Table 1-2. System-Board Jumper Descriptions - Dell Dimension XPS H266 Service Manual

Table 1-2. System-Board Jumper Descriptions

Jumper Settings
A, pins 1-3; B, pins 1-6; C,
pins 1-3 (microprocessor
speed)
4 6
4 6
4 6
C
A B
1 3 1 3
1 3
4 6 4 6 4 6
B
A
1 3
1 3
1 3
A, pins 4-6 (reserved)
4 6
A
1 3
C, pins 4-6 (clear CMOS)
4 6
C
1 3
4 6
C
1 3
D, pins 1-3 (password)
4 6
D
1 3
4 6
D
1 3
D, pins 4-6 (setup)
4 6
D
1 3
4 6
D
1 3
Description
The microprocessor's internal speed is
233 MHz.
The microprocessor's internal speed is
C
266 MHz.
Reserved (do not change).
System setup settings are retained when the
system boots (default setting).
System setup settings revert to their defaults
when the system boots. (Set to pins 4-5 and
boot the system to clear NVRAM. Reset to
pins 5-6 to restore default CMOS settings at
system start-up.)
The system and setup password features are
enabled (default setting).
The password features are disabled. (Set to
pins 1-2, and then turn on the system to clear
the password(s). Reset to pins 2-3 to enable
password features.)
Set to pins 5-6 to allow use of the system
setup program.
Set to pins 4-5 to prevent the loading of the
system setup program.
System Overview 1-15