Using the System Setup Program 3-7

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Primary identifies drives attached to the primary enhanced integrated drive electron-
ics (EIDE) interface connector (labeled “IDE1” ) on the system board; Secondary
identifies drives connec ted to the secon da ry EIDE interf ac e con ne ctor (labe led
“IDE2”).
For both the Primary and the Secondary drive s ections, the Drive 0 and Drive 1
options identify the type of EIDE hard-disk drives installed in the computer. For each
drive, seven parameters ca n be chosen as a g roup by drive-type nu mb er, enter ed ind i-
vidually from the keyboard or set automatically. A
drive-type number
s pec ifies the
parameters of a hard-disk drive based on a table recorded in the system’s BIOS.
To choose a setting, type characters from the keyboard or use the left- or right-arrow
key to cycle through the choices.
The settings are:
Auto
None
Usr1 or Usr2
A specific drive-type number
NOTES: The Prima ry and Sec ondary drive s ections i dentify only EIDE drives. If a dri ve
other than an EIDE driv e (that is, a SCSI dr ive) is installed , the cor respon ding setting in
the Primary and Secondary drive sections should be None.
Operating systems that bypass the system BIOS may not obtain optimum hard-disk
drive performan ce .

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For EIDE CD-ROM and EIDE tape drives that use the built-in EIDE controller, it is rec-
ommende d that you use the sec ondary EIDE inter fa ce conne ctor if a hard-d isk driv e is
attached to the primary EIDE interface connector.
For all EIDE devices, set the appropriate Drive option to Auto.

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F or EIDE hard-dis k drives, the sy stem pro vides an automa tic drive-type detec t fea ture.
To use this feature for Drive 0, highlight the Drive 0 option and type D (for
automatic
).
To use it for Drive 1, type D at the Drive 1 option. In each case, the set ting c hanges to
Auto. After you reboot the system, the System Setup program automatically sets the
correct drive parameters for each drive.
B ef ore ins talling a ne w EIDE hard-d isk d riv e, also check the doc umentation that cam e
with the drive to verify that all jumper settings on the drive are appropriate for your
configuration.
NOTE: If you are using a hard-disk drive that was shipped by Dell, use the Auto
setting.
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