Lenovo 6234A1U User Manual - Page 48

Erasing lost or forgotten passwords (clearing CMOS), CMOS/Recovery jumper.

Get Lenovo 6234A1U PDF manuals and user guides View all Lenovo 6234A1U manuals
Add to My Manuals
Save this manual to your list of manuals

Page 48 highlights

Erasing lost or forgotten passwords (clearing CMOS) This section contains instructions on erasing some lost or forgotten passwords, such as a user password. To erase lost or forgotten passwords: 1. Open the computer cover. See "Opening the computer cover" on page 14. 2. Access the system board. See "Accessing the system board components and drives" on page 15. Note: You must remove the hard disk drive to gain access to the Clear CMOS/Recovery jumper. 3. Locate the Clear CMOS/Recovery jumper on the system board. See "Locating parts on the system board" on page 11. 4. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance or configure position (pin 2 and pin 3). 5. Reinstall the hard disk drive. 6. Lower the drive bay assembly and reconnect any cables that were disconnected. 7. Close the computer cover and connect the power cord. See "Completing the parts replacement" on page 37. 8. Restart the computer and leave it on for approximately 10 seconds. Turn off the computer by holding the power switch for approximately five seconds. The computer will turn off. 9. Repeat step 1 and step 3. 10. Move the Clear CMOS/Recovery jumper back to the standard position (pin 1 and pin 2). 11. Reinstall the hard disk drive if removed. 12. Lower the drive bay assembly and reconnect any cables that were disconnected. 13. Close the computer cover and connect the power cord. See "Completing the parts replacement" on page 37. 40 User Guide

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
Erasing lost or forgotten passwords (clearing CMOS)
This section contains instructions on erasing some lost or forgotten passwords,
such as a user password.
To erase lost or forgotten passwords:
1.
Open the computer cover. See “Opening the computer cover” on page 14.
2.
Access the system board. See “Accessing the system board components and
drives” on page 15.
Note:
You must remove the hard disk drive to gain access to the Clear
CMOS/Recovery jumper.
3.
Locate the Clear CMOS/Recovery jumper on the system board. See “Locating
parts on the system board” on page 11.
4.
Move the jumper from the standard position (pin 1 and pin 2) to the
maintenance or configure position (pin 2 and pin 3).
5.
Reinstall the hard disk drive.
6.
Lower the drive bay assembly and reconnect any cables that were
disconnected.
7.
Close the computer cover and connect the power cord. See “Completing the
parts replacement” on page 37.
8.
Restart the computer and leave it on for approximately 10 seconds. Turn off
the computer by holding the power switch for approximately five seconds.
The computer will turn off.
9.
Repeat step 1 and step 3.
10.
Move the Clear CMOS/Recovery jumper back to the standard position (pin 1
and pin 2).
11.
Reinstall the hard disk drive if removed.
12.
Lower the drive bay assembly and reconnect any cables that were
disconnected.
13.
Close the computer cover and connect the power cord. See “Completing the
parts replacement” on page 37.
40
User Guide