Dell Vostro 220 Service Manual - Page 135

Clearing CMOS Settings

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4 Remove the 2-pin jumper plug from pins 2 and 3 and fix it on pins 1 and 2. 5 Wait for approximately five seconds to clear the password. 6 Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2 and 3 to enable the password feature. 7 Follow the procedure in "After Working on Your Computer" on page 45. Clearing CMOS Settings CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance 1 Follow the procedures in "Before Working on Your Computer" on page 35. NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting. 2 Remove the computer cover (see "Removing the Computer Cover" on page 47). 3 Reset the current CMOS settings: a Locate the 3-pin CMOS jumper (CLEAR CMOS) on the system board (see "System Board Components" on page 40). b Remove the jumper plug from the CMOS jumper (CLEAR CMOS) pins 2 and 3. c Place the jumper plug on the CMOS jumper (CLEAR CMOS) pins 1 and 2 and wait approximately five seconds. d Remove the jumper plug and replace it on the CMOS jumper (CLEAR CMOS) pins 2 and 3. 4 Follow the procedure in "After Working on Your Computer" on page 45. 5 Reboot your computer. Your computer will emit five beeps, and then issue a CMOS checksum error. 6 Press to continue. Safety Instructions 135

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Safety Instructions
135
4
Remove the 2-pin jumper plug from pins 2 and 3 and fix it on pins 1 and 2.
5
Wait for approximately five seconds to clear the password.
6
Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2
and 3 to enable the password feature.
7
Follow the procedure in "After Working on Your Computer" on page45.
Clearing CMOS Settings
CAUTION:
Before working inside your computer, read the safety information that
shipped with your computer. For additional safety best practices information, see
the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance
1
Follow the procedures in "Before Working on Your Computer" on page35.
NOTE:
The computer must be disconnected from the electrical outlet to clear
the CMOS setting.
2
Remove the computer cover (see "Removing the Computer Cover" on
page 47).
3
Reset the current CMOS settings:
a
Locate the 3-pin CMOS jumper (CLEAR CMOS) on the system
board (see "System Board Components" on page 40).
b
Remove the jumper plug from the CMOS jumper (CLEAR CMOS)
pins 2 and 3.
c
Place the jumper plug on the CMOS jumper (CLEAR CMOS) pins 1
and 2 and wait approximately five seconds.
d
Remove the jumper plug and replace it on the CMOS jumper
(CLEAR CMOS) pins 2 and 3.
4
Follow the procedure in "After Working on Your Computer" on page45.
5
Reboot your computer.
Your computer will emit five beeps, and then issue a
CMOS checksum
error
.
6
Press <F1> to continue.