Updated System Setup Categories: Dell OptiPlex GX1 Systems
Updated System Setup Categories: Dell™ OptiPlex™ GX1 Systems
Drives: Primary and Secondary | ACPI | DAC Snoop | System Security | Chassis Intrusion | Operating With a Setup Password Enabled
Drives: Primary and Secondary
System Setup reports hard-disk drives in one of two ways:
- Newer hard-disk drives and all hard-disk drives over 8 gigabytes (GB) are
reported as an enhanced integrated drive electronics (EIDE) drive, without details on
type, cylinders, heads, cylinder numbers, and sectors. See System Setup screens for an
example.
- Older hard-disk drives are reported with full details about type,
cylinders, heads, cylinder numbers, sectors, and size.
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NOTE: For all Dell-installed hard-disk drives, set the appropriate
Drive option to Auto. |
Use one of the following options if you have an older EIDE hard-disk
drive not shipped with the system from Dell and with less than 528 megabytes (MB) in
capacity:
- A specific drive-type number
- Usr1 or Usr2
For each drive, you can choose the seven parameters as a group by
drive-type number or you can enter the parameters individually from the keyboard. A drive-type
number specifies the parameters of a hard-disk drive, based on a table recorded in the
system’s basic input/output system (BIOS).
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NOTE: Operating systems that bypass the system BIOS may not obtain
optimum hard-disk drive performance. |
If you choose the Usr1 or Usr2 option, you must supply the
following parameters for the drive:
- Type is the drive-type number for the selected hard-disk drive (in
this case, Usr1 or Usr2).
- Cyls is the number of logical cylinders.
- Hds indicates the number of logical heads in the drive.
- Pre (precompensation cylinder) is the cylinder number at
which the electrical current for the drive head changes to compensate for differences in
data density across the disk surface (this parameter has no effect for EIDE drives).
- LZ is the cylinder number that is used as the drive’s landing
zone for the heads when the drive is not in use.
- Sec is the number of logical sectors per track.
- Size (automatically calculated by the system) indicates the number
of millions of bytes of storage provided by the drive.
ACPI controls the operation of the system’s
Advanced Configuration and Power Interface (ACPI) feature. The default is On.
When ACPI is set to On, momentarily pressing the power
button places the system in a power-saving mode. To turn the system off completely, press
the power button for more than four seconds. When ACPI is set to On,
interrupt request (IRQ) line 9 is not available for use by an expansion card.
When ACPI is set to Off, momentarily pressing the power
button turns off the system completely. With this setting, IRQ9 is available for use by an
expansion card.
DAC Snoop
DAC Snoop lets you correct video problems that may occur when
certain video expansion cards are used. The default is Off. If you are using a
video expansion card and problems such as incorrect colors or blank windows occur, set DAC
Snoop to On.
System Security configures the password and chassis
intrusion categories. Press <Enter> to configure these categories.
Chassis Intrusion displays the status of the system chassis
intrusion monitor and can be set to Enabled, Enabled-Silent, or Disabled.
The default is Enabled.
If the computer cover is removed while the intrusion monitor is set to Enabled,
the setting changes to Detected, and the following message appears during the boot
sequence at the next system start-up:
Alert! Cover was previously removed.
If the computer cover is removed while the intrusion monitor is set to Enabled-Silent,
the setting changes to Detected, but the alert message is not displayed during the
boot sequence at the next system start-up.
If the intrusion monitor is set to Disabled, no
intrusion monitoring occurs and no messages are displayed.
To reset the Detected setting, enter the System Setup program
during the system’s power-on self-test (POST). At the Chassis
Intrusion option, press any edit key to reset the setting, and then choose Enabled,
Enabled-Silent, or Disabled.
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NOTE: When the setup password is enabled, the setup password is required to reset
the Chassis Intrusion option. |
Operating With a Setup Password Enabled
If the Setup Password option is set to Enabled, you must
enter the correct setup password before you can modify the majority of the System Setup
options. If you do not enter the correct password in three tries, the system lets you
view, but not modify, the System Setup screen, with one exception: if Password Status
is Unlocked, you may modify the system password.
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