HP Compaq Series Hardware And Software Manual page 209

The list below describes the default sequence in which drive
numbers are assigned. (The actual startup sequence varies by
configuration.)
■
Default sequence for devices that boot as drive A:
a. Optical drive in an optional docking device MultiBay or in
b. Diskette drive in an optional docking device or in an
■
Default sequence for devices that boot as drive C:
a. An optical drive in an optional docking device MultiBay
b. Hard drive in the notebook primary hard drive bay.
c. Hard drive in an optional docking device MultiBay or in
✎
Since no drive letter is associated with the NIC, changing the
boot order of a NIC does not affect drive letters of the other
devices.
Hardware and Software Guide
an external MultiBay that contains a disc that boots as
drive A.
external MultiBay.
or in an external MultiBay that contains a disc that boots
as drive C.
an external MultiBay.
MultiBoot
B–3