB, Off, and Last State

Table B-13. PnP/PCI Options Screen Submenu Options (continued)

Option	Function
Graphics Aperture	Sets the graphics aperture size to 4, 8, 16, 32, 64, 128, or
Size	256 MB.
Plug and Play OS	Set to Yes (default) to allow the operating system to handle
	all Plug and Play operation. Set to No to allow the BIOS to
	handle the Plug and Play operation.
Reset Resource	Set to No (default) to retain ESCD data. Set to Yes to clear
Assignments	ESCD data.
Restore On AC/	Determines the system mode of operation after an AC
Power Loss	power failure. The selections are Power On, (default), Stays
	Off, and Last State.
Remote Wake Up	Set to Enabled (default) to activate remote Wakeup On LAN
	mode. Set to Disabled to deactivate it.
RTC Alarm	Determines the time and date for the RTC alarm function to
	resume. The selections are Time, Date, Time/Date, and
	Disabled (default). If set to Time, Date, or Time/Date, you
	can set the following additional options:
Resume Day	Sets the day for the RTC alarm function to resume. The
	selections are 1 (default) through 31.
Resume Time	Sets the hour/minute/second for the RTC alarm function to
	resume. The selections are 00 (default) to 59 for each field.

NOTE: The Glossary in the system Help defines abbreviations and acronyms.

Disabling a Forgotten Password

If you forget your user or supervisor password, you will be unable to operate your sys- tem or change settings in the system setup program, respectively, until you disable the existing password(s). Disabling the password(s) involves removing the computer cover and changing a jumper setting (twice) on the system board.

NOTE: You disable both supervisor and user passwords at the same time.

To disable a forgotten password, perform the following steps:

1.Turn off the computer and unplug it from the electrical outlet.

2.Remove the computer cover according to the instructions in “Removing and Replacing the Computer Cover” found in Chapter 2.

3.Remove the riser-board bracket according to the instructions in “Removing and Replacing the Riser-Board Bracket” found in Chapter 2.

4.Remove all expansion cards according to the instructions in “Removing Expan- sion Cards” found in Chapter 2.

B-18 Dell Dimension 900 System Reference and Troubleshooting Guide